Best O ring company Guide 2020: (rubber o ring manufacturers)

Best O Ring Company Guide 2020: (rubber o ring manufacturers)

O Ring Company

To choose the right O Ring Company, you should understand not only the scope of its application, but also the accuracy class. The important information that characterizes the product remains the data on the manufacturer and the item number.

The ring is intended to eliminate the occurrence of gaps in various devices. It can be either hydraulic or pneumatic, lubricating or fuel. Accordingly, it is made of rubber, which is of different types in terms of temperature resistance. Nowadays there is not only a type of “rubber sealing ring”. Other heat-resistant materials are also used for the manufacture of such products:

  • silicone rubber;
  • polyurethane;
  • fluoropast;

Why sealing rings are popular in O Ring Company china?

Due to their versatility, rubber sealing rings are the most widely used sealing components in the world. They are found in a wide variety of applications across a wide range of global O Ring Company. They come in a wide variety of sizes and made from a variety of materials to provide an effective seal in all possible environments.

Best O Ring Company produces high quality, high-performance O-rings. The most modern injection molding and compression molding processes are used.

O Ring Company in china

They specialize in the production of O-rings with standard and customer-specific requirements. So you can be sure that the specifications for your application requirements will be met exactly across all phases.

We have worked with a number of applications in various industries, including the automotive and medical industries.

The quantities O Ring Company manufacture range from 5,000 to several million and the components are available in standardized.

Choosing the right O Ring Company

Choosing the right rubber o-ring is critical to avoiding failure. For a full list of common reasons for O-ring failure, please visit our blog, but O-ring performance starts with choosing the right O-ring seal.


Here is a list of things to consider before determining your o-ring needs:

  • Choosing the Right Elastomer Material:Some chemicals react with rubber O-rings and can cause the seal to become hard and brittle. This reduces their ability to act as a bearing force and to seal efficiently.
  • The temperature of the application exceeds the maximum heat resistance of the O-ring:Thermal degradation occurs when the application has exceeded the maximum heat capacity of the elastomer material. This causes a crosslink density, which in turn results in hardness, so that the O-ring loses its elasticity.


What are the types of O rings and their application?

Different demands in the world of O Ring Company and mechanics forced the industry to create different types of sealing rings. In general, its function is the same. However it is its characteristics that change.

Some can withstand heat very well. Others can withstand the corrosion of the atmosphere, acids and so on.

Discover the main types of seal rings; understand their most common applications and their main features!

What is O ring?

The “o-ring” sealing ring has a circular shape and its body is round.

They are generally made from elastomers, which is a characteristic polymer because it is elastic. The materials can be neoprene, nitrile rubber, silicone, and several others.

Your manufacturing measures are tabulated, so to buy, you need to check your O Ring Company catalog. In addition, each O-Ring seal model has a hardness scale, minimum and maximum temperature resistance.

The O-Ring sealing ring can be used in various pneumatic and hydraulic applications. It ensures sealing in connections, even in the face of high temperatures, such as:

  • Acidity
  • corrosion of oils
  • gasoline
  • ozone and in many other scenarios

Its installation is very simple, just place the sealing ring in the specific slot for the component and ensure that it is well aligned.

However, O Ring Company must pay attention to the O-ring seals and carry out periodic checks, accompanied by lubrication, if necessary.

V-Ring Sealing Rings

The V-Ring sealing ring is manufactured for use on shafts that rotate and require protection against dirt, splashes, dust and debris.

It is a single piece of rubber with two protruding lips. Their sealing is axial, against a face opposite the shaft on which they are installed. It can be a chamber for housing the seal itself, the bearing end, a washer, the bearing box, etc.

O Ring Company 2020

The sealing of the V-rings is normally without pressure and made in dry applications. The V-Ring seal ring, when installed, rotates along the axle axially. The movement, together with the shape of the piece, makes the lips protect the construction or machine in question.

When it comes to manufacturing, the materials resemble the O-Ring model. However, O Ring Company has several different profiles, such as:

VA type O ring

For shorter mounting lengths, they are secured with less pressure on the shaft and the lip consists of a chamfer on the part, in the shape of A. The sealing lip seals at a right angle and protects the shaft. It can be used in electric motors, drives and more complex mechanisms, such as gearboxes.

VS type

The type V-Ring sealing ring VS is wider than normal and has a tapered shape, which strengthens the seal’s permanence in place. They are generally used in automotive components and also in agricultural machinery.

VE type

This type is similar to that described above. But the sealing lip has a greater opening angle. It is used in heavy applications, with larger diameters, with high axial pressures, such as sealing laminators.

Type VR-M

The main characteristic of the VR-M type V-Ring seal profile is that it has a flat cross section. It can be installed axially or radially and is used in applications with high turning speed.

Type VR-ME

This profile has a similar shape to the VR-M. However it is shorter, without the characteristic rear part of the VR-M. Its application can also be axial or radial. Moreover, it is used to protect high speed bearings on large machines.

Quad-Ring Sealing Rings

Similar to the O Ring Company, the X-Ring type has a square body. Therefore, it is also known as the “ Quad-Ring ” Sealing Ring , with rounded edges.

It is applied in the same places as a normal O-Ring, however, the X-Ring offers more stability and resistance, which makes it ideal for use in pneumatic and hydraulic systems, sealing axles or rods that have bilateral movements.

In general, there are several other types of seal rings on the market. Their profiles meet a wide range of demands. That is why they are found in countless material options.

Why you need O Ring Company services?

If you come across a machine or service that requires a seal ring, you need to understand the working conditions and then choose the correct model. Thus, you will have a durable seal that preserves not only the connection or the sealed place, but the entire system. It is all possible with a professional O Ring Company.

Failures in the seal can decrease the efficiency of a machine or cause serious accidents. Therefore, choosing the right supplier that offers quality and safe sealing elements is a must!

Today, the sealing ring is in great demand in various industries. This is very easy to explain. The fact is that these products are characterized by high quality and durability, as well as a perfectly flat geometric shape. Due to this, O-rings are actively used for pneumatic and hydraulic devices.

How to choose best O Ring Company in 2020?

If you need to buy O-rings, then you should carefully read the technical documentation and detailed product descriptions. This will help you make an unmistakable choice and purchase exactly those rings. These are required by the design documentation. You can ask a reputable O Ring Company also.

The rubber sealing ring can be used for both movable and fixed connections. These products are manufactured strictly by agreement with the customer. You can choose the following characteristics:

  • density of rubber
  • nominal and inner diameter
  • weight

LOOKING FOR O Ring Company?

Are you looking for a complete option in O´Ring ring supplier? Do you need a service that has all the options and types of this product for use in various machines? So, know that the ideal place for your need is, without a doubt, Dshseals!

Currently, Dshseals presents itself as the best indication for purchasing specific sealing rings. It provides you with all the previous clarifications so that your order is fulfilled with maximum satisfaction and good results.


  • The O Ring Companyhas advantages, such as ease of use associated, in all cases, with greater durability allowing you to have a high performance for longer.
  • It is also possible to use DSHsealsservice more advantageously as a supplier of O´Ring ring due to its characteristics as low weight.



You need a rubber O-ring, but you don’t know where you can order similar products? Then we are ready to offer you an option that you simply cannot refuse. We sell high quality rubber products and are ready to provide customers with all the necessary guarantees.


DSH Seals: Major reasons behind rubber seals failure

DSH Seals: Major Reasons Behind Rubber Seals Failure

DSH seals

DSH seals are the most versatile sealing elements on the market. So today we bring you some important points to let you know a little more about this product.

This sealing device has numerous advantages, among which we can mention the following:

  • Affordable cost
  • It has a reasonable service life
  • Can be used in hydraulic and pneumatic systems
  • It can be subjected to different pressures, positive or negative
  • Manufactured in different types of materials
  • It can be manufactured in different sizes, all according to the customer’s needs
  • When device failures occur, they are easy to identify
  • Simple assembly

DSH seals applications

The DSH seals are widely used in static systems, avoiding the use in dynamic seals. But they can even be used as a rod and piston sealing energizer.
Another point that must be analyzed for sealing in a dynamic system is the support surface of the ring. So that there is no premature wear, as well as there is no damage to the machine structure.

Model variations 

You will also find some variations of the traditional o’ring model, such as the x-ring. The x-ring has a different shape. Moreover, it is not circular, and has four sealing surfaces, two on the top and two on the bottom. Similarly, they are normally used in rotating systems.

Features of installation and restoration of elasticity of seals

Installation of products

The need to install new DSH seals arises both during the installation of the pipeline and connecting the recently purchased plumbing. Furthermore, it happens when the old gasket fails. In any case, it is important that this work is done correctly.

DSH seals Suppliers

You can seek the services of a professional plumber or try to replace the gasket yourself. This requires an adjustable wrench, pliers, and a screwdriver. Hence, all work should be carried out in stages:

  1. Turn off the water first.
  2. Dismantle the structure
  3. Remove the old gasket and clean the place where it stood. Use a rag for this.
  4. Install a new DSH sealsin place of the old one and treat its surface with silicone sealant
  5. Assemble the pipeline assembly back
  6. Tighten all the nuts; achieve complete tightness of the connections.
  7. After 2 hours open the water supply.

DSH seals Installation errors and how to prevent them

Generally, installing DSH seals in flanged and wafer joints is easy. The main thing is to avoid common mistakes that beginners make. These include:

  • wrong choice of the size of the seal;
  • loose fit of the seal to the surfaces to be joined
  • water, dirt and rust on the surface of the gasket
  • damage to the rubber during the installation of the O-ring

Therefore, to avoid these errors, be careful. Select a gasket that is 4-5 mm larger than the piping. Carefully remove the old rubber and carefully clean the place where it was installed from dirt. Then dry both surfaces to be joined with a cloth.

Similarly, place the gasket in its intended place and reassemble the structure. When doing this, it is important to be careful not to move the O-ring.

piston and rod seals

Major applications of rubber seals

DSH seals are widely used in hot and cold water supply, drainage and heating systems. They are also installed in air conditioners, boilers, pressure cookers, etc. These are simple, affordable and reliable joint sealing tools produced by manufacturers in a wide range.

Oil seals are used in various elements of the car, including the crankshaft. They ensure that the lubricant does not leave the engine. The element is made in the form of a ring with an elastic inner edge, and also has a rigid outer rim. In addition, a spring is used to reinforce the inner edge. Subsequently, it prevents oil from escaping to the outside. The devices installed in any car can be of two types:


  1. Rear oil seal. Differs in high wear resistance. It is reflected in the service life, equivalent to the period of use of the vehicle. Moreover, it has bulky dimensions.
  2. Front oil seal. The device is slightly smaller in size and also more prone to wear. The module is located in the cover of the oil pump. To gain access to it, you must disconnect the timing belt element. Therefore, the oil seal itself is located under the lower crankshaft pulley.

Replacing the front crankshaft oil seal

Replacing any part or assembly of a vehicle always takes place in two stages:

  • removing the old worn out module and
  • installing a new one

Crankshaft DSH seals will be no exception. Such repairs will not be complete without a hammer and screwdriver. However, before starting work, you need to stock up on the necessary tools to perform the following procedures: removing the gas distribution mechanism, removing the cylinder head cover. The actual replacement process for the front oil seal consists of three steps.

STEP 1: First of all, the timing belt is removed from all pulleys. After that, using two flat screwdrivers, a gear-type pulley is lifted. Similarly, it must be removed from the toe of the crankshaft.

A car enthusiast who is engaged in repair should not forget about the key. It must be removed with a screwdriver so that it does not get lost.

STEP 2: Using a screwdriver, remove the worn out element from the cover, after which it is lubricated with engine oil. A new oil seal requires the same fluid treatment.

STEP 3: The repairing car enthusiast must press the new DSH seals into the right place using a pipe of a certain diameter or mandrel. This field is repeated in reverse order, everything that is indicated in the first step.

Replacing the rear crankshaft oil seal

Replacing the rear crankshaft oil seal is carried out in the inspection pit or using a lift. The work involves removing the gearbox. Moreover, during this procedure, you should additionally inspect all adjacent nodes. This is due to the fact that removing the gearbox should be attributed to a rather complex and time-consuming process. Due to the high wear resistance of the rear oil seal, it is extremely rare to resort to such actions.

If you need best quality seals, DSH seals are the best option that fulfills your all sealing requirement.


What are different piston and rod seals sizes? (2020 Best piston Guide)

What are piston and rod seals?

Main characteristics of seals

  • Pressure

Piston and rod seals operate at pressures up to 400 bar. But this is their maximum value.

When the hydraulic cylinder is operating, water hammer is possible, i.e. pressure surge.

For example, a stem seal works at pressures of up to 400 bars, if installed together with a protective ring, the pressure rises to 500 bars. Similarly, extrusion can be limited by reducing the clearance between the metal moving parts. But this leads to higher construction costs and requires high precision equipment.

The impact of temperature on piston and rod seals

  • Temperature

Usually the temperature during the operation of the hydraulic cylinder is + 80C. The temperature at the working edge of the rubber rings due to friction is much higher than the oil temperature.

piston and rod seals

As the temperature rises, the viscosity of the working hydraulic fluid decreases. The lubrication conditions deteriorate and the friction and wear of the seals increases. As the temperature rises, the piston and rod seals material becomes more elastic. And it may lose shape stability.

Depending on the operating conditions, it may be advisable to additionally support the dynamic lip.

  • Speed

The speed between the piston and rod seals and the moving sealing counter-surface for elastomeric materials is usually in the range of 0.1 – 0.5 ms. For fluoroplastic materials – up to 5 ms is allowed.

Film appearance and friction are mainly speed dependent. At a speed of 0.05 ms and below, the thickness of the oil film between the seal lip and the metal surface is small. Hence, it results in direct contact. Friction and seal wear increases. At high temperatures, when the viscosity of the hydraulic fluid decreases, stick-slip phenomena can occur. Materials with a low coefficient of friction are used to troubleshoot problems

3 piston and rod seals systems

We have identified 3 piston and rod seals systems for ourselves, which are based on a geographical principle:

  1. European system
  2. Asian, or Korean, system
  3. American system

Their main differences are in seal profile and dimensions. For example, in the American system, the seals are predominantly inch. There are no inches in the Korean system. Of course, this division is conditional, since most of the seals are still similar. But there are also specific ones that are characteristic only for one system.

piston and rod seals manufacturers


  • So, the first element of the seal kit is the wiper (W).
  • Seals for hydraulic cylinders

The main function of the HW is to remove dirt from the hydraulic cylinder rod. And prevent it from entering the hydraulic system.

Depending on the materials:

Combined, the base of which is made of elastic material, and the scraper is made of plastic or metal.

Reinforced wipers with a reinforced structure using more durable materials also belong to the combined ones. The metal frame allows the wiper to be installed in an open groove. It makes it easier to install and prevents contaminants from entering the outer diameter of the seat.

In hydraulic cylinders with high sliding speed, two-component HS are used,:

  1. PTFE sealing ring
  2. and a pressure rubber ring.

Stem piston and rod seals systems

The next element of the repair kit is the rod piston and rod seals. They prevent leakage of working fluid from the rod end of the hydraulic cylinder.

Piston and rod seals for hydraulic cylinders

Depending on the purpose and design, hydraulic rod seals are:

One-piece, mainly rubber or polyurethane seals, solution suitable for most standard hydraulic cylinders.

Combined, if we install a protective ring in one groove with a hydraulic seal, we get a combined seal that works at a higher pressure.

Combined, in turn, piston and rod seals are of the following types:


Expander cuffs – for efficient work in wide pressure ranges.

Buffer: Designed to reduce peak pressures, always work in a system with other stem piston and rod seals. This is typical for the Korean system, first a buffer seal is installed, and then there is a cuff and only then a wiper.

Chevron: They are used under highly loaded operating conditions and with poor quality of the sealing surface. Chevron seals are type-setting, adjustable in height. They are most commonly used in marine hydraulics, ferrous metallurgy and mining equipment.

Hydraulic cylinders with high sliding speed use two-piece seals, consisting of a PTFE sealing ring and a compression rubber ring.

Piston seals

Piston seals are designed to prevent overflow of working fluid from the piston zone to the rod zone.

Seals for hydraulic cylinders

They are divided into two main categories, single-acting seals and double-acting seals, depending on the direction of the pressure generated inside the cylinder.

  1. One-component

One Piece Piston Seals – Made of one material, U-shaped (lip) design.

  1. Combined

They consist of two or more materials; one part of the structure is made of elastic material and has the function of an expander. Similarly, the others can perform sealing and protective functions.

piston and rod seals factory

In what ways piston and rod seals are important?

Compact seals type DBM reduce the metal structure of the piston through the use of guide rings.

Seals for hydraulic cylinders

Piston and rod seals rings are a kind of analogue of plain bearings. They transmit radial forces, absorb lateral loads. Moreover, they also prevent wear of metal elements (housing with rod and piston), since the friction force is already applied to the ring itself.

These rings can be rectangular or shaped. Moreover, they are open-ended by design. On their surface there is a special cut, made straight or obliquely. This cut is needed to relieve excess pressure when the stem is extended.

The cut itself serves as a channel through which the working fluid can flow along the stem. In addition, the presence of such a cut on the body makes it easier to install the guide rings on the hydraulic cylinders – directly into the piston or on the cover.

What is the function of piston and rod seals?

Thus, the piston and rod seals rings are also used as a sealing element that provides the smallest clearances between the piston and the liner or between the rod and the cover. In general, their use will help to increase the reliability of the hydraulic cylinder, while simplifying its maintenance.


In order for the guide rings to withstand such loads, they are made from anti-friction wear-resistant materials, mainly synthetic ones. Synthetic materials in friction pairs are more stable than cast iron and bronze surfacing.

This allows you to increase the functionality and reliability, thereby increasing the product life. Guide rings for hydraulic cylinders require less repair costs and make it easier to replace worn guides. In addition, these seals also come with low price feature.

Manufacturing plants can produce guide rings from various synthetic elements. Hence, it is possible using combinations for the highest resistance of materials to aggressive environments..

PTFE seals have high sliding speed and wide temperature range

Piston and rod seals withstand high radial loads. This makes it possible to use smaller rings in equally loaded cylinders.

Furthermore, it is important to take into account the diameter of the piston sleeve.

Stem guide rings are designed to fit the ring directly into the groove on the front cylinder cover. In this case, the outer surface of the stem will rest on the inner surface of the ring.

Piston guide rings involve the installation of the ring in a groove already on the piston of the hydraulic cylinder. In this case, the outer surface of the ring will slide over the inner surface of the sleeve. Therefore, the piston guide rings have a high radial load and must therefore be wider.

Piston and rod seals for hydraulic cylinders

Piston and rod seals are widely used to seal stationary joints in static conditions. They can also be used to seal pistons and rods under dynamic operating conditions.

Generally, in the free state, the cross-section has a shape close to a circle. The ring is installed in the seat with preliminary compression, while the section takes the shape of an ellipse. Moreover, axial and radial deformation results in a compaction effect.

In high-load operating conditions with an operating pressure of more than 250 bar, the pressure of the O-ring rubber is squeezed into the gap. To avoid deformation, it is recommended to use it together with a protective ring. Such a protective ring does not perform a sealing function.


O-rings are used in various working media:

  • mineral oils
  • liquid fuels,
  • Emulsions
  • Lubricants
  • fresh and sea water
  • compressed air.

Generally, the choice of material depends on the conditions and operating conditions.

Similarly, profile static seals are used exclusively for static applications. In addition, they are highly resistant to twisting. Hence, it prevents the reduction of the sealing effect and increases the service life. Also the advantages of these seals are simple installation and higher wear resistance. Buy best piston and rod seals from dshseals.


What is high pressure rotary seal: (high speed rotary shaft seals 2020)

What is a rotary seal and How Does It Work?


Rotary seal is a term of very frequent use in the production and maintenance of companies that work with some type of fluid. For instance, chemical, petrochemical, oil and gas companies, among many others. If you are in a company that operates a liquid or a gas, you will hear about it, the mechanical seal.

Many of the fluids operated by these companies have risks. W can classify it into occupational risks, such as:

  • life risk
  • environmental risks
  • such as contamination of groundwater
  • and safety risk, such as fire

We will cover these details in future articles.

As nothing works for free, equipment is needed to move or transform these fluids. Enter the so-called rotating equipment. These, in turn, have gaps between the stationary and rotating parts, in such a way that a residual leak is expected. This leak will depend mainly on the type of seal chosen. The most common are gaskets and rotary seal.

What is rotary seal?

But after all, what is a rotary seal?

rotary seal

By definition, rotary seal is a type of machine element, used only in the sealing of rotating equipment. It operates some type of, where centrifugal pumps are the most frequent. But it can also be present in:

  • Compressors
  • Reactors
  • Agitators
  • fans


We already know what it is, but how does it work?

In order to understand how it works, we must first understand how it is constituted.

rotary seal manufacturers

In a very simple way, any mechanical seal will have one or more pairs of sacrifice pieces that are called sealing faces. These are, in most seals, very smooth as they are polished and polished. One face is stationary while the other rotates in solidarity with the axis.

The stationary face is called the seat, mating ring, depending on the manufacturer, of primary ring or slip ring.

As the faces are moving parts and their assembly is not done by interference, a gap will exist at the assembly site. There we have two more leak zones, behind the faces. To prevent this, another sealing element is used that is called secondary seals. These can be O-rings, joints or teflon wedges, “V-ring” , among others.

Important element of rotary seal

An important component of the seal is the elastic element. Many believe that the function of the spring or elastic element is to promote the closing of the rotary seal during the operation of the equipment. But in practice, the main responsible for this is the hydraulic pressure of the equipment.

The spring is essential for closing the seal while the equipment is out of operation.  That is, when there is no operating hydraulic pressure.

To complete the construction of the rotary seal, the torque transmission elements are missing. Who guarantees that the rotating part will rotate jointly with the axis? This is where the pins and the case appear, which also has an assembly function.

The set of parts that has the compensation or axial movement of the mechanical seal is called the seal head. In conventional stamps, it is usually the rotating part. Hence the name rotating head, but it is not a rule. There are many seals, mainly the cartridges, which the seats are rotating.

Now that we know the components of a rotary seal, we can understand how it works.


When the equipment is stopped, the faces of the mechanical seal are fully in contact, due to the spring force.

rotary seal Suppliers

From the moment the equipment starts operating, a hydraulic force starts to act. By Pascal’s Law, the force acts in all directions. And because of that part of the fluid operated penetrates between the faces, separating them. This liquid that is between the faces is called a liquid film or interfacial film.

For didactic and illustrative purposes, we changed the color. And we are exaggerating the distance. This distance is very small and imperceptible to the naked eye.

I usually say that these faces operate at the same time, together and separately. It may seem strange, but it is anyway. During the operation of the equipment, they are generally separated by a distance of 2 to 10 microns.

This distance is not enough to avoid contact between the peaks of the surfaces of the faces.  But it is also not close enough to affirm that they are solidary. Due to this relative contact between faces, we have the first generation of heat in the rotary seal.

Now comes a very important question: “So, what is the connection between the interfacial film and the generation of heat?”


The liquid film has direct contact with the environment and this is where the residual leak comes from. But when generated, this liquid evaporates.

That is why we do not see the leak of the rotary seal with the naked eye. And when the seal is damaged people, in general, say: “The mechanical seal is leaking”.

rotary seal Suppliers

Basic principles of operation of Mechanical Seals

There are two basic types of seals:

  1. static and

Static seals are used where there is no relative movement in the joint to be sealed. Joints and “O” rings are typical static seals.

Dynamic seals are used when one surface moves in relation to the other.

A common application of rotary seal is to seal the rotating shaft of a centrifugal pump.  For a better understanding, it is advisable to quickly review the operating principle of a pump.

  • Suction
  • Rotor
  • Discharge
  • Mirror
  • Shaft
  • rotary Seal

Any pump converts the energy of a drive, such as an electric motor or turbine, into energy in the form of speed and pressure to the fluid being pumped.

The liquid enters the suction flange and flows into the rotor eye. It is driven by the rotor fins being accelerated in the direction of rotor rotation. As the liquid leaves the rotor, the speed of the liquid approaches the speed of the fin ends.

The housing is in the form of a volute or spiral. The liquid moves at high speed from a narrow clearance area to a wider clearance area.  The energy is converted into pressure and the fluid approaches the discharge nozzle, being directed to it.
The discharge pressure will force some of the fluid behind the rotor, where it will attempt to escape around the rotating shaft. Pump manufacturers use several techniques to reduce the pressure of the fluid that tries to escape, such as:
1) Drilling balance holes in the rotor. So that most of the pressure escapes to the suction side of the rotor
2) the addition of small blades on the rear face of the rotor.

Can we eliminate pressure from sealing devices?

However, as there is no way to completely eliminate this pressure.  It is necessary to use sealing devices to limit the leakage of the product into the atmosphere. These devices are typically compression gaskets or rotary seal.
The choice of a sealing method needs to be carefully analyzed for each application. In relation to installation, maintenance, energy consumption, product loss and effluent treatment costs.

Simple Mechanical Seals

The mechanical seal was developed to eliminate the disadvantages of compression gaskets. Leakage can be reduced to a level that meets current standards. And the maintenance cost will be much less. On the other hand, the training of maintenance personnel will need to be of a better level.

The initial cost may be higher, and the mechanical seal may have to be specifically designed for the application. There are two main groups of seals for rotary shafts.

One group is characterized by the theoretical absence of friction between the rotating and stationary elements of the rotary seal. Mechanical bushing and labyrinth seals belong to this group. The second group is characterized by direct friction between the two surfaces. It depends on the rotation of the axis. Within this group, there are two main subgroups.


If you are looking for the best rotary seals, we can assist you in this regard. Dshseals is the home of premium class high quality seals. It is serving industries globally. Hence, you can choose your reliable sealing partner here.


What benefits compact Hydraulic Seals Manufacturers provide?

5 Interesting Facts about Hydraulic Seals Manufacturers (Compact Seals 2020)

Hydraulic Seals Manufacturers

Today’s article is about Hydraulic seals manufacturers. I hope I was able to gather some interesting information here.

Hydraulic seals convince with their high efficiency and strength. Moreover, we mainly use them in hydraulic cylinders. Their job is to seal the retractable cylinder rods. And thus prevent hydraulic fluid from escaping from the cylinder and at the same time protect it from contamination. Shaft seals are available for every cylinder type and for every application. You can find them at any good Hydraulic seals manufacturers store online.

Sealing technology is a comprehensive term that includes a large number of seals. They can be used for a wide variety of applications. The division can be divided into sub-categories. These are:

  • rubber technology
  • dynamic seals
  • flat seals and
  • O-rings

The sealing technology consists of different types of seals

some seals are required for:

  • shaft seals
  • plumbing connections
  • mechanical seals
  • stuffing box packing
  • hydraulic and pneumatic seals
  • And flat seals.

Each type of seal has its own property. For this reason, a special seal is available for each application at a good Hydraulic seals manufacturers online store. At the same time, the seals are available in many sizes and types.

The seals most frequently required for the sanitary sector are coupling seals. Such seals are also important in the pharmaceutical and food industries. We can use different material sin making sealing rings.

Special seals

Shaft seals are required for the use of rotating shafts. This also includes:

  • shaft sealing rings
  • PTFE lip seals
  • fabric sealing rings
  • cassette seals
  • Alphaseal seals
  • shaft repair sleeves
  • Sealing caps and V-rings.

In order for a cylinder to function optimally, it needs pneumatic and hydraulic seals. Many Hydraulic seals manufacturers offer a wide range of products. Moreover, it ranges from simple seals to large, complex sealing systems that have been manufactured for a demanding application.

The manufacturers often have their core competence in the design of rotary seals. These are usually mechanical seals, shaft lip and sealing systems.
A mechanical seal prevents a gaseous or liquid medium from escaping again at the height of the shaft.

Diverse range of Hydraulic seals manufacturers

The technology includes many seals that meet specific customer requirements. It does not matter whether the seals are required as a single piece or as a series production. Nowadays, technical innovations are more and more in the foreground.

Therefore, high-quality sealing solutions are more important than ever. The experience of the customer-related correct material and system technology is becoming more and more important. Many Hydraulic seals manufacturers deal in products from the areas of rubber oil seals.

Hydraulic Seals must be robust and of high quality

For many areas of work, such as engineers, it is important that systems and machines can be reliably sealed. This is the only way to prevent gases or liquids from escaping from machines and systems. The art of sealing is underestimated in many areas.

Hardly any system or machine could work properly if it is not perfectly sealed. Quality and durability play a major role in a wide variety of work areas. In addition, when using seals, an exact fit must always be ensured.

Interesting facts about Hydraulic seals manufacturers

Hydraulic seals are available in various materials, designs and sizes. The dimensions are based on the outside, inside diameter, height and optionally groove width in mm. If you are not sure about choosing the right seal, the providers will be happy to provide you with their know-how at DSHseals.

Hydraulic Seals Manufacturers and suppliers

Use of hydraulic seals

Generally, hydraulic seals manufacturers produce hydraulic seals for linear motion cylinders. There are two versions: a single-acting cylinder with one active direction of travel and a double-acting cylinder with two active directions of travel. Subsequently, hydraulic seals prevent or limit the escape of hydraulic fluids into the environment. The popular range of hydraulic seals includes piston seals, rod seals, wipers and guide seals.

Advantages of hydraulic seals

  • Effective
  • reliably protect the cylinder
  • keep the system clean
  • available for many systems
  • Piston seals

Piston seals can be used in a large number of modern sealing systems. Their job is to reliably seal the piston against the cylinder and to move efficiently with minimal friction and drift. They are suitable for a wide variety of needs.

In contrast to single-acting windshield wipers, double wipers perform a U-ring cleaning function and a cleaning effect to remove external dirt. Moreover, this effect improves the overall tightness. In addition, piston seals seal two cylinder chambers separated from one another by a piston.

To get a perfect seal, you can contact nearest hydraulic seals manufacturers.

Compact Hydraulic seals manufacturers

Compact preloaded seals are also available for piston seals. These compact seals are available in both single and double acting versions. Double-acting seals are sealing elements that can absorb pressure from both sides.

Their use is necessary when, as with differential cylinders. This double-sided sealing effect can also be achieved by using two single-acting seals. For this purpose, an additional installation groove is must in the piston.


Rod seals

Rod seals are used to seal piston rods in hydraulic cylinders. They prevent hydraulic fluid from leaking where the piston rod enters the cylinder. Grooved rings with a shortened inner sealing lip are mainly used as shaft seals. The inner sealing lip ensures dynamic sealing through contact with the moving piston rod.

What benefits compact hydraulic seals provide?

For many hydraulic seals manufacturers compact seals are best option for permanent sealing. Compact seals consist of a sealing element. They are usually PTFE due to its good self-lubricating properties – and an optional integrated O-ring. It preloads the sealing element and thus provides a constant contact pressure.

Hat cuffs

Hat seals are one of the sealing elements of rod seals. They are famous for their strength and high efficiency. Their job is to seal the cylinder rods and thus prevent hydraulic fluid from escaping from the cylinder. Similarly, at the same time protect it from contamination.

You can find a huge variety of hydraulic seals at our online best oil seals store.


5 PTFE seals manufacturers pros and cons (PTFE seals Guide 2020)

Why mechanical engineers produce PTFE seals?

PTFE seals manufacturers

Oil seals are playing an essential and very important role in almost all industries. Basically, these seals provide an optimal performance of all the industrial products and mechanical equipment. PTFE seals are also one of the most important and popular oil seals. PTFE seals manufacturers have manufactured them to use in high pressure appliances.

Furthermore, these seals provide extreme productivity and efficiency for applications with massive temperature. They actually retain lubrication and can block impurities in the bearing system even in high temperatures.

The seals manufacturers produce these seals in many different shapes and sizes. Additionally, the sizes and shapes of PTFE seals totally depend on the shaft diameter of the machines.

PTFE Seals Brief History

PTFE seals are also popular as the name of Teflon®.  These seals had actually discovered by Roy Plunkett on 6th April 1938. He was an employee of DuPont. In fact, he was trying to produce a new chlorofluorocarbon refrigerant.

So, this man was using hydrochloric acid and tetrafluoroethylene (TFE). Roy was making experiment to create chlorofluorocarbon refrigerant, tetrafluoroethylene which was in his experiment bottle stopped flowing.

Just like Penicillin, the discovery of Roy Plunkett also has left many useful and favorable effects. During his experiment he found that there was a coating within the bottle. The bottle which Roy was using, he found it opened and there he got a specific slippery substance.

What is PTFE Definition?

In this way, he had discovered polytetrafluorethylene. The short form of polytetrafluorethylene is PTFE. Later after almost 3 years, this material had patented by Roy Dupont’s subordinate company. They assigned it a new trade name Teflon. But this patent has removed and now there are several different PTFE seals manufacturers all around the world.

Hence, this happy and unbelievable accident has led us to the construction of a wide and useful industry. Today this discovery of Roy Plunkett is serving almost all industries.

Why PTFE seals manufacturers?

PTFE seals has created by using Polytetrafluoroethylene material. Furthermore, Polytetrafluoroethylene is extremely amazing polymeric material. It has several extraordinary features like,

  • durable
  • has great chemical resistance
  • thermally and electrically resistive

Basically, PTFE is very low-cost material for high-performance seals. Additionally, PTFE seals are also famous with another name, Teflon® seals. In fact, Teflon® is famous for its heat-resistant and non-stick features. Manufacturers are using PTFE seals in almost all industries. Such as,

  • Agriculture
  • Beverage and food
  • Mining
  • Recreational Vehicles
  • Over-the road
  • Rail transportation
  • Recreational Vehicles, etc.

How do PTFE seals manufacturers design best ptfe seals?

PTFE seals manufacturers have designed PTFE seals for high temperature applications. They sometimes call them

  • fluid seals
  • oil seals
  • dirt seals.

When we use seals for high temperature, PTFE seals provide wider service range in comparison to elastomeric seals. Moreover, PTFE seals also an ideal choice for the vast array of media that the seal encounters and also for shaft speed.

Generally, the material of polytetrafluoroethylene is extremely resistant for all acid and chemicals.

So, PTFE seals are perfect for sealing all types of chemicals and acids. PTFE seals are also best choices for dry applications and for corrosive and harsh media because of self-lubricating properties.

Why ptfe seals have become important?

PTFE seals manufacturers are preferring these seals because they help to reduce friction. The friction which occurs by contacting the PTFE lip and sealing surface (shaft). Furthermore, these seals also consume less power and have longer life in comparison to elastomer lip.

Seals manufacturers have produced them with the blend of many fillers and a virgin PTFE. These fillers are very helpful to reduce the operating temperature. And they also provide many physical properties during service which applications need.

Moreover, with the features of reducing temperature and friction these seals will provide longer life.

PTFE seals manufacturers and suppliers

What are some additional properties of PTFE seals?

The additional properties of PTFE materials mean we generally know this material as non-stick coating for special cookware. Because in cookware the heat resistance and inertness have special importance. Although it was an accident discovery but has become an essential need in today’s modern industry.

Moreover, the features or properties which has make PTFE so useful and beneficial are:

  • Low friction
  • Corrosive resistant
  • Durable
  • Inert
  • Non-flammable
  • High electrical resistance
  • Self-cleaning
  • Very effective in wide ranges of temperatures.
  • High pressure in excess of 500 psi (35 bar)
  • Custom design profile

So, because of these properties PTFE seals designers are widely making use of PTFE seals.

Which materials PTFE seals manufacturers use in PTFE seals?

PTFE seals manufacturers select all the materials by considering the benefits and drawbacks of materials. In fact, there are hundreds of several different types of materials of PTFE with a huge variety of fillers.

Moreover, the most common fillers which manufacturers use with PTFE materials are,

  • carbon
  • glass fiber
  • metal oxides
  • molybdenum disulphide,
  • graphite and many different kinds of polymers.

All the above materials also have many different kinds of properties. In addition, these materials are suitable for several different kinds of service conditions and application. But all these fillers with PTFE materials have improved resistance to deformation and wear.

PTFE seals manufacturers states that when we use PTFE seals without these fillers, PTFE seals provide lower coefficient of friction in comparison to a filled PTFE material. So, if we use unfilled PTFE materials, these seals will provide limited resistance to deformation and wear under load.

Advantages which PTFE seals manufacturers state about PTFE seals

Although there are many advantages or pros which PTFE seals have. Moreover, we are trying to describe some of these.

Corrosion resistance:

PTFE is the best choice of material for those media which is not compatible with typical compounds of rubber or corrosive or caustic chemicals. It is one of the best corrosion resistant materials which manufacturers use in almost all industries. Furthermore, PTFE material is waterproof to all industrial chemicals and greatly corrosion resistant. Hence, PTFE seals manufacturers are using PTFE material in such conditions.

Capabilities of wide temperature range:

The temperature range ability of PTFE is -325°F to +500°F. This is actually beyond the range of almost all elastomers. PTFE is best choice for high temperature conditions and cryogenics like, combustion processes, oven. Other ordinal materials can rule out in such very high temperatures.

In fact, very low temperatures can result the most rubber compounds to harden which are not proper for many applications. But PTFE material are also best in such conditions. Moreover, PTFE remains pliability and flexural even at cryogenic temperature.

Long shelf-life:

Those application which need extended or long-life service, PTFE is the best choice in corrosive environments. On the other hand, on the other hand, some elastomers may result the best but are not suitable for many years. So, for Long shelf-life PTFE seals manufacturers use PTFE seals.

5 pros and cons of PTFE seals

Furthermore, PTFE materials also have some additional benefits in comparison to rubber compounds.

  1. PTFE is long-life, durable and unaffected from UV lights
  2. Virgin PTFE is FDA Compliant
  3. It does not swell because of moisture
  4. PTFE consists of ideal electrical features like,
  • electrical resistance
  • dielectric strength
  1. PTFE is not sensitive to flammable decompression

Here are 5 drawbacks of PTFE seals

  1. There is a possibility that it can change shape under pressure
  2. It is costly polymer
  3. PTFE is not easy for mass production
  4. It is not weldable
  5. PTFE material may not be cemented

Furthermore, PTFE seals manufacturers describe that PTFE is not suitable for extremely high temperatures like it can melt at 326 Celsius.


Pro Tips for installing piston seals catalogue (Sept.2020)

How to install Piston Seals Catalogue properly? Step by step Guide

Piston seals catalogue is a vital part of any machine.  This material is essential for the reliability of the piston

The material often selected to meet these requirements is PTFE. It exhibits exceptionally low sliding and static friction as well as good chemical resistance.

piston seals catalogue

However, piston seals catalogue have some limitations. The most notable is the limited elasticity of the material with a risk of damage to the seals during assembly. PTFE gaskets should be stretched using special sleeves prior to installation. And then calibrated to the correct diameter.

Tips for installing piston seals catalogue

It is important to follow accurate guidelines to install piston seals.

  • Before installing the sealing parts, all mating parts of the hydraulic unit must be flushed from:
  • Dirt
  • shavings and other foreign particles

You should clean with compressed air and coated with working fluid.

Similarly, one needs to be careful. Because sharp edges of parts with which the seals may come into contact during installation. Technician should make them round.

The end of piston seals catalogue must have a chamfer.  The dimensions of which are shown in the descriptions for each seal type. The edge at the transition from the chamfer to the sliding plane must be rounded and polished.

During installation, do not push seals over sharp edges of grooves, holes, threads, etc.

  • The accessories used during the installation must be made of soft material. It should exclude damage to the seals. And in addition, be suitable for the type and dimensions of the seals.
  • To increase the flexibility of seals, it is recommended to preheat them with immersion before installation:

Piston seals catalogue material guidelines for installation

1) For thermoplastic polyester and fluoroplastic in boiling water for 1-2 minutes;

2) For thermoplastic polyurethane in hot oil for 1-2 minutes.

piston seals catalogue suppliers

Installation of piston seals

Piston seals catalogue can be installed in open or closed grooves. Small seals with a diameter of up to 50 millimeters are recommended to be installed in an open groove.

This installation method is done manually and is usually straightforward. Fitting flexible seals into a closed groove can be done manually. At the same time, using 2 synthetic tapes threaded under the sealing element, it greatly simplifies the installation process.

The installation of little elastic seals on integral pistons must be carried out using special mounting accessories.

When installing two-piece seals, the rubber grip ring is first installed manually. Twisting the ring is not allowed. This method guarantees piston seals catalogue:

  • Ease
  • accuracy and
  • safety of installation

To eliminate the possibility of rupture, O-rings made of PTFE-based material must be pre-heated.

Rod piston seal installation

Rod Seal Installation Similar to piston seals, rod seals can also be installed in open and closed grooves. It is recommended to install seals with an outer diameter less (6-8) times the profile thickness in an open groove. Such installation is possible without using additional devices (manually).

Fitting the piston seals catalogue into the closed groove is done using a suitable plastic mandrel and plug. When installing two-piece seals, first insert, without twisting, the compression rubber ring and then the profile sealing ring.

The process of installing rod seals is greatly simplified by the use of special pliers. To avoid sharp bends of the seal, the diameter of the fingers on the pliers must be at least (0.15-0.2).

After installing the seal, it is required to calibrate it with a special mandrel. In terms of dimensions, surface quality and the presence of a lead-in chamfer that completely repeats the hydraulic cylinder rod.

An oiled mandrel should be pushed into the low pressure side of the piston seals catalogue. It should be go with slight twisting to both sides. Moreover, one needs to and pull smoothly through the seal.

Due to the age of use or misuse, the hydraulic seals fail over time and must be replaced. The design engineer can reduce the damage done to hydraulic seals. By keeping in mind what usually leads to failure and trying to prevent negative impacts.

Piston seals catalogue Hardening

Piston seals catalogue when exposed to high temperatures. This can be caused either by a high fluid temperature or by a high rate of heat generation from stroke operations. When the cuffs harden, they crack and lose elasticity. It results in seal damage.


Due to insufficient lubrication or excessive lateral loading, wear on the dynamic seal lip surface can cause significant damage.


Installation tools and processes are critical to maintaining seal life. Improper installation can result in cuts or dents in the dynamic lip of the oil seal. This affects the performance of the hydraulic oil seal and also introduces foreign material into the hydraulic fluid.


Cracking is a condition resulting in scorching, tearing, long cracking and complete rupture of the dynamic side of the cuff. This is due to excessive back pressure, high pressure shocks / surges, or the use of poor quality materials in the cuff manufacturing process.

Incorrect installation

As previously mentioned, improper installation can create problems with the piston seals catalogue. This can lead to contamination and incorrect calibration of the selected cuff. The selection of the cuff prior to assembly is very important to ensure that the design is correct and to ensure proper sealing.


External debris entering the hydraulic rod will cause contamination. When particles of dirt or powder adhere to the piston, they contaminate the seal. The dirtier the seal, the more it loses its ability to seal against contamination from the piston area.

piston seals catalogue company

Piston seals catalogue conclusion

The piston seals catalogue is destroyed when it encounters a corrosive liquid. This occurs when the wrong seal material is selected for the fluid. The use of incompatible materials results in chemical attack of the oil additives. This leads to disruption of the contact surface at the lip of the cuff. Cuff discoloration is an indicator of chemical erosion.


Choosing the Best hydraulic seals manufacturers: 5 Things to consider

3 Major Hydraulic Seals Manufacturers Sealing Types

Hydraulic systems depend on a fully efficient operation for the fluidity of liquids in a fast and very functional way. To ensure that everything is in order and working perfectly, it is necessary to keep up with the hydraulic seals manufacturers. It is only with a well-sealed system that efficiency can be measured.

Hydraulic seals manufacturers

The well-sealed cylinders primarily prevent the leakage of hydraulic system fluids. Moreover, it ensures the constant speed of the system’s actuators. In addition to the main sealing prevention factor, it must ensure that the system works well at high pressures. Similarly, the internal transversal forces are active.

Hydraulic seals manufacturers Sealing types

Hydraulic systems need to go through several types of seals. It is to be:

  • Functional
  • constant and

For this reason, there is a combination of factors that must be done. So, there is the possibility of a pressure increase in the piston half. And the cylinder can extend or retract effectively.

Hydraulic seals manufacturers should also focus on the scraper seal. It is mainly for cleaning purposes. It is responsible for removing:

  • dirt
  • impurities
  • foreign particles or
  • moisture from the actuator stem

Moreover, it should ensure that they do not enter the hydraulic system and contaminate the oil.

Hydraulic seals manufacturers Problems encountered in unsealed cylinders

Inadequate seals are the main villains of a hydraulic system around the cylinder. They can lead to a number of problems, among the most common and the most worrying. Improper installation can and should be avoided by hiring the service by a specialized professional.

Other very common problems are:

Oil contamination

usually caused by external issues that enter the system due to poor sealing;

Heat degradation

Mainly due to the high temperatures at which the seal is placed in contact and a bad installation.

Loss of system speed due to constant leaks

Have you learned how sealing a cylinder works and its importance for a hydraulic system to work perfectly? Now it’s time for Hydraulic seals manufacturers to be here to help you!

DSHseals is an expert company. Similarly, we are always updating and progressing with our products and services to better serve what you are looking for.


Check out some information about machined seals used in hydraulic cylinders. So, you can learn a little more about these products.

What are?

A hydraulic cylinder, in short, is an actuator. Subsequently, it aims to transform hydraulic energy into mechanical energy. And the seals machined for this equipment, it aims to seal the system. Furthermore, it keeps the fluids in the internal environment minimizing leakage. Hence it prevents the entry of impurities from the external environment.

The machined seals are manufactured to measure, through a set of actions. That use the high technology of the:

  • CNC lathe
  • specific software and
  • tools

It is to create a part with high performance for the customer.

Applications of Hydraulic seals manufacturers for hydraulic cylinders

Hydraulic cylinders and consequently their seals, can be found in different segments:

  • Food
  • Pharmaceutical
  • Forestry
  • Mining
  • Petrochemical
  • Steel
  • mechanical metal
  • pulp and
  • paper industry
  • in agriculture, in the road sector and much more.

Without Hydraulic seals manufacturers, it is impossible to meet the requirement of these industries.

To exemplify where we can find these parts in our day-to-day, we can mention machines such as:

  • cranes
  • tractors
  • backhoes and
  • hydraulic presses
Advantages in choosing machined seals for hydraulic cylinders

Hydraulic seals manufacturers and suppliers

Choosing machined seals for hydraulic cylinders within your system brings some advantages, such as:

  • Cost-effective when compared to traditional sealing models
  • Production time is around 1 working day
  • Tailored parts to meet your needs
  •  There is no need to change measurements of your equipment
  • Wide range of profiles available
  • Parts with greater durability and high performance
  • It dispenses with classic processes such as mold making, vulcanization and curing of the part.
  • More than 15 different compounds for different applications

Hydraulic seals manufacturers machined Seal Models for Hydraulic Cylinders

You will find several profiles of machined seals to be used in systems with hydraulic cylinders.

Each profile has a specific application. There are several options of:

  • Gaskets
  • o-rings
  • Scrapers
  • guide rings, and much more.

It is worth remembering that the models are made to measure. Hence, it means that there is no need to change the hydraulic cylinder of your system.

Materials for making parts

Hydraulic seals manufacturers can manufacture the seals machined for hydraulic cylinders. Each one is indicated for a specific purpose.

The most used raw materials are Nitrile Rubber, Teflon-PTFE, and Polyurethane. However, it is possible to manufacture machined seals from other materials, such as:

  • FPM – Viton;
  • FDA silicone
  • Polyacetal
  • Polyamide
  • UHMW
  • Special compounds and more

What to take into account when choosing the type of hydraulic seals?

Each profile and material have its particularities and characteristics. It makes them preferable for specific conditions.

Therefore, we have separated a list of items that must be analyzed. Moreover, it helps you choosing the best machined seal for the hydraulic cylinder of your system, check out:

  • the pressure range of the system to be sealed
  • the temperature range of the system to be sealed
  • Speed of movement of the hydraulic cylinder
  • dimension of the hydraulic cylinder to be sealed
  • which the application / function of the hydraulic cylinder

What are the main Hydraulic seals manufacturers applications?

Discover now everything you need to know about rubber seals

The rubber seal for sealing is an extremely reliable product. It certainly meets all the needs of any company. Furthermore, it ensures that there is no product leakage.

Hydraulic seals manufacturers produce important parts on various machines in the industry. The rubber seals are manufactured from different synthetic compounds.


How do O Ring Suppliers Take the Measurement of an O-ring?

Best rubber seals hacks for plumbing

Known for many years and appreciated for its efficiency, the O Ring Suppliers present in many areas of everyday life. Anyone can access their services for a very little money? In this guide, we will explain to you about choosing the best o rings for different purposes.

O Ring Suppliers

What is an O-ring?

It is a part in the form of a ring. Generally, it makes it possible to ensure the seal between two interdependent parts. It is used a lot in domestic plumbing (valves, etc.). Similarly, it is also popular in the fields of mechanics or industry.

Generally, O Ring Suppliers design it in rubber material.  Moreover, this seal can be made of other materials according to the compatibility of the fluids. You can make it according to the mechanical resistance too.

Oil seals operate under radial or axial constraints. Moreover, these ensure a gap in static condition. There is no movement between two parts.

  • It supports many temperature variations
  • waterproof and perfectly resistant to bad weather
  • It resists residual deformation (retaining its shape and elasticity properties),
  • Its hardness varies between 70 and 90 Shores A
  • Takes up little space in the toolbox!

How do O Ring Suppliers take the measurement of an O-ring?

What you will need:
A caliper
A notebook and pencil to record your measurements


O Ring Suppliers propose different common situations can justify that you have to replace this type of component. For instance, when you work on a leaking faucet or on a dripping faucet! We recommend that you take the right steps before you run out and buy a new set of gaskets. Even though they are very cheap. To do this, use a caliper and:


  1. Do not try to overlap the old gasket to take the ribs. Its wear could have relaxed it, and distort the measure,
  2. Measure the section of the torus (its thickness),
  3. Measure the outside diameter of the torus,
  4. Moreover, measure its inside diameter .

How to ensure O Rng Protection?

How do O Ring Suppliers ensure good protection of these seals while increasing their service life. Similarly, how to reduce the risk of leaks caused by their deterioration?

A recurring question that many manufacturers ask themselves

“Using o ring lubricant is a new maintenance solution with an enriched formula. Hence, it protects and considerably increases the life of the O-rings used, regardless of their size.

O-rings are used for many industrial applications. And in particular in all cases where, in a small footprint, good sealing is necessary. Indeed, composed of rubber, NBR, or FPM, for example, the O-ring provides an excellent seal, both in:

  • static and
  • dynamic applications

Principle of operation of O Ring Suppliers

The O-ring is a basic sealing system commonly used in industry. It is a circular ring of round rubber section. O Ring Suppliers make it to mount in a groove and compress to prevent the passage of a fluid.

It can be used:

  • In static or dynamic mounting
  • For pressures and depressions
  • For all kinds of fluids or gases

The O-ring works by an initial tightening called compression. This tightening must be kept in all dimensional configurations of the assembly. (Groove at maximum dimension and joint at minimum).

As the rubber is incompressible, the volume of the groove must be greater than the volume of the O-ring.

Assembly advice for O rings

We strongly recommend that you contact your O-ring supplier for the design, choice of material and sizing of your O-ring seal.

Note: It is also important to carry out tests and validate your design with prototypes simulating the minimum and maximum compression.

The assembly of an O-ring can sometimes require a significant effort during assembly. It may come with following steps:

  • Screwing
  • lever arm
  • press, etc.

It is necessary to embed 30 ° chamfers on your pins and bores and shield to facilitate assembly and prevent extrusion of joints in the assembly.

Contact your supplier to check that the material of your O-rings is suitable for your conditions of use:

  • operating temperature range
  • pressure
  • nature of the fluid to be sealed
  • relative movement speed

The importance of O Ring Suppliers in your piping

The plumbing seal is very important to ensure the tightness of all your pipes and also that of your faucets. The seals should also be proportional to your mechanical fittings. Their diameter is assumed to be the same. You can ask for the best seal from nearest O Ring Suppliers.

Choose the o rings of your piping system

The plumbing seal should be selected based on the intended use. There are all types on the market. To be able to choose, you must therefore know which one you will need beforehand. If you have difficulty knowing it, do not hesitate to call on the expert O Ring Suppliers. In addition, plumbers recommend changing the gasket each time you work on a fitting.

O Ring Suppliers company

Seals and their uses

Seals can be fitted with a wide or narrow flange. The wide flange is useful for mechanical connections. On the other hand, the narrow flange is designed to seal the fitting.

There are also O-rings, which are used to seal the moving internal parts of the valve. In addition, flat rubber gaskets to seal plastic assemblies. Then there is the valve plug for drilled or full valves, which hermetically closes the plug valves.


The plumbing fitting must fit snugly into the fitting in which it is to be installed. You can take help from any good O ring suppliers. Fiber optic gaskets for flat-seat plumbing fittings are referred to by the thread size, in inches or millimeters. These values ​​should not be confused with the actual dimensions of the rubber seals. For the valve O-ring, it is necessary to determine the outside diameter and the cross section of the toroid. For the valve head seal, the outside diameter and thickness must be taken into account.


10 most common oil seals manufacturers Materials

How oil seals are important for optimal performances?

No matter in which industry you are, perfection of manufacturing of any mechanical equipment totally depends on its optimum performance. For optimal performance you have to choose perfect oil seals manufacturers. Hence, you add oil seals in all your equipment for ideal and long-lasting output without any breakdown or complications.
oil seals manufacturers

Moreover, customers will only rely on those oil seals manufacturers who will produce long life products or mechanical equipment. So, the mechanical products which use oil seals with high accuracy will perform greatly under extreme conditions. They will also give their best even in outdoors and during hard circumstances.

Furthermore, for the satisfaction of consumers manufacturers should add oil seals which can maintain the perfect efficiency of mechanical products.

What are oil seals? Oil seal manufacturers

Oil seals are actually rotary shaft seals and mechanical engineers commonly use them in their products. Basically, they use these oil seals to separate oil or grease inside the equipment. Oil seals manufacturers also use these seals to protect their products from dust and water to get inside the machine. Furthermore, oil seals actually have,

  • a flexible rubber sealing lip
  • a helical tensioned spring
  • and a helical tensioned spring.

Hence, a flexible rubber sealing lip rubs against the rotating shaft in order to avoid the leakage. In fact, the spring maintains the contact of lip with the shaft. Furthermore, these oil seals are actually dynamic seals which include a rotating member and a stationary member. This rotor in fact turns with the shaft.

The main purpose of the oil seal is to close the gap between moving and stationary parts of any machine or equipment. Oil seals manufacturers have designed these seals to keep the fluids separate and retain. Moreover, oil seals also prevent the grease and oil to intermixture. If the oil seal will fail to perform its job you have to face some serious damages in your machine.

Hence, the performance of your products and machines totally relies on the selection of good oil seals.

What are the general features of oil seals?

The main purpose of oil seals is to provide best sealing performance and corrosion resistant.

Actually, these oil seals are,

  • inexpensive
  • quite simple
  • compact
  • light-weight

components. These oil seals basically serve two functions:

1: To avoid the leakage of,

  • lubricants
  • chemicals

2: also save the entry of impurities like,

  • dust
  • dirt
  • corrosion

into complicated or even simple machinery or products. Oil seals manufacturers have designed these oil seals for ideal production. It is very cheaper and low-cost in comparison to other main industrial parts or components like,

  • shafts
  • bearings

10 most common materials which oil seals manufacturers use for oil seals

In fact, manufacturers have created oil seals from several different materials. Moreover, they select these materials according to the needs and demands of customers.

But here are 10 most common types which manufacturers use to construct best oil seals for your ideal products. These most common kinds of materials are:

  • PTFE
  • Silicon
  • Nitrile
  • Fluoroelastomer ( Viton )
  • Polyacetal
  • Nitrile Buna Rubber
  • Polyacetal
  • Fluorocarbon
  • PTFE Filled Polyamid
  • Fluoro-Silicone.

Types of oil seals which Oil seals manufacturers produce

Oil seals are ideal to prevent leakage and are corrosion resistant. Moreover, these seals are easily available in several sizes in order to match the different applications and machines. Here we are providing some of the most common types of oil seals manufactured by oil seals manufacturers. These are:

  • A single lip rubber coated w/spring
  • BDL double lip
  • BODL double lip metal case
  • BO single lip – metal case
  • AODL double lip

Manufacturers advise that it is really important for machines to select the right type according to their needs. Furthermore, sealing performance really effect the overall result of the products.

Which 4 factors oil seals manufacturers consider for optimal performance?

Remarkable technicians and maintaining engineers must pay a full attention to the following factors while selecting oil seals. Moreover, they have to select the best materials according to these 4 parameters such as,

  1. pressure
  2. temperature
  3. lubricants

Here is complete detail of all these parameters.

  1. Pressure:

Oil seals manufacturers mostly manufacture the oil seals for low pressure products and applications. Hence, they will not perform better in high pressures. So, always make sure that you are using oil seals according to the temperatures.

Seals manufacturers

Moreover, for optimal performance you have to select high pressure oil seals for high pressure products. Additionally, you can also move to pressure free structure.


Mechanical designers have to pay their full attention in selecting the material according to the temperatures. They should know the exact temperature of the environment where they are using oil seals. They should select the material for oil seals which better suits the temperature of products’ environment.

oil seals which oil seals manufacturers have designed for the low temperature will develop cracks or damages in high pressure. So, the type of oil seals really affects the performance of the products. Hence, always select oil seals that are suitable for temperature.


If you want to improve the performance of your oil seals, you have to choose the oil that is perfect for your product. Moreover, it has to be compatible with the rubber of seal lip. There should be perfect compatibility between lubricants and materials of oil seals.

So that they can give you maximum performance. If there is no compatibility between the both then you can face serious damages.


Oil seals manufacturers advise the designers to pay their full attention in order to fit the oil seal. If it has not fitted at its place, it can cause excessive wear at one side. And in this way, it will cause to shorten the lifespan of oil seal.

So, always get sure that shaft and bore centers are perfectly in line. Moreover, they should fix properly. If they not fit accurately then they can cause leakage of lubricants. In this way the performance of machines or products will extremely effected.

What are the famous applications of oil seals?

As we know that oil seals are become part and parcel for all the mechanical equipment. Furthermore, oil seals which oil seals manufacturers produce have now used by designers in,

  • automotive
  • agriculture
  • material handling
  • construction
  • gas and oil
  • mining and many more.

But mechanical engineers are also using them in assembly of,

  • Engines
  • Conveyors
  • Wind Turbines
  • Grinding Mills
  • Elevators
  • Pipelines, etc.


Basically, oil seals allow all the mechanical equipment and applications to perform perfectly and trustworthy. They prevent the leakage and provide the best sealing features between the parts. Moreover, without oil seals the products will not perform accurately and become non-functional.

oil seals expand the life span of your products and hence your customers will rely on your products. Oil seals manufacturers are serving in all industries by producing these seals. So oil seals are also helpful to reduce the friction among several parts.

But for best performance you should pay full attention to select the perfect oil seals for your products. The best oil seals are those which fulfils all your needs in different applications. In fact, you have to consider all the needs of your products and should select the ideal material for maximum production.


4 important points you need to know about seals manufacturers

Which material seals manufacturers use in oil seals? (O rings Guide 2020)

oil seals manufacturers

Seals manufacturers are the most versatile sealing elements on the market. So today we bring you some important points to let you know a little more about this product.

Advantages of the seals manufacturers

This sealing device has numerous advantages. Among which we can mention the following:

  • Affordable cost
  • It has a reasonable service life
  • Can be used in hydraulic and pneumatic systems
  • It can be subjected to different pressures, positive or negative
  • manufactured in different types of materials
  • It can be manufactured in different sizes, all according to the customer’s needs
  • When device failures occur, they are easy to identify
  • Simple assembly

Seals manufacturers applications

Seals manufacturers are widely popular in static systems. They are providing their services for auto industry too.

Another point that must be analyzed for sealing in a dynamic system is the support surface of the ring. So that there is no premature wear. Moreover, there is no damage to the machine structure.

Model variations 

You will also find some variations of the traditional o’ring model, such as the x-ring.
The x-ring has a different shape:

  • non-circular
  • and has four sealing surfaces
  • two on the top and
  • two on the bottom

They are usually used in rotating systems.

Which material seals manufacturers use in oil seals?

In addition to traditional nitrile rubber, seals manufacturers can make these seals with different materials.

Each material has its particularities. But the most used in the manufacture of this element are:
NBR: material most used in the manufacture of o-rings, nitrile rubber is indicated for seals in general;

Polyurethane: this material is a kind of plastic. It is formed by thermoplastic polymers. Moreover, it is a good substitute for synthetic or natural rubbers;

Viton: this elastomer has excellent resistance to high temperatures, and to chemical attacks;

Neoprene: it has exceptional resistance to deterioration.

EPDM: Generally, it works in a wide temperature window. Similarly, it can be applied in steam generators. They have good weather resistance.

Silicone: It has good resistance to high temperatures and chemical attacks. In addition, this material is not suitable for dynamic sealing. Because it has a low mechanical resistance. That is why, seals manufacturers rarely use it.

Seal Manufacturers: different types and uses

It is a mandatory component in several areas of the industry.  Subsequently, the sealing ring plays an essential role: sealing connections of all types. And while it may not seem like much at first glance, this simple component ensures that the industry at all scales works.

It is usually composed of variations of rubber. The seal ring is an element that looks like a circular and hollow rubber piece.

They work as an extremely resistant seal. Due to their excellent performance, seals manufacturers produce such rings on higher scale. You can find them in every industry almost. This mechanics ensures that the sealing ring supports high pressures. Moreover, it prevents leaks of any kind.

Its measures and characteristics change according to demand. Regardless of the scale, the sealing ring is an essential component for modern mechanics.  In short, it can be applied both to immobile joints.

What are the types of sealing rings and their application?

Different demands in the world of manufacturing forced seals manufacturers to create different types of sealing rings. In general, its function is the same. However, it is its characteristics that change.

Some can withstand heat very well; others can withstand the corrosion of the atmosphere, acids and so on.

Discover the main types of seal rings. Understand their most common applications and their main features!

oil seals manufacturers and suppliers

O-Ring Sealing Rings

The “o-ring” sealing ring has a circular shape and its body is round.

They are generally made from elastomers. It is a characteristic polymer because it is elastic. The materials can be:

  • Neoprene
  • ethylene propylene
  • nitrile rubber
  • nitrile rubber
  • Silicone and several others

The seals manufacturers use sealing ring in various hydraulic applications. They ensure sealing in connections, even in the face of:

  • high temperatures
  • acidity
  • corrosion of oils
  • Gasoline
  • ozone and in many other scenarios

How do seals manufacturers install sealing ring?

Its installation is very simple. Just place the sealing ring in the specific slot for the component and ensure that it is well aligned.

However, maintenance personnel must pay attention to the O-ring seals. Furthermore, he needs to carry out periodic checks. He can use lubricants too if it is necessary.

V-Ring Sealing Rings

The V-Ring sealing ring is manufactured for use on shafts. These shafts rotate and require protection against dirt, splashes, dust and debris.

It is a single piece of rubber with two protruding lips. Its sealing is axial, etc.

The sealing of the V-rings is normally without pressure. Subsequently, seals manufacturers make it in dry applications. The V-Ring seal ring, when installed, rotates along the axle axially. The movement, together with the shape of the piece, makes the lips protect the machine in question.

When it comes to manufacturing, the materials resemble the O-Ring model. However, V-Ring seals have several different profiles, such as:

VA type

For shorter mounting lengths, they are secured. In addition, they have less pressure on the shaft. The sealing lip seals at a right angle and protects the shaft. It can be used in electric motors, drives and more complex mechanisms, such as gearboxes.

VS type

The type V-Ring sealing ring VS is wider than normal. And it has a tapered shape.  This strengthens the seal’s permanence in place. They are generally used in automotive components and also in agricultural machinery.

Conclusion oil seals

In general, there are several other types of seal rings on the market.  Seals manufacturers are working hard to improve the performance of seals. Their profiles meet a wide range of demands. That is why they are found in countless material options.

Failures in the seal can decrease the efficiency of a machine or cause serious accidents. Therefore, choosing the right supplier that offers quality and safe sealing elements is a must!

Did you understand how vast the world of sealing rings is? There are several models and applications that move the entire industry! So, if you want to know a reliable supplier with experience in the market, visit Dshseals.


Why Oil Seal Suppliers are the best choice for oil leaking issues?

Learn what advantages o-rings provide to prevent leakage

Oil Seal Suppliers and manufacturers

What comes in your mind when you think about Oil seal suppliers? So, we are providing a detail information about seals and their importance.

It is very critical to use seals in all mechanical equipment. Because they have become essential to prevent leakage for better performances. Manufacturers use seals to avoid failure of their mechanical components. Seals have become part and parcel for every industry.

Basically, they are useful to prevent following issues in industrial parts,

Such as:

  • extreme temperature
  • particulates
  • corrosive
  • highly viscous of fluid.

In addition, oil seal suppliers use seals in many applications,


  • automobiles
  • rockets
  • ships
  • household appliances
  • industrial plant equipment and so on.

Furthermore, it is really important to select the perfect and ideal seals for efficiency of your mechanical equipment. Oil seal suppliers claim that oil seals are an ideal solution for all of your systems.

What are oil seals according to Oil seal suppliers?

Oil seals are actually very simple devices. And designers use them to secure mechanical parts from

  • dust
  • soil
  • water and many other impurities.

Moreover, oil seals protect bearings of rotating shafts. They help to close spaces between moving and stationary parts in all mechanical equipment. And these oil seals also help to prevent lubricating escape.

So, oil seals help prevent lubricating in various precision bearings or some particular area from escaping. They are also helpful to stop corrosive moisture from entering the shaft bearings.

Oil seal suppliers and manufacturers also call these seals as o-rings. Because they prevent leakages in the joints of mechanical components.

In addition, they have become essential in all recent technologies for efficient and highest level of performance. These seals do not allow dangerous contaminants to enter in mechanical parts even in extreme environments.

What are some other names of oil seals which Oil seal suppliers deliver?

Nowadays these oil seals have gained highly importance in all industries. Thus, designers and manufacturers also call them by some other names.

The other famous names are:

  • shaft seals
  • lip seals
  • Rotary Shaft Seals
  • elastomeric lip seals
  • grease seals
  • dirt or fluid seals
  • rubber oil seals
  • oil gaskets

How do oil seals work, an explanation of Oil seal suppliers?

Here is an explanation by oil seal suppliers about the working procedure of oil seals. They create a very thin layer of oil between the shaft and rubber sealing lip. This layer of oil which is very thin performs as a barrier.


And hence stops leakage of oil which past from the sealing lip.

Furthermore, these oil or grease seals make sure the consistency and gives reliable performance.

What are the uses of oil seals that Oil seal suppliers provide?

Today oil seals have got a great importance and are essential for almost all industries.

For example:

  • automotive
  • agriculture
  • equipment manufacturing for all major uses, etc.

And all these industries are important and necessary from our daily life to industrial development.

Designers had to face great leakages during many manufacturing processes. So, they got the solution of these fluid leakages in the form of oil seals.

Oil seal suppliers describe that makers have developed them to fight all these critical issues. So that they can avoid from these problems and can get efficient output without any disturbance.

Hence, primary or main purpose of oil seals is to satisfy their users by closing all joints between their mechanical components. So that there will be no chance of any damage.

Some major uses of oil seals are:

oil seals not only fix the gaps but also useful to stop any dangerous contamination from entering the mechanical parts. therefore, oil seals keep safe all delicate and sensitive parts by getting damage.

  1. These oil seals can also secure the delicate components of industrial or mechanical parts from,
  • Abrasives
  • Moisture
  • contamination, etc.
  1. Oil seal suppliers claim thatthey are also useful to keep the necessary liquids separate from various components.

Hence, they are also known as distinguishing factor among all oil base lubricants and water.

  1. Oil seals make sure the successful operation of vehicles. They are also useful for all precision parts, like:
  2. rollers
  3. sleeve
  • ball bearings

These are closely fitting to these seals.

  1. Suppliers state that manufacturers make oil seals with different international designs. So that they can easily fit and can fill all the needs of different industries. Therefore, they are different by their,
  • Materials
  • Design
  • configuration

in order to fulfil different needs of several mechanical equipment.

Oil seal suppliers claim that Oil seals are highly popular because of their distinctive qualities of many liquids. Furthermore, they are able to make sure the reliable and consistent performance of all mechanical parts and systems.

Hence, manufacturers use these oil and grease seals for all types of industries. They are also applicable in thousands of applications in,

  • power transmission
  • oil refineries
  • off-highway
  • automotive industries.

What are the famous kinds of oil seals supplied by Oil seal suppliers?

Nowadays oil seals help the manufacturers to be sure about the reliable and consistent performance of all systems and applications. They have gained so much popularity because of their features that, it is impossible for industries to stand without them.

Oil Seal Suppliers in china

Hence, Oil seal suppliers defines some famous kinds of oil seals.

These famous types are as follows:

  1. U-ring seals
  2. O-ring seals
  3. v-ring seals
  4. spring installed seals
  5. rotary oil seals
  6. bearing isolators
  7. clearance seals

Which materials do Oil seal suppliers use in oil seals?

There are many kinds of materials which seal designers use to produce oil seals.

We are providing a chart of materials and their specific range of temperatures.

No.     Material name        Minimum temperature    Maximum temperature Resistant to.
1.      Aflas® (TFE/P)         -10°C and +205°C     -20°C and +250°C) Petroleum Oils, Steam, H2S
2. Viton® (Fluoropolymer FKM)         -20°C and +205°C           -45°C and +230°C Petroleum Oils, Gasoline
3.  Fluorosilicone (FVMQ)         -60°C and +180°C                  +200°C Petroleum Oils, Gasoline
4. Carboxylated Nitrile (XNBR)                  -55°C                 +135°C Petroleum Oils, Water
5. Viton® (Fluoropolymer FKM)         -20°C and +205°C           -45°C and +230°C Transmission Fluids, Petroleum Oils,


6. Hydrogenated Nitrile (HNBR) or Highly Saturated Nitrile (HSN)  

-30°C and +170°C



CO2, Petroleum Oils, H2S
7. Fluorinated Ethylene – Propylene (FEP)                -55°C


                 +205°C Countless chemicals
8. Simriz® (Perfluoroelastomer FFKM)


          -50°C and +327°C                  +350°C Many chemicals
9. Polyurethane (AU)           -15°C and +85°C          -50°C and +100°C Petroleum Oils, Hydraulic Oils
10. Silicone (VMQ)           -60°C and 250°C


                  +300°C Petroleum Oils,  Number of Acids



Oil seals suppliers are best choices for sealing purposes and they are ideal choices because of their materials.


How do Oil seal manufacturers replace car cylinder oil head seal?

Choosing the right Oil seal manufacturers means paying attention to its dimensions

Oil seal manufacturers in china


Your seal must be suitable for the mechanical connection on which it is in contact. It must be changed each time the connection is changed, and their diameters must be identical. Only reliable oil seal manufacturers can ensure durable oil seal performance.

Finding the right seal is therefore above all to ensure that the seal fits perfectly to the fitting in which it will be installed.

Task of the valve cover oil seal

The valve cover closes the cylinder head of an engine and contains the actuating elements for the valve control. The following tools work together for constant cylinder performance:

  • Camshaft
  • hydraulic valve lifters
  • rocker arm
  • numerous springs

Of course, oil seal manufacturers must lubricate this valve train also. A valve cover oil seal is required to reduce wear and tear. Moreover, it prevents engine oil and exhaust gases from being released into the environment. It seals the transition between the cylinder head and valve cover.

Spring energized seals suppliers

Why is the valve cover oil seal leaking? oil seal manufacturers

While valve cover seals used to be made of cork, nowadays rubber and plastic are used almost exclusively. The material is cheap, robust and easy to shape.

However, the thermal, chemical and mechanical loads ultimately ensure that the valve cover oil seal becomes hard and porous. Once the valve cover oil seal has lost its flexibility, it is only a matter of time before the first leaks appear.

If oil seal manufacturers ignore the problem, the elasticity of the valve cover oil seal is completely lost. When the old seal is removed, the material can then shatter like glass.

How do oil seal manufacturers recognize a leaky valve cover oil seal?

Leaks at the valve cover are always noticeable through escaping oil. While this cannot easily be assigned to the outside of the engine, oily spark plugs are always a clear symptom.

If engine oil gets into one of the spark plug wells, it can only enter through the corresponding seals. Since these are always available as an oil seal set, it can be concluded that the valve cover oil seal is no longer in order either.

In addition, professional oil seal manufacturers can take a closer look at the weak points of the valve cover. In particular, the recesses for the timing chain sprockets tend to leak. And therefore usually have to be treated with extra long-term sealing compound when changing the seal.

oil seal manufacturers Instructions for changing the valve cover oil seal

In order to be able to change the valve cover oil seal, the valve cover must of course be down. In any case, this requires that the engine cover, the spark and the corresponding ignition cables are removed. But that already exhausts the commonalities of all cars.

Depending on the vehicle, the camshaft can also be built into the cylinder head cover. If this is the case, oil seal manufacturers should use an appropriate locking tool. The camshafts must not rotate relative to the crankshaft.

As soon as the valve cover has been removed from the cylinder head, you can begin to remove the old oil seal. And you can also thoroughly clean the contact surfaces. This applies to both the valve cover and the cylinder head.


In this step, it is particularly important not to make any scores or scratches in the material and to use the appropriate scraper at a shallow angle. The spark plug wells are stuffed so that no crumbs fall into them. And you should also be careful with the oil holes so that no dirt gets into them.

How do oil seal manufacturers replace oil seal?

If the sealing surfaces are clean, oil seal manufacturers can use the new seal. Under certain circumstances, the seal is made with a sealant. It must be applied evenly and with a steady hand.

The instructions for use must be observed. Because the sealant can only be used for a certain period of time. Oil and water wells must never be smeared. If you only have to insert the valve cover oil seal, it is easier.  However, certain areas are often additionally processed with sealing compound. The critical points can be found in the manufacturer’s instructions.

After the seal on the valve cover has been replaced, it must be put back on the cylinder head. This is best done in pairs, because it has to stay straight so as not to smear the sealant.

Oil seal manufacturers then tighten the valve cover with the appropriate torque and new screws in the correct order. If you want to do something good for your car, plan an oil change right away.

What do you have to consider when changing the valve cover oil seal?

oil seal manufacturers recommendations

Changing the valve cover oil seal is something for professional oil seal manufacturers. And should be done strictly according to the instructions. It starts with dismantling. Because as a rule the valve covers screws have to be loosened in a certain order so that there is no tension in the material.

In addition, in the case of sealant, neither too much nor too little should be applied. A thin, continuous sealing sausage that is applied quickly and does not clog any holes. However, it requires skill and experience. During assembly, new valve cover screws are also always used.

It must be tightened again in the correct order with the appropriate torque. If it is necessary to disconnect the camshafts, you should always contact a specialist oil seal manufacturers.

What does it cost to change the valve cover oil seal?

The cost of changing the valve cover oil seal is made up of the material costs and the wages for the workshop. A seal from specialist oil seal manufacturers such as dshseals costs little. The effort for the installation varies, however.

Depending on how many additional units have to be removed. And how long it takes to clean the sealing surfaces. It takes between 30 minutes and 3 hours to change the valve cover seal.

In particular, if the oil changes did not take place regularly it makes the process significantly more expensive.


Best 5 Rubber Seals Suppliers lubricants to try in 2020

What are rubber seals and rubber seals, suppliers?

Rubber Seals Suppliers in china

Rubber seals which rubber seals suppliers supply to various industries are basically very important devices. However, designers use these devices in order to prevent the leakage of lubricating oil. This leakage of lubricating oil occurs in mechanical equipment.

Furthermore, these devices close the spaces between the stationary and moving parts of mechanical equipment. Suppliers of these rubber seals helps almost all industries to seal the mechanical equipment. Because these rubber seals are essential parts for any industry.

So, nowadays these suppliers of rubber seals are serving in many ways to all mechanical industries.

How many names do rubber seals have which rubber seals suppliers provide?

There are 3 other names of rubber seals which rubber seals suppliers assign them.

Hence, rubber seals are also famous for 3 other names.


These names are:

  1. rubber oil seals
  2. oil gaskets
  3. oil seals.

Which type of rubbers do rubber seals suppliers use in rubber seals?

It is a fact that designers use both synthetic rubber and natural rubber to design rubber seals.

Here are more details of these two kinds of rubbers which suppliers use in manufacturing rubber seals.

These are:

  • Natural Rubber
  • Nitrile Rubber
  • Styrene Butadiene Rubber
  • Silicone Rubber
  • Butyl Rubber.

Which lubricants are best for rubber seals?

It is a fact that silicon lubricant is safe for rubber seals and also for O-rings. Since lubricant of silicone has 4 qualities,

  • this is waterproof
  • this is lubricant
  • it is low cast
  • it is available at almost all stores of auto parts.

Moreover, rubber seals suppliers can use this silicone grease on following,

  • rubber seals
  • O-rings
  • pumps and hoses
  • pressure washer wands.

In addition, olive oil is also good for all rubber products.

Is Vaseline good for rubber seals?

Seals suppliers advise to designers that they should avoid to use different petroleum products or Vaseline in rubber seals. It is a fact that different petroleum products or Vaseline should not use on neoprene items or rubber.

Because they can damage these neoprene objects and rubber highly rapid. They suggest that silicone-based lubricant is a perfect lube for these seals. Since this lubricant comes with Teflon or it may be Teflon free.

What are the famous types of rubber seals suppliers produce?

Rubber seals suppliers explain that there are different kinds of rubber seals. And designers use these rubber seals according to the needs of their applications.

In fact, there are different sizes of rubber seals which totally depend on the capacity of equipment. These rubber seals can easily fit on different pipes, valves and many other types of openings.

Hence, you can use these seals where you want to stop lubricating oil leakage. But basically, there are two main purposes of using rubber seals. and these are:

  1. to stop leakage of lubricating oil in machining parts
  2. to hold the oil in its right place.

These seals make sure that any dangerous or harmful substances cannot leak or enter in different parts of equipment.

Moreover, some famous kinds of rubber seals which Rubber seals suppliers provide are:

  1. Oil seals
  2. Rubber-O-Ring
  3. Mechanical seals
  4. Dynamic seals
  5. Balanced seal.

And here are further important kinds of rubber seals,

  1. Lip seals
  2. Bellows seals
  • Rubber piston seals
  1. Bidirectional pressure Seal
  2. Rubber hydraulic seals
  3. Wiper seals
  • Rubber V seals
  • Rubber U seals

What are the uses of rubber seals?

Rubber seals basically use to seal or join two mechanisms or systems together. These rubber seals are usually ring-shaped parts which have designed to limit or stop the leakage of fluids from device. Basically, there are several kinds of seals supplied by rubber seals supplier which designers use in multiple applications.

Moreover, these applications consist continuously moving equipment. These moving cylinders and shafts which shape a necessary part of pneumatic and hydraulic structures include seals of cars windows.

Manufacturers use these rubber seals in precision bearings in order to maintain lubrication in bearings. Hence, these seals stop corrosion to enter the bearings.

Furthermore, rubber seals have become vital part in,

  • marine applications
  • aerospace, etc.

Because in these applications atmospheric stability is really essential.

Additionally, some other uses in daily life are:

  • garden houses
  • kitchens
  • swimming pool pump systems
  • bathrooms

In addition, designers also use rubber seals as an insulation and in several other kind of applications.

But these rubber seals suppliers also clarify that rubber seals can have in following forms, like,

  1. gel
  2. putty
  3. strip
  4. film, etc.

So, they have ability to adhere,

  • glass
  • paper
  • concrete
  • bricks
  • metal
  • leather
  • wood

However, these rubber seals will also adhere to,

  • other molded rubber materials
  • textiles
  • ceramics
  • porous surfaces and many other composite materials, etc.

Rubber seals suppliers clarify about some more applications of rubber seals

There are several other kinds of rubber seals that manufacturers use in industries for different purposes.

Hence, here are some industries which use these rubber seals:

  • Medical and pharmaceutical
  • Food and chemical processing
  • Aerospace
  • Waste disposal
  • Automotive
  • Marine
  • Nuclear
  • Military
  • Pulp and paper mills

In addition, rubber seals supplier say that many other applications also include,

  • mechanical seals
  • pumps & valves
  • hydraulic & pneumatics cylinder
  • actuators
  • filter
  • engine
  • motors
  • lubricating System, etc.

What are advantages of using rubber seals supplied by rubber seals suppliers?

Environment resistant

Rubber is very strong ang stable material. it has ability to accept all its environment changes, like:

  • temperatures
  • chemicals
  • oils
  • UV exposure, etc.

highly flexible:

Plastic is naturally flexible and it has an ideal sealing ability for connecting purposes. They are very useful in following,

  • O-rings
  • hydraulic seals
  • gaskets

Temperature resistance

Rubber has capability to withstand at high temperatures at both scales. particularly, silicone rubber has ability to tolerate low temperature of -100* C and high up to 310*C. So, rubber seals supplier state that rubber seals are perfect and an ideal solution for mega waves in temperature.

Rubber Seals Suppliers and manufacturers

Compatibility with many other materials

It is very easy to mix rubber with many other substances. Designers mix plastic with some other materials so that these rubber seals perform better in extreme temperatures. And hence rubber seals can get length of their lives and better compression abilities.


Suppliers describe that all these benefits make rubber seals a perfect choice for all industries. Moreover, plastic seals are affordable and ideal choices for manufacturers to use in all industries. Because these seals are reliable for water resistance.

On the other hand, rubber seals suppliers also justify that manufacturers should keep save these seals from,

  • fats
  • oils
  • some strong acid, etc.

Why Spring energized seals are better than rubber o rings?

Spring energized o ring beginner guide 2020

Spring energized seals suppliers

In the market there are different designs of Spring energized seals. These are used to control a fluid through a pipe; cutting, bypassing or modulating its pace.

Moreover, different valve designs cover different operating requirements. Before selecting a valve type and its construction materials, following points play an important role:

  • the operating pressure
  • temperature
  • flow, environment
  • conditions
  • and operating requirements

What are Spring Energized Seals?

Spring energized seals are seals generally made with PTFE. And they may have PEEK inserts, materials which have exceptional physical and technical characteristics. But they are not elastic. To overcome this limit, different types of springs are used.

They provide a constant load along the circumference of the gasket. Moreover, they create a perfect seal between the casing and the machinery. The various types of springs have different properties and characteristics.

Generally, the properties significantly influence the:

  • sealing effect
  • the behavior in the presence of friction and
  • the wear of the compression ring


How do Spring energized seals work?

The spring energized seals, regardless of the type of profile and the shape of the spring, all have the same operating principle. The sealing effect is obtained through the specific preload of the plastic casing. Moreover, the mechanical preload of the spring plays the same role.

The radial contact pressure forces are sufficient for the perfect sealing of a non-pressurized application. In the presence of pressures above one hundred bar, the contact forces over the entire sealing surface increase.

What advantages do Spring energized seals offer?

Spring energized seals are used in both dynamic and static applications. Here chemical-physical working conditions go beyond the limits of traditional seals. However, even when standard gaskets might satisfy basic needs, many engineers choose energized gaskets for an added level of reliability.

What are the application fields of spring seals?

There are many industrial sectors in which spring-energized seals are used.

  • Automotive: for ex. in direct petrol injection;
  • Food industry; for example. packaging and dosing
  • machines – Mechanical industry: eg. computer numerical control (CNC) machines, compressors,
  • vacuum pumps and also in the construction of tank systems;
  • Medical technique and laboratory analysis: eg. endoscopy and chromatography;
  • Aviation and aerospace industry: eg. in landing gear systems;
  • Painting technique: eg. valves for dyes;
  • Hydraulics and pneumatics: eg. in valves, solenoid valves, cylinders and pumps;
  • Chemical industry: eg. construction of equipment and tanks;
  • Off-Shore technology: eg. seals for crude oil and methane;
  • Adhesives industry: eg. valve needle seals.

Spring energized seals typically consist of a polymeric jacket and a metal spring. Furthermore, it provides a consistent load across the entire circumference of the seal. It is to create a reliable sealing condition between the jacket and the equipment.


System pressure creates additional sealing force between jacket and seal housing. In this combination, the spring forces the lips of the seal toward the housing and stem surfaces. Similarly, the pressure assists the force exerted by the spring.

Corrosion resistance high pressure PTFE spring seal

The lack of lubrication at start-up does not impair the Spring energized seals performance. In addition, it can effectively reduce wear and friction resistance. Moreover, it greatly improves the sealing performance and service life.

Spring energized seals usually use the elasticity of elastic materials to obtain good sealing performance. This type of sealing ring performs well in static applications with proper pressure and temperature. Under suitable environment and operating conditions, sealing rings can achieve a good sealing effect.

What affect Spring energized seals performance?

However, when your application involves sealing with corrosive media, standard Spring energized seals will quickly lose performance. They become brittle and often fail quickly.

Chemicals with high toxic concentrations can accelerate the degradation of rubber materials. In the past few years, although the rubber industry is also trying to develop materials with higher chemical resistance. It has obtained some costly solutions.


In addition to chemical properties, pressure, temperature range and cycle times are also very important. When the application environment is close to extremely high pressure, the Spring energized seal will not be used.

The dshseals spring energy storage seal is specially designed for such severe conditions.


dshseals sealing ring consists of two parts:

  1. polymer material bushing
  2. metal spring energy storage ring.

This spring combination can withstand all corrosive media. And it maintains elasticity and sealing performance even under high pressure and low temperature.

Spring energized seals manufacturers

It should also note that the Spring energized seals design for the standard groove size. It may constitute a design limitation when developing new systems or equipment.

Due to the design freedom provided by the manufacturing process, the size of spring energy storage seals is suitable for almost any type of groove. Custom design becomes the standard way to use spring seal products.

What are the benefits of Spring energized seals?

Longevity is another advantage of Spring energized seals design. Because it contains metal energy storage ring and polymer material. This kind of sealing ring has a longer service life than rubber O-ring.

I want to share a case related to the oil and gas industry: We have successfully provided seals for subsea valves. According to its specifications, the seals must have a service life of at least 25 years. This duration is far beyond the capabilities of standard rubber O-rings.


Among the various sealing solutions on the market, Spring energized seal is one of the products that give the highest added value. Its benefits can be comprehensively calculated from multiple aspects.

Such as:

  • longer service life
  • fewer downtimes
  • operating time and
  • maintenance requirements.

The rotating seal spring energy storage sealing ring is a pressure-assisted sealing device. Both the jacket and the energy storage spring have excellent corrosion resistance.

When the spring energy storage sealing ring installs in the dense groove, the spring compress. And the lip of the jacket press against the sealing groove, thereby forming a seal.

Spring energized seals conclusion

The Spring energized seals provide permanent elasticity to the sealing jacket. And it compensates for material wear and offset of the matching parts. The system pressure will also assist the sealing jacket to accumulate energy.

Through the spring elastic force and the system pressure, it can achieve regardless of high pressure or low pressure. Effective sealing. Spring energy storage seals widely use in dynamic and static motion.


What are the Different Varieties of Piston Seals Available

Step by Step Guide to learn piston seal design, advantages, and working

piston seals company in china

What are piston seals?

Piston seals make sure that any fluid or some other type of media will not pass around the piston. Because the pressure of system accelerates the piston downward the cylinder in the process of a pressure cycle.

Piston rings or seals are basically active or dynamic seals. They are usually of two types, like:

  • single-acting piston seals
  • double-acting piston seals.

Furthermore, it totally depends on the requirements of cylinder that, which kind of piston seal will it use.

These seals actually manage contact of sealing between the cylinder bore and the piston.

And this moving piston rod in fact produces extreme pressure on the piston seal. That boost contact forces between the cylinder surface and seal. Because of this, the qualities of surfaces of the sealing surfaces are very crucial for accurate seal performance.

The other name of piston seals is piston rings. Manufacturers use these piston rings in hydraulic cylinders in order to seal the fluids. They are actually inside the cylinder head and seal opposite to the cylinder bore. So, they stop fluid from flowing through the head of the cylinder.

This increases the pressure on one side of the piston, which causes the cylinder to retract or extend.

What are the materials that designers use in piston seals?

When it comes to materials which designers use in piston seals, it totally depends on the selection of seal profile. The use of materials truly depends on essentials qualities and on the profile. In addition, manufacturers make use of many materials in a piston ring. But at the same time, it is also possible that they can use only one material.

On the other hand, most common piston rings can use the following materials,


  • thermoplastic polyurethane (H-PU)
  • Viton
  • nitrile rubber (NBR)
  • acetal
  • polytetrafluorethylene (PTFE)
  • EPDM, etc.

Furthermore, when designers design the piston rings for some special and specific application. Then designers have to consider the expected pressure as well as consider the acceptable friction losses. And also checks whether the head of piston is split or integral.

Hence, it is clear that manufacturers manufacture the piston seals on the basis of usability and function. Moreover, they also classify them according to their needs and requirements.

How do piston seals work?

Piston rings work in such a way that, they contain pressure on one side of the piston and prevent leaking. So, they allow greatest mechanical exertion to apply to move the piston with the cylinder bore. Hence, piston rings have intended to stop or prevent leakage ahead the piston.

And hence these seals have ability to maximize the performance of the system. These piston rings have capability to drive either for both purposes either,


  • pneumatically

Piston seals allow to do this by the help of a proper piston seal which designers design for every application. In order to drive ram, pressure can apply from one or two directions and piston can fix from both. Although piston seals have known as a different kind of hydraulic seals. And these seals are actually a variety of rod seals.

What are most common types of piston seals?

Basically, there are two main types of piston rings according to their basic functions.

And these are:

  • hydraulic piston seals
  • pneumatic piston seals.

Here we are giving the complete information about these two types of piston rings.

Hydraulic piston seals:

hydraulic piston seals are one of the best piston seals. Because they have ability to provide determined protection in very strong and heavy-duty hydraulic applications. And they also make use of these seals for high-temperature and extreme environments.


There is a wide range of these seals which have strategically built and designed to use in hydraulic applications. Moreover, these hydraulic applications have designed to work in the conditions of high pressure and high temperature.

Designers have designed these piston rings to operate in pressure up to 7250 PSI (500 bar). And they also have capability to operate above the described temperature under some special conditions.

pneumatic piston seals

Manufacturers have used pneumatic seals for some basic applications or systems. Designers have designed these piston seals with wisely selected materials which are corrosion resistant. These rings are best for lower operating pressures. These seals also perform properly in rotary along with reciprocating motion. In addition, these seals are perfect for pneumatic cylinders and valves.

What are design considerations for piston steals?

Here are some design considerations of piston rings. So that they can perform properly during high and extreme pressures. Furthermore, they provide best sealing performance as well as maximum durability.

  • Pressure Rating
  • Lip vs. Squeeze Seals
  • Single- or Double-Acting Piston Seals
  • Non-symmetrical Piston Seal Design
  • Seal Lip Geometry.

Pressure Rating:

The maximum ratings of pressure of these seals has highly affected by these factors, like:

  • Wear rings
  • Extrusion gaps, clearances
  • Seal material
  • Temperature
  • Back-up rings

Lip vs. Squeeze Seals:

Primary design of piston steals expressively affects all in all function of the seal. And it happens specially at low pressure. Manufacturers of these seals also provides a complete series of low-friction piston rings for more challenging applications.

These seals are:

  • Lip seals
  • Squeeze seals.

Single- or Double-Acting Piston Seals:

These seals basically contain two types of seals.

For example:

Uni-directional or Single-acting:

These seals have ability of sealing dynamic pressure from just one side.

Bi-directional or Double-acting:


These seals have ability of sealing active and dynamic pressure from two sides.

Non-symmetrical Piston Seal Design:

Here are 3 features and advantages of non-symmetrical piston seal design.

  • The shape of outer diameter lip is different from the lip of inner diameter.
  • These type of piston seals provide sealing contact for low and static pressure sealing.
  • These seals are most stable and also provide best sealing efficiency in comparison to symmetrical seals for example,
  • Polypak type seals
  • U-cups.

Seal Lip Geometry:

Here are 3 types of these piston seals.

These are:

  1. Knife-edge and straight seal lip
  2. Beveled seal lip
  3. Rounded seal lip

What are the benefits of piston seals?

piston seals suppliers and manufacturers

Piston rings have multiple benefits over other types of seals. Furthermore, uses of piston rings have several advantages in industrial applications or systems.

Some benefits are:

  1. These seals are useful in low as well as high pressure system operations.
  2. These are low cost.
  3. These piston rings do not allow dirt or any other impurity to enter the inner mechanical system.
  4. Designers can easily eliminate failure of the incorrect installation.
  5. Manufacturers can order these piston rings in bulk because these are cost-efficient.
  6. Designers have designed these piston seals for very long service lives.
  7. Most important benefit is, there is lack of need for the purpose of tightening.
  8. It is very easy for an engineer to change a piston ring. He can change it in just a few minutes.
  9. Designers use piston rings to reduce eruption on oil plants
  10. These seals have ability to prevent all leakage, hence they can reduce chances of repairing.


Piston rings or seals are most beneficent hydraulic seals. These seals are cost effective and very easy to use. Piston rings also have ability to perform as,

§ Single acting piston seals

§ Double acting piston seals.

Hence, they are effective in both cases for single acting as well as double acting performances.

So, Piston seals have ability to prevent any leakage of fluid and any media. They are very effective in hydraulic seals.


5 possible causes of hydraulic rod seal failure

Hydraulic and piston seal repair guide 2020

hydraulic rod seal manufacturers in china

Hydraulic rod seal are amazing devices that we use in many industries. They operate the excavators of construction machinery. Moreover, they are used in agricultural machinery, and discreetly in factories and furniture. So how does hydraulic rod seal work?

The hydraulic cylinder is a device made up of 3 main elements.

 These are:
  1. the cylinder which contains a movable piston attached to a rod
  2. a fluid which circulates inside the tube
  3. and joints in flexible materials which ensure the tightness of the system

The job of the hydraulic rod seal is to transform energy into mechanical force. By putting the liquid under pressure by injecting it from one side. Furthermore, in this way the piston is pushed. It is a movement that can be used to lift a load.

There are two categories of hydraulic rod seal

  1. Single-acting hydraulic cylinders

This model only works in one direction. Under pressure, the oil is sent to one of the 2 chambers to cause displacement of the piston and the rod.  In addition, the return can be by spring or by an external force.


2- Double-acting hydraulic cylinders

Generally, this model is controlled by 2 ports. To move the rod in or out, hydraulic pressure must be sent to one of the chambers.

This model gives you the possibility to feed the 2 rooms at the same time. Just use different pressures to limit the force and speed of movement.

Function of hydraulic rod seal

We find the seals in several places across the hydraulic cylinder.

The hydraulic rod seal is placed between the piston and the cylinder wall. It is designed to allow the oil pressure to push it against the wall and cause a great sealing force.

The role of the O-ring is to prevent oil from escaping between the rod stuffing box and the cylinder wall.

For the stem seal, it takes the shape of a “U”. Its job is to prevent oil from escaping between the stem and the stuffing box and to scrape the oil off the stem.

As for the wiper seal, it prevents dirt from entering the cylinder.

Usually the gaskets are made of:

  • polyurethane
  • viton or
  • nitriles

Hydraulic cylinder repair: hydraulic rod seal

The hydraulic cylinder can be subject to many types of failure.

The twist of the rod

Under intense resistance, hydraulic rod seal can twist. In this case, you simply have to order the part from a supplier to replace it. If the twist is slight, it is possible to correct the positioning of the rod.

The cylinder leak

This is the most common failure. This can be external or internal. In the second case, the leak is very difficult to identify.


To correct this problem, either replace the affected part or go through lapping or chrome plating.

Subsequently, a hydraulic cylinder can be damaged over time. This cylinder can then remain fragile if it is not repaired. Similarly, it requires good maintenance to ensure proper functioning of the machines that use it. Because it allows mechanical movement to be generated via hydraulic energy.

The hydraulic rod seal are mainly used in:

  • Agriculture
  • the construction sector
  • industrial handling or
  • in the transport sector

In the event of a failure, the entire system can malfunction. And in some cases this can cause significant damage or even be dangerous.

 What to do then as soon as hydraulic rod seal failure occurs?

We offer you an overview of the various possible breakdowns and the different repairs that must be carried out in the event of a breakdown.

  1. The various possible failures of hydraulic cylinders
  2. The most common failures that cause the actuator to malfunction are:
  3. Twisting of hydraulic rod seal

The rod may twist if there is too much resistance when deploying the cylinder. Moreover, this failure causes immediate malfunction and is quite easy to notice. We can then opt for a replacement of the rod or rectify its position if the torsion is slight.

Even with slight torsion calling in hydraulic rod seal specialist to make sure correct position correction is necessary.

Hydraulic fluid leaking from the cylinder

This is the most common failure. Simultaneously, the leak can be external. And we then see the fluid escaping from the jack, or are internal. In this case the fluid escapes outside the chamber.

This failure is sometimes difficult to spot in the event of an internal leak. Moreover, the leak can be due to two causes:

  1. wear of the rod causing a micro-scratch but large enough for the fluid to escape
  2. or wear of the seals no longer being tight enough to contain the fluid

Hydraulic rod seal Mechanical failure

It sometimes happens that the hydraulic rod seal suffers damage due to an external impact. This happens in particular on delicate sites in which the machines are exposed to projections or debris. This is a fairly uncommon cause but the cylinder can be much damaged in some cases.

We speak more of external material damage than a failure due to a malfunction of the cylinder itself. In these cases, the damaged part or the entire cylinder must be repaired if the damage is too severe.

hydraulic rod seal Suppliers

Hydraulic rod seal Age and deterioration

Sometimes the cylinder components are old and malfunction due to wear. This happens more often with hydraulic rod seals which then need to be replaced or repaired.

Call in hydraulic rod seal repair specialists

We note that most failures are natural in the sense that a jack that is used frequently must be checked regularly. It is to ensure that it is functioning correctly over time. Maintenance is important and it is therefore necessary to call on a specialist hydraulic rod seal manufacturer.

The repair of hydraulic cylinders can be broken down in several ways depending on the failure encountered and the type of cylinder. Therefore, a complete check of the cylinder is often preferred and consists of

  • a disassembly in order to check each component of the cylinder
  • the condition of the joints, and
  • the quality of the welds

How to choose oil seals

How to choose oil seal

The easiest way to make the right choice is to purchase original oil seals from an authorized dealer. In this case, the expert will choose a product that exactly matches the make and model of your car.

If you decide to buy a similar product, you need to consider several aspects of your choice:
The size of the product must be appropriate, and it is allowed (though not recommended) to use oil seals whose width is slightly smaller than the original oil seal.

The new oil seal must be designed to be used in the same environment as the old product (for example, antifreeze or engine oil).

The sealing device must be designed to operate within a temperature range suitable for its installation.

The simulation device must have a design corresponding to the original product (for example, the same notch on the sealing ring, etc.).

Special attention should be paid to the presence of anthers or threads. The first is designed to protect the parts from dust, and the second is used as a pump to pour out the oil.

In addition to technical characteristics, when choosing an oil seal, you also need to pay attention to cost and manufacturer, and give priority to choosing mature and popular brands and products with average market value. Otherwise, there is a high risk of entering low-quality products, which will not only quickly lead to failures, but also bring new troubles, which will bring huge financial costs.

Important note: It is strongly recommended not to use domestic oil seals on foreign cars, because the materials and processes of such products still have many shortcomings. However, on the contrary, it is recommended to install foreign-made oil seals on family cars.

Oil seal brand: which brand is preferred

  1. Butadiene rubber rubber (NBR) is a medium-cost material that can be used at temperatures from minus 40 to plus 120°C, and has good resistance to most types of fuels and lubricants.
  2. Acrylic rubber (ACM) is the cheapest material, suitable for use at temperatures ranging from minus 30 to 150 degrees Celsius, and is usually used to make wheel seals.
  3. Silicone (VMQ, MVG, ECOSIL) is a popular material with low cost but has many disadvantages, including chemical stability to certain types of mineral oil.
  4. Fluoroplastic/fluoroelastomer (FPM, FKM) is a widely used material for the manufacture of oil seals for power seals, such as camshafts, oil pumps, crankshafts, etc. The main advantages of this material include resistance to most types of oils and chemical liquids and excellent mechanical resistance. Its operating temperature range is minus 40 to plus 180°C.
  5. Teflon (PTFE) is a rapidly popularized material. Its high resistance to any chemically active liquid, the lowest friction rate and the largest operating temperature range (minus 40 to plus 220°C) promote the development of this material . Even though the oil seals of this material have the highest cost, they have the least wear on the rotating elements of the motor.

What is a car oil seals

What is a car oil seals

Modern cuffs made of rubber and metal cord are called oil seals. Since ancient times, the cuffs have used felt or felted lard fabric as the cuffs, so they are called oil seals. Today, ordinary cuffs and cuffs with reinforcing elements continue to narrow the gap between the movable and fixed parts of the mechanical device

Oil seals are used in automobiles to prevent engine oil, power steering, coolant and brake fluid from leaking to the outside. It can also prevent the contact of two different kinds of reagents, dust, dirt, and water particles from infiltrating the parts.

Generally, a reinforced cuff contains two elements, a metal ring inside the rubber and a steel spring inside the product. The metal ring increases the load-bearing capacity, and the spring presses the friction part of the rubber as much as possible on the element to be oil seals

If we compare the traditional rubber cuff with the reinforced rubber cuff, we can clearly see the difference between them. Ordinary cuffs have great elasticity, are easily deformed by fingers, are reinforced by metal rings, are strong and cannot be bent.

Reinforced rubber can withstand higher loads than conventional rubber.

There is a reinforced cuff with a so-called protective cover, which does not allow dirt and dust to enter the parts, so it is needed in automobile production.

The position of the stuffing box in the car:

Engine crankshaft-installed on the front and rear covers
Camshaft-installed on the shaft from the side of the gear attachment of the toothed belt drive;
Mechanical transmission or automatic transmission-located between the shaft and the body;
Solid pull pump-located on the shaft of the accessory drive belt drive pulley;
Air conditioning compressor-located on the front cover;
Pump (water pump)-located on the impeller shaft;
Rear axle reducer-from the handle on the cardan shaft side;
Hub-installed on the hub axle;
Inlet and outlet valve guides-installed on the valve guides;
The front brace and back brace-cuff are located on the top of the shock absorber.
Production material of stuffing box seal
The medium-priced stuffing box seal is made of nitrile rubber (NBR) and can withstand temperatures from -40°C to 120°C. Resistant to most types of liquids.

The cheap ones are made of acrylic synthetic rubber ACM. They can withstand temperatures from -30°C to 150°С.

Cheap oil seals are made of VMQ, MVG, ECOSIL silicone resin. In terms of chemical composition, they are unstable to certain mineral oils and industrial fluids, with exposure temperatures ranging from -25°C to 230°C.

Expensive materials are made of fluoroplastics-fluororubber FPM, FKM and other materials, which can withstand high temperatures from -40°C to 180°С. Resistant to most oils and chemical fluids, and withstand mechanical stress.

The most modern and expensive one is made of PTFE Teflon, which has the greatest resistance to chemical fluids. Keep the working temperature at -40°C to 220°C. The special nature of the Teflon gland and its frictional “working” part minimize the wear of the rotating part of the mechanical device.

However, over time, rubber products will wear out and need to be replaced. The replacement work is time-consuming, so when buying rubber products, you need to carefully study the technical characteristics. However, it is best to entrust the work to an experienced car service master and provide a proven spare parts library.


How rubber seals manufacturers can increase hydraulic seals performance?

Characteristics of hydraulic rubber seals

rubber seals manufacturers

The seals rotating dynamic rubber seals manufacturers are intended to rotating shafts of pumps and motors. The function of the rotating seals is to prevent the lubricant from leaking out of the system and contaminating the latter by external agents.

In the classic arrangement, the sealing ring is mounted in a fixed position in a special seat of the body. Similarly, the sliding movement takes place between the ring and the rotating shaft. The structure includes a profiled elastomer part, a metal support armature and a compression spring.

What are rubber seals?

Rubber seals manufacturers, as the name already suggests, are gaskets in rubber or in other materials such as polyurethane or elastomer. It finds a vast number of applications in the sector of hydraulic systems.

To clarify, they are generally those donut disks in rubber used for closing the taps in the home. But that you can also find in industrial machinery.  It works under pressure of fluids, in steam pipes, in city aqueducts and even mounted on the valve of the pots pressure.

Despite their small size and simplicity, hydraulic seals are fundamental components to ensure the correct operation of a certain type of closure.

How Hydraulic rubber Seals Work?

The rubber seals manufacturers have essentially one purpose, to guarantee the correct closing operation of a device. It has to do with the passage of liquids and with the pressure of fluids, such as water.

In fact, it is no coincidence that a tap needs to mount the gaskets to close properly. Here, to explain how the hydraulic seals work, we can take the taps as a perfect example. In fact, the presence of the seals prevents water from passing when the hydraulic mechanism is tightened.

In the absence of the seals, the fluids would still find a way to overcome the blockage. Moreover, it will cause losses and therefore waste of water and money.

Characteristics of hydraulic rubber seals

Given their simplicity, the characteristics of the hydraulic seals can be summarized by talking about the materials that make them up. And which must necessarily have precise properties, the rubber.


In fact, must never be rigid but flexible and malleable. Furthermore, it is precisely for this reason that rubber seals manufacturers use alternative materials such as elastomer.

This is due to the fact that these materials tend to expand and occupy the space otherwise invaded by water, preventing their escape.

But these are also delicate materials. This means that a lock must never be excessively tight or forced. Because the hydraulic seals would become crushed and would tend to deform. It will be unable to prevent the penetration of fluids into the closing mechanisms. That is why it is very important to buy rubber seals from professional rubber seals manufacturers.

Always referring to the example of the taps, the knobs must never be tightened with force. Finally, to underline the fact that the hydraulic seals tend to wear out or stiffen over time. Therefore they must be periodically replaced.

How do rubber seals manufacturers use hydraulic seals?

In the case of the simplest hydraulic devices, just install the rubber gaskets in the special housing, without doing anything else.

But in the case of more complex hydraulic systems, it is necessary to accompany the gasket with a thread. In this sense, the commonly used threads are made using the Teflon.

It should also be specified that rubber seals manufacturers should add sometimes green paste. It increases the performance of hydraulic.

rubber seals manufacturers in china

To have a perfectly functional and safe machine it is necessary to periodically perform a good maintenance of the vehicle in possession. In most cases of malfunction there is wear, even important, of the car seals.

The rubber seals are used to seal the passenger compartment. They isolate it from annoying external noises, unwanted air drafts. Above all, they are useful for avoiding the vibrations of the hood, the tailgate, the doors and the windows.

Let’s see the main causes of rubber seal failure ..

The rubber seals are the most commonly used sealing systems in many applications. They are very popular among rubber seals manufacturers. Serious damage can result from their incorrect operation. Let’s see the main causes of rubber seal failure …

Abrasion – phenomenon due to excessive friction caused by repetitive contact between the o-ring and the external surface in dynamic applications. Despite being a phenomenon mainly related to the relative movement between the elements, there can be losses in seal efficiency.

If the operating pressure is pulsating and with strong variations in the peak value. In this case the abrasion is caused by the small displacements to which the o-ring is subject. It is important for rubber seals manufacturers that there is good lubrication to ensure trouble-free operation of the rubber seals.

Compression set: the incorrect selection of the elastomeric material can lead to loss of elasticity of the rubber seals and loss of its sealing capacity.

Extrusion and erosion:   exposure to high pressures can cause the rubber seals into the vacuum created by the lack of material. It will cause damage ultimately.

A rapid pressure cycle can cause permanent damage to the o-ring. Because it is trapped between the cutting edges of the mating surfaces.

Chemical attack:   the rubber seals can become hard and crumbly if it comes into contact with some aggressive chemicals. It is therefore necessary for rubber seals manufacturers to choose the elastomeric material taking into account the substances and temperatures.

Errors during installation: o-rings installed in a twisted or too tight way and lubricated incorrectly are another cause of seal failure and failure.

Why rubber seals manufacturers?

The operation of pneumatic and hydraulic equipment depends on the quality of the rubber seals manufacturers. Rubber seals are often used for better traction. Their design is simple: a closed loop with a circular cross-section. The choice of goods depends on the specifics and sizes of the unit.

Properties and features of rubber seals

Rubber seals are made from various grades of rubber. Selected raw materials affect the properties of products. Resilience, elasticity provides a snug fit to the parts of the mechanism, which ensures sealing of the connection.


Application area

The industry produces two types of o-rings. Products differ from each other in profile configuration and can be with a rectangular or circular cross-section. The latter are more in demand due to the fact that they are more universal.