PTFE oil seals | DSH Seals

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DSH’s advanced PTFE oil seal are renowned for their ability to provide optimum performance in extreme temperature and fluid environments. With low frictional resistance, it eliminates stick-slip and ensures high wear resistance. It is a standard combination seal that can be used in a variety of operations.

Other benefits of this seal include reduced friction, longer working life, easier assembly, reduced weight and simplified design.

The seal is designed to withstand the harsh environments, high temperatures, high pressures and dry runs that conventional seals cannot withstand. Many of our PTFE compounds have been approved by the FDA. The main advantages of PTFE seals are its high chemical resistance, wear resistance and drought-resistant running.

The seal is made of 100% pure PTFE yarn and has a great self-lubricating content and excellent heat dissipation. It has a low coefficient of friction, ensuring smooth operation and performance of any valve. The oil seal does not require an external lubricant or any oil. It is suitable for all kinds of machine components.

DSH design the PTFE oil seal that can withstand very high speed and can bear large pressure. It also offers a wide operating temperature range and is highly corrosion-resistant.

A type – PTFE Single Lip Oil Seals

The A type is a rotary lip seal that features an ID lip that seals dynamically on a shaft and an elastomeric O-ring on its OD to seal statically in a bore. Since the lip is not spring energized, the radial lip contact forces are lower than a rotary metal lip seal, which allows […]

B type – PTFE Oil Seals With Good Performance

Double-lip, PTFE, rotary, shaft seal. The redundant seal lips enable this seal to handle higher pressure and create additional sealing capabilities, especially under flooded conditions. The soft OD eliminates damage to housings manufactured from expensive metals, and the integrated O-ring on the OD of the seal serves as an anti-rotation device and maximizes static […]

H type – PTFE H Type Oil Seals Spring Energized Seal

When considering a rotary service seal and additional gland length is available, an O-Ring Heel Seal provides a level of anti-rotation and redundant sealing. The addition of an O-Ring on the heel of a radial seal creates a high friction interface at the bore to counteract rotary forces. With proper hardware design, a high level […]

I type – PTFE Rotary Shaft Oil Seals

For this configuration, anti-rotation is achieved by using an O-Ring to create a frictional interface between the seal and bore. Although a metal cased lip seal has higher pressure and speed rating, an O-Ring OD lip seal is a good choice economically when application parameters permit. Lower use applications such as food processing equipment, pharmaceutical […]

J type – Low Pressure Resistant PTFE Oil Seal

For this configuration, anti-rotation is achieved by using an O-Ring to create a frictional interface between the seal and bore. Although a metal cased lip seal has higher pressure and speed rating, an O-Ring OD lip seal is a good choice economically when application parameters permit. Lower use applications such as food processing equipment, pharmaceutical […]

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