DSH-Pneumatic Piston Seal | Dsd-custom Step Seal Piston Ring-7
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DSD-Custom Step Seal Piston Ring

DSD-Custom Step Seal Piston Ring

Type
DSD
Delivery Time
3-7 days
Quality
High-quality
Service
Standard product/Customized product
Brand
DSH
Price
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The common compact seal SPGW is made of a sealing ring, an O-ring and back up ring. Sealing ring material is generally filled with PTFE; the O-ring is made of nitrile rubber (NBR). ) or fluororubber (FKM); the back up ring is made of polyoxymethylene (POM) material. The combined seal SPGW has good dynamic and static sealing performance, low friction coefficient, no creeping at startup, and more importantly, stable operation.

SPGW is a high performance double acting compact piston seal consisting of a dynamic bronze filled PTFE friction ring, a profiled preloaded NBR ring and two POM back up rings. It has excellent resistance to leakage, extrusion and friction. SPGW compact seal is especially suitable for long-distance travel. When used in a variety of fluids and high temperatures, it is suitable for wider piston spacing. By stacking, the SPGW compact seals form a compact structure and excellent performance, mounted in a single piston groove. Its geometry gives it overall stability, wear resistance, tightness, low friction and long life without maintenance. Due to the initial shrinkage range set, the seal has good sealing properties at low pressure. When the pressure is raised, the sealing performance remains good because the elastomer exerts a stress on the combined seal ring, thereby converting the axial force from system pressure to radial compression. Suitable for overloaded nylon shielding rings. Designed to protect seals from crushing damage, it meets the requirements of a wide range of hydraulic cylinders.


Characteristics


  • High extrusion resistance.

  • High static and dynamic sealing effect.

  • Excellent dimensional stability, not affected by temperature.

  • Excellent cushion performance to high stamping force.

  • No confining pressure, can be installed in series.

  • Low friction, no stick-slip behavior, no viscosity.

  • Simple groove design.

  • Strong in corrosion resistance.

  • Long service life.


◆◆ PTFE+NBR/FKM


Material descriptionPTFE filled Bronze, PTFE filled carbon fiber and MoS2, PTFE filled Graphite, PTFE filled PI, PTFE filled Ekonol, PU and so on.
Available ColorBlack, green, coffee, white, red, blue, gold and so on
Material StrengthHigh precision, excellent wear resistance, good self-lubricating performance, environmental protection.
temperature-45~+200℃
speed≤15m/s
pressure≤60MPa
mediumMineral oil based hydraulic fluids,barely flammable hydraulic fluids,water,air and others.
Applied deviceStandard cylinders / Ceramic machine / Machine tools / Mobile hydraulics / Presses, etc.


DSH-Pneumatic Piston Seal | Dsd-custom Step Seal Piston Ring
DSH-Pneumatic Piston Seal | Dsd-custom Step Seal Piston Ring-1
DSH-Pneumatic Piston Seal | Dsd-custom Step Seal Piston Ring-2


◆◆ Slide Ring for Piston - DSD


DSH-Pneumatic Piston Seal | Dsd-custom Step Seal Piston Ring-3

Technical Data

PressureTemperatureSliding speedMedium
Standard≤60 MPa-45…+200 ℃≤15 m/sineral oil based hydraulic fluids,barely flammable hydraulic fluids, water,air  and others.
Material

 O ringslide ring
StandardNBRPTFE-Bronze
Special (on request)FKMPTFE-Carbon
Pressure160bar250bar400bar
Max Gap EE≤0.6mmE≤0.4mmE≤0.2mm
Order Example for standard version:
Diameter D=100mm   
Order Code: DSD 100*84.9*6.3
Installation Dimension table based on Metric Size(mm)
D H9d h9L +0.2d1C≥R1≤
8~24D-4.92.21.820.4
15~48D-7.33.22.6520.4
25~110D-10.74.23.5530.8
50~140D-15.16.35.351.2
125~320D-20.58.177.51.6
330~660D-248.1781.6
670~990D-27.39.58.481.6
1000~1500D-3813.8128.52
Order NumberD H9d h9L  +0.2
Order NumberD H9d h9L  +0.2
DSD009094.12.2DSD06506549.96.3
DSD0100105.12.2DSD0700L7059.34.2
DSD0120127.12.2DSD07007054.96.3
DSD0140149.12.2DSD07507559.96.3
DSD01501510.12.2DSD08008064.96.3
DSD01601611.12.2DSD0800H8059.58.1
DSD01801810.73.2DSD08508569.96.3
DSD0200L2015.12.2DSD0850H8564.58.1
DSD02002012.73.2DSD09009074.96.3
DSD02202214.73.2DSD0900H9069.58.1
DSD02502517.73.2DSD09509579.96.3
DSD0250H2514.34.2DSD0950H9574.58.1
DSD02802817.34.2DSD100010084.96.3
DSD0300L3022.73.2DSD1000H10079.58.1
DSD03003019.34.2DSD105010589.96.3
DSD0320L3224.73.2DSD1050H10584.58.1
DSD03203221.34.2DSD106010690.96.3
DSD03503524.34.2DSD110011094.96.3
DSD0400L4032.73.2DSD1100H11089.58.1
DSD04004029.34.2DSD115011599.96.3
DSD04204231.34.2DSD1150H11594.58.1
DSD04504534.34.2DSD1200120104.96.3
DSD04804837.34.2DSD1200H12099.58.1
DSD05005039.34.2DSD1250125109.96.3
DSD0500H5034.96.3DSD1250H125104.58.1
DSD05205241.34.2DSD1300130114.96.3
DSD05505544.34.2DSD1350135119.96.3
DSD06006044.96.3DSD1350H135114.58.1
DSD0630L6352.34.2DSD1400140124.96.3
DSD06306347.96.3DSD1400H140119.58.1

Order NumberD H9d h9L  +0.2
Order NumberD H9d h9L  +0.2
DSD1450145129.96.3DSD30003002768.1
DSD1450H145124.58.1DSD3060L306285.58.1
DSD1500150134.96.3DSD31003102868.1
DSD1500H150129.58.1DSD3200L320299.58.1
DSD1550155139.96.3DSD32003202968.1
DSD1600160144.96.3DSD33003303068.1
DSD1600H160139.58.1DSD34003403168.1
DSD1650165149.96.3DSD35003503268.1
DSD1650H165144.58.1DSD36003603368.1
DSD1700H170149.58.1DSD38003803568.1
DSD1750175159.96.3DSD40004003768.1
DSD1800180164.96.3DSD42004203968.1
DSD1800H180159.58.1DSD45004504268.1
DSD1850185169.96.3DSD48004804568.1
DSD1900190174.96.3DSD50005004768.1
DSD1900H190169.58.1DSD5200L520499.58.1
DSD2000L200184.96.3DSD54005405168.1
DSD2000200179.58.1DSD60006005768.1
DSD2100210189.58.1DSD65006506268.1
DSD2200L220204.96.3DSD7000700672.79.5
DSD2200220199.58.1DSD8000800772.79.5
DSD2300230209.58.1DSD8600860832.79.5
DSD2400240219.58.1DSD9000900872.79.5
DSD2500250229.58.1DSD10000L1000972.79.5
DSD2500H2502268.1DSD10000100096213.8
DSD26002602368.1DSD12000L12001172.79.5
DSD28002802568.1DSD120001200116213.8
DSD29002902668.1



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DSH-Pneumatic Piston Seal | Dsd-custom Step Seal Piston Ring-11