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PUN - Customized U-Cup, U-Shaped PU Piston Seal With Retainer Ring and O-Ring

The PUN is a popular non-symmetrical piston seal.The knife trimmed, beveled lip contacts the bore to provide enhanced low to high pressure sealing and wiping action, providing excellent wear, extrusion and compression set resistance. With Retainer Ring, providing a better performance of high pressure extrusion resistance, and the O-ring provide a better tension for sealing performance.
  • PUN
  • GFS

U-Cup seal O-ringU-Shaped seal O-RingPU UN Seal

Materials Operating Condition
Temperature C Pressure Range MPA Speed m/s
PU -30~110 70 0.5

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About us
GFS is one of the top hydraulic sealing solution companies in China. Focusing on hydraulic cylinder, rotary,  oil & gas equipment seals from R&D to manufacture, providing  Cost-effective & high-quality products.
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