U-UMPneumatic Rod and Piston Seals

Double lip symmetrical profile rod and piston seal for single-acting applications. It guarantees an excellent seal-ability in case of low pressures or particularly difficult conditions such as small misalignments or radial loads. Standard material: Nitrile rubber.

Seal capabilities

  • Temperature: from -40 to 120 °C
  • Max. pressure: 120 bar
  • Max. speed: 0,2 m/s


reciprocating rotating helical static

This product is interchangeable with:
U - K21 NBR - KN 21 - SN 21 - UM - DUM

Description Ø d Ø D L

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