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U‑ring seals

Our family of rubber U‑ring seals, suitable for both rod and single‑acting piston applications.

TYPICAL APPLICATIONS
  • Rod/gland seals
  • Single-acting pistons

We supply a variety of different designs and in various materials including:

  • Solid moulded rubber construction: chamfered lip types, square base type, and round base types
  • Rubber-proofed fabric construction: square base types and round base types

Available in square or round base profile with moulded flared lips, and with a square base profile with post moulded chamfered lips.

Rubber U-rings - suitable for stretch fitting

  • Maximum operating pressure: 10 MPa (1450 psi)
  • Temperature range: -20°C to +120°C (-4°F to +248°F)
  • Maximum surface speed: 0.5 m/s (98.4 fpm)

Fabric U-rings - for more arduous duties

  • Maximum operating pressure: 34 MPa (4931 psi)
  • Temperature range: -20°C to +120°C (-4°F to +248°F)
  • Maximum surface speed: 0.5 m/s (98.4 fpm)

Rubber U-rings - suitable for stretch fitting

  • Manufactured as standard in 80 IRHD nitrile (NBR) rubber. Other elastomer grades and hardnesses are available.

Fabric U-rings - for more arduous duties

  • Manufactured as standard in nitrile (NBR) rubber-proofed cotton fabric. Other materials are available.

Square-based or round-based profiles, in a range of materials.

Related Downloads

U-ring fitting guide

English pdf (231 KB) Download

U-ring seals datasheet

English pdf (148 KB) Download

Expert to Expert

Want to discuss your project, engineering or materials challenge expert to expert? Simply provide us with your contact details and a little information about the application you are working on, and one of our experts will contact you as soon as possible.

Contact us