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The Capped T-seal (CTS) is a double-acting, high pressure, high performance piston seal, which is designed to accommodate large extrusion gaps. The major benefits of this design are its excellent extrusion resistance, low friction and low wear, all presented in a compact and stable design.


1. With the inter-locking design you benefit from:

  • A reduced chance of installing the Back-up rings incorrectly
  • The Back-up rings lock into the T-seal element when assembled in the seal gland
2. Chamfered Back-up ring - Reduces the possibility that the Back-up ring can be sheared
    off in a port or retaining ring groove during assembly.

If you’re having an installation issue with your capped T-seal, contact Hi-Tech Seals and ask
about the locking capped T-seal design.

Product Profiles
Capped T-SealCaterpillar Four Piece
Imperial | MetricImperial