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The T-seal comes in both piston (TPO) and rod (TRO) styles. This double acting seal design can be accommodated by a standard O-ring groove. The design helps prevent extrusion and spiraling up to 5,000 PSI. Hi-Tech Seals also offers a locking T-seal profile, which aids in the installation process.

Standard T-seals are composed of a Nitrile sealing element and two split Nylon Back-up rings. A popular combination for added chemical resistance is our Viton™ and PEEK T-seal. If you require assistance choosing the correct T-seal to replace an O-ring and a Back-up combination, please consult a Hi-Tech Seals’ Technical Sales Representative.

Product Profiles



Piston (TPO) Rod (TRO)
Imperial Imperial