Soon Seng PolySeal - oil seals, hydraulic seals, pneumatic seals, mechanical seals
Sonn Seng Poly Seal

Piston Seal

A piston seal is designed specially to be seated in the piston gland. The external diameter of the seal presses and moves against a cylinder bore to seal while the internal diameter of the seal will press against the piston gland to seal.

Examples of piston seals are u-cup with non-symmetrical profile, Tee-seal, and double-acting seal. For Tee-seal, the cross-section resembles a "T" and it can be used as a substitute for O-ring in reciprocating or static applications. A double-acting seal consists of a high performance elastomer sealing element, and two split hard polymer wear rings. The seal is designed to be fitted in a piston gland.

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