As system pressure in a hydraulic cylinder pushes the piston down the cylinder bore, piston seals and piston rings ensure that pressurized fluid does not leak across the cylinder head. Piston seals are decided by the way the cylinders operate. For a cylinder that is exclusively capable of sealing dynamic pressure from both sides(bidirectional), it is best to choose the type of seal designed for double-acting functions.

Piston seals can be designed for, and used with, integrated, or separate, back-up rings and guide rings. Seal & Design is proud to carry a wide range of Hallite piston seals that provide the ultimate leakage control.