Pacific Seals Information

Double acting cylinders are the most widely used cylinder types. They operate via pressure acting on both sides of the piston, and therefore require double-acting seal arrangements. Double acting piston seals have a symmetrical profile and identical sealing functions in both directions. Typically, double-acting piston seals consist of a sealing ring and an energizer. The deformation of the elastomeric energizer when installed provides adequate force to keep the sealing ring in dynamic sealing contact with the cylinder bore, while itself sealing statically against the seal housing groove.