PHD / CST Seal
A heavy duty compact double-acting piston seal, the POLYPAC® PHD/CST Seal is an elastomer energized PTFE assembly. It gives stability, wear resistance, sealability, low friction and a maintenance-free long life. HiMod® Back-up Rings are specially designed to protect the seal ring from extrusion, even in the most demanding applications. Available in metric and inch sizes.