A Hydraulic Seal is a relatively soft, non-metallic closed chain captured in a channel or fixed in a combination of rings, forming a seal assembly, to block or separate fluid in reciprocating motion applications. Hydraulic seals are vital in machinery. Their use is critical in providing a way for awkward power to be converted to elongate motion.

Hydraulic Seals supplier can be made from a mixture of materials such as polyurethane, rubber or PTFE. The type of material is determined by the particular, operating conditions or limits due to fluid type, imperativeness, fluid chemical compatibility or temperature.

A static Hydraulic Seal is located in a channel and sees no movement - only sealing within its confined infinite, acting like a gasket. Example:cap seals,flange gasket.

A type of dynamic hydraulic seal called a rod closed chain is exposed to movement on its inner diameter along the shaft or rod of a hydraulic cylinder. A type of dynamic Hydraulic Seal called a piston seal is exposed to movement on its outer diameter along the tube or bore of a hydraulic cylinder.