subject: Parker O-Rings: Best Sealing Solutions [print this page] When the fluid is in a reciprocating manner, Hydraulic Seals is used in assemblies to fulfill sealing needs. There are different types available in Hydraulic Seals and you can choose your type among a list of varieties. For Hydraulic cylinders, Piston Seals are used as they offer the exact kind of sealing required for the same.
