We are offering piston seals - d-seal. the piston sealing set consists of a ptfe piston sealing ring and an o-ring. They are combined as a single unit and are appropriate for single-acting pistons in hydraulic cylinders. these seals are particularly suitable for control cylinders, in servo controlled systems, machine tools and in construction machinery. An optimal sealing performance will be obtained if the piston sealing set is used in tandem.