Double Acting Piston Seals

This seal comprises an elastomeric sealing element, two anti-extrusion rings and two rigid thermoplastic wear/guide rings.

The elastomeric sealing element has an interference fit with the housing, to ensure sealing integrity, even at low pressures. The anti-extrusion rings prevent extrusion of the sealing element at higher pressures, whereas the wear/guide rings act as bearings to align the piston within the cylinder bore.