The robust and compact shape of this double-acting piston seal guarantees excellent sealing qualities even at low pressures thanks to the central rubber element which, supported by the two extrusion rings and the guide rings, allows use in medium-heavy operating conditions, with excellent wear resistance.

Particularly suitable for assembly in a closed slot. The rubber element has a series of lips on the outside which guarantee the seal at low pressure and stabilize the seal during operation: the two anti-extrusion rings in special thermo elastomer material guarantee strong resistance to extrusion and the two guide rings in thermoplastic material

they guarantee strong resistance to extrusion and the two guide rings in thermoplastic material with an "L" section keep the seal aligned even in the presence of radial loads.

Both the anti-extrusion rings and the “L” guides are designed with pressure relief channels that prevent any seal seizure or pressure retention conditions within the package.