APR piston seals

APR seals are double-acting piston seals (fig. 2) and have a nitrile rubber (NBR) O-ring energizer. The PTFE slide ring incorporates an NBR X-ring to improve sealing performance. They are suitable for pressures up to 350 bar (5 075 psi) in medium to heavy duty applications. APR profiles are available in metric and inch sizes and some metric sizes fit seal housings in accordance with ISO 7425-1:1988. For additional information, refer to APR profile data below.