Field of application:

Working pressure: ≤ 500 bar
Working temperature: HFA-, HFB and HFC-fluids: + 5 to + 60 °C Mineral oil: -20 to + 100 °C

Surface speed: ≤ 0,1 m/s

Mainly used for double-acting pistons in cylinders for hydraulic roof supports and for tunneling machines.

Installation:

The sealing sets of the Parker Prädifa series ZP 00250 are for use on one-piece pistons. The Sealing sets of the series ZP 00254 require an open housing (divided piston). To avoid damaging care should be taken that the seals are not pulled over sharp edges during installation.

Compounds:

Standard compound for the Parker Praedifa sealing based elastomer (Z5017) with the dynamic surface (SFR5-compound). The back-up rings are made of a polyacetal-based material
(W5001).

For special requirements (pressure, temperature, speed, etc.) please contact our Consultancy Service, so that suitable materials and/or
designs can be recommended.