ZW

ZW Piston Seal

Descriptions

The profile ZW double-acting piston sealing set consists of an elastomer sealing component, two anti-extrusion and two angular guide rings.

Features

• Good wear resistance.
• Assembly on one-part piston is possible.
• Installation in closed and undercut
housings.

Range of application
Sealing set for double-acting pistons in presses, drive cylinders, back-up and operating cylinders for industrial and mobile hydraulics.

Operating pressure ≤ 400 bar
Operating temperature -35 °C to +100 °C
in HFA, HFB and HFC fluids +60 °C
Sliding speed ≤ 0.5 m/s

Compounds
Rubber component: Highly wear-resistant NBR-compound NB078 with a hardness
of 80 Shore A.
Anti-extrusion rings: High-strength, wear-optimized polyester elastomer (W5035).
Angular guide rings: Thermoplast for high pressure resistance even with increased
temperatures (W5301).
Installation
Sharp edges and burrs in the assembly area of the seal must be removed. Assembly is
performed in the following sequence: „rubber seal, anti-extrusion rings, angular guide
rings“. Ensure that the contact points (gaps) of the angular guide and anti-extrusion
rings are arranged in staggering positions.

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