PH521 is a five piece double acting compact seal which consists of one elastomeric nitrile rubber sealing element, two polyester elastomer back-up rings on both sides to prevent extrusion into the sealing gap and two special profiled guide rings produced from thermoplastic to absorb transverse forces.
- Superior radial load bearing capacity
- Economic sealing and guiding solution
- Simple groove design, one-piece piston possible
- Long service life
- Simple snap installation
Mobile hydraulics, back-hoe loaders, fork-lift trucks, agricultural machinery, standard cylinders.
- Diameter:25 mm to 300 mm
- Temperature:-30 ° C to 105 ° C
- Pressure limit:400 bar
- Speed limit:0.5 m/s