PS81

Function
Piston seals are designed to seal the pressurized hydraulic fluid against the atmosphere or
between two pressurized spaces.
Features

• Symmetrical, double acting piston seal, designed with interference of the preload

• High pressure force because of a machined rubber preload element.
• Less relative movement of the rubber part compared to an O-Ring giving the seal

• Excellent sealing performance in low and high speeds.
• Suitable for positioning functions.
• Negligible tendency to “stick-slip” effect, good sliding properties.
• Low break-away load after long standstills.
• Excellent gap extrusion resistance.
• Can be used in grooves where no O-Ring is possible.