o ring is a double acting seals for static and dynamic application. o ring seals work as a effective and economic sealing unit.

The initial compression of the radial or axial direction during installation, which gives the initial sealing ability of the O ring itself. The seal force produced by the system pressure and the total sealing force of the initial sealing force, which increase with the increase of pressure, o ring shows an excellent performance at the dynamic sealing application. However, at the dynamic appropriate occasion, o ring is also widely use, but it has the limit by speed and pressure of sealing surface.

　　Technical Data:

　　Dynamic Pressure Reciprocating movement: max 5Mpa without back up ring.

　　With back up ring, pressure is higher.

　　Max Compression Amount Static Sealing: 20% of o ring diameter.

　　Max Compression Amount Dynamic sealing: 30% of o ring diameter.

　　Pressure:Static condition, speed: Max reciprocating speed can reach 0.5m/s

　　Without back up ring, max Pressure: 20Mpa,Max rotary speed:0.2m/s.

　　With back up ring, max pressure:40Mpa

　　With special back up ring, max pressure:200Mpa

For more info about hydraulic seal, just click http://www.othchina.com,  we will reply you ASAP.