Rotary Shaft Seal

Product Introduction
This hydraulic piston seal  is a very effective and reliable low frictional seal. It is particularly suitable as a piston seal in both high and low pressure systems. It comprises a PTFE ring, strengthened with additives to resist creep, which is pre-loaded by an O ring to be effective for the operating pressure range recommended. As the pressure rises the O ring deforms and compresses the PTFE ring against the tube wall increasing the sealing force and the effectiveness of the seal. As only the PTFE ring is in contact with the sliding surface, friction is very low and stick-slip movement is eliminated. The geometry of the Glyd Ring ensures a good static sealing and allows the lubricating hydrodynamic oil film to be build under the seal in reciprocating applications.

Application Range
Pressure [MPa] 60
Temperature [° C] -45...+200
Sliding speed[m/s] 15
Medium: Mineral oil based hydraulic fluids, barely flammable hydraulic fluids, water, air and others.

Material
 O ring NBR / FKM (Special on request)  
Slide ring: PTFE-Bronze / PTFE-carbon
(Special on request)

Application    
Mobile hydraulics    
Standard cylinders    
Machine tools    
Injection moulding machines    
Presses