
HY7220 Glycol Ring
Consists of a rectangular cross-section slider made of high-wear PTFE or engineering plastic, combined with an elastomeric O-ring.
Technical Specifications
Working pressure: ≤63 MPa
Operating temperature: -50 to 200 °C (depends on rubber material; fluororubber can reach up to 200 °C)
Motion speed: ≤15 m/s
Media Compatibility: Hydraulic oil, water, ethylene glycol, air, etc. (specifically determined by O-ring material).
Applications: Widely used for piston seals (bidirectional sealing) in construction machinery, injection molding machines, metallurgical equipment, marine vessels, and industrial hydraulic systems. Ideal for high-pressure, high-frequency, long-stroke applications requiring low friction and no stick-slip in precision hydraulic cylinders.