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HY7220 Gland Ring

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.