Technical Specifications

Working Pressure: ≤40 MPa (dynamic)

Operating Temperature: -30 to 120 °C (NBR); -20 to 200 °C (FKM)

Operating speed: ≤0.5 m/s (reciprocating), ≤2 m/s (rotational, requires special design)

Medium suitability: pH 3～12

Key Features: A single-lip Y-shaped elastic sealing ring, typically made of NBR, PU, or FKM. It seals by automatically expanding and pressing against the mating surface under medium pressure. Benefits include a simple structure, easy installation, low friction resistance, excellent follow-up capability, and strong resistance to misalignment wear. Seals via pre-compression at low pressures and via self-energizing action from medium pressure at high pressures.

Application Areas: Widely used for piston and rod seals in hydraulic and pneumatic cylinders. Commonly found in construction machinery, agricultural equipment, general industrial machinery, automotive braking systems, and injection molding machines.