USH Dual-Purpose Seal – Versatile Reversible U-Ring Seal for Piston and Rod Applications.
USH dual-purpose reversible U-ring seal for piston and rod applications. Bidirectional sealing, low friction, compact design. PU, –35°C~100°C, ≤25 MPa, ≤3 m/s.
USH Dual-Purpose Seal – A versatile piston and rod seal designed for flexible installation in both piston and rod applications. This reversible hydraulic seal features an asymmetric U-ring lip profile that enables internal sealing for pistons and external sealing for rods — all in one compact design. The pressure-energized lips deliver reliable bidirectional sealing in both mounting orientations with minimal leakage, while the optimized lip geometry provides low friction, reduced wear, and consistent performance across pressure fluctuations. The compact cross-section simplifies groove design, fits standard profiles, and reduces inventory requirements, making this dual-purpose sealing solution ideal for light to medium-duty hydraulic cylinders, pneumatic systems, and maintenance/repair applications where flexibility and efficiency are priorities. Material: high-quality polyurethane. Temp: –35°C to +100°C. Pressure: up to 25 MPa. Speed: up to 3 m/s.
Dual-purpose seal for both piston and rod applications — one seal, two uses
Reversible installation — internal sealing for pistons, external for rods
Asymmetric U-ring lip design delivers reliable bidirectional sealing
Pressure-energized lips provide consistent sealing in both mounting orientations
Low-friction compound reduces wear and extends service life
Compact cross-section simplifies groove design and reduces inventory
Light to medium-pressure capability up to 25 MPa; speed up to 3 m/s
Ideal for light to medium-duty hydraulic cylinders, pneumatic systems, and maintenance/repair applications.
USH Dual-Purpose Seal – Versatile reversible U-ring seal for piston and rod applications. One seal, two mounting options — internal for pistons, external for rods. Reliable bidirectional sealing, low friction, compact design. PU, –35°C~100°C, ≤25 MPa, ≤3 m/s.
Original text from: Hydraulic and Pneumatic Seals https://www.bszzseal.com/
