Polyurethane seals are a type of sealing component widely used in hydraulic and pneumatic systems. PU seals are commonly applied as backup rings, gaskets, or hydraulic seals in hydraulic cylinders, valves, pumps, and other mechanical equipment to effectively prevent leakage of oil, gas, or liquids while withstanding high pressure and harsh operating environments.
 |  |
| Hydraulic seals | Polyurethane seals |