PU seals, polyurethane seals, they are commonly used in hydraulic and pneumatic systems due to their excellent durability, wear resistance and sealing efficiency. Polyurethane is a high tensile strength elastomer with effective resistance to abrasion, extrusion, and tearing, making it perfect for applications that require extreme performance.
4 Types of PU Seals
PU Rod Seals
Typically used to seal against the external leakage of hydraulic or pneumatic cylinders at the rod interface.
01
PU Piston Seals
They are installed on the piston to serve internal-sealing elements, preventing leakage on both sides of the piston.
02
PU Wiper Seals
The seals essentially keep dirt, dust, and moisture from making their way into the cylinder, thereby protecting the system.
03
PU Wear Rings
Also called guide rings, they are designed to guide the piston and rod while preventing metal from metal contact inside of the cylinder.
04
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