Static PU seals

Static PU seals

Static PU seals are sealing components specifically designed to function as durable alternatives to O-rings in heavy-duty environments. They are used to prevent damage and extrusion that often occur in large gaps and under high pressure. These seals are made of polyurethane (PU), a material known for its excellent mechanical properties, such as high wear resistance, strength and pressure resistance. This makes static PU seals suitable for demanding environments where traditional seals may not be effective.

How do they work?

Static PU seals function by creating an effective seal between two flat surfaces, preventing liquids or gases from escaping. Due to their shape, strength and pressure resistance, they can handle higher pressure levels and large gaps without being damaged or extruded, which is typically problematic for standard O-rings in such conditions. They are used in situations where a reliable seal is required under extreme pressure, such as in hydraulic systems, heavy machinery, hydraulic cylinders, pneumatic systems and other applications where seals are exposed to intense loads and high pressure conditions. The use of static PU seals is often justified when traditional O-rings do not meet performance requirements due to gap size, high pressure or harsh environmental conditions. They provide durable and reliable seals in tough industrial applications where consistency and resistance to pressure and damage are vital to the overall operation of the system.

Versions inside sealing:

• ST-10

• ST-12

• ST-14

• ST-16

Versions outside sealing:

• ST-11

• ST-13

• ST-15

• ST-17

• ST-19