Quad® P.E. Plus Plastic Exclusion Seals | Zatkoff

The Quad® P.E. Plus is a patented seal design that combines an injection-molded thermoplastic bearing material with a Quad-Ring® seal, O-Ring, or custom seal to form a self-lubricating seal for both rotary and reciprocating seal applications. This seal can be used in applications where some leakage is permissible.

A tab on the thermoplastic ring locks it into the housing or shaft to prevent independent movement of the seal assembly. The ring is split to allow for thermal expansion of the shaft or cylinder.

Materials used for the custom-molded Quad® P.E. Plus seal can be specified from a wide range of rubber compounds and high performance thermoplastics.

The characteristically high pressure-velocity values and low coefficients of friction of thermoplastic bearing materials make them ideal for high velocity applications. These thermoplastics are also self-lubricating, which means that a Quad® P.E. Plus seal can be used in continuous applications without external lubrication, a condition that would cause other seals to either burn up quickly, or destroy the surface of the cylinder or shaft it was meant to protect. Versions of the Quad® P.E. Plus seal can be designed to operate in:

• Non-lubricated rotary applications with up to 1200 fpm (457.2 M/min) surface speeds
• Pressure lubricated rotary applications with up to 6500 fpm (1981.2 M/min) surface speeds
• Continuous temperature up to +450°F (+232°C)
• Non-lubricated reciprocating applications with an operating life of more than 75 million cycles.