NPRS is a rotary lip seal that feaatures an ID lip that seals dynamically on a shaft and an elastomeric O-ring on its OD to seal statically in a bore. Since the lip is not spring energized, the radial lip contact forces are lower, which allows the seal to function at much higher surface speeds(up to 5000s sfpm).

The seals are manufactured form a wide variety of PTFE composites and other machinable plastic materials.Standard O-ring choices are fluorocarbon, silicone, nitrile and EPDM. This broad foundation of sstandard Oring and PTFE materials can be tailored to suit nearly all applications. Standard and Non-standard profiles are precision machined to fit inch-fractional and metric gland geometries. The design id extremely versatile because the seal is machined from a molded PTFE sleeve.QuanSeal NPRS are used in demanding applications where the operationg conditions exceed the capabilties of elastomeric seals.