HELICAL SPRING ENERGIZED PISTON SEAL
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HELICAL SPRING ENERGIZED PISTON SEAL

Helical Spring Seals are comprised of a wound ribbon metal spring installed in a polymer jacket. This helical shape spring affords a relatively high load versus deflection range resulting in a seal product that can provide very tight sealing. As a highly loaded product, Helical Spring Seals should be considered when dynamics are very slow or static. Examples are in stems seals and in cryogenic valves where additional force is required to overcome thermal effects.

STANDARD SEAL MATERIALS

Description

Color

Applications

Virgin PTFE

White

Light Duty / Static / Cryogenics

Carbon filled PTFE

Black

General Purpose

Virgin UHMWPE

Translucent White

Viscous Media / Water

Polyimide filled PTFE

Orange/Brown

High Sealabilty / Soft Hardware

 

 

STANDARD SPRING MATERIALS

 

Spring Material

Application

300 Series Stainless Steel

General purpose, standard spring material

Elgiloy

Improved performance and corrosion resistance

Hastelloy C276

Maximum chemical/corrosion resistance

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