Cryogenic O-rings (Spring-Energized) | Plastik Solutions

Overview

Cryogenic and high-temperature service o-ring with a 302 stainless steel canted-coil spring core encapsulated in FEP or PFA. The metal spring provides the radial force needed to maintain seal contact across extreme temperature ranges where elastomers harden and fail. Choice of FEP (to +205 °C) or PFA (to +260 °C) jacket.

Specifications

Core material	302 stainless steel spring
Jacket / encapsulant	FEP or PFA encapsulation
Service temperature	−200 to +260 °C
Hardness	—
Standard sizes	Metric and imperial (AS568) on request — bespoke sizes available

Typical Applications

Liquid nitrogen, oxygen, hydrogen and LNG service
Cryogenic valves, pumps and storage vessel seals
Aerospace and space industry sealing
Wide-temperature-range applications where elastomers fail
Vacuum chamber seals at extreme temperatures

All O-ring Materials

Browse other o-ring materials in our range.

FEP / Silicone Encapsulated O-rings

−60 to +205 °C · Silicone elastomer

FEP / Viton Encapsulated O-rings

−20 to +205 °C · FKM (Viton) fluoroelastomer

PFA / Silicone Encapsulated O-rings

−60 to +260 °C · Silicone elastomer

PFA / Viton Encapsulated O-rings

−20 to +260 °C · FKM (Viton) fluoroelastomer

PTFE O-rings (Solid)

−200 to +260 °C · Solid PTFE (no core)

Nitrile (NBR) O-rings

−30 to +100 °C · NBR (acrylonitrile-butadiene)

FKM (Viton) O-rings

−20 to +200 °C · FKM (fluoroelastomer)

EPDM O-rings

−40 to +150 °C · EPDM (ethylene-propylene-diene)

Red Silicone O-rings

−60 to +200 °C · VMQ (silicone)

HNBR O-rings

−40 to +150 °C · HNBR (hydrogenated nitrile)

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