Products
H Spring Series
Cryogenic H Spring Energized Seal
Designed with a precision H-shaped metal spring energizer and a low-temperature resistant polymer jacket, this seal ensures reliable sealing performance under extreme cryogenic conditions.
It is widely used in LNG systems, liquid nitrogen (LN₂), liquid oxygen (LOX), liquid hydrogen (LH₂), and other cryogenic media applications where conventional elastomer seals fail due to hardening, shrinkage, and leakage.
Compared to standard O-rings or rubber seals, the Cryogenic H Spring Energized Seal maintains stable elasticity, sealing force, and dimensional integrity even at temperatures as low as -196°C.
Core strengths of Cryogenic H Spring Energized Seal
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Excellent Cryogenic Performance
Operating temperature range: -196°C to +260°C
No embrittlement or cracking at ultra-low temperatures
Stable sealing force during thermal cycling
Chemical Compatibility
Compatible with LNG, nitrogen, oxygen, hydrogen, and other cryogenic fluids
Excellent resistance to aggressive chemicals
H-Shaped Spring Energizer Design
Provides uniform radial load distribution
Compensates for thermal contraction of polymer materials
Improves sealing reliability in dynamic applications
Long Service Life
Superior resistance to cold flow
Minimal maintenance requirements
Technical Specifications
| Parameter | Value |
|---|---|
| Temperature Range | -196°C to +200°C |
| Pressure | Up to 60 MPa (design dependent) |
| Speed | Up to 5 m/s (application dependent) |
| Media | LNG, LOX, LN₂, LH₂, Cryogenic gases |
| Installation | Piston, Rod, Face, Static Groove |
Typical Applications & Industries
LNG Production & Processing
LNG liquefaction units
Cryogenic heat exchangers
Gas processing skids
LNG Storage & Transportation
LNG storage tanks
Cryogenic transfer lines
Loading arms
Valves & Flow Control Equipment
Cryogenic ball valves
Globe valves
Pressure regulators
Energy Systems
Liquid hydrogen systems
Satellite cryogenic components
FAQ
Typically down to -196°C, depending on material selection.
Yes. The H-type spring provides stable radial force suitable for reciprocating and slow rotary motion.
Yes, with proper material selection and oxygen-compatible compounds.
The spring energizer compensates for contraction and expansion, ensuring consistent sealing performance.
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