Exceptional Low-Temperature Reliability
These seals retain flexibility and sealing capacity at temperatures approaching and below typical LNG service conditions, preventing hardening or cracking that would lead to leakage.
Consistent Sealing Force
The internal spring energizer continuously applies pressure to the sealing lip. This self-compensating mechanism improves sealing effectiveness through pressure cycles, temperature shifts, and component wear.
Material Versatility
Using PTFE and similar engineered polymers gives excellent chemical compatibility with LNG and other cryogenic gases, combined with low friction and self-lubricating properties for reduced wear.
High Durability & Lifecycle
Compared with traditional elastomer seals, spring energized designs significantly extend service lives and withstand repeated thermal cycling without a loss of sealing performance.
why choose us
Kaflon for LNG Spring Energized Seals
Advanced Material Selection
We offer a wide range of cryogenic-grade polymers and spring materials (stainless steel, Elgiloy), optimized for LNG service conditions.
Custom Design Capability
Kaflon provides tailor-made spring energized seals, including customized profiles, spring types (V-spring, helical spring, canted coil spring), and material combinations.
Strict Quality Control
Every LNG seal is manufactured under strict quality standards, ensuring dimensional accuracy, material consistency, and reliable sealing performance.
industry applications of LNG Spring Energized Seals
LNG Production & Processing
- LNG liquefaction units
- Cryogenic heat exchangers
- Gas processing skids
LNG Storage & Transportation
- LNG storage tanks
- Cryogenic transfer lines
- Loading and unloading arms
Valves & Flow Control Equipment
- Cryogenic ball valves
- Globe valves and gate valves
- Control valves for LNG service
Pumps & Rotating Equipment
- Cryogenic centrifugal pumps
- Submerged LNG pumps
- Compressor sealing systems
Frequently Asked Questions (FAQ)
Spring energized seals maintain sealing force through a metal spring, which compensates for thermal shrinkage and material stiffness at cryogenic temperatures where elastomer seals fail.
Typically from –196°C up to +260°C, depending on the polymer and spring material selection.
Yes. They are widely used in static sealing (valves, flanges) and dynamic sealing (pumps, rotating shafts) in LNG systems.
Absolutely. Kaflon offers custom-engineered solutions based on operating temperature, pressure, media, and installation space.
Unlike elastomer O-rings, spring energized seals do not rely on rubber elasticity, making them far more reliable in cryogenic LNG environments.
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