Low Temperature LNG Seals

LNG seals are engineered for cryogenic temperatures, often below -160°C, where standard materials fail. These seals are made from PTFE, modified PCTFE, or elastomers specially formulated for low-temperature flexibility and chemical resistance. LNG seals are used in pumps, valves, loading arms, and transfer systems within LNG storage, transport, and processing. They ensure long-term sealing reliability in liquefied natural gas operations, preventing leakage and maintaining system integrity under thermal shock and pressure variations.

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LNG seals

LNG seals are engineered to perform in cryogenic conditions, commonly found in liquefied natural gas storage and transport. Made from PTFE, PCTFE, or cryogenic-grade elastomers, LNG seals maintain flexibility and sealing force at ultra-low temperatures. These seals are widely used in LNG pumps, valves, loading arms, and transfer lines. They resist thermal shock, pressure changes, and aggressive media, ensuring safe and leak-free operation in critical LNG systems.

LNG Seals
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LNG Seals
When the LNG seal is seated in the gland, the spring is under compression, applying force on the gland sealing
surfaces and creating a tight barrier to prevent gas or fluids from leaking. The spring also
provides resiliency to compensate for seal wear, gland misalignment, or eccentricity.
While spring force provides adequate force for sealing at low pressure, at high pressure
the system pressure augments the spring force to provide an even tighter seal.
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