Cryogenic pipelines in LNG systems are typically maintained at extremely low temperatures, requiring insulation layers with excellent flexibility and shrinkage resistance. Elastic felt, due to its soft fibers and compressible structure, maintains a certain degree of toughness even at low temperatures, effectively reducing the risk of insulation cracking and failure.

When installing cryogenic pipelines, elastic felt should be uniformly wrapped around the outside of the pipeline, with the appropriate thickness and number of layers selected based on the pipe diameter. To ensure overall system performance, a metal outer sheath should be used for fixation after installation to enhance pressure resistance and durability. For areas with higher insulation requirements, double or multi-layer structures can be used to improve effectiveness.

In practical engineering, maintaining tight seals at joints is crucial to prevent thermal bridging. Proper installation methods can effectively extend system life, allowing elastic felt to provide longer-lasting insulation in the LNG field.