Graphite-based gaskets reinforced with metal foil or wire mesh provide excellent sealing characteristics, broad temperature capability including fire resistance, and good conformability to flange surfaces, though compatibility with cryogenic temperatures and potential for galvanic corrosion in certain material combinations requires careful evaluation for specific LNG valve application... https://globalsealstech.com/product-category/oil-gas-seals/api-6d-ball-valve-and-lng-seals/