In API 6D-compliant cryogenic ball valves, LNG seals include lip seals and V-packing for stem assemblies. Singapore suppliers emphasize low-temperature flexibility to avoid brittleness. Habonim cryogenic valves, distributed locally via INKO Engineering, incorporate extended bonnets with these seals to keep packing at ambient temperatures, enhancing longevity in LNG operations https://globalsealstech.com/product-category/oil-gas-seals/api-6d-ball-valve-and-lng-seals/