Global Seals Technologies' API 6D ball valve LNG seals category includes seal stacks with anti-extrusion rings. These prevent gap extrusion under high differential pressures in cryogenic conditions. Tailored for Singapore's marine and offshore LNG applications, they ensure reliability during loading/unloading. https://globalsealstech.com/product-category/oil-gas-seals/api-6d-ball-valve-and-lng-seals/