Stem seals in Singapore-supplied API 6D LNG ball valves utilize live-loaded graphite-free or HermetiX configurations. These achieve ISO 15848-1 fugitive emission compliance while withstanding cryogenic cycling. Local testing facilities verify performance, supporting regional LNG terminal expansions. https://globalsealstech.com/product-category/oil-gas-seals/api-6d-ball-valve-and-lng-seals/