API 6D ball valve and LNG seals ensure zero-leak performance in pipeline, LNG terminals, and cryogenic systems, rated to 15,000 psi and -196°C per API 6D (25th Edition). Trunnion-mounted ball valves dominate, with soft (PTFE/Nylon) or metal seats, stem packing, and body gaskets. LNG seals use PCTFE, PEEK, or Inconel with graphite for fire-safety. Material classes AA-HH and temperature... https://globalsealstech.com/product-category/oil-gas-seals/api-6d-ball-valve-and-lng-seals/