Spring-energized stem seals Singapore for API 6D LNG ball valves incorporate multiple V-rings or U-cups with live-loading to compensate for shrinkage and maintain low-leak performance during thermal cycling. Fire-safe designs retain integrity post-exposure. Singapore LNG carriers and FSRUs rely on these robust stem seals for reliable actuation and compliance with IMO and local safety ... https://globalsealstech.com/product-category/oil-gas-seals/api-6d-ball-valve-and-lng-seals/