API 6D Gas-Liquid Ball Valve Manufacturer: RF Flanged Gas-Liquid Ball Valve, compliant with API 6D standards, available in sizes from 2 to 24 inches, with pressure ratings from Class 150 to 2500 LB. Constructed from Carbon Steel, Stainless Steel, and Alloy Steel, featuring RF flanges per ASME B16.5 specifications.For more,know more about China Manufacturers.