Master Valve USA is a full range ball valve manufacturer and your supplier of choice for: - API specs: API 6D; API 6A; API 600, API 6D SS,API 602 API 607; API 6FA; API 598; API 608 - ASME/ANSI specs: B16.5; B16.10, B16.25; B16.34; B16.47; B31.1 - NACE MR 0175 - Fugitive emission standards: TA-Luft/ISO 15848 - API 6A applications - Cryogenic services such as LNG - Subsea and fully welded valves - Extended stem valves for buried services - Metal seated ball valves for corrosive or abrasive services - Welding overlay ball valves - Special testing to meet your requirements such as fugitive emission - Industrial applications: gas transmission pipeline, pumping station, compressor station, gas processing plant, offshore platform, FPSO, refinery, chemical and petrochemical processing plants etc.