Trunnion mounted ball valve, full bore and through conduit, Double Block and Bleed, fire safe, control of fugitive emissions. Qualified for all petroleum and gas services including sour service and low temperatures, fabricated in forged carbon steel (three-piece design and/ or one-piece welded body), cast carbon steel (two-piece design), low carbon steel LF2 (three-piece design and/ or one-piece welded body), and special materials on request. Ball, stem, and seats are provided with an Electroless Nickel Plating (ENP of 0.003” or 0.013 mm thickness). The valves are available in sizes from 2” to 48” in different classes: ANSI 150, 300, 600, 900, 1500, and 2500 with flanged (RF and RTJ) and connections (BW). The Trunnion ball valves are equipped with unique spring-loaded seats which assure a hermetic sealing even at low work pressures. Moreover, it is provided with a seat insert as standard in Reinforced PTFE in sizes from 2” to 4” and in Nylon from 6” to 48”; the customer has the option to get other materials on request, such as metal-to-metal seats with several coverings like Stellite, Tungsten Carbide, and Chrome Carbide for ball, stem, trunnion, and seat of 0.006” of thickness for highly abrasive fluids (please consult us). In sizes from 2” to 4” the valves are operated with a lever, in 6” and larger with a gear operator. The Trunnion ball valves are designed and fabricated in accordance with the norms NACE MR-0175, API 6D, (ISO-14313), Fire safe API 607 (BS-6755, ISO 10497), API 598, ASME B16.5, ASME B16.10, ASME B16.25, and ASME B16.34.