The trunnion-mounted design allows the ball to hold its central alignment under the highest working pressure. Independent floating spring loaded seats provide a tight seal even at low differential pressures. offered in a Top –Entry, Two piece and Three piece designs, with a vast variety of metallurgies. Designed to standards such as API, ANSI, ASME, MSS, NACE, CE(PED), just to name a few. End connections in Flanged, Weld end (butt-weld), Pups ANSI class from 150-2500, API class 2,000-5,000.