TRUNNION BALL VALVES: Ball Valves are form of quarter-turn valve which uses a hollow, perforated and pivoting ball to control flow through it. It is open when the ball's hole is in line with the flow and closed when it is pivoted 90-degrees by the valve handle. Trunnion Ball ValveS comes in full or Reduced Bore, Connection: RF, RTJ, BW or PE, Side entry, top entry, Double Block & Bleed (DBB),Double Isolation & Bleed (DIB) Emergency seat and stem injection, Anti-static Device, Anti-blow out Stem, Cryogenic or High Temperature Extended Stem.