Unison Valves Pvt Ltd offers Carbon Steel Three Piece Design Flanged Ball Valve. Unison Valves Pvt Ltd is an ISO 9001:2000 certified company. The company manufactures `UNISON` make Thermodynamic Steam Traps, Ball Valves, Globe Valves and Pneumatically Actuated Ball Valves at present and continuous efforts are on to increase the range. Carbon Steel Three Piece Design Flanged Ball Valve has design standard at IS 9890-1981. The flange dimensions of the Carbon Steel Three Piece Design Flanged Ball Valve are ANSI B 16.5. When face to face, the valve stands at ANSI B 16.10/IS 9884-1981.