Unison Valves Pvt Ltd offers Three Piece Design S/E, S/W, B/W 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. The design standard of Three Piece Design S/E, S/W, B/W Ball Valve is IS 9890-1981. Three Piece Design S/E, S/W, B/W Ball Valve has Pressure Testing at BS 6755 Part I/API 598/IS 6157-1981. The screwed dimensions are ANSI B 1.20.1/BS 21/IS 554. The socket weld dimensions of the valve are ANSI B 16.11/BS 5351/ IS 4712. Butt Weld Dimensions are ANSI B 16.25/BS 5351/ IS 11790.
