... 4" 2) Standard: BS, ANSI, CNS,GB 3) With socket and threaded end We have rich experience in producing high ... -R (ppr)ball valve series. (compact ball valve, double union ball valve)Specification: 1) Diameter: 1/2", 3/4", ... 4" 6"2) Standard: BS, ANSI, CNS,GB3) With socket and threaded end 4) Material: High quality PVC, ABS, PP ... own a good chance! Cooperation means benefit! UPVC socket Ball Valve,1/2"-2"