1) Diameter: 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" 2-1/2" 3" 4" 2) Standard: BS, ANSI, CNS,GB 3) With socket and ... -R (ppr)ball valve series. (compact ball valve, double union ball valve)Specification: 1) Diameter: 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" 2-1/2" 3" 4" 6"2 ... ) Standard: BS, ANSI, CNS,GB3) With socket and threaded end 4 ...