our brass ball valves are mainly used for PAP pipe and fittings , normal brass fittings .Normally , there is male , female and general screw ball valves, sized from 1/2" to 2", clamp style brass ball valves sized from 1" 21/2", press style brass ball valves from 1/2" to 11/4" ,the mini ball valve like 1/4" . Based on the good technic team and using good quality brass , our brass ball valves advanced in using quality.