... (60-70degree)Connection type screw ,threadStructure type trunnion ball valveJINGHANG pvc water valve1) diameter: 1/2", 3 ... fouling 8) Insulation energy saving 9) Light weight, high strength Technical characteristics: 1) Easy to stall , easy ... no noise 4)Quality : Heat ,durableApplication: Applies to swimming pool ,wastewater treatment ,agriculture ,irrigation, industrial application new ball valve