Float valve 1)Thread:1/2" to 2" 2)Material:ABS, PE,NR 53)Usage:Cooling tower, heat exchange INTRODUCTIONDetailsNameOKD-20Silk ... more small, water flow more big, is the existing copper valve, stainless steel valves that elusive place. At present has set ... containers used extensively, adaptable than the traditional metal ball float valve is widely. float valve for cooling tower level control