... " 2)Material:ABS, PE,NR 53)Usage:Cooling tower, heat exchange INTRODUCTIONDetailsNameOKD-20Silk mouth specificationsG3/4 ... locking principle, control for more small, water flow more big, is the existing copper valve, stainless ... in the southwest, the east China area and cooling tower, environmental protection, anticorrosion, chemical industry, ... is widely. float valve for cooling tower level control