Butterfly valveAdopts foreign technology, is made of high-density polyethylene and other engineering plastics, and is assembled, with novel structure and beautiful appearance. Applicable containersSuitable for simple IBC containers with 62mm /75mm coarse thread. Size: DN 40/2.5 inch FeaturesIt has the advantages of acid resistance, alkali resistance, corrosion resistance, high mechanical strength, easy opening and so on, and can be used repeatedly to protect the environment .Widely used in chemical process and acid, liquid storage tanks, tanks, tank outlet control valves. DesignThe valve is used for controlling the outlet of plastic tank to prevent that liquid splashes around. Combines the advantages of a robust butterfly valve with the advantages of a rotatable connection using the aluminum union nut. The flap valve is placed straight and tightened with the help of the union nut.