About this item Use: The IBC flap valve is suitable for most standard IBC tanks in Germany and Europe. Suitable for single IBC containers with 62 mm coarse thread. High-quality butterfly valve: The valve is made of high-density polyethylene and is assembled by injection molding, assembled with a novel structure and beautiful appearance. 【Secure Hold】– The valve is used to control the outlet of the plastic container to prevent liquid from splashing. Combines the advantages of a robust flap valve with the advantages of the rotary union. using the aluminum nut. The flap valve is placed straight and using the connecting nut. Premium Quality: It 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. Most used in chemical process and acid, liquid tanks, containers, container outlet control valves.