【Materials】: The valve is made of high-density polyethylene and is assembled by injection molding, with a novel structure and beautiful appearance. 【Design】: The valve is used to control the outlet of the plastic tank to prevent liquid from splashing. It combines the advantages of a sturdy flap valve with the advantages of rotating connection using the aluminum union nut. 【Features】: It has the advantages of acid resistance, alkali resistance, corrosion resistance, high mechanical strength, easy opening and so on, and can be used in multiple ways. 【Compatibility】: The IBC container flap valve fits most standard IBC tank rainwater tank containers in Europe. Suitable for single IBC containers with 62mm coarse thread.