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