【Applicable】 - The IBC flapper valve is suitable for most standard IBC rainwater tanks in Germany and Europe. Suitable for single IBC containers with 62mm thick thread. Premium Butterfly Valve - The valve is made of high-density polyethylene and assembled by injection molding, with novel structure and beautiful appearance. 【Safe Hold】- The valve is used to control the outlet of the plastic container to prevent liquid splashing. It combines the advantages of a sturdy flap valve with the advantages of the rotary union using the aluminum union nut. The flapper valve is placed straight and tightened with a nut. Superior quality: It has the advantages of acid resistance, alkali resistance, corrosion resistance, high mechanical strength, easy opening and so on and can be repeatedly used to protect the environment. Most used in chemical and acid process, in liquid containers, in vessels and in vessel regulating valves. Features: - It has the advantages of acid resistance, alkali resistance,