The AFH series pneumatic flexible valve is a universal clamp valve specially developed for the animal husbandry industry. It is made of high-strength aviation grade plastic steel composite materials and special rubber materials, suitable for the complexity of wastewater composition in the animal husbandry industry. It has a series of advantages such as high and low temperature resistance, corrosion resistance, high strength, and long service life. For the large soft and hard mixed substances doped in wastewater, it has a unique advantage that other traditional valves are difficult to handle.