Sanitary stainless steel diaphragm valve: the valve is operated by a handle and a drive device, the drive device standard: normally closed, normally open, double-acting. It has the advantages of simple structure, beautiful appearance, quick disassembly and assembly, flexible operation, small fluid resistance, safe and reliable use and so on. It is suitable for the control of water and gas medium in beverage, beer, food, medicine, biology and other industries.