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The reason for the structural design of the sanitary diaphragm valve is particularly suitable for ultra-pure media or heavily polluted, very viscous liquids, gases, corrosive or inert media. When combined with control equipment, diaphragm valves can replace other traditional control systems, especially for solid and easily contaminated inert media. [Working principle] The close cooperation between the valve body and the diaphragm of the sanitary Gaimi diaphragm valve provides the valve body seal and the valve seat seal to ensure complete isolation of the internal and external environment of the pipeline, so the valve is suitable for aseptic processes. Gaimi diaphragm valves are opened and closed by vertical movement of the valve stem. When the valve stem is in the upper position, the spherical diaphragm bends upward to form a conductive state. When the valve stem moves from top to bottom, the valve core is driven to bend the diaphragm, and the diaphragm is forced to cling to the valve seat area or close the fluid flow path of the pipeline. The diaphragm valve can be operated manually or pneumatically, and can also be controlled by an intelligent controller. [Standard design] There are various standards of sanitary diaphragm valve series available to customers, namely for DIN standard series, 3A standard series, SMS standard series, ISO / IDF standard series, BS / RJT, ASME, BPE and other standard series . The components of this Gaimi-type diaphragm valve include: handle / pneumatic device, diaphragm and valve body, which are assembled with bolts and nuts. The entire valve assembly is meticulous and detailed. Its actuator includes manual and pneumatic. The diaphragm has various soft and hard artificial rubbers, and the valve body is a two-way or three-way valve. The existing diaphragm valve series are: clamp quick-installation type, welded type, T-type three-way diaphragm valve and U-type three-way diaphragm valve. [Product Features] 1. Hygienic Gami diaphragm valve elastically sealed opening and closing parts to ensure that there is no internal leakage; 2. Streamlined flow channel makes pressure loss small; 3. There is no stuffing box, so there is no external leakage; 4. Valve The body and cover are separated by the intermediate diaphragm, so that the valve cover, valve stem and other parts above the diaphragm are not affected by the medium; 5. The diaphragm can be replaced, and the maintenance cost is low; 6. The diversity of lining materials can be applied to various media, And has the characteristics of high strength and good corrosion resistance.