The pneumatic sanitary diaphragm valve is a sterile diaphragm valve whose control principle is a pneumatic actuator that is connected to the pressure of the air source, and uses the pressure of the air source to activate the pneumatic actuator to achieve the opening and closing action of the valve. Its opening and closing member is a diaphragm made of soft material. The close fitting of the valve body and the diaphragm provides the valve body seal and the valve seat tightness, and separates the valve body cavity from the bonnet cavity and the driving component. Pneumatic Hygienic Diaphragm Valves are ideal for food level pipe fluid control and on/off tasks.
The outstanding feature of the pneumatic sanitary diaphragm valve is that the diaphragm separates the lower valve body cavity from the inner cavity of the upper valve cover, so that the valve stem, valve flap and the like located above the diaphragm are not corroded by the medium. Such a construction not only eliminates the packing sealing structure, but also does not cause leakage of the medium. When the valve stem is in the upper position, the diaphragm of the diaphragm valve moves up and down to drive the valve core to bend the diaphragm, and the diaphragm is pressed against the valve seat area to close the pipeline fluid to the path; otherwise, the path is opened.
Pneumatic sanitary diaphragm valves are widely used in the sanitary industry, in the food industry such as brewing, dairy, beverages, and in the pharmaceutical field of aseptic conditions. Pneumatic sanitary diaphragm valves are also used in ultra-pure media in the semiconductor and microelectronics industries, such as high purity chemicals. Different types of valves can be used for: ultra-pure water (water for injection), ultra-purified medicine, bio-pharmaceutical, food processing and chemical industry finished products, semi-finished products. The high-tech design makes the valve hygienic and durable. Pneumatic sanitary diaphragm valves have good controllability.
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