VCR Diaphragm Valve 316 Stainless Steel Diaphragm Valve, Manual Diaphragm Valve High Pressure Diaphragm Valve, High Purity Gas Diaphragm Valve

The structure of a diaphragm valve is significantly different from that of general valves. It is a unique type of valve and a special form of shut-off valve. Its opening and closing component is a diaphragm made of soft material, which separates the inner cavity of the valve body from the inner cavity of the valve cover and the driving components. It is now widely used in various fields. Common types of diaphragm valves include rubber-lined diaphragm valves, fluorine-lined diaphragm valves, unlined diaphragm valves, and plastic diaphragm valves.
A diaphragm valve is equipped with a flexible diaphragm or a combined diaphragm inside the valve body and cover, and its closing component is a compression device connected to the diaphragm. The valve seat can be weir-shaped or the wall of a straight-through flow channel. The advantage of a diaphragm valve is that its operating mechanism is isolated from the medium pathway, ensuring not only the purity of the working medium but also preventing the possibility of the medium in the pipeline impacting the operating components of the mechanism. Additionally, no separate sealing is required at the valve stem unless used as a safety measure in controlling hazardous media. In diaphragm valves, since the working medium only comes into contact with the diaphragm and the valve body, both of which can be made from various materials, this valve is ideal for controlling a wide range of working media, especially those with chemical corrosiveness or suspended particles. The working temperature of a diaphragm valve is typically limited by the materials used for the diaphragm and the valve body lining, with a working temperature range of approximately -50 to 175°C. Diaphragm valves have a simple structure, consisting of only three main components: the valve body, the diaphragm, and the valve head assembly. The valve is easy to disassemble and maintain quickly, and replacing the diaphragm can be done on-site in a short time.