Product description ZXT, ZST pneumatic diaphragm, piston diaphragm control valve (pneumatic diaphragm valve) is sealed with a "mountain" -shaped convex surface between the diaphragm and the valve body, which is isolated from the outside (no stuffing box), and the valve body has a simple and smooth flow path. Can be covered with anti-corrosion layer, especially suitable for corrosion resistance,
Executive standard: Follow the standard STANDARD Design and specification Design GB 12239 Structural length Face to face GB 12221 / JB 1688 Flange dimensions End flange JB 78 / JB 79 (GB HG SH) Pressure test Test GB / T 13927 Symbol GB 12220
Product introduction: It is characterized by the structure without stuffing box, and the throttle element is an elastic diaphragm, which can ensure no leakage when the valve is closed. Because the flow path is smooth, the flow resistance is small, and it has great flow capacity, it is extremely suitable for high-concentration coarse fibers and those with more suspended particles.
Diaphragm valves are a special form of shut-off valve that appeared in the 1920s. Its opening and closing piece is a diaphragm made of soft material, which separates the internal cavity of the valve body from the internal cavity of the valve cover and the driving part, so it is called a diaphragm valve. The most prominent feature is that the diaphragm separates the inner cavity of the lower valve body from the inner cavity of the upper valve cover, so that it is located above the diaphragm.
The sanitary diaphragm valve is remotely controlled by the driving device or manually operated by the handle. There are three standards for the driving device: normally closed, normally open and gas type. It has the advantages of simple structure, beautiful appearance, fast disassembly and assembly, flexible operation, small fluid resistance, and safe and reliable use. Suitable for chemical, petroleum, metallurgy, water
Straight-through diaphragm valve related models: G46J / G46X / G46F Diversity of valve body materials, including cast iron, ductile iron, cast steel, forged steel and lining various materials. The lining materials are: Glass, ETFE, PFA, PVDF, Halar, rubber, and materials that can be specially processed according to demand. Various films