Day: October 21, 2021

The structure of the diaphragm valve is very different from the general valve. It relies on a soft rubber film or plastic film to control the fluid movement. Common diaphragm valve materials are divided into ductile iron，cast irons, cast steel , stainless steel, and plastic .

The structure of the diaphragm valve is quite different from the general valve. It is a new type of valve and a special form of cut-off valve. Its opening and closing part is a diaphragm made of soft material. The inner cavity of the cover and the driving part are separated and are now widely used in various fields. Commonly used diaphragm valves include rubber-lined diaphragm valves, fluorine-lined diaphragm valves, unlined diaphragm valves, and plastic diaphragm valves.

Diaphragm valve is composed of valve body, valve bonnet, valve disc, valve stem, diaphragm and other driving parts. It is a special form of shut-off valve. Its opening and closing parts are composed of a diaphragm made of a soft material inlaid with a metal valve clack, which separates the inner cavity of the valve body from the inner cavity of the valve bonnet and the driving parts. The most prominent feature of the diaphragm valve is that the diaphragm separates the inner cavity of the lower valve body from the inner cavity of the upper bonnet, so that the valve stem, valve clack and other parts located above the diaphragm are not corroded by the medium, which can ensure the purity of the medium and will not make the medium. leak.