Diaphragm valves are suitable for shut-off and switching media as well as for diverting flow

Diaphragm valve inside the use of rubber lining and fluorine lining material, good corrosion resistance, diaphragm valve by valve body, bonnet, stem, diaphragm and cylinder, manual device and other driving parts, diaphragm valve is divided into normally open and normally closed, and according to the needs of the site, diaphragm valve can be installed with feedback signal device, limit switch, electrical positioning device, etc.
, to adapt to remote automatic control, centralized control, or do control flow adjustment use
.
Diaphragm valve is a special form of shut-off valve, its opening and closing part is a diaphragm made of soft material, the valve body cavity and the bonnet cavity and the driving parts are separated, so it is called diaphragm valve
.
Its outstanding feature is that the diaphragm separates the lower valve body cavity from the upper bonnet inner cavity, so that the stem and disc and other parts located above the diaphragm are not corroded by the medium, eliminating the packing sealing structure, and will not produce medium leakage
.
The drive mode can be divided into manual, pneumatic, electric, etc
.
Diaphragm valves are suitable for shut-off and switching media as well as for diverting and sometimes throttling
.
Valves are suitable for corrosive, viscous fluids, such as slurries, food, pharmaceuticals, textile adhesive fluids, etc.
; Diaphragm valve applications: biopharmaceutical, food, industry; As well as industrial water treatment in electric power, chemical industry, electroplating, and other industries, diaphragm valves are also used in the production of semiconductor wafers; Note: It is generally not suitable for use in pipelines with temperatures higher than 60 degrees and transporting organic solvents and strong oxidizing media, nor is it suitable; Used
in higher pressure lines.
Diaphragm valve product features: 1.
The diaphragm valve is separated from the inner cavity of the valve body from the inner cavity of the bonnet by a composite diaphragm, and a DC channel is formed with it, so that the valve stem, valve disc and other internal parts of the upper part of the diaphragm are completely isolated from the medium, eliminating the packing sealing structure, and the internal leakage and external leakage of the medium can be avoided
at the same time.
2.
The diaphragm valve uses a diaphragm made of FEP (Teflon) fluoroplastic and synthetic rubber and a valve with a tetrafluoroplastic lining layer, which can be suitable for corrosive media
other than "molten alkali metal and element fluorine".
3.
As an actuator, the diaphragm is prone to fatigue fracture due to frequent opening and closing, and should be replaced
regularly according to the working conditions and the characteristics of the medium.
4.
The anti-corrosion performance and recommended use temperature of fluoroplastics lined with fluorine diaphragm valves are shown in the "Fluoroplastic Lining Performance Table for Valves and Pipeline Accessories"
.