The closing and opening of plastic diaphragm valves are achieved by applying pressure from the pipeline to enhance the rubber diaphragm. When the pressure medium enters the valve control chamber, the diaphragm is pressed down and the valve channel is closed. When the pressure in the control chamber is discharged to the atmosphere or downstream pipeline, the diaphragm rises and the valve channel is opened. The valve does not have a valve stem, sealing gasket, directional seat, etc. The moving component in the channel is the diaphragm, so there is no rust or locking phenomenon, and it has higher stability. Multiple structural and control forms, suitable for various fluid control needs.

What are the applicable ranges of plastic diaphragm valves

Plastic diaphragm valves are widely used in industrial automation systems due to their advantages of low negative force, large flow rate, no external leakage, convenience, reliability, fire prevention and explosion prevention due to the use of corrosion-resistant valve bodies and corrosion-resistant diaphragms, no stuffing box structure, elastic diaphragm throttling elements, and smooth valve body flow channels Flow regulation of media with fibers and toxic and non polluting media.