Diaphragm Type Solenoid Valves

Diaphragm valves function through the movement of the diaphragm in the valve. As the diaphragm moves, the seat opens and closes. This causes the state of the solenoid valve to change. Within the diaphragm valve, there is a small orifice which allows water to flow to a chamber between the diaphragm and the bonnet. Once the water has passed through the bonnet, it arrives in the solenoid area. The diaphragm control valve then closes, covering the inlet port hole. This movement is controlled by a light spring-loaded metal piston.

Solenoid valves are a combination of two functional units: One is a solenoid operator, consisting of a coil, core, core tube or a shading coil and spring and the other half of the solenoid consists of the valve body: This can either be a disc, diaphragm or piston. The type of solenoid valve used will depend on specific application requirements. The purpose of a diaphragm in a diaphragm-type solenoid valve is to control the air within a certain space. These control valves can also be either open or closed, depending on the movement of the magnetic core.