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Pneumatic valve , Solenoid valve , Pneumatic component , China Pneumatic, Cylinders

solenoid valve common uses

A common use for 2 way solenoid valves is in central heating. The solenoid valve are controlled by an electrical signal from the thermostat to regulate the flow of heated water to the heating elements within the occupied space. Such valves are particularly useful when multiple heating zones are fed by a single heat source. Commercially available solenoid valves for this purpose are often referred to as zone valves

How does a solenoid valve work

The media controlled by the solenoid valve enters the valve through the inlet port (Part 2 in the illustration above). The media must flow through the orifice (9) before continuing into the outlet port (3). The orifice is closed and opened by the plunger (7).  
The valve pictured above is a normally-closed solenoid valves. Normally-closed valves use a spring (8) which presses the plunger tip against the opening of the orifice. The sealing material at the tip of the plunger keeps the media from entering the orifice, until the plunger is lifted up by an electromagnetic field created by the coil.

The different parts of a solenoid valve

different parts of a solenoid valve

1. Valve Body
4. Coil / Solenoid  
7. Plunger 
2. Inlet Port
5. Coil Windings
8. Spring
3. Outlet Port  

6. Lead Wires

9. Orifice

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