The following figure describes the basic components of the solenoid valve.
The valve shown in the figure is a normally closed direct acting valve.
This type of solenoid valve has the simplest and easiest to understand working principle.
1. Valve Body 2. Inlet Port 3. Outlet Port 4. Coil / Solenoid
5. Coil Windings 6. Lead Wires 7. Plunger 8. Spring 9. Orifice