Working principle of double coil solenoid valve, structure diagram of double coil solenoid valve

Double coil Working principle of solenoid valve

After the single coil is energized, the mechanical part of the valve core moves, and after the power is lost, it returns to the original position by mechanical force. The mechanical part of the double coil moves when coil 1 is energized, and its position remains unchanged after it is deenergized. When coil 2 is powered, the mechanical part changes from position 1 to position 2, and remains there after losing power.

This is generally: "Three-position four-way valve" or "three-position two-way valve". Three positions, in layman's terms, there are three gears 1/0/2. When coil 1 is energized, the spool goes to 1, and when coil 1 is de-energized, the spool returns to 0. When coil 2 is energized, the spool opens to 2, and when coil 2 is de-energized, the spool returns to 0. This type of valve is very common.

Double electronic controls are available Two solenoid coils, double coils should usually be solenoid directional valves. The single coil is always energized and the air intake is turned on, while the double coil is energized instantly.

Single coil solenoid valve The slide valve is spring-return, Solenoid ValveThe solenoid valve automatically resets after power loss. The double-coil solenoid valve requires the other side of the coil to be energized to change positions.

Double coil solenoid valve There are two coils A and B. The actions are as follows. A is not energized and B is not energized. The solenoid valve is in the initial position. If A is energized and B is not energized at this time, the solenoid valve action changes direction.

Double coil solenoid valve structure diagram

1. Junction box

2. Fixing nut

3. Coil

4. Pilot head assembly

5. Pressure plate

6. Piston

7. Countersunk head screws

8. Valve body

9. Valve stem

10. O-ring

11. Spring

12. Back cover

13. Round head screws< /span>

14. Manual lever

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