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SOLENOID VALVE CONSTRUCTION/OPERATION

BHE051321101T06

## Construction

• The construction of all solenoids is the same, but the polarity of the positive and negative terminals is different.

1 | Output port (solenoid pressure)
2 | Drain port
3 | Supply port (pilot pressure)
4 | Normal low

## Operation

Normal high

• De-energized (OFF) or duty 0%

  – Solenoid pressure is supplied to the output port because the output port (solenoid pressure) and the supply port (pilot pressure) connect in the solenoid.

• Energized (ON) or duty 100%

  – Solenoid pressure is drained because the output port (solenoid pressure) and the drain port connect.

1 | De-energized (off)
2 | Energized (on)
3 | Output port (solenoid pressure)
4 | Supply port (pilot pressure)
5 | Drain port

Normal low

• De-energized (OFF) or duty 0%

  – Solenoid pressure is drained because the output port (solenoid pressure) and the drain port connect in the solenoid.

• Energized (ON) or duty 100%

  – Solenoid pressure is supplied to the output port because the output port (solenoid pressure) and the supply port (pilot pressure) connect in the solenoid.

1 | De-energized (off)
2 | Energized (on)
3 | Output port (solenoid pressure)
4 | Drain port
5 | Supply port (pilot pressure)