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C1Difficulty 2/5

What is the drain valve (bleed valve) for in the pneumatic braking circuit?

Correct answer

Remove the water that condenses in the air tanks.

The drain valve, or bleed valve, in a pneumatic braking system is responsible for removing the water that condenses in the air tanks.

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  • Remove the water that condenses in the air tanks.

  • Release any air that may be present in the circuit.

  • Regulate the maximum pressure in the circuit.

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