To keep the moisture in the air of the pneumatic brake circuit from freezing and blocking the system, what is done?

Question

DentroTest · Accepted Answer

The moisture carried by compressed air can freeze in cold weather and block lines or components of the pneumatic brake. To prevent this, the circuit may include a metering pump that adds to the air the antifreeze product provided for that equipment. Heating the brakes through continuous braking is not a solution: it does not act on the moisture in the air circuit and it wears out the friction components. And cleaning and greasing the shut-off valves and air reservoirs once a year is maintenance, but it does not prevent the moisture from freezing.

To keep the moisture in the air of the pneumatic brake circuit from freezing and blocking the system, what is done?

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