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How does a semi truck compressed air dryer work?

How does a semi truck compressed air dryer work? How they work involves a simple procedure; air travels through the end cover assembly – called the charge cycle – it’s direction in flow changes several times, reducing the temperature and causing contaminants to condense and drop in the bottom of the sump.

How does a truck compressed air dryer work? Air is heated as it’s compressed, and it cools as it travels through the discharge line to the air tank. This cooling results in condensation creating pools of water in the bottom of the truck’s air tanks. Truck compressed air dryers were created to minimize the amount of moisture and other contaminants that make it to the air tanks.

What does truck compressed air dryer do on semi truck? Truck compressed air dryers are installed between the air compressor and the “wet tank” on commercial trucks and motor coaches. Their purpose is to filter out water vapor, oil vapor, and other contaminants before they can reach the air tanks and valves. This helps prevent freeze-up during the winter and extends the life of air valves.

How often should truck compressed air dryer purge? Air Tanks and Purge Valves

A second simple step toward keeping the air system moisture-free in winter is manually draining the air tanks – periodically, based on the truck’s air usage. Up to once a month for vehicles with high air demand or every three months for a typical line haul truck is recommended.

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