Air tools require clean, dry air. Water vapor in the air will damage tools and freeze in cold weather. An after-cooler reduces the temperature of the compressed air and condenses the water vapor into liquid. Most of the water is extracted and collected in a drain bottle. The drain valve in the bottle has a small discharge of air which increases with system pressure to discharge water from the after cooler. The air then passes through an air dryer which removes any remaining water vapor. The water collects at the bottom of the air dryer which automatically expels the water with a small blast of air. Similar to the Cummins Air Vantage except for two additional brackets, a shorter discharge reservoir and a relocated general purpose filter designed to accommodate the much smaller welder envelope size.
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