Even with an air dryer, some moisture will still accumulate in the compressor system. That's why it's crucial to regularly drain the condensate. Most screw air compressors come with automatic drain valves, which are set to open at specific intervals to remove the accumulated water.
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[pdf] Due to the growing need for the compressed air of higher quality, the water-lubricated twin-screw compressor with water as the only liquid in the compressor has drawn much attention to produce clean air a.
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