All compressed air systems produce internal condensate that, if not properly drained, can cause equipment damage, downtime and wasted man-hours. Drain valves automatically discharge accumulated fluids from air compressors, after coolers, filters, dryers, drip-legs, receivers, separators and other collection points. A drain valve should be installed at each of these liquid collection points. The installation of drain valves will ensure a compressed air system free from the damaging effects of liquid and sludge.