The HAD20B and 160B compressed air condensate automatic drain valves differ from traditional mechanical types, featuring a continuous drip discharge design. The housing is made of aluminum alloy die-casting with a cured plastic coating, providing corrosion resistance on both inner and outer walls. Inside, a stainless steel float drainage system is installed. This product operates reliably, with no noise, no compressed air loss, easy installation and maintenance, and a discharge outlet that is resistant to clogging.