The AD40204 1/2 inch Auto Drain Valve is a compact pneumatic accessory designed to automatically drain condensate from compressed air lines. It integrates a water trap, separator, dryer, drainer, and filter in a single unit to help deliver cleaner, drier air and protect downstream equipment. Key benefits Automatic condensate removal reduces moisture and minimizes corrosion, rust, and water carryover in the pneumatic system. Integrated water trap, separator, dryer, drainer, and filter provide a compact, allinone solution for air treatment. Maintenance auto drain operation lowers downtime and eliminates manual draining tasks. Inline design enables easy installation into standard air lines and treatment trains. Helps extend the life and performance of downstream components such as actuators, valves, sensors, and pneumatic tools. Key attributes Port size: 1/2 inch Model: AD40204 Type: Auto drain valve for pneumatic air sources Integrated components: water trap, separator, dryer, drainer, and filter Application: suitable for standard pneumatic systems requiring moisture and contaminant control Installation: inline connection between compressor and downstream components How it works The auto drain valve continuously monitors condensate in the compressed air line and releases accumulated water automatically. The water trap and separator remove water from the air stream to prevent moisture carryover. The integrated dryer and drainer further reduce moisture content, while the filter helps remove particulates for cleaner air. Applications and use cases Manufacturing and automation lines: automatically drain condensate to protect pneumatic actuators, valves, and sensors from moisturerelated issues. Paint booths or finishing lines: maintain dry, clean air to improve coating quality and tool longevity. General workshop or plant air systems: provide a compact, maintenancefriendly solution for delivering cleaner, drier air to multiple tools and components. Specifications at a glance Model: AD40204 Port size: 1/2 inch Function: Auto drain valve with integrated water trap, separator, dryer, drainer, and filter Suitable for: pneumatic air sources and standard compressed air lines requiring moisture and particulate control The AD40204 1/2 inch Auto Drain Valve offers a practical, compact solution for improving air quality in pneumatic systems. It delivers automatic drainage, moisture separation, drying, and filtration in a single unit, helping protect equipment, reduce maintenance, and maintain consistent system performance.