The AD40204 1/2 in Auto Drain Valve is an allinone air preparation unit for compressed air systems. It combines a water trap, air separator, dryer and drainer filter with an automatic drain to provide dry, clean air to downstream components. This compact assembly helps protect tools, actuators and downstream equipment from moisture, particulates and related performance issues. Key benefits Automatic drain simplifies maintenance by removing condensate without manual intervention. Water trap and separator remove moisture from the compressed air to reduce corrosion, rust and freezing in cold environments. Integrated dryer and drainer filter improve air quality, enhancing tool performance and actuator reliability. Compact 1/2 in footprint fits quickly into standard lines and tight spaces. Improves upstream and downstream system efficiency by delivering consistently dry and filtered air. Key attributes Functionality: Auto drain valve with integrated water trap, separator, dryer and drainer filter. Port size: 1/2 inch. Compatibility: Designed for standard pneumatic systems and lines using 1/2 inch connections. Performance: Removes moisture and particulates to deliver dry, clean air to downstream equipment. Size: 1/2 inch porting for compact installation. Material: not specified in the product title; refer to the datasheet for material details. Model and brand: AD40204. Typical applications Painting and finishing lines where spray quality depends on dry, consistent air. Automation and CNC equipment where moisture can cause corrosion, actuator sticking or freezing. Workshop air tools and pneumatic grippers that require clean, dry air to extend component life and reduce jams. How it works Air enters the AD40204 through a 1/2 inch port. Condensate and moisture are captured by the water trap and separated from the airflow. The integrated dryer and drainer filter further condition the air by removing residual moisture and particulates. The auto drain releases collected moisture automatically, maintaining dry air to the downstream pneumatic system. Installation and usage notes Suitable for standard 1/2 inch pneumatic lines and fittings. Install inline with the compressed air supply to ensure preconditioning before reaching sensitive tools or actuators. Regular inspection of the drain mechanism is recommended to maintain automatic operation. This description preserves the product's model AD40204 and its stated features (1/2 in auto drain capability with water trap, separator, dryer, drainer filter) and presents clear, practical guidance on benefits, attributes, and typical uses.