Features EASY TO ADJUST --- Automatic drain valve, turn the button to adjust the drainage speed, and brass knob to adjust the frequency of the automatic drain. GOOD FILTERING --- The structure design of upper and lower filter screens, with large flow holes, can effectively prevent clogging and facilitate sewage discharge. MAIN PURPOSE --- The drain valve can be used in the compressed air equipment and pipelines during startup to timely discharge the coolant generated inside. ALUMINUM ALLOY --- The drain valve adopts aluminum alloy shell, which is wear resistant and corrosion resistant, and is not easy to rust in wet environment. STANDARD SIZE --- The automatic drain valve has a standard 1/2in NPT inlet pipe diameter, stable connection, and has a working pressure range of 0-16Bar. Specification: Item Type: Automatic Drain Valve Applicable Medium: various compressed air Operating Temperature: 0-80 ℃ Operating Pressure: 0-16Bar Inlet Pipe Diameter: 1/2in NPT Drain Connection Pipe: Approx. 8mm / 0.3in Scope of Application: Air compressor, air receiver, dryer, filter, air compression pipeline, etc Package List:1 x Automatic Drain Valve1 x Interface Fitting Package List 1 x Automatic Drain Valve 1 x Interface Fitting