The document describes the CTD 11-B automatic drain valve from Trident Pneumatics. The valve is microcontroller-based, has adjustable timing and drain cycles from 1 to 60 minutes and 1 to 20 seconds, and can discharge up to 150 liters of condensate per hour at 7 bar pressure. It has a large drain orifice and can be serviced without removing it by using the integrated mechanical and electronic flush functions. Trident Pneumatics also offers other compressed air treatment products including desiccant dryers, filters, and refrigeration dryers.