Seema enterprises manufactures weatherproof auto drain valves for handling mucky condensate and withstand harsh outdoor conditions. These auto drain valves are available with salient features like large discharge orifice does not get choked by mucky condensate; external pilot operation eliminates internal pilot orifice clogging problems; lamps and test button on the sides with seals making the valves weather-proof; isolation valve and separate strainer for easy cleaning and servicing; eliminates compressed air wastage; reduces cleaning frequency and reliable timer for excellent repeatability and long life.