Regular draining of these equipment is an essential maintenance function. By installing Auto Drain Valves, you can ensure that all equipment of the Compressed Air System get drained regularly without manual dependence, except for periodic checks. Low cost timer based ADVs are commonly used, but for larger Systems, zero air loss level based ADVs are used.Draining of Compressed air equipment such as Air Receivers, Moisture Separators, Filters, etc. is commonly done by low cost, timer – operated Auto Drain Valves.