New Sentinel series drain valves from Van Air Systems, Inc. are designed to reliably manage any fluid by incorporating a clog-resistant, heavy duty ball valve. Two models provide dependable around-the-clock draining. In addition to running in programmable modes, both models can operate in response to an optional liquid level sensor for zero air loss draining. Model MDV-400L features an easy-to-use keypad for timing adjustments and an LCD cycle status readout, which continuously counts down the remaining cycle or drain open times. Model MDV-400I is a basic drain with a power LED and test button located in the top cover. Cycle and open times are reset by removing the top cover and adjusting switches on the internal circuit board.

For additional information, call (800) 840-9906, fax (800) 826-2471 or e-mail ajackson@vanairsystems.com.