indicator valve

indicator valve

A valve whose design includes some mechanism to show that the device is open or closed.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Since then the product range was enlarged with post indicator valves, check valves and fire hydrants.
Multi-ported pressure indicator valves, supplied by Keine, allow for connection of portable analyzers or connection of a reference pressure sensor for online calibration of the pressure sensors.