indicator valve

indicator valve

A valve whose design includes some mechanism to show that the device is open or closed.
References in periodicals archive ?
Tenders are invited for Indicator Valve Complete With Flange, Mak Drg.
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.
In one instance, the system detected a failure to close on one of the post indicator valves for the fire system.