Air/Water Retard Guage 0-80/250 psi (SG1)

SPRINKLER GAUGES AND VALVES /ASHCROFT SPRINKLER GAUGES are designed for use on wet or dry sprinkler systems. The 3 1/2" gauges are UL listed and FM approved. The SG1 is used in a dry system on the sprinkler head side of the control valve to accurately monitor line air pressure, with the ability to accept water pressure up to 250 psi (upon system activication). The SG2 is used on the water supply side of the system to indicate available source pressure. The SG3 accomodates both air and water sides up to 300 psi.