The UNITED Fire Systems CMA-1 is a device for monitoring the possible corrosion inside of a wet or dry sprinkler system piping. The assembly consists of a corrosion probe in a chamber, a pressure switch, an isolation valve, and a drain valve. The corrosion probe keeps pressure from reaching the pressure switch. When corrosion perforates the probe, pressure reaches the pressure switch, actuating a signal and providing early warning of possible corrosion inside the piping. The isolation valve allows replacement of the corrosion probe without depressurizing the entire system, and the drain valve safely vents pressure from the probe chamber.

Technical Data

• Inlet Connection = 1/2” NPT female
• Pressure Switch Setting Range = 4 to 8 PSIG
• Switch Contact Ratings = 10 A @ 125 / 250 VAC and 2 A @ 30 VDC
• Maximum Recommended Inlet Pressure = 300 PSIG

Contact UNITED Fire Systems Today

Give us a call at 908.688.0300 or contact us online to request more information about our Sprinkler Accessories.