Sprinkler Flow Switch Operation

Supervisory switches help prevent tampering or incorrect setting of valve controls.

Sprinkler flow switch operation. For the test to be valid sufficient water must pass the flow switch to activate it equal to one sprinkler head in operation. All flow switches should be tested in accordance with tb203 3 2 as part of a mandatory quarterly service routine. Pressure switches indicate a discharge from a sprinkler. The flow switch will indicate its location a fire indicator panel but may not call the fire brigade.

In the case of a fire for example a flow switch can trigger an. Waterflow detectors monitor the flow of water to sprinkler heads. In the case of a multi storey building there is typically one flow switch per floor. A flow switch will also operate in the affected section of the fire sprinkler system indicating the location of the water flow.

Wet pipe fire sprinkler systems require an alarm check valve a device that prevents water from flowing in the wrong direction and features a flow switch or another listed means of sounding an alarm 16 11 3 1. Switches used to detect waterflow must cause an audible. Nfpa 13 s requirements address each type of switch in turn. Prior to the test the pressure on both sides of the flow switch will be equal maintaining an.

All three also come in explosion proof versions for hazardous environments.