Sprinkler Flow Switch Operation

A water flow detector commonly produced by system sensor is an electro mechanical device designed to send an alarm to a fire alarm panel and or fire department when a continuous flow of water occurs through the fire sprinkler system s piping from an activated sprinkler head or leak in the system.

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. Supervisory switches help prevent tampering or incorrect setting of valve controls. In the case of a multi storey building there is typically one flow switch per floor. Switches used to detect waterflow must cause an audible.

Prior to the test the pressure on both sides of the flow switch will be equal maintaining an. A liquid flow switch is applicable in chlorination of a swimming pool hot water heating air conditioning liquid transfer systems fire sprinkler systems and industrial laser cooling systems. The flow switch will indicate its location a fire indicator panel but may not call the fire brigade. All flow switches should be tested in accordance with tb203 3 2 as part of a mandatory quarterly service routine.

In the case of a fire for example a flow switch can trigger an. All three also come in explosion proof versions for hazardous environments. Nfpa 13 s requirements address each type of switch in turn. Water flow switches are implemented in water sprinkler systems.

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.