Dwyer Instruments FS-2 1" MNPT Paddle Flow Switch

The Dwyer Instruments FS-2 Paddle Flow Switch is a practical measuring product for detecting the flow of liquid in HVAC systems and other systems. This paddle flow switch has a 1” MNPT connection size and works with a pivoting paddle which is turned by the flow of the liquid. The paddle drops when the flow reaches a certain value and when it does, it turns on a switch which can give alarms or control other equipment to ensure that the system is working properly and that it is not damaged by low flow conditions. The is especially useful in HVAC systems, for instance, chillers and cooling towers in ensuring appropriate movement of the fluids concerned.