Flow switches that prove water flow in heating and cooling systems. The collection includes the Caleffi 626600A 1" male NPT UL listed flow switch and the Taco IFS01BF-1 industrial flow switch with brass bushing, flexible paddle and NEMA 1 enclosure.
A flow switch confirms flow before a boiler, chiller or heater fires or runs. Match the thread size to the tee, and trim the paddle to the pipe size following the instructions. Check the electrical rating, enclosure type and the flow rate at which the switch activates.