The Johnson Controls F61TB-9100 flow switch
The F61 Series Sensitive Flow Switches have 1/2 in. Female NPTF or 3/4 in. Female NPTF inlet and outlet connections.
Use F61 Sensitive Flow Switches in applications where flow rates are low, such as:
- water purification and treatment systems
- booster pumps
- cooling systems for electronic tubes, bearings, and compressors
- rapid recovery water heaters (starting the water heater when water is withdrawn)
- control of food waste disposal units (starting motor when a predetermined amount of water is flowing through the unit and stops when the flow decreases to a predetermined rate)
- switch to shut down the refrigeration compressor on a fluid chiller system if flow stops, reducing chances of chiller freeze-ups
Standard Flow Switches
Use F61 Series Standard Flow Switches in applications with fluid pressures up to 150 psig (1034 kPa). A typical application for a standard F61 flow switch is to shut down the refrigeration compressor on a fluid chiller system if flow stops, reducing chances of chiller freeze-ups.