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Johnson controls / penn flow switch #F61LB-1
Johnson Controls/Penn Flow Switch #F61LB-1
The F61 Series Flow Switches are Single- Pole, Double-Throw (SPDT) flow switches used on fluid lines carrying water, ethylene glycol, or other fluids not classified as hazardous. They can be wired to energize one device and de-energize another device powered from the same source when fluid flow either exceeds or drops below the set flow rate.
* Enclosure: NEMA 1, for indoor applications where they are protected from weather and splashing water. Use these models with pipes carrying fluids at temperatures in the range of 32 to 250 F (0 to 121 C) where fluid temperatures are above ambient dew point.
* Mount the F61 flow switch in a horizontal pipeline or a vertical pipeline with upward fluid flow. Do not use in a vertical pipeline with downward flow. When mounted in a vertical pipe with upward flow, the switch trips at a slightly higher flow due to the effect of gravity on the switch mechanism.
* Mount the F61 flow switch in a section of pipe where there is a straight run of at least five pipe diameters on each side of the flow switch from the nearest elbow, valve, or other pipe restriction.
* Fluid pressure up to 150 psig (1034 kPa)
* The flow switch responds to pressure exerted on the fluid paddle by the flowing fluid. A range adjustment screw adjusts the rate of flow required to actuate the switch.
