When would you use a flow switch?
Flow switches might be used to monitor the flow rate of a liquid, trigger an alarm if the flow is too high or too low or even protect a pump. The flow sensor will usually send an electrical signal to a PLC or other electronic controller.
What is the difference between pressure switch and flow switch?
Pressure Switches are activated when you reach a certain pressure: between 500-700 PSI. When the pressure meets this threshold, the switch is used to activate the burner for hot water. Flow Switches are activated by the recognition of water flow. The pressure is usually lighter, lower than 500 PSI.
Can you bypass a flow switch?
Most pool heaers have a bypass valve to divert water around the heater when it is not needed. Turn the valve lever clockwise to bypass the heater until you can replace the flow sensor.
How does a flow switch work in a hot tub?
Hot tub flow switches and pressure switches monitor the flow of water through your tub and act as a safety device, turning the heater off if the water flow is interrupted. This safety mechanism is built into hot tubs to prevent damage to your heater and other equipment.
How far should a flow switch be mounted from the nearest fitting?
Mount the F240EA Pneumatic Liquid Flow Switch in a section of pipe where there is a straight run of at least 5 pipe diameters from the nearest elbow, valve, or other pipe restriction (Figure 7). When mounting the flow switch on horizontal pipe, mount the flow switch within 60 degrees of vertical. See Figure 8.
Is a limit switch and pressure switch the same?
Furnace Pressure Switch. Furnace limit switches may be mistaken for furnace pressure switches, but the two are not interchangeable. Furnace limit switches are similar but different in that they are more visible to homeowners and deal primarily with temperature control.
Is pressure sensor same as pressure switch?
Pressure switches are used in systems to ensure the safety of the machine and its operators while sensors simply relay a pressure readout to a remote location.