GE-324 Thermal Flow Switches

Product introduction

GE-324 Thermal Flow Switch is used to measure and monitor the liquid flow state, with LED to display the flow condition and sent alarm signal. The flow set point is adjustable by the user directly, No pressure loss, and stabitly with sensitive performance. It have a stainless shell, could work the the anti explosion proof environment.

1. Work Voltage: 220VAC 110VAC 24VDC
2. Max Pressure: 10 Mpa or More
3. Flow Media: Water, Oil, Air, or Gas
4. Pipe Size: DN10~DN3000
5. Working Temperature: -20C ~ 70C
6. Output: 3 wire NPN; 3 wire PNP; Replay;, ( 4~20mA need customized)
7. Connection: BSP1/2", NPT1/2, NPT3/4, or others
8. Protect Grade: IP67
9. Probe Material: 316 Stainless Steel or Hastelloy Alloy


The Flow Switches feature thermal dispersion technology in which the temperature difference is greatest in a no-flow condition and decreases as flow increases, cooling the heated RTD. Changes in flow velocity directly affect the extent to which heat dissipates and, in turn, the magnitude of the temperature difference between the RTDs.

An electronic control circuit converts the RTD temperature difference into a DC voltage signal. Both of these signals are provided at output terminals and are used to drive two adjustable-setpoint alarm circuits. Both alarms are independently field configurable for flow, liquid level/interface or temperature operation.