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Flow Sensor Switch Detector SMT Hall Effect 1 to 30L/Min

F31 liquid flow sensor switch uses SMT and glue to seal the Hall element so that it has a good performance in a humid environment. Which is suitable for boilers, water heaters, etc.

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F31 Flow Sensor Switch Description

The F31 flow sensor switch can detect the flow rotational speed and output the SWFM through the Hall sensor from the circuit board. It also has a wide working flow range that is from 1.0L/Min to 30.0L/Min. So, it covers many kinds of products, such as the boiler, water heaters, hanging furnaces, water dispensers, drinking fountains, and so on. Meanwhile, the F3 series use the latest sealing process to increase the working performance in a wet environment. This kind of sealed structure does not need to install the screw so it also has a higher bearing capacity. We also got the patents for the F3 series water flow sensors, which patent number is “201920158951.X”.

Besides, the F3 not only has a good electromagnetic compatibility characteristic but also has a wide working temperature range, please check the specification as following below. Because of the rational design, it has a few losses for the pressure when working. What’s more, the impeller can reduce the blocking happen and keep it clean.

F31 water flow sensor switch connection is through 2 pieces of G1/2 connector while the F32 has 1*G1/2 & 1*quick connector, and F33 has 2*quick connectors. Welcome to contact us to get the other senor’s information.

All in all, the F31 flow sensor switch is of high quality and has good performance in detecting, welcome to contact us to get more information. If you need to check more types of flow sensors, please click the link to check. Generally, the water heaters & boilers not only need the flow sensor switches but also need the air pressure switches and relief valves as well, which are also available from REGAL.


Flow Sensor Switch Specification

Model Number F31 Flow Sensor Switch
Terminal Type 3-pin standard connector & wire (standard 150mm  and it also can be customizable)
Interface type 2*G1/2
Operating flow interval 1 L/Min to 30 L/Min
Dielectric Strength 500VAC(<3mA)
Operating Voltage DC 4.75V to DC 5.25V
Operating Current 15mA

Low Output Duty Cycle

Overload Pressure 12Bar (@40℃)
Working Temperature -15 to 85℃
Service life with loading 200000 cycles
Protection Level IP20
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