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Product Name:Flow Switch FS-4050-G3/4    

Working theory:


The magnetic water flow switch is a device used to sense the water flow rate and switch on/off the flow in the pipe. There is a magnetic element in the flow switch. When liquid flow rate reaches the specified value, the magnetic element will be pushed closed to the sensor inside the switch, connect the circuit, and get signal transmitted.


Product Application

This magnetic water flow switch  can be used to monitor liquid flow rate in water machine, water heater, coffee machine, vending machine, water meter, medical testing machine and the like. They are widely applied in industrial equipment, agricultural equipment and household electrical appliances in the future.


Product Specification


Electrical Characteristic

Technical Characteristic

Contact Form


Mounting Position

Vertical or Horizontal

Max Contact  Rating


Suffering Pressure


Max Switch Voltage


Start-up Volume(min)


Max Switch Current


Operate Volume(max)


Max Contact Resistance

200m Ohm

Operate Temperature 

-0 °C ~ +100°C

Min Insulation Resistance

100m Ohm

Standard Operate Pressure


Electrical Life

1x 107(5Vdc,10mA) 



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