G1/2″ 0.5~5L/min DN15 piston normally open magnetic plastic flow switch for water heater/dispenser

DN15 piston flow switch

Quick Details

Media Type: Liquid
Operating Temperature: 0~+100°C
Flow Rate: 5L/min
Color: Black
Body Material: PA66+30%Glass
Size: L53xW22xH26mm
Start-up Volume(min): 0.5L/min
Operate Volume(Max): 5L/min
Mounting Position: Discretional installation
Thread size: Male 1/2"-1/2"

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

Contact Form

NOMounting PositionDiscretional Installation
Max Contact  Rating10WSuffering Pressure1.5MPa
Max Switch Voltage100VStart-up Volume(min)0.5L/min
Max Switch Current0.5AOperate Volume(max)5L/min
Max Contact Resistance100m OhmOperate Temperature0 °C ~ +100°C
Min Insulation Resistance100m OhmStandard Operate Pressure0.01-0.4MPa
Electrical Life1x 107(5Vdc,10mA)



1.Question: What are your main products?
Answer: We mainly focus on water float switch, flow sensor and door contact switch. We ensure a reasonable price and high quality products.

2.Question: Where is your company?
Answer: All of our products are safely manufactured according to UL, ISO9001 and RoHs principles, and carefully checked before packed.

3.Question: What are the available materials?
Answer: Plastic PP, Brass

4.Question: Are these materials safe for drinking water?
Answer: Sure! All of our materials are made according the RoHs principles, they are nontoxic and environmental friendly.

5.. Question: Is the magnetic water flow switch made normally open or closed?
Answer: Most clients take our normally open model, but no worries we can make normally closed one if you need. To save from trouble, please read our datasheet before ordering.

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