Normally closed type water flow sensor switch,Connect on when water stops,Disconnect when water flows

Working Principle:
When no water flows(stops flowing), the magnetic floating core inside the switch cooperates with the dry reed switch on the brass shell to output the switch contact signal (1/0) ; when there is a certain water flow passing, the floating core inside the switch is flushed away by the momentum of the water flow, so that the magnetism is separated from the reed rod to disconnect the switch signal.
Reset method: use the repulsive force between the magnetism at both ends of the plastic core inside the switch to reset.

Switch parameters:

1. Control voltage: DC: 0~250V, AC: 0~220V

2. Load current: up to 0.3A under DC, up to 50mA under AC

3. The total length of the switch: 60mm

4. Normal Connection: 1/2″ to 1/2″ (DN15) male thread.
(For other specification,please send emal to consult)

5. Starting flow: 1-1.5L/min

6. Maximum flow rate: 18L/min

7. Maximum pressure resistance: 1.7MPa

8. Working temperature: -20—60℃

9. Installation method: can be installed at will, no direction is limited

To control water pumps, alarms, solenoid valves, water heaters, contactors, etc., when the current exceeds the limit of the switch, it must be used with an intermediate relay similiar as below picture. Cannot be directly loaded!

• The sensor switch is available for retail and wholesale;
• The place of origin is in China,when you buy one or two,please consider freight(by air or by sea) into the cost;
• Accept bulk order with Container delivery;
• Please contact us online (click here) Or send inquiry message to our email:  sale@smartclima.com