Stainless Steel Water Flow Switch Air Flow Sensor AC220V Power Supply Fire Fighting Flow Switches

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Price:$60.00 - $86.00
Price in USD:Details


Product Overview


Stainless Steel Water Flow Switch Air Flow Sensor AC220V Power Supply Fire Fighting Flow Switches

Product Description

Product brief introduction

Thermal flow switch is based on the principle of heat exchange design, probe the built-in heating module as well as the thermal module, heat dissipation of heating module and the flow velocity is closely related to the body. If there is no medium flow in the pipe ,thermal circuit receives a fixed value, when the fluid flows through the probe, thermal circuit receives the signal changes over medium velocity, thermal circuit will convert the temperature difference signals of heating module and thermal module into electrical signals, the processor will convert it into PNP/ NPN/ relay signal output.



LED indicate the velocity

No movable parts, free maintenance

Various length of sensors can be chose

Easy installation

One type for various pipe diameter

Continuously adjustable switch value

Almost no pressure loss

Overall protection grade IP67


Water flow sensor technical parameter

Measure rangeWater:3~300cm/s ;  Air:200~300cm/s ; Oil:3~300cm/s
Settling time3 minutes
Media temperature-20 to 80℃
ThreadG1/2 ,G1/4 Male thread /M18 Female thread
Output signalPNP / NPN / Relay 
Power24VDC , 110VAC , 220VAC
Sensor length15mm , 20mm , 30mm , 40mm , 60mm
Consumption current<60mA      
Response time2(2-10)s
Max.temperature gradient of medium300K/min
ProtectReverse / Short / Overload
Protection gradeIp67
Power connectorM12 connector
MaterialSensor :  316L    Body : 316L

Current : 250mA    

Relay : 30VDC/5A ,110VAC/5A,  220VAC/5A


Detailed Images


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Company Information





Gas liquid dual use ,it can be used for gas and hydraulic pressure system, circulating water, monitoring of the cutting fluid and lubricant, as well as Idling of pump protection,iron and steel ,metallurgy ,pharmaceutical ,chemical industry, etc.


Q:  Are you the final manufacturer?

A: Yes, We are manufacturer 


Q: Do you offer the OEM order ?

A: Yes, we can offer OEM service and label according to your requirements


Q: How to make payment?

A: We accept T/T , Credit card 


Q: Could we visit your factory?

A: Yes, Sincerely invite you to visit our factory


Q:Do you have any discount?

A:Yes, if you buy large quantity, please contact us or send email, we will give you a big discount


Q: What is your delivery time?

A: It is about 5-7 working days since the payment confirmed . If the quantity more than 100pcs , it will need extra 3-5 working days


Q: How long is the warranty of your products ?

A: 2 years warranty

Contact us


If you have any question, please feel free to contact us.We are sincerely looking forward to have business with you.

0.0459 s.