IronAxis

IronAxis Industrial Supply

IronAxis is a U.S.-based B2B supplier of industrial equipment, instruments, machinery, food processing systems and new energy solutions for manufacturers, labs and engineering companies.

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Customized IP67 High Sensitivity Relay Output Water/Oil Thermal Flow Switch

Volke Automation Control Co., Ltd

FES thermal diffusion electronic flow switch can monitor the liquid flow in the pipeline in real time, provide switch output, and use 6 LEDs to display the fluid flow rate status in real time, which ca...

Energy Management & Monitoring Volke Automation Control Co., Ltd 24 Dec 2025 ( )

Get Your Quote Now : US$ 195~220/ Carton

FES thermal diffusion electronic flow switch can monitor the liquid flow in the pipeline in real time, provide switch output, and use 6 LEDs to display the fluid flow rate status in real time, which can realize the following monitoring functions: medium flow, reduce/increase flow rate; medium Presence/absence; medium flow/still; monitoring the fluid flow rate in the pipeline, monitoring the interruption of flow or preventing the idling of the pump. It is widely used in petrochemical, electric power, metallurgy, steel mills, papermaking, food processing, water treatment, battery factories and other industries.FES Electronic Flow Switch Features:1. Affordable, suitable for mass use on equipment, reducing costs.2. Replace the baffle type flow switch, with sensitive action and long service life.3. Can effectively prevent entanglement.4. Full waterproof shell design.5. It is suitable for a large range of pipe diameters, and the set point can be adjusted arbitrarily.6. The indicator light directly displays the flow change.       Conventional flow switches or flow indicators mostly use baffles or pistons, which rely on liquid flow to push the baffles or pistons to act. The water resistance is large, the flow loss is large, the accuracy is poor, and it is impossible to monitor small flow. The sealing part is sealed with metal bellows, which is resistant to pressure difference and prone to metal fatigue burst.working principle:       FES economical electronic flow switches are designed based on the principle of heat exchange. The probe has a built-in heating module and a heat-sensing module. The heat conduction of the flow switch is closely related to the flow rate of the medium. During measurement, the heat-generating module emits heat. If there is no medium flowing in the pipe, the heat received by the heat-sensing module is a fixed value. When there is a medium flowing, the heat received by the thermal module will change with the flow rate of the medium. The thermal module converts the temperature difference signal into an electrical signal, and then converts it into a corresponding standard analog signal or contact through the processor. Signal output, the flow switch displays and controls the flow rate of the medium through this signal.

Technical parameter:
Measuring rangewater: 0.03 ~3m/s; Oil: 0.0 3 ~3m/s;
Withstand voltage1.6 MPa
ConnectionThread G 1 / 2 ", G 1 / 4 ", other
Switching timeON: Typical ≥4 s (1 ~1 3s); O F F : Typical ≥ 4 s (1 ~ 1 5s)
Temperature change response  ≤1 2 s
Working voltageDC 2 4 V
Power consumption2 W
OutputRelay, N P N / P N P
Contact capacity2 A / 2 2 0 VAC, 3 A / 30VDC
Insulation resistance100 MΩ at 100V DC
Number of control contacts1 pair
Probe material304 stainless steel
Shell materialPP
Working temperature - 10oC- 60oC
Environmental conditions- 2 0 ~8 5oC,≤8 5 % RH
Protection classIP67

Our competitive brands are as follows: e+h,turck,ema,ifm,ege,afm,omega

We can replace the following models:

FCI-D03A4-NA-H1141/M12;FCI-D03A4-NA-H1141/M16;FCI-D04A4P-AP8X-H1141;FCI-D04A4P-ARX-H1140;FCI-D04A4P-LIX-H1141;FCI-D09A4-NA-H1141/M16;FCI-D10A4P-AP8X-H1141;FCI-D10A4P-ARX-H114;FCI-D10A4P-LIX-H1141;FCI-D10A4P-NA-H1141;FCI-D15A4P-AP8X-H1141;FCI-D15A4P-ARX-H1140;FCI-D15A4P-LIX-H1141;FCI-D20A4P-AP8X-H1141;FCI-D20A4P-ARX-H1140;FCI-D20A4P-LIX-H1141;FCI-TCD04A4P-AP8X-H1141;FCI-TCD04A4P-ARX-H1140;FCI-TCD04A4P-LIX-H1141FCS-50A4-AP8X-H1141/D014;FCS-50A4-NA/D014;FCS-68A4-NA/D003;FCS-68A4-NA/D011;FCS-G1/2A4-AN8X-H1141;FCS-G1/2A4-AP8X-H1141;FCS-G1/2A4-AP8X-H1141/L080;FCS-G1/2A4-NA;FCS-G1/2A4-NA/AL065;FCS-G1/2A4-NA/D100;FCS-G1/2A4-NA/L080;FCS-G1/2A4-NA/L120;FCS-G1/2A4-NAEX;FCS-G1/2A4-NAEX/D100;FCS-G1/2A4-NAEX/L065/D100;FCS-G1/2A4-NAEX0;FCS-G1/2A4-NAEX0/L065;FCS-G1/2A4-NAEX0-H1141;FCS-G1/2A4-NAEX-H1141;FCS-G1/2A4-NA-H1141;FCS-G1/2A4-NA-H1141/L080;FCS-G1/2A4-NA-H1141/L120;FCS-G1/2A4P-AP8X-H1141;FCS-G1/2A4P-AP8X-H1141/L080;FCS-G1/2A4P-LIX-H1141;FCS-G1/2A4P-LIX-H1141/D037;FCS-G1/2A4P-VRX/230VAC;FCS-G1/2A4P-VRX/24VDC;FCS-G1/4A4-AP8X-H1141;FCS-G1/4A4-ARX-H1140;FCS-G1/4A4P-AP8X-H1141;FCS-GL1/2A2-NA/A;FCS-GL1/2A2-NA-H1141/A;FCS-GL1/2A2P-AP8X-H1141/A;FCS-GL1/2A2P-LIX-H1141/A;FCS-GL1/2A2P-VRX/230VAC/A;FCS-GL1/2A2P-VRX/24VDC/A;FCS-GL1/2A4-AP8X-H1141;FCS-GL1/2A4-AP8X-H1141/D090;FCS-GL1/2A4-NA;FCS-GL1/2A4-NA/D100;FCS-GL1/2A4-NAEX;FCS-GL1/2A4-NAEX/A;FCS-GL1/2A4-NAEX/A/D100;FCS-GL1/2A4-NAEX/D100;FCS-GL1/2A4-NAEX0;FCS-GL1/2A4-NAEX0/A;FCS-GL1/2A4-NAEX0-H1141;FCS-GL1/2A4-NAEX0-H1141/A;FCS-GL1/2A4-NAEX-H1141;FCS-GL1/2A4-NAEX-H1141/A;FCS-GL1/2A4-NA-H1141;FCS-GL1/2A4P-AP8X-H1141;FCS-GL1/2A4P-LIX-H1141;FCS-GL1/2A4P-VRX/230VAC;FCS-GL1/2A4P-VRX/24VDC;FCS-K20-AP8X;FCS-K20-LIX;FCS-M18-AP8X;FCS-M18-AP8X/D041;FCS-M18-LIX;FCS-N1/2A4-AP8X-H1141;FCS-N1/2A4-NA;FCS-N1/2A4-NA/D100;FCS-N1/2A4-NAEX;FCS-N1/2A4-NAEX/D100;FCS-N1/2A4-NAEX0;FCS-N1/2A4-NAEX0-H1141;FCS-N1/2A4-NAEX-H1141;FCS-N1/2A4-NA-H1141;FCS-N1/2A4P-AP8X-H1141;FCS-N1/2A4P-AP8X-H1141/L120;FCS-N3/4A4-NA-H1141

FAQ:1.    Q: Are you manufacturer or trading company?        A: We are manufacturer which focuses on sensor for 10 years.2.    Q: What's your quality control system?        A: MC, ISO9001, CE Certificated.3.    Q: What is the warranty of your products?        A: Our warranty time is 18 months after shipment. 
4.     Q: What is lead time of your product?
         A: Normally, our factory lead time is within 10~15 working days for products without customization. You can also check lead time detail with our sales depending on different items. 
5.     Q: Do you provide customized products?
         A: Yes, we can laser mark your logo on products; OEM and ODM customization are welcomed. 
6.     Q: What is your MOQ?
        A: We have no MOQ limit, small quantity order is acceptable. 
7.      Q: What's the transport?                                                              
        A: Express such as DHL, FedEx, TNT, UPS for freight prepaid; and we can also use your own courier account to do the freight collect. For more goods we can arrange by air or by Sea. 
8.      Q: What is your terms of payment ?           A: We could accept T/T, Paypal, WU.
For more information, please contact us~

Technical Specifications

Item Specifications Remarks
Update Date Volke Automation Control Co., Ltd 2025
Lead time within 30 days Can be expedited
Material See product manual Request Inspection Report
Application Applicable to multiple industries Complies with standards
Keywords flow switch,Temperature flow sensor,flow sensor

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