Revolutionize Industrial Flow Measurement: Zero-Intrusion Clamp-On Tech for DN15-DN65 Pipes

How RBFM-K’s Non-Invasive BTU Sensor Cuts Costs While Boosting Accuracy 

 

 The Hidden Cost of Traditional Flow Meters 

For decades, industrial flow monitoring meant pipe cutting, process shutdowns, and invasive installations. The result? Sky-high ownership costs and compromised accuracy. But what if you could achieve ±1% precision without drilling a single hole? 

 Enter clamp-on ultrasonic technology – and RB Flow Meters’ RBFM-K BTU Sensor is rewriting the rules for pipelines from DN15 to DN65. 

 


 Why Engineers Are Switching to RBFM-K 

✅ True Non-Invasive Performance 

- DN15-DN65 pipe adaptability – from branch lines to main circuits 

- Zero pipe modifications – install under pressure (tested to 1.6MPa) 

- 5-minute mounting – magnetic brackets + IP68 sensors withstand submersion 

 

 ✅ Laboratory-Grade Accuracy 

- ±1% measurement error – even for thermal oils/chilled water 

- PT1000 temperature sensors – direct BTU/kWh energy calculations 

- 0.3-5.0 m/s velocity range – captures low-flow dynamics 

 

✅ Industrial Toughness 

- IP65 armour – operates underwater (3m depth, 30 mins) 

- Chemical resistance – validated for acids, solvents, glycol mixes 

- -30°C to 130°C fluid temperature tolerance 


Real-World Impact: A Tianjin HVAC Case Study 

> “Monitoring 12 DN40 chilled water lines since 2022. Zero maintenance, ±1% stability, 23% energy savings from BTU analytics.” 

> Facility Manager, Tier-1 HVAC Plant 

 

 How It Works: The Science Simplified 

1. Clamp sensors externally on pipes (DN15-DN65) 

2. Ultrasound pulses traverse fluid – measuring transit time difference 

3. PT1000 probes detect pipe surface temperature 

4. Onboard processor calculates: 

   - Volumetric flow (m³/h) 

   - Thermal energy (BTU/kWh) 

   - Flow velocity (m/s) 

5. RS485/4-20mA outputs feed data to DCS/PLC systems 

 [http://www.rbflowmeters.com/Flow_meter-Ultrasonic/Micro_non_contact_flow_btu_sensor.html) 

Installation time: <10 minutes. Tools: wrench, coupling gel. 


 Applications Where RBFM-K Excels 




 

 


Total Cost of Ownership: 73% Less Than Insertion Meters 

A 2024 benchmark study revealed: 

- Installation savings: $2,800 (no shutdowns/pipeline modifications) 

- Calibration costs: Reduced 90% (5-year stability) 

- Power consumption: 1.2W vs. 8W for turbine meters 

 

 Technical Specifications 


 






Get Started with RBFM-K 

1. Download Datasheet: 

[RBFM-K BTU Sensor Specifications](http://www.rbflowmeters.com/Flow_meter-Ultrasonic/Micro_non_contact_flow_btu_sensor.html) 

 

2. Request Demo Unit: 

Email： info@rbflowmeter.com (Specify DN size + fluid) 

 

Keywords for SEO: 

Clamp-on flow meter, DN40 BTU sensor, Non-invasive flow measurement, Industrial energy monitoring, Chilled water flow meter, RS485 Modbus flow sensor, IP68 ultrasonic meter, Low TCO flow technology 

 

Long-Tail Keywords: 

How to install clamp-on sensor on DN50 pipe | ±1% accuracy flow meter for thermal oil | Glycol flow monitoring without shutdown | Cost comparison: insertion vs clamp-on meters | HVACR energy savings with BTU metering 

 

"The future of flow measurement isn’t invasive – it’s intelligent, non-disruptive, and relentlessly accurate." 

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