info@hbmeter.cc
+86 152 3780 0315

Clamp-on Ultrasonic Flowmeter

Non-invasive monitoring for water systems, HVAC, industrial processes, and energy management

Permanent non-invasive flow measurement for continuous monitoring—clamp-on transducers install externally without pipe cutting, welding, or process shutdown, while wall-mounted converter provides ±0.5% to ±1% accuracy with 4-20mA outputs and SCADA integration for water distribution, HVAC systems, and industrial process applications.
  • Pipe Size: DN15 – DN6000 (½" – 240")
  • Flow Accuracy: ±0.5% to ±1% of reading
  • Velocity Range: 0.01 – 25 m/s
  • Communication: 4-20mA, RS485, HART, Profibus
  • Protection: IP65 converter, IP67 transducers
  • Installation: Zero downtime, no pipe modification
Request QuotationTechnical Consultation

Install Without Process Shutdown or Production Loss

External transducers clamp onto existing pipes while system operates. No hot work permits, no pipe cutting, no product drainage. Complete installation in 2-4 hours versus 2-3 days for flanged inline meters requiring shutdown, welding, and pressure testing.

  • Zero downtime installation—maintain production during meter installation

Measure Flow in Any Pipe Material From ½” to 240″

Works on carbon steel, stainless steel, copper, PVC, HDPE, concrete-lined, and FRP pipes. Single meter design handles pipe size changes through transducer selection—upgrade from 2″ to 12″ piping without replacing converter. Eliminates inventory of multiple meter sizes

  • Any pipe material, any size—one solution for entire facility

No Wear Parts, No Pressure Drop, No Calibration Drift

Non-contact measurement with zero moving parts. No bearing wear, no impeller fouling, no orifice plate replacement. Accuracy remains stable for 10-15 years without recalibration. Pressure drop eliminated—reduces pumping energy costs in long pipeline runs.

  • 10-15 year accuracy stability—no recalibration required

Connect Seamlessly to SCADA, BMS, and Control Systems

Standard 4-20mA, pulse, and RS485 outputs integrate with existing automation infrastructure. Optional HART, Profibus, Modbus TCP, or Foundation Fieldbus for advanced networks. Real-time flow data enables process control, energy monitoring, and automated reporting.

  • Complete SCADA integration—real-time data to control systems
Parameter
Specification
Measurement Principle
Ultrasonic transit-time (clamp-on transducers)
Application
Permanent flow monitoring, custody transfer, process control, energy management
Pipe Size Range
DN15 – DN6000 (½" – 240") with appropriate transducers
Flow Accuracy
±0.5% of reading (custody transfer grade) | ±1% of reading (standard)
Repeatability
±0.15% of reading
Velocity Range
0.01 – 25 m/s (bidirectional)
Measured Fluids
Water, seawater, glycol, oils, chemicals (liquids with <10% gas/solids)
Fluid Temperature
-40°C to +200°C (transducer dependent)
Ambient Temperature
-25°C to +60°C (converter)
Pipe Materials
Carbon steel, stainless steel, copper, brass, PVC, CPVC, HDPE, PP, FRP, concrete-lined, ductile iron
Pipe Wall Thickness
1mm – 65mm (material and frequency dependent)
Transducer Types
Small (DN15-100), Standard (DN50-700), Medium (DN300-3000), Large (DN1000-6000), High-temp (up to 200°C)
Power Supply
85-265V AC (50/60Hz) standard | 12-36V DC optional
Output Signals
4-20mA (isolated, 2 channels), Pulse (OCT), Frequency, Relay (2-4 alarm contacts)
Communication Protocols
RS485 Modbus RTU (standard), HART, Profibus DP, Modbus TCP, Foundation Fieldbus, EtherNet/IP (optional)
Display
128×64 backlit LCD: flow rate, velocity, totals, diagnostics, trending
Displayed Parameters
Instantaneous flow, accumulated totals (+/-), velocity, signal quality, transit time, diagnostics
Data Logging
Internal memory: 10,000+ records | SD card: unlimited storage (optional)
Transducer Cable Length
Standard 10m, optional 30m, 50m, 100m
Quality Certifications
CE, SIL-3 Certification

  • Municipal Water Distribution & Transmission

    • District metered area (DMA) boundaries
    • Water loss detection programs
    • Bulk water custody transfer
    • Production well monitoring
    • Treatment plant process control
    • Emergency temporary metering backup

  • Chemical & Process Industries

    • Cooling water circuits
    • Process fluid measurement
    • Chemical feed verification
    • Reactor cooling monitoring
    • Heat exchanger performance
    • Wastewater discharge compliance

  • Power Plants & Utilities

    • Condenser cooling water flow
    • Boiler feed water measurement
    • Steam condensate return
    • Circulating water pumps
    • District heating/cooling distribution
    • Thermal efficiency monitoring

  • Petroleum & Petrochemical

    • Crude oil transfer measurement
    • Product pipeline monitoring
    • Refinery cooling systems
    • Custody transfer applications
    • Storage tank filling

Why Choose Clamp-On Over Inline Installation

vs. Flanged Electromagnetic Flowmeters:

 

✓ No process shutdown for installation

✓ No pressure drop (reduces pumping costs)

✓ No gaskets, O-rings, or wetted parts to fail

✓ Move meter to different location without downtime

✓ 60-70% faster installation

✗ Slightly lower accuracy (±0.5-1% vs ±0.2-0.5%)

 

vs. Turbine Flowmeters:

 

✓ No moving parts requiring maintenance

✓ No bearing wear or calibration drift

✓ Bidirectional measurement capability

✓ No flow obstruction

✓ Works in dirty fluids

✗ Not suitable for ultra-pure water (<20 μS/cm)

 

vs. Vortex Flowmeters:

 

✓ Lower minimum flow rate (0.01 m/s vs 0.3 m/s)

✓ No flow obstruction or pressure drop

✓ Immune to vibration interference

✓ Works on any pipe material

✗ Requires adequate pipe wall access

 

Best Use Cases for Clamp-On:

 

  • Existing piping cannot be modified
  • Process shutdown cost exceeds meter cost
  • Multiple pipe materials/sizes in facility
  • Temporary installation may become permanent
  • Rental before permanent meter purchase
  • Backup verification for custody transfer meters

Discuss Your Application With Our Flow Specialists

Accurate measurement starts here. Specify your pipe size and application today—receive custom system design and pricing in 24 hours.
info@hbmeter.cc
(+86) 152-3780-0315
1 Jingsan North Road, Xiangfu District, Kaifeng, Henan 475004 China

About HBmeter

AFT Instruments is a high-tech manufacturer delivering precision flow instrumentation for water, chemical, power, industrial automation, and process industries.
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info@hbmeter.cc
(+86) 152-3780-0315
(+86) 152-3780-0315

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