Measuring flow in an existing pipeline does not always require cutting the pipe, stopping production or installing an inline meter. For temporary surveys, system balancing, maintenance checks and water-network investigations, a clamp-on instrument can provide the required flow information with much less disruption. The Portable Ultrasonic Flowmeter UFP-20 is a professional non-invasive flow measurement system designed to measure liquid flow from outside an existing pipe. Its ultrasonic transducers attach to the outer pipe surface, allowing technicians to measure flow velocity and calculate flow rate without opening the pipeline.

The UFP-20 uses the ultrasonic pulse transit-time difference method. It can work across a very broad pipe-size range, from approximately DN13 up to DN5000, depending on the selected transducers and application conditions. Because the sensors remain outside the pipe, the system creates no additional pressure loss, does not normally contact the liquid and can be installed temporarily for testing or monitoring.

Nassguard supplies the Portable Ultrasonic Flowmeter UFP-20 across Qatar and Doha, including Doha (Ad Dawhah), Al Rayyan, Al Wakrah, Al Khor, Al Shamal, Umm Salal, Al Daayen and Al Shahaniya for water utilities, industrial plants, HVAC contractors, facility-management teams, MEP companies and pipeline-maintenance applications.

What is a Portable Ultrasonic Flowmeter?

A Portable Ultrasonic Flowmeter is an electronic instrument that measures liquid velocity and flow rate inside a pipe using ultrasonic signals. Unlike an inline flow meter, a clamp-on unit usually eliminates the need to cut the pipeline or insert a sensor into the fluid. Instead, technicians attach ultrasonic transducers to the outside wall of the pipe. The UFP-20 sends ultrasonic pulses through the pipe wall and liquid. One signal travels with the flow direction, while another travels against it.

Liquid movement creates a very small difference in the travel time of these two signals. The flowmeter measures this time difference and uses it to calculate liquid velocity. After the technician enters the pipe dimensions, the instrument converts that velocity into a flow-rate value. This makes the Ultrasonic Flow Meter useful for temporary testing, troubleshooting and verification when permanent meter installation may not suit the application.

Key Features of UFP-20 Portable Ultrasonic Flowmeter

• Non-Invasive Measurement: Clamp-on transducers measure flow without cutting into the pipe.
• Wide Pipe Range: Supports approximately DN13 to DN5000, depending on transducer selection.
• Transit-Time Technology: Uses ultrasonic pulse transit-time difference measurement.
• No Pressure Loss: The transducers remain outside the liquid flow path.
• Two-Channel Measurement: Can measure flow on two separate pipelines with an additional transducer pair.
• Two-Path Measurement: Supports two-path measurement for suitable applications.
• Energy Meter Function: Optional Pt100 RTD inputs allow thermal-energy flow measurement.
• Echo Waveform Monitoring: Allows technicians to visually check the quality of the received ultrasonic signal.
• USB Data Transfer: Logged information can be exported through USB memory in CSV format.
• 4–20 mA Output: Provides an analogue output for connection to compatible recording or monitoring equipment.
• Thickness Measurement Function: Supports pipe-wall thickness measurement over a specified range.
• Sonic Velocity Measurement: Helps determine the acoustic velocity of suitable materials or liquids.
• IP65 Protection: Main unit and transducers are manufacturer-listed to IP65.
• Portable Battery Operation: Provides approximately 8 hours of operation on its internal battery.

Uses of Portable Ultrasonic Flowmeter UFP-20

• Water Flow Measurement- The Water Flow Measurement Device can measure flow in suitable water-distribution and process pipelines without opening the system.
• Temporary Flow Surveys- Technicians can install the UFP-20 for temporary measurements during troubleshooting, commissioning or system analysis.
• Pump Performance Testing- Flow measurements can help engineers compare actual pump output with expected system performance.
• HVAC System Balancing- The Clamp On Flow Meter can measure chilled-water and suitable heating-water flows during HVAC commissioning and balancing.
• Pipeline Troubleshooting- Maintenance teams can check whether a suspected pipe section is carrying the expected amount of liquid.
• Flow Verification- The UFP-20 can provide an independent portable measurement when engineers need to compare readings from an existing permanent meter.
• Water Network Investigation- Utility teams can use the Portable Flow Meter to study flow distribution and support water-loss investigations.
• Industrial Process Surveys- Factories can measure suitable process liquids temporarily without installing an intrusive sensor.
• Energy Measurement- With the appropriate Pt100 RTD inputs, the instrument can calculate thermal-energy flow for suitable heating and cooling systems.
• Bidirectional Flow Checking- The system can identify flow direction and measure suitable bidirectional flows, helping technicians investigate complex piping networks.

Applications Across Qatar and Doha

The Portable Ultrasonic Flowmeter can support water, HVAC, industrial and utility projects throughout Qatar.

• Doha (Ad Dawhah)- In Doha, the UFP-20 can support chilled-water balancing, building-services commissioning, water-distribution surveys, commercial facility maintenance and industrial flow checks.
• Al Rayyan- Facility managers and contractors in Al Rayyan can use the unit to verify flow in HVAC, water-supply and utility pipelines.
• Al Wakrah- The Ultrasonic Flow Meter can assist infrastructure, commercial and industrial projects in Al Wakrah where temporary non-invasive flow measurement is required.
• Al Khor- Industrial facilities around Al Khor can use the UFP-20 for process-water measurements, cooling-water systems and pipeline performance investigations.
• Al Shamal- Utility and maintenance teams in Al Shamal can use portable flow measurement during water-network surveys and infrastructure maintenance.
• Umm Salal- In Umm Salal, the flowmeter can support building-services commissioning, water-system checks and temporary pipeline testing.
• Al Daayen- Growing developments across Al Daayen can use the UFP-20 during MEP commissioning, HVAC balancing and water-distribution analysis.
• Al Shahaniya- Industrial, municipal and commercial facilities in Al Shahaniya can use the system for non-contact pipeline flow investigations.

Nassguard supplies the Portable Ultrasonic Flowmeter UFP-20 throughout Qatar, supporting engineering and maintenance teams in both central Doha and surrounding municipalities.

Technical Specifications

These values come from the manufacturer’s UFP-20 technical catalogue. The exact usable range depends on pipe material, diameter, wall thickness, transducer selection, liquid characteristics and ultrasonic signal quality..

How Does the UFP-20 Work?

The UFP-20 works without inserting a measuring element into the pipe. First, the technician enters information such as pipe diameter, pipe material, wall thickness and liquid type. Next, the correct transducer type is selected according to pipe diameter and operating temperature. The transducers are attached to the outside of the pipe using the specified mounting arrangement and acoustic coupling material. The instrument sends an ultrasonic signal through the pipe wall and into the liquid. One ultrasonic pulse travels downstream with the liquid flow.

Another travels upstream against it. Because the moving liquid changes the travel time of each signal slightly, the UFP-20 can calculate flow velocity from the difference. The instrument then combines flow velocity with the internal pipe dimensions to determine the flow rate. Since only ultrasonic energy passes through the pipe wall, the process creates no obstruction inside the pipeline. The manufacturer describes this clamp-on principle as allowing measurement without interrupting normal plant operation.

Certifications, Standards and Compliance

• IEC 60529 – IP65 Protection
• IP65 – Main Unit and Transducers
• ISO 4064 – Water Metering Reference
• OIML R49 – Water Meter Metrological Requirements

Why Choose UFP-20 Portable Ultrasonic Flowmeter from Nassguard?

• Non-Invasive Measurement: No need to insert sensors into the liquid.
• No Pressure Loss: Nothing obstructs the internal pipe flow.
• Wide Pipe Range: Measures approximately DN13 to DN5000 with suitable transducers.
• Portable Operation: Ideal for temporary engineering measurements.
• High Measurement Capability: Provides diameter-dependent accuracy down to approximately ±1% of reading under suitable conditions.
• Two-Channel Capability: Compare two pipeline measurements with additional sensors.
• Energy Measurement: Supports Pt100 inputs for thermal-energy calculations.
• Echo Monitoring: Helps technicians confirm signal quality.
• Thickness Measurement: Supports pipe-wall assessment.
• USB Data Export: Saves measurements for reports and analysis.
• IP65 Protection: Main unit and sensors support demanding field use.
• Qatar-Wide Supply: Nassguard supplies UFP-20 across Doha, Al Rayyan, Al Wakrah, Al Khor, Al Shamal, Umm Salal, Al Daayen and Al Shahaniya.

Frequently Asked Questions

1. What is the UFP-20 Portable Ultrasonic Flowmeter used for?

The UFP-20 measures liquid flow velocity and flow rate through suitable pipes using external clamp-on ultrasonic transducers.

2. Does the pipe need to be cut to install the UFP-20?

No. Its clamp-on transducers attach to the outside surface of the pipeline, so temporary measurement can normally be performed without cutting the pipe.

3. What pipe sizes can the UFP-20 measure?

The manufacturer lists an overall range of approximately DN13 to DN5000, depending on the transducer selected.

4. Can UFP-20 measure chilled-water flow?

Yes. It can measure suitable uniform liquids, and its Pt100 temperature-input option also supports thermal-energy measurement for suitable chilled-water systems.

5. Does the UFP-20 support data logging?

Yes. Logged measurements can be transferred to USB memory in CSV format.

6. Is the UFP-20 waterproof?

The manufacturer lists both the main unit and transducers to IP65. This supports outdoor field use under the rated conditions but does not mean the unit should be submerged.

7. Where can I buy a Portable Ultrasonic Flowmeter in Qatar?

Nassguard supplies the Portable Ultrasonic Flowmeter UFP-20 across Qatar and Doha, including Al Rayyan, Al Wakrah, Al Khor, Al Shamal, Umm Salal, Al Daayen and Al Shahaniya.

Conclusion

The Portable Ultrasonic Flowmeter UFP-20 provides engineers and maintenance teams with a practical way to measure liquid flow without cutting into an existing pipeline. Its external ultrasonic transducers send and receive signals through the pipe wall, allowing flow velocity and flow rate to be calculated using the transit-time difference method. Because the transducers remain outside the pipe, the UFP-20 introduces no additional pressure loss and can often be installed without interrupting normal system operation. The meter supports a very wide pipe-size range from approximately DN13 to DN5000, depending on the selected sensor. Small, medium and large transducers are available for different diameter and temperature ranges. Its measurement capability makes it suitable for water networks, chilled-water systems, industrial process pipelines, HVAC commissioning, pump testing, plant maintenance and temporary flow surveys.

The 2-channel and 2-path functions add flexibility for comparing pipelines or improving suitable measurement arrangements. Furthermore, optional Pt100 RTD inputs support thermal-energy calculations, making the unit useful for chilled-water and energy-management applications. The instrument also provides an echo waveform monitor, self-diagnostics, pipe-thickness measurement, sonic-velocity measurement and USB data transfer. For utility companies, MEP contractors, HVAC specialists, industrial plants and maintenance teams looking for an Ultrasonic Flow Meter, Portable Flow Meter, Clamp On Flow Meter, Non Contact Flow Meter or Water Flow Measurement Device, the UFP-20 provides a versatile professional measurement solution.

Nassguard supplies the Portable Ultrasonic Flowmeter UFP-20 throughout Qatar and Doha, including Doha (Ad Dawhah), Al Rayyan, Al Wakrah, Al Khor, Al Shamal, Umm Salal, Al Daayen and Al Shahaniya.