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Non-Invasive Liquid Flow Measurement Without Pipe Cutting

Install Outside the Pipe. Measure Flow Instantly.

  • Non-Intrusive Clamp-on Installation

  • No Pipe Cutting or Process Shutdown

  • No Moving Parts, No Pressure Loss

  • Suitable for Metal and Plastic Pipes

  • Easy Setup via Menu Configuration

  • Accurate Measurement for Clean Liquids

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FK-X3 Clamp-on Ultrasonic Flow Meter

  • Product overview

The Clamp-on Ultrasonic Flow Meter is designed for accurate flow measurement of various liquids inside pipelines without cutting or modifying the pipe.

The flowmeter is installed directly on the outer surface of the pipe, enabling non-invasive flow monitoring and real-time measurement in industrial production processes. It can output digital signals and analog signals for process monitoring, data acquisition, and automatic control.

With its simple installation and reliable measurement performance, the device allows users to quickly deploy flow monitoring solutions without interrupting production.

The product is widely used by customers in industries such as semiconductor manufacturing, pharmaceutical and medical production, chemical processing, precision cleaning equipment, beverage production, and food processing.

 

  • Key Features

Non-Intrusive Clamp-on Installation

The flowmeter is mounted externally on the pipe surface without cutting the pipeline or interrupting production.

This non-invasive installation method provides several advantages:

  • No pipe modification required

  • No risk of leakage

  • No production shutdown during installation

  • Fast deployment for existing pipelines

FK-X3 Clamp-on Ultrasonic Flow Meter

 

  • Why Choose Clamp-on Ultrasonic Flow Meter

  • No pipe cutting or modification required

  • Installation without production shutdown

  • No pressure loss or moving parts

  • Easy operation through menu configuration

  • Suitable for multiple liquids and pipe materials

  • Reliable solution for industrial flow monitoring

 

  • Measuring principle

The clamp-on ultrasonic flow meter measures liquid flow inside pipelines using ultrasonic technology.

Ultrasonic sensors installed on the outside of the pipe transmit and receive ultrasonic signals through the pipe wall and the flowing liquid. The flow velocity is calculated based on the characteristics of ultrasonic signal transmission through the flowing medium.

The measurement result is converted into electrical output signals, allowing integration with industrial monitoring and control systems.

 

  • Compatible Pipe Materials

The clamp-on ultrasonic flow meter is suitable for pipelines made of different acoustic transmission materials.

Supported pipe materials include:

  • Metal pipes

  • Plastic pipes

Through simple menu configuration, one flow meter can be used to measure both metal and plastic pipelines

 

  • Suitable Media

The flowmeter is suitable for measuring single-phase clean liquids.

Typical applications include:

  • Tap water

  • Purified water

  • Ultra-pure water

With the expansion of application industries, the meter is also used to measure:

  • Acids

  • Alkalis

  • Organic liquids

  • Chemical solvents

  • Alcohol

  • Beverage liquids

Field testing shows that customers are able to successfully measure a wide variety of liquids with different viscosities.

 

  • Conditions for Measurable Liquids

To ensure reliable measurement, the liquid should meet the following conditions:

  • The flowing liquid should not generate bubbles or cavitation during operation

  • Pipeline pressure should be maintained around 0.3 MPa

  • Flow velocity should remain relatively stable within the pipe

Many additional liquids have been successfully measured in real applications. For specific media compatibility, consultation is recommended.

  • Technical Specifications

Product Name Clamp-on Ultrasonic Flowmeter
Measurement Accuracy ±2.0% (0.3 m/s – 5.0 m/s)
Flow Velocity Range 0.1 m/s – 5.0 m/s
Linearity ±2.0% (0.3 m/s – 5.0 m/s)
Repeatability 0.8%
Response Time 500 ms
Display 1.3" 128 × 64 OLED display, reversible screen for easy reading
Menu Language English
Display Units Metric and imperial units selectable: m³/h, LPM, GPM, LPH (default: m³/h)
Display Data Instantaneous flow rate, instantaneous velocity, net total flow, batch total, daily/monthly/yearly total
Totalizer 7-digit flow totalizer
Data Storage 10 years / 64 months / 64 days
Operation Keys 4 touch buttons
RTC Battery CR1220
Power Supply 24 VDC @ 3 W
Analog Output 4–20 mA, max load 600 Ω
Communication Interface RS485, supports Modbus RTU protocol
Alarm Output OCT upper/lower limit alarm output, pulse output (optional)
Relay Output Optional, 30 VDC @ 1 A, switching frequency < 2 Hz
Applicable Media Water, sewage, chemical reagents (impurities < 4%)
Protection Rating IP54 / IP65
Installation Method Integrated clamp-on installation, fixed with upper and lower brackets and screws
Pipe Size OD 9.53 – OD 110 (DN6 – DN100)
Sensor Material Aluminum alloy
Medium Temperature Integrated type: -10°C – 50°C
Ambient Temperature -10°C – 50°C
Ambient Humidity 0 – 95% RH, non-condensing
Applicable Viscosity < 300 cSt (mm²/s)
Cable Length 2.0 m (extendable to 20 m)

  • Dimensions

Model Nominal Diameter (DN) Nominal Pipe Size (Inch) Outer Diameter Range (mm) A Max (mm) B (mm) C (mm)
Φ9.53 DN6 1/8" 9.53 – 12.7 100 58 106
Φ12.7 DN8 1/4" 12.7 – 14 100 58 106
Φ15 DN10 3/8" 14 – 17 100 58 106
Φ20 DN15 1/2" 17 – 20 106 58 106
Φ25 DN20 3/4" 22 – 30 106 58 106
Φ32 DN25 1" 30 – 35 111 58 106
Φ40 DN32 1.2" 38 – 45 121 68 106
Φ50 DN40 1.5" 48 – 54 130 78 106
Φ63 DN50 2" 58 – 68 146 91 130
Φ75 DN65 2.5" 68 – 78 159 105 136
Φ90 DN80 3" 88 – 96 174 119 150
Φ110 DN100 4" 108 – 116 197 143 174

  • Applications

Since its launch, the product has been widely adopted in cleaning equipment systems and continues to expand into more industries due to its simple installation and reliable performance.

Main Application Industries

  • Semiconductor manufacturing

  • Food processing

  • Pharmaceutical industry

  • Beverage production

  • Detergent manufacturing

  • Textile printing and dyeing

  • Chemical processing

The wide adaptability to different liquids and pipelines makes the clamp-on ultrasonic flow meter suitable for a broad range of industrial applications.

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