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CL-1 Ultrasonic Gas Flowmeter

This series product measuring calibers covering from DN50~DN750, measuring accuracy reaches 0.5 above , it is suitable for accurate and reliable custody transfer of natural gas long distance pipeline, also it is suitable for all kinds of medium and low pressure situations under the condition of natural gas, city gas, large industrial users with high precision flow metering and monitoring.
The 8 sound paths in the cross paralleled layout can effectively solve the influence of the flow field distortion in the pipeline, such as turbulence flow, swirling flow, pulsating flow and other uncertain flow fields, on the gas ultrasonic measurement accuracy, besides it has lower requirements on the length of front and rear straight pipe sections with convenient installation and application in compact sites.
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  • CL-1

A variety of products to choose from, applicable to differenttypes of users;

1. Highprecisionultrasonic flometer for city highpressure gatestation,distributionmeasurement,etc

2. For industrial users, etc, applying mid and low pressure ultrasonic flow meter instead of turbine, roots andother mechanical flowmeters.

3. For commercial users, applying ultrasonic gas meter instead of leather diaphragm meter


Not less than two paths, fundamentally guaranteethe reliability of the measurement;

Providing city gas intelligent monitoring and control system software;

Providing better technology to reduce the poor city gas supply and marketing.


1. Principle of measurement: Ultrasonic time difference method

2. Measuring medium: Natural gas, air and other special gases

3. Number of paths: Four or eight paths

4. Path layout: Four  paths is  Paralleled direct; 8 paths is Crossed direct

5. Measurement range: 0.1-30m/s (High flow rate customizable)

Resolution Rate: 0.001m/s

Speed sampling interval: ≤0.1s

Accuracy Class: 0.5 Class

6. Repeatability: For common conditions, Qt~Qmax:≤ 0.1%

(Customizable according to customer requirements: Qt~Qmax:≤ 0.05%)

Transnational flow point: For common conditions,Qt≤0.1Qmax

(Customizable according to customer requirements: Qt≤0.05Qmax)

7. Overload capacity: ≥120% Qmax( no impact on short duration)

8. Measuring Caliber: 4 paths: DN50~DN400,8 paths: DN100~DN400 ( larger caliber customizable)

9. Nominal pressure: PN16, PN40, PN63;Class150, Class300, Class600, Class900, (Class1500, Class2500 customizable)


The CL-1 type gas ultrasonic flowmeter is suitable for accurate and reliable trade settlement measurement of high-pressure, high-flow and high-quality natural gas in the natural gas transmission pipeline network. It is also applicable to high-precision flow measurement and monitoring of natural gas, urban gas and large industrial gas under various medium and low pressure usage conditions.

Frequent questions
  • 1. Is it explosion-proof?
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    The explosion-proof grade is ExdⅡBT6 Gb
  • 2. What is the protection grade of the flowmeter title?
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    IP66
  • 3. Are there any analog inputs?
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    3-channel analog input signals (4-20mA), configurable, can be connected to active or passive temperature and pressure transmitters, with 24-bitA/D conversion accuracy.
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