Ultrasonic Gas Flow Meters Energoflow GFE-211, Energoflow GFE-212

Ultrasonic Gas Flow Meters Energoflow GFE-211, Energoflow GFE-212

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Ultrasonic Gas Flow Meters Energoflow GFE-211 and Energoflow GFE-212 are a brilliant example of genial engineering for achieving an optimal solution for gas flow measurement in large pipes and in cases where installation of inline meters is technically or commercially not viable.The meter comprises of electro-acoustic transducers hot tapped into the existing pipeline and connected to a remote electronics block. Of great importance is the exact positioning of the transducers. This is achieved by our engineers by using special methods and technologies and using a special tool for hot-tapping without the need to stop the flow in the pipeline.

Besides the reduction of cost, especially in the case of large pipelines where the flow meter body constitutes a major part of the cost of the device and installation calls for a capital effort, Energoflow GFE-211 and Energoflow GFE-212 gas flow meters provide all the traditional advantages of pulse-time ultrasonic technology – no pressure loss, no moving parts, reliable and accurate measurement, and easy servicing. They can be installed on pipeline 100 mm up to 1600 mm in size and can be used for a wide range of media like petroleum gas, flue gas coal gas, etc.

The standard version of these flow meters can measure flow velocities in the range of 0.1 m/s …35 m/s. A special version of these flow meters is available for the measurement of flare gas where flow velocity can be as high as 70 m/s.

Some Specific Applications

Volumetric flow measurement of impure gases for technical purposes

Since there are no moving or protruding parts, the GF flow meters can easily handle gases with liquid droplets and suspended particles like soot. Generally flow meters GFE 211, GFE 212 with embedded sensors are recommended for such applications – the sensors can be taken out once in a while for cleaning without stopping the technical process.

Monitoring systems for pipelines, including applications where bidirectional or reverse flow may occur, eg., at pipeline junctions.

In case of complex pipelines with more than one feeder, there are cases of reverse or bidirectional flow due to pressure topography. Monitoring such flow requires highly sensitive flow meters. The GFE 212 series flow meters are capable of recording flow velocities as low as 0.1 m/s which makes them ideal for such applications.

  • Accuracy better than 1%;
  • Pipeline diameter 50 mm upto 400 mm;
  • Range not less than 1:160;
  • Working pressure from 1 to 100

Energoflow AG has recently completed the turn-key installation of a natural gas flow measurement complex comprising of four GFE 212 ultrasonic flow meters – three DN300 and one DN800 for Intergas Central Asia in Kazakhstan.

For measuring gas flow in flares at compressor stations where the flow velocities can be in the range of 0.1 m/s upto 70 m/s.

We can provide specially designed low cost flow meters GFE 201 with very wide range ability (1:160) which can accurately and reliably measure flow velocities from 0.1 m/s upto 70 m/s. The fast reaction of the electronics unit paired with this huge range ability provides the best solution to flare gas measurement.

About the company

Energoflow AG is an ISO 9001 certified Swiss company dedicated to design, engineering and manufacture of flow metering solutions and related products based on the ultrasonic technology.


We strive to provide state-of-the-art, cost effective turnkey technical solutions to our valued clients throughout the world for fluid measurement and monitoring in related fields across a wide range of industries and applications.

Experience, Expertise & Efficiency !

Our compact team of EXPERIENCED professionals with a vast global exposure is dedicated to provide the best answer to client’s requirements based on our EXPERTISE, and our business practices and management concepts are aimed to provide the highest degree of EFFICIENCY.

Energoflow AG can provide the optimal solution to all your flow metering requirements – the wide range of our products covers all the feasible fluid flow situations. And if you have an unusual, out of the way case – just contact us with the details! We love challenges and our team of Engineers will be just too happy to provide the exact flow meter corresponding to your requirements.

High pressure applications

Dimension Type Volumetric flow rate, m 3 /h
Threshold Qthr Minimal
200 G1600 12.0 17.0 125.0 2 500.0
250 G2500 19.0 26.0 200.0 4 000.0
300 G4000 27.0 38.0 325.0 6 500.0
400 G6500 48.0 67.0 500.0 10 000.0
500 G10000 71.0 100.0 800.0 16 000.0
600 G16000 111.0 160.0 1 250.0 25 000.0
800 G25000 177.0 250.0 2 000.0 40 000.0
1000 G40000 288.0 400.0 3 250.0 65 000.0
1200 G65000 470.0 670.0 5 000.0 100 000.0
1600 G100000 700.0 1 000.0 8 000.0 160 000.0
2000 G160000 1 100.0 1 600.0 12 500.0 250 000.00
2500 G250000 1 900.0 2 700.0 20 000.0 400 000.00
3000 G400000 2 800.0 4 000.0 32 500.0 650 000.00
4000 G650000 4 700.0 6 700.0 50 000.0 1000 000.00


Ref: Energoflow.com

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