Vortex Gas Flow Meter
A digital vortex gas flow meter is designed to measure the flow of industrial gases and steam using the vortex shedding principle. As gas passes a bluff body in the meter, vortices are generated and detected as a frequency signal proportional to flow rate. The meter provides stable digital output for monitoring and control systems. It is commonly used in compressed air, natural gas, and steam applications.
| Diameter | DN15~DN1800 (mm) |
| Accuracy | Pipe type: Class 1.0 Insertion type: Class 2.5 |
| Temp. range | -40℃~+500℃ |
| Pressure | 1.6 MPa (offer 2.5Mpa and 4.0Mpa customization) |
| Flow rate | 5-60m/s |
| Output | Voltage pulse, 4-20mA output,HART, Modbus, RS485, RS232 options. |
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Vortex Gas Flow Meter Key Features
- Suitable for medium to large pipe sizes, typically DN25 to DN300
- Designed for medium to high gas flow rates with a wide turndown ratio, up to 20:1
- No moving or wearing parts, ensuring long service life and minimal maintenance
- Delivers stable and repeatable measurement, with accuracy up to ±1.0% of reading
- Operates reliably under high temperature and pressure, commonly up to 350°C and 4.0 MPa
- Optimised for clean, dry gases to maintain measurement stability
- Supports standard industrial outputs such as pulse, 4–20 mA, and digital communication
- Well suited for main pipeline gas metering in continuous industrial operation
| Item | Vortex flow meter for gas |
| Medium | Air,nitrogen, coal gas, natural gas, chemical gas,steam etc. |
| Accuracy | Pipe type: Class 1.0 Insertion type: Class 2.5 |
| Medium temperature | -40℃~+500℃ |
| Nominal pressure | ≤1.6Mpa (offer ≤2.5Mpa and ≤4.0Mpa customization) |
| Flow rate | 5-60m/s |
| Output | Voltage pulse, 4-20mA output, HART, Modbus, RS485, RS232 options. |
| Installation | Flange, clamp flange, insertion, threat, clamp connection |
| Power | 12~28VDC;85~265VAC (Remote display);3.6V lithium battery (on site display) |
| Operating condition | Temperature: -25℃~60℃ Humidity: 5%~90% |
| Housing material | Stainless steel 304 |
Vortex flow meters are used for gas measurement in medium to large pipelines with medium to high flow rates. With no moving parts, they require little maintenance and deliver stable, accurate results. They are well suited for clean, dry gases and are commonly used for main pipeline metering in industrial systems.
Typical applications:
- Industrial gases: compressed air, nitrogen, oxygen, argon, and similar clean gases
- Fuel gases: natural gas, LPG, and city gas systems
- Process gases: flue gas and steam, especially in high-temperature or high-pressure conditions
- Industries: chemical processing, power generation, metallurgy, municipal gas networks, and general industrial plants
