The Gas Turbine Flowmeter is designed for precise measurement of gases such as natural gas, air, nitrogen, hydrogen, and other industrial gases.
It works by converting the rotational speed of the turbine impeller into flow signals, which directly correspond to the volume or mass flow of the gas.
With optional temperature and pressure compensation, it can calculate standard volume flow or mass flow, making it ideal for energy management, process control, and custody transfer.
High Accuracy
±1.0% (standard), ±1.5% with temperature & pressure compensationWide Measuring Range
Suitable for both low and high gas velocitiesLow Pressure Loss
Efficient energy usageAutomatic flow correction for standard conditions
Multiple Output Options
Pulse, 4-20mA, RS485/ModbusReliable & Durable
Long service life, minimal maintenance required
Natural gas measurement in pipelines and distribution networks
Compressed air monitoring in industrial plants
Nitrogen, oxygen, hydrogen, and other process gases
Petrochemical and chemical industries
Trade settlement and energy cost allocation
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Nominal diameter (DN) |
DN25 ~ DN300 |
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Accuracy |
±1.0% ~ ±1.5% |
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Medium |
Natural gas, air, nitrogen, oxygen, hydrogen, other gases |
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Flow range |
2 ~ 150 m/s (depending on pipe size & gas type) |
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Pressure |
PN16, PN25, PN40, higher on request |
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Medium temperature |
-20℃ ~ +80℃ |
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Materials |
Stainless steel (304/316L), Aluminum housing |
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Output signal |
Pulse, 4-20mA, RS485/Modbus |
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Power supply |
24V DC or lithium battery |
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Protection grade |
IP65, IP67 |
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Display |
Instantaneous flow, totalized flow, temperature, pressure |
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Explosion proof grade |
iaII CT6, dIIBT4 |
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Atmospheric pressure |
(70-110) Kpa |
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Ambient |
temperature: -40°C ~ 55°C, humidity: 5% -90 % |
| OD DN(mm) | Specifications | Initial Flow(m³/h) | Flow range (m³/h) | Pressure (MPa) | shell |
| 25 (1") | LWGQ-25 | ≤0.8 | 3-40 | 1.6/2.5 | aluminium alloy or SS304 |
| 25 (1.25") | LWGQ-32 | ≤0.9 | 7-80 | ||
| 40 (1.5") | LWGQ-40 | ≤1.7 | 8-100 | ||
| 50 (2”) | LWGQ-50A | ≤0.8 | 6.5-65 | ||
| LWGQ-50B | ≤0.9 | 8-100 | |||
| LWGQ-50C | ≤1.7 | 10-150 | |||
| 80 (3”) | LWGQ-80A | ≤2.0 | 10-200 | ||
| LWGQ-80B | ≤2.5 | 13-250 | |||
| LWGQ-80C | ≤3.0 | 20-400 | |||
| 100 (4”) | LWGQ-100A | ≤2.5 | 13-250 | 1.6 | |
| LWGQ-100B | ≤3.0 | 20-400 | |||
| LWGQ-100C | ≤4.5 | 32-650 | |||
| 150 (6”) | LWGQ-150A | ≤7.5 | 32-650 | ||
| LWGQ-150B | ≤8.5 | 50-1000 | |||
| LWGQ-150C | ≤10 | 80-1600 | |||
| 200 (8”) | LWGQ-200A | ≤12 | 50-1000 | SS304 | |
| LWGQ-200B | ≤16 | 80-1600 | |||
| LWGQ-200C | ≤20 | 130-2500 | |||
| 250 (10”) | LWGQ-250A | ≤20 | 80-1600 | ||
| LWGQ-250B | ≤22 | 130-2500 | |||
| LWGQ-250C | ≤25 | 200-4000 | |||
| 300 (12”) | LWGQ-300A | ≤22 | 130-2500 | ||
| LWGQ-300B | ≤25 | 200-4000 | |||
| LWGQ-300C | ≤35 | 320-6500 |
