Thermal Gas Mass Flow Meter
Thermal Gas Mass Flow Meter
Thermal gas mass flow meter directly measures gas mass flow based on thermal dispersion principle, with wide turndown ratio, resistance to pipeline vibration, and short straight pipe requirement. Widely used in gas metering for utilities, oil & gas, power, chemical, metallurgy and other industries.
- Thermal dispersion principle, directly measures gas mass flow, no temperature/pressure compensation required
- Wide turndown ratio, resistant to pipeline vibration, short straight pipe requirement
- No moving parts, low pressure loss, long-term stable and reliable
- Applicable to various gases: air, biogas, coal gas, natural gas, hydrogen, etc.
- Insertion/spool piece types available, suitable for large diameter pipes
- Strong low flow measurement capability, fast response
Overview
Product Overview
The thermal gas mass flow meter is designed based on thermal dispersion principle to directly measure gas mass flow. It is widely favored for its wide turndown ratio, resistance to on-site pipeline vibration, and short required straight pipe section. It is extensively used in gas measurement and monitoring in industries such as utilities, oil & gas, power, chemical, and metallurgy.
Measurement Principle
Utilizing heat exchange between a heating element and the medium: the greater the gas mass flow rate, the more heat is carried away, thus directly obtaining mass flow without additional temperature or pressure compensation. Insertion and spool piece types are available to suit different pipe diameters.
Specifications
| Measurement Principle | Thermal Diffusion (Thermal Mass) |
| Applicable Medium | Air, biogas, coal gas, natural gas, hydrogen, etc. |
| Measurement Method | Direct Mass Flow (Standard Conditions) |
| Turndown Ratio | Wide (up to 100:1) |
| Straight Pipe Section Requirement | Short |
| Installation Type | Insertion / In-line |
| Output Signal | 4-20mA / Pulse / RS485 |
| Features | No temperature/pressure compensation, vibration resistant, low pressure loss |