Thermal Gas Flow Meters

Thermal gas mass flow meters based on thermal dispersion theory directly measuring standard/mass flow of compressed air, nitrogen, natural gas, process gas.
Comate inline Thermal Gas Flow Meters: TGF450 and TGF600. The high precious model TGF450 is designed for compressed air and nitrogen gas flow measurement at a low price for most applications. The TGF600 is available in inline install and flanged in-line type for heavy-duty industrial gas flow measurement.
TGF thermal mass flow meter connected with COMATE APP via Bluetooth, users can read the measured value on their phone and remote monitoring with the help of self-diagnostics!

Thermal gas mass flow meter |TGF450 thermal gas flow meter

TGF450 Thermal Gas Flow Meter is specially designed for compressed air, nitrogen gas thermal mass flow meter measurement solution. It can provide a stable and accurate measurement at a more economical cost. It has 1.5% FS+0.5RD accuracy on a 100:1 wide turndown ratio. The compact design and thick probe are easier to install under a pressure pipeline.

Thermal gas mass flow meter |TGF600 Thermal Gas Flowmeters

TGF600 Series Inline Thermal Gas Flow Meters with more rugged design to adapt to harsh industrial applications. It implements COMATE’s latest sensor filming technology and high sensitivity sensors to ensure a stable measurement at a shallow flow rate down to 0.3Nm/s. The standard insertion model can fit in the pipeline from DN80~DN500, and an extended model can fit in the smaller pipe down to DN25 and larger pipe up to DN 2000.

TGF600 Inline Thermal Gas Flowmeters

TGF600 Screw-in connection thermal mass flow meters designed for small pipe size gas flow measurement.
0.3~30Nm/s;0.6~60Nm/s;0.9~90Nm/s for option

TGF200 Micro Gas Flow Meter

The TGF200 series microflow meter measures dry air, nitrogen, and other non-corrosive gas based on thermal mass flow measurement technology. It is designed to measure the mass and standard flow in small pipelines in general industry and laboratory.
1/2″ ~ 1″ (8mm~25mm) small pipeline measurement.


Thermal dispersion flow metres are generally employed in pipes and ducts for basic industrial gas flow applications. In contrast, capillary flow metres are primarily used in tubes for smaller fluxes of clean gases.

There are two types of thermal flow meters: constant heating current and constant temperature differential

Coriolis mass flow metres offer the most precise results for most fluids, but they are also the most expensive. They have the benefit of not requiring any prior information of the fluid being transported. Thermal mass flow metres are a less precise but accurate way of measuring mass flow. They do, however, necessitate an understanding of the fluid’s specific heat capacity.