Flange-connected Thermal Mass Flow Meter

Flange-connected Thermal Mass Flow Meter

The thermal gas mass flowmeter is an industrial instrument for gas mass‑flow measurement. It works on the thermal‑diffusion principle with constant temperature‑difference method. It directly outputs gas mass flow or standard‑volume flow without temperature and pressure compensation, and is widely used for metering various industrial gases.
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Dalian Yheng Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of flange-connected thermal mass flow meter in China. Welcome to buy high quality flange-connected thermal mass flow meter in stock here from our factory. If you have any enquiry about customized service, please feel free to email us.

 

Technical Specifications

Item Specification
Pipe Size DN15 ~ DN2000 mm
Max. Working Pressure ≤1.6 MPa (customizable for higher pressure)
Accuracy ±1 ~ 2.5 %
Wetted Material Stainless steel / carbon steel
Process Standard Flange Matches GB/T9119 or customized per requirement
Structure Integrated type / Remote split type
Protection / Explosion‑proof IP65/IP67/IP68; Ex db ⅡC T6 Gb
Output 4‑20 mA, lightning‑protected RS‑485

Main Features

  • No temperature‑pressure compensation required: Directly measures mass flow; outputs mass flow and standard volume flow.
  • Extremely wide turndown ratio. It can measure very low flow velocity down to 0.1 Nm/s, and supports gas‑leak detection.
  • No moving parts or pressure‑sensing components. Good anti‑vibration performance and long service life.
  • Non‑stop‑production installation and maintenance available (special customization required).
  • Digital‑circuit measurement. Local LCD display shows instantaneous and accumulated flow.,
  • Signal outputs: 4‑20 mA analog output, lightning‑protected RS‑485 communication for factory‑automation integration.
  • Relay alarm output is available; explosion‑proof version is optional.
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