Front view of the MTMF Thermal Gas Flow Meter, a compact sensor designed for accurate direct mass gas flow measurement in industrial applications without temperature or pressure compensation.
Front view of the MTMF Thermal Gas Flow Meter, a compact sensor designed for accurate direct mass gas flow measurement in industrial applications without temperature or pressure compensation.
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MTMF – Thermal Gas Flow Meter

The MTMF Thermal Gas Flow Meter is a high-performance digital gas flow meter engineered for precise and stable mass flow measurement in a wide range of industrial applications. Using advanced thermal dispersion technology, it delivers direct and accurate readings of gas flow rates—without the need for temperature or pressure compensation. Whether you’re measuring natural gas, hydrogen, nitrogen, oxygen, propane, or other industrial gases, the MTMF provides long-term stability, minimal maintenance, and outstanding reliability.

Key Applications

✔️ Natural Gas Flow Measurement
Ideal for natural gas pipelines, distribution systems, and industrial combustion processes where accurate, real-time measurement is essential.

✔️ Chemical & Petrochemical Processing
Used as a hydrogen gas flow meter, nitrogen flow meter, or argon flow meter for gas dosing, reaction control, and safe handling in chemical reactors and mixing systems.

✔️ Power Generation & Boilers
Enables accurate measurement of combustion air or fuel gases (e.g., propane, natural gas) in turbines, boilers, and co-generation units.

✔️ Environmental Monitoring & Air Quality
Supports leak detection, gas emission measurement, and regulatory compliance in environmental protection systems. Can also serve as a digital oxygen flow meter for monitoring cleanroom or exhaust gases.

✔️ Pharmaceutical & Food Industries
Ensures consistent flow control for process gases (such as N₂ or O₂) in production environments with strict quality standards.

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Description

The MTMF Thermal Gas Flow Meter is a high-precision digital gas flow meter that operates on the principle of thermal diffusion, using the constant temperature difference method to ensure accurate and stable measurements of various gas types. It delivers direct mass flow measurement without requiring temperature or pressure compensation, making it ideal for use with hydrogen, nitrogen (N₂), natural gas, air, argon, and other industrial gases.

Designed with a compact, fully digital structure, the MTMF meter allows for easy installation and seamless integration into new or existing systems. Its no-moving-parts design ensures exceptional reliability, even in harsh or vibration-prone environments, reducing wear and eliminating common maintenance issues found in traditional flow meters.

The MTMF Thermal Gas Flow Meter is especially suited for demanding applications in chemical processing, HVAC systems, power generation, environmental monitoring, and energy production. Its long service life, excellent seismic resistance, and cost-effective performance make it a smart choice for industries that require consistent, long-term gas flow monitoring.

Whether you need a hydrogen flow meter, a nitrogen gas flow meter, or a versatile digital thermal mass flow meter, the MTMF provides a reliable and scalable solution tailored to modern industrial needs.

Features

✅ High-Accuracy Gas Flow Measurement
Delivers precise mass flow measurement of gases—such as hydrogen, nitrogen (N₂), natural gas, and air—without requiring temperature or pressure compensation. Ideal for applications needing high repeatability and accuracy.

✅ Wide Flow Range (0.5 Nm/s to 100 Nm/s)
Covers a broad spectrum of gas flow rates, making it suitable for applications like gas leak detection, oxygen tank flow monitoring, and precise flow control across multiple sectors.

✅ No-Moving-Parts Design
Unlike mechanical meters (e.g., rotor or turbine gas meters), the MTMF features a non-mechanical, digital gas flow meter design that minimizes maintenance, resists vibration, and ensures long-term reliability.

✅ Exceptional Seismic and Vibration Resistance
Ideal for use in rugged industrial environments—such as power plants, chemical processing facilities, or compressed gas systems—where stability under stress is essential.

✅ Integrated Digital Electronics
Built with advanced digital circuitry, the meter offers high signal stability, simplified calibration, and real-time performance diagnostics, reducing downtime and manual intervention.

✅ Smart Communication Protocols
Supports RS-485 and HART interfaces, enabling easy connection to SCADA, PLC, or IoT systems for centralized monitoring, control, and data logging.

✅ Long Service Life with Low Maintenance
The durable sensor design ensures extended operational life, even under harsh conditions, offering a cost-effective gas flow meter solution with minimal servicing needs.

✅ Versatile Gas Compatibility
Compatible with a wide range of gases, including hydrogen (H₂), nitrogen (N₂), oxygen, argon, natural gas, propane, and compressed air, meeting diverse industrial gas flow meter requirements.

Specification

Medium Gas (Except acetylene gas)
Pipe diameter DN10～4000mm
Flow rate 0.1～100 Nm/s
Accuracy ±1～2.5%
Operating temperature Sensor: -40～+220℃ Converter:-20～+45℃
Working pressure (Medium pressure ≤ 1.6MPa plug-in type)

(≤ 1.6MPa full pipe type)

special pressure can be customized
Power supply All-in-one (DC 24V or AC220V≤ 18W)

Split type (AC220V≤ 19W)
IP grade IP65

FAQ

1. What is a thermal gas flow meter and how does it work?

A thermal gas flow meter measures the mass flow rate of gases using the principle of thermal diffusion. It operates by maintaining a constant temperature difference between a heated sensor and the gas stream. As gas flows past the sensor, heat is carried away, and the meter calculates the mass flow based on this heat loss—without requiring temperature or pressure compensation.

2. Can the MTMF be used as a hydrogen flow meter?

Yes, the MTMF is an excellent choice for hydrogen gas flow measurement. It offers high sensitivity and stable performance for low molecular weight gases like hydrogen, making it ideal for applications in chemical processing, hydrogen production, and fuel cell systems.

3. Is this meter suitable for nitrogen gas applications?

Absolutely. The MTMF functions effectively as a nitrogen flow meter (or N2 flow meter) in industrial settings such as pharmaceutical production, electronics manufacturing, and inert gas blanketing. It provides accurate, real-time flow data for both high and low flow rates.

4. Does the MTMF Thermal Gas Flow Meter work with propane gas?

Yes, it can be used as a propane gas flow meter for monitoring gas flow in combustion systems, industrial heating units, and LPG-powered equipment. Its no-moving-parts design ensures safety and durability in these environments.

5. What types of gases can this flow meter measure?

The MTMF is compatible with a wide range of gases, including:

  • Natural gas

  • Hydrogen (H₂)

  • Nitrogen (N₂)

  • Oxygen (O₂)

  • Air

  • Argon (Ar)

  • Propane (LPG)

  • Helium (He)

  • Carbon dioxide (CO₂)
    This makes it a versatile gas flow meter for various industries.

6. What is the measurement range of the MTMF?

The MTMF supports a wide measurement range from 0.5 Nm/s to 100 Nm/s, making it suitable for detecting everything from small gas leaks to high-flow industrial processes.

7. Is the MTMF a digital gas flow meter?

Yes, it features integrated digital circuitry that provides accurate, stable readings and supports RS-485 and HART communication protocols for seamless integration with automation and monitoring systems.

8. What are the advantages of using a thermal gas flow meter over other gas meter types?

Unlike mechanical gas meters or differential pressure meters, the MTMF offers:

  • Direct mass flow measurement

  • No moving parts

  • Low maintenance

  • High vibration resistance

  • No need for pressure or temperature compensation
    These benefits make it one of the most reliable digital gas meter types for industrial use.

9. Can I use this flow meter in environments with vibration or shock?

Yes. The MTMF is designed with excellent seismic resistance, making it ideal for use in power plants, factories, or mobile gas systems where vibration is a concern.

10. Is the MTMF suitable for residential propane flow monitoring?

While the MTMF is optimized for industrial use, it can also serve in residential propane flow meter applications where accurate and continuous flow monitoring is required, such as in large-scale heating or generator systems.

Datasheet

MTMF Thermal Gas Flow Meter Datasheet

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