Your Professional Thermal Flow Meter Supplier
Hongnuo (shenyang) General Machinery Co., Ltd. is an international, professional, and technology-driven manufacturer of intelligent fluid equipment. Integrating research, production, and sales, we are committed to innovation in intelligent fluid measurement and control.
Why Choose Us
Our Certificate
Certified to GB/T19001-2016/ISO 9001:2015 Quality System Standard,Meanwhile, the company's products have successively obtained professional certifications such as ATEX, CE, SIL, and others both domestically and internationally.The company attaches great importance to patent application and management, sets patent objectives, and supervises and manages them.
Cutting-Edge Smart Fluid Technology
Honno leads the industry with innovative, intelligent fluid measurement and control solutions. By integrating R&D, production, and sales, we continuously develop high-performance products that improve water efficiency, energy conservation, and environmental management, positioning us as a pioneer in smart industrial technologies.
Global Market Expertise & Compliance
With strong presence in Europe, North America, Asia, and Africa, Honno delivers tailored solutions that meet rigorous international standards such as CE and SIL. Our extensive global experience ensures reliable product performance and seamless market entry, supporting clients across diverse industries with customized, cost-effective solutions.
Comprehensive 24/7 Service & Support
Honno provides a robust end-to-end service system, including pre-sales consultation, rapid mid-sales fulfillment, and proactive after-sales support. Clients benefit from fast response times, remote or on-site guidance, spare parts availability, and lifetime technical assistance, ensuring uninterrupted operations and maximum system efficiency.
Thermal Flow Meter Specifications
|
Media |
Various Gases (Except acetylene) |
|
Pipe Size |
Insertion type:DN50-DN2000mm In-line type:DN10-DN2000mm Tri-clamp & Thread type:DN15-100mm |
|
Velocity |
0.1-100Nm/s |
|
Accuracy |
+/-1~2.5% |
|
Working Temperature |
Sensor:-40~+220 degC Transmitter:-20~+45 degC |
|
Working Pressure |
Insertion type ≤1.6Mpa Flange type ≤4.0Mpa Special pressure please double check |
|
Power Supply |
Compact type: 24VDC or 220VAC, Power consumption ≤18W Remote type:220VAC,Power consumption ≤19W |
|
Response Time |
1s |
|
Output |
4-20mA(optoelectronic isolation,maximum load 500Ω),Pulse RS485(optoelectronic isolation) and HART |
|
Alarm Output |
1-2 line Relay, 10A/220V/AC or 5A/30V/DC |
|
Sensor Type |
Standard Insertion, Hot-tapped Insertion and Flanged |
|
Construction |
Compact and Remote |
|
Pipe Material |
Carbon Steel, Stainless Steel,Plastic etc. |
|
Display |
4 lines LCD Mass flow, Volume flow in nominal condition, Flow totalizer, Date and time, Working time and Velocity, etc. |
|
Protection |
IP65 |
Direct Mass Flow Measurement: No need for pressure or temperature corrections
Superior Low-End Sensitivity: Accurately measures even minimal flow rates
Exceptional Turndown Ratio: Typically 100:1 with resolution as high as 1000:1; higher turndown is available in optimal conditions.
Easy Installation: Simple insertion or inline installation options
No Moving Parts: Ensures long-term reliability and minimal maintenance
Low Pressure Drop: Conserves energy with negligible flow restriction
Versatility: Effective across a wide range of pipe sizes and applications

Type
Insertion Thermal mass flow meter
if we have large pipes and don’t want to cut them, then maybe we can use an insertion thermal mass flow sensor. Rather than cutting the pipe, an insertion sensor is inserted into the pipe between two flanges.
Bypass Thermal mass flow meter
Below you can see two names for this device. We call it either a bypass flow meter or a capillary tube flow meter. This type has a laminar flow element and includes an inlet and outlet for the capillary tube where the fuel flows during its cycle.
Inline Thermal mass flow meter
This product has a lightweight, yet aerodynamic shape. It combines the advanced sensor and transmitter in patented packaging.
Main Components
Heating Element
The heating element is the part of the flow meter that generates heat, and when gas flows through the meter, this heating element heats up, and this heat gets absorbed by the passing gas.
Temperature Sensors (Thermocouples, RTDs)
These thermal flow sensors are crucial because they measure the temperature difference in the gas as it passes through the meter.
Flow Body(The flow body is the section where gas flows)
That is the pipe or tube where the gas travels. The flow body holds the heating element and temperature sensors, making sure the gas flows smoothly.
Power Supply
The power supply is what keeps the flow meter running. It supplies electricity through the heating element, sensors, and other parts of the system.

Compressed Air System Auditing
Compressed air is one of the most expensive utilities in any manufacturing facility. Leaks within the system are a common problem, silently wasting energy and driving up operational costs.
Combustion Control for Boilers and Furnaces
In the power generation, chemical, and petrochemical sectors, efficient combustion is fundamental to both profitability and safety. Achieving the perfect air-to-fuel ratio is critical for maximising energy output while minimising fuel waste and harmful emissions.
Aeration Air Management in Wastewater Treatment
Wastewater treatment is a vital but energy-intensive process. The aeration stage, where large blowers pump air into basins to encourage microbial activity, can account for over half of a treatment plant’s total electricity consumption.
Speciality Gas Monitoring
Industries from food and beverage to advanced manufacturing rely on expensive speciality gases like nitrogen, argon, and carbon dioxide. Whether it’s nitrogen blanketing to preserve food freshness or argon shielding for high-quality welding, precise control is essential.
Our Services
Make sure the defult parameter of product, if you need other prameter please let us know.
Double check if your Address and Zip code is correct, the city name and zip code need matched.
Please check your messages and tracking information often, maybe some important information need your confirmation.
Orders for non-standard customized products are not cancellable or return after ordered.
Standard batteries, liquid and other prohibited parts are usually removed before shipping.
The buyer is responsible for customs clearance and paying duties.
Certification




FAQ
Hongnuo (shenyang) General Machinery Co., Ltd. is one of the most experienced thermal flow meter manufacturers and suppliers in China, also supports customized service. Please feel free to buy high quality thermal flow meter at competitive price from our factory.
DN15 Gas Flow Meter, industrial gas flow meter, kurz mass flow meter


