Thermal Flow Meter

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

 

 

Key Features

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

gas mass flowmeter

 

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
 
01/

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.

02/

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.

03/

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.

04/

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.

 

propane gas flow meter

 

Applications

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

 

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FAQ

 

Q: Are you a manufacturer or a trading company?

A: We are a manufacturer with our own factory, a professional technical team and aproduction department, and we have more advantages in quality and price.

Q: Can you offer OEM/ODM product?

A: Yes, OEM and ODM are both welcome.

Q: What is your minimum order quantity?

A: There are no minimum order quantity, welcome to order according your need.

Q: How long about your Warranty?

A: One year warranty and Long-term technical support.

Q: How about the quality?

A: We have professional equipment and QC staffs to control the quality strictly.

Q: What is the standard of package?

A: Export standard package(Cartons or wooden cases)

Q: How long is your delivery time?

A: Regular products in stock can be shipped on the same day, other customized products areshipped according to your quantity and requirements.

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.

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