Electrical Equipment & Supplies

Top Five Magnetic Flowmeter Manufacturers in China

Top Five Magnetic Flowmeter Manufacturers in China

Numeriklire is a top industrial catalog listing of leading manufacturers and suppliers of industrial magnetic flow meters. Visit our comprehensive index to review and purchase electromagnetic flowmeter manufacturers through preview advertisements and detailed product descriptions. These electromagnetic flowmeter companies can design, engineer and manufacture electromagnetic flowmeters according to your specifications and application requirements.

A quick and easy-to-use quotation request form is provided for you to contact these electromagnetic flowmeter manufacturers and suppliers. Each company has detailed profile information, location, phone number, website link, product video and defined product information. Read customer reviews and product-specific news articles. Whether it is an electromagnetic flowmeter, air flowmeter, or flowmeter manufacturer, we are the right resource to meet your information needs.

Here is the list of five Magnetic Flowmeter Manufacturers in China:



SILVER AUTOMATION INSTRUMENTS industrial process instrumentation solves various requirements in the fields of agricultural irrigation, industrial water and wastewater, factory process control, oil and natural gas, power generation, etc. Our products can be found in large-scale installations globally and domestically. The reliable and sturdy measuring instrument meets many demanding industrial, safety and quality standards at home and abroad.

The main categories of our products are:

  • Flow measurement
  • (Electromagnetic flowmeter, vortex flowmeter, turbine flowmeter, oval gear flowmeter, etc.)
  • Temperature measurement
  • (Thermocouple and RTD, temperature transmitter, thermometer)
  • Pressure measurement
  • (Pressure gauge, pressure transmitter)
  • Level measurement
  • (Ultrasonic level gauge, hydrostatic level gauge, radar level gauge)
  • Panel meters and paperless recorders
  • (Flow totalizer, batch controller and paperless recorder)

We continue to pursue qualified products and combine our knowledge of instrumentation to serve our customers



Yuyao Zhenxing Flow Meter Factory [Ningbo Qiao Flow Meter Co., Ltd.] was established in 1991. It is a professional manufacturer of flow meters and has been involved in this field for more than 20 years. Our main products are electromagnetic flow meters, impeller and turbine transducers, battery-powered electromagnetic water meters and rotameters. We are located in Yuyao City, only 2000 meters away from the high-speed railway station, with convenient transportation.

The plant area is more than 18,000 square meters, and it has more than 10 years of foreign trade business with nearly 100 countries such as the United States, the Netherlands, Poland, Germany, Italy, South Korea, Japan, Taiwan, France, Arabia, Brazil, Australia, South Africa, Sweden, India, Malaysia, Vietnam, etc., and experienced staff can discuss your requirements at any time to ensure that customers are completely satisfied. We have high-precision instrumentation equipment, strictly control product quality, and have an excellent flowmeter R&D team. At the same time, we are also vigorously developing new products to meet special requirements. We enjoy a good reputation among customers with excellent service, high quality and competitive prices. We hope to develop good business with your company on the basis of mutual benefit, and warmly welcome to our factory for further cooperation.



For more than 15 years, SINCERE INSTRUMENT has specialized in the research, design, development, production and sales of measuring instruments.

We have exported to more than 53 countries in the world. About 6537 project sites are using our flowmeter and level gauge float switch to measure sensors

And other instruments.

With advanced manufacturing technology and scientific calibration system, the measurement accuracy can reach +_0.2%, +_0.5%, +_1%.

Accredited by a third-party laboratory, in line with ISO/IEC17025, strict quality control, so that each instrument has ideal measurement accuracy.

Customized and tailored measurement solutions to meet specific working conditions.

4, FlowT


FlowT was founded by flow measurement professionals with more than 20 years of experience in flow measurement and flow standards, of which 10 years have been in the field of ultrasonic flow measurement.

We are a pioneer in the ultrasonic flow measurement industry and have many years of experience valuable to our customers.

We are innovative and at the forefront of ultrasonic technology. We have introduced some revolutionary measurement technologies that will bring very high accuracy and real real-time measurement.

5, Kai Feng Weili Flow Instrument CO.,LTD

Kai Feng Weili Flow Instrument CO.,LTD

Kaifeng Weili Flow Meter Co., Ltd. is based on more than 20 years of experience in the field of flow measurement and industrial instrumentation. As a manufacturer of electromagnetic flowmeters/vortex flowmeters/orifice flowmeters/metal rotor flowmeters/water meters, we have advanced With the support of its technical team, it has physical presence in 355 cities in China.

Weili has passed CE, ISO 9001:2008, ISO14001 registration, and is committed to providing high-reliability, high-precision automated instruments and sensors to customers around the world. The company has 62 patented technologies, and its products are exported to Japan, the United States, South Korea, India and other countries. The company has built a DN2000mm water flow verification device and is expected to obtain the laboratory CNAS certification issued by the China National Accreditation Service for Conformity Assessment by the end of 2018, laying the foundation for the company’s transformation into a service-oriented enterprise. Oriented enterprise. Become the pioneer and leader of the domestic flow meter market.

6, Artang Magnetic Flowmeter



Established in 1991, Altang is a professional Chinese electromagnetic flowmeter manufacturer and electromagnetic flowmeter factory, engaged in this field for more than 20 years. Our main products are electromagnetic flow meters, paddle wheels and battery powered electromagnetic water meters. The factory area is more than 18,000 square meters, and it has been engaged in foreign trade business for more than ten years. Electromagnetic flowmeters are sold to more than 100 countries and regions. We have high-precision instruments and equipment to strictly control product quality, and we also have an excellent flowmeter development team. In addition, we also strive to develop new products to meet special requirements.

What is magnetic flowmeter?

What is magnetic flowmeter?

The magnetic flowmeter is a volume flowmeter without any moving parts. It is ideal for wastewater applications or any conductive or water-based dirty liquids. Magnetic flowmeters are also ideal for applications that require low pressure drop and low maintenance.

Magnetic flowmeters are generally not suitable for hydrocarbons, distilled water and many non-aqueous solutions.

How does the magnetic flowmeter work?

How does the magnetic flowmeter work?

The magnetic flowmeter uses a magnetic field to generate and direct the liquid to flow through the pipe. When the conductive liquid flows through the magnetic field of the flowmeter, a voltage signal is generated. The faster the fluid flows, the greater the voltage signal generated. An electrode sensor located on the wall of the flow tube receives the voltage signal and sends it to an electronic transmitter, which processes the signal to determine the liquid flow rate.

How to use magnetic flowmeter?

How to use magnetic flowmeter?

Magnetic flowmeters measure the velocity of conductive liquids in the pipeline, such as water, acid, caustic alkali, and slurry. When the conductivity of the liquid is greater than about 5μS/cm, themagnetic flowmeter can measure normally. Using magnetic flowmeters on low conductivity fluids (such as deionized water, boiler feed water, or hydrocarbons) will cause the flowmeter to shut down and measure zero flow.

These flow meters do not obstruct the flow, so they can be used for clean, hygienic, dirty, corrosive and abrasive liquids. Magnetic flowmeters can be applied to the flow of conductive liquids, so due to the non-conductive nature and gaseous state of hydrocarbons and gases, this technology cannot be used to measure them.

Magnetic flowmeters do not require too many upstream and downstream straight pipe sections, so they can be installed in relatively short meter pipe sections. Magnetic flowmeters usually require 5-10 diameter upstream straight pipe sections and 5-2 diameter downstream straight pipe sections, measured from the plane of the magnetic flowmeter electrode.

Typical application of magnetic flowmeter

Typical application of magnetic flowmeter

The structure of the magnetic flowmeter is that the only wet parts are the lining and the electrode, both of which can be made of corrosion-resistant materials. In addition, the straight-through (barrier-free) feature of the design reduces the possibility of hydraulic energy loss (pressure drop) and wear of flowing liquid through the flowmeter. Therefore, the magnetic flowmeter can measure many corrosive liquids and abrasive slurries. The lining and electrodes of the electromagnetic flowmeter can be made of materials that will not contaminate the liquid. Therefore, when liquid contamination is a problem, such as in sanitary applications, these flow meters can be used.

For mud service, please ensure that the size of the magnetic flowmeter is set to operate above the solids settling velocity (usually 1.5 – 2 ft/s) to avoid filling the pipe with solids that will affect the measurement and may prevent flow. Magnetic flowmeters used for grinding services are usually designed to run at low speeds (usually less than 5 – 6 feet per second) to reduce wear. In abrasive slurry service, despite the increased wear, the flow meter should be operated at a speed higher than the solids settling speed. These problems may change the range of the flowmeter, so its size may be different from the same amount of clean water flow.

Advantages and disadvantages of magnetic flowmeters

Advantages and disadvantages of magnetic flowmeters

There are many advantages to using magnetic flowmeters for fluid flow measurement. They are usually non-invasive and have no moving parts, thereby reducing the risk of failure and the frequency of maintenance. The pressure drop of the flowmeter is usually not greater than the drop of the equivalent pipe length, thereby reducing the pipe cost. Some other major advantages provided by magnetic flowmeters include:

  • Electricity usage is relatively low, and some models have power requirements as low as 15 watts.
  • They are mechanically barrier-free and can be equipped with wear-resistant linings, enabling them to effectively measure slurries and other corrosive fluids.
  • Since the lining materials are both insulators and corrosion-resistant, they can handle most types of acids and alkalis, as well as water and water-based solutions.
  • The magnetic flowmeter requires a relatively small amount of electrode metal.
  • They can measure very low flow rates and very high volume flow rates, with a minimum diameter of approximately 0.125 inches and a maximum volume of up to 10 cubic feet.
  • They can usually measure upstream or downstream multidirectional flow.

Despite these advantages, electromagnetic flowmeters also have certain difficulties for flow measurement. These flow meters are only effective for conductive fluids and cannot measure materials such as unmixed hydrocarbons and gases. However, the magnetic material itself may also be problematic, because the fluid dynamics effect changes the normal flow pattern and disturbs the speed enough to interfere with operation. Depending on its size and capacity, electromagnetic flow meters may be relatively heavy, while flow meters with higher corrosion resistance and wear resistance may be expensive.

If you want to know whether the magnetic flowmeter is suitable for your application, please contact us immediately. Our team of traffic experts can help you find the right product for your application.

How to choose and install magnetic flowmeter?

The key questions that need to be answered before choosing an electromagnetic flowmeter are:

  • Is the fluid conductive or water-based?
  • Is the fluid or slurry abrasive?
  • Do you need an all-in-one display or a remote display?
  • Do you need analog output?
  • What is the minimum and maximum flow rate of the flowmeter?
  • What are the minimum and maximum process pressures?
  • What are the minimum and maximum process temperatures?
  • Is the fluid chemically compatible with the wetted parts of the flowmeter?
  • What is the size of the pipe?
  • Is the pipe always full?

There are three common types of electromagnetic flowmeters. The specific requirements of your application will determine which electromagnetic flowmeter is the best:

  • Plug-in electromagnetic flowmeter-best suited for large pipeline applications
  • In-line electromagnetic flowmeter-best suited for applications that require high accuracy or higher flow rates
  • Low flow magnetometer-best for low flow applications

How to install electromagnetic flowmeter?

Precautions for installation of plug-in electromagnetic flowmeter

Choose a location for the sensor where the flow profile is fully developed and not affected by any disturbances. It is recommended that at least 10 diameter straight pipe upstream and 5 times diameter downstream. In some cases, an upstream pipe diameter of 20 times or more may be required to ensure a fully developed turbulence profile. The plug-in magnetic flowmeter is sensitive to bubbles at the electrode. If you have any questions about the absolute fullness of the pipe, install the sensor at an angle of 45 to 135 degrees.

Grounding requirements

Magnetic flow sensors are sensitive to electrical noise present in most piping systems. In the plastic piping system, the fluid carries a lot of static electricity, and it must be grounded to obtain the best performance of the magnetic flowmeter. The installation manual contains instructions on how to best ground the electromagnetic flowmeter.
Magnetic flowmeters are highly sensitive to air bubbles, which can cause high readings of the magnetic flowmeter. The direction of the flowmeter should ensure that the flowmeter is completely filled with water. If there is any problem that the pipe may not be absolutely full, please install the sensor at an angle of 45 to 135 degrees to avoid affecting the accuracy of the flow measurement.

In-Line Magnetic Flow Meters installation Considerations

The online flow meter does not need as many straight pipes as the plug-in type. It is recommended to have at least 5 to 10 pipe diameters upstream for straight pipe sections and 1 to 2 pipe diameters downstream. In vertical pipes, the flow should always flow upwards rather than downwards. These flow meters are very sensitive to air bubbles. The electromagnetic flowmeter cannot distinguish the air entrained in the process fluid; therefore, air bubbles can cause the magnetic flowmeter to read higher.

Low flow electromagnetic flowmeter

These low flow magnetic flowmeters are also in-line and offer 3/8 to ½ NPT connections. The FMG200 series provides flow rates as low as 0.38 LPM (0.1 GPM). A digital display with relay and analog output is standard.

For many years, sensors used in high-reliability applications (such as aerospace and military applications) have relied on connectors, such as Mil-C-5015 or MIL-C-38999 connectors, which provide high-reliability and safe connections. But at a high price. However, with the widespread use of industrial automation systems, the number of sensors used has increased dramatically, driving the demand for reliable, cost-effective connection systems for these sensors.