Insertion Electromagnetic Flow Meter

Insertion Electromagnetic Flow Meter

Insertion Electromagnetic Flow Meter

1. Applicable pipe diameter: DN100~DN2800
2. Type: split type, integrated type, plug-in type
3. Electrode material: SS316L, HC, HB, Ti, Tan, Pt
4. Accuracy: 0.5%, 1.0%

1.Working principle:

The working principle of the insertion electromagnetic flowmeter is based on Faraday’s law of electromagnetic induction. In the electromagnetic flowmeter, the conductive medium in the measuring tube is equivalent to the conductive metal rod in the Faraday test, and the two electromagnetic coils at the upper and lower ends generate a constant magnetic field. When a conductive medium flows, an induced voltage is generated. Two electrodes inside the pipe measure the induced voltage generated. The measuring pipe is electromagnetically isolated from the fluid and the measuring electrode by a non-conductive lining (rubber, Teflon, etc.).

Separate Insertion Electromagnetic Flowmeter

insertion type electromagnetic flow meter

Integral Insertion Electromagnetic Flowmeter

electromagnetic flow meter manufacturers



●Low-frequency three-value rectangular wave constant current excitation, not affected by power frequency and various stray interferences on site, the work is very stable and reliable.

●Using the new technology of non-uniform magnetic field and special magnetic step structure, the magnetic field is stable, and the size and weight are greatly reduced, so that the flowmeter has the characteristics of small size and light weight.

●Using special electronic circuit, it has the function of automatic zero reset for air traffic control.

●The range can be modified online according to the actual needs of the user on site.

●No moving parts, no blocking parts. There is almost no additional pressure loss in the measurement.

●Measurement results have nothing to do with flow velocity distribution, liquid pressure, temperature, density, viscosity and other physical parameters.

●Easy to use, only need to connect the power supply after installation, without any other operation, it can output standard signal.


3.Verification method:

The flowmeter method is the so-called flowmeter method, which is a method of calibrating only the measuring head of the plug-in flow sensor of the point flow type, and using the measuring head as a flowmeter.

The flowmeter method is to calibrate the entire insertion flow sensor, including the measuring head, insertion rod, insertion mechanism, converter and measurement pipeline, that is, the insertion flowmeter is regarded as a full pipe flowmeter and calibrated on the flow standard device Find the meter factor.


4.Application range:

Insertion magnetic flow meters are a highly versatile and accurate technology used to measure fluid flow in a wide range of applications. They are ideal for measuring the flow of conductive fluids such as water, acids, and slurries in process control environments. Some common applications include wastewater treatment plants, chemical and pharmaceutical processing, food and beverage production, water distribution systems, and pulp and paper mills. Plug-in electromagnetic flowmeters are especially useful in harsh conditions where mechanical flowmeters may not work optimally, such as high temperature, high pressure, and corrosive environments. Their plug-and-play design is easy to install and maintain, making them a cost-effective and reliable flow measurement solution.


●They are more cost effective compared to full bore flow meters.

●They can accurately measure flowing fluids even at different speeds.

●They can be easily installed in existing pipelines without major modifications.

●They are very reliable and require minimal maintenance.

●They can measure a wide variety of fluid types, including corrosive and abrasive liquids.

The use of insertion electromagnetic flowmeters provides a low-cost, high-accuracy and reliable solution for fluid flow measurement in various industries.


5.Installation conditions:

Plug-in electromagnetic flowmeter sensor installation upstream straight pipe section is not lower than 5D (D indicates pipe diameter), downstream straight pipe section is not lower than 2D:

●Vertical installation. When the sensor is inserted into the pipeline, the angle between the sensor and the vertical diameter of the pipeline section should be less than 5°. It is suitable for measuring clean media with small pipeline vibration.

●Inclined installation, the angle between the axis of the sensor and the axis of the pipe to be measured is 45°, which is suitable for measuring the flow of liquids with large pipe diameters and other impurities in the measurement medium. This installation method has small water resistance and is not suitable for entanglement.

There are two ways to insert the insertion point of the electromagnetic flowmeter sensor: one is to insert it on the central axis of the pipe to be tested (that is, 1/2 times the pipe diameter); the other is to insert it to the inner wall of the pipe at 1/4 of the pipe.


6.Sensor installation:

● Clean up the welding slag and burrs on the installation base of the tube under test.

●Turn off the upstream flow control valve or use low pressure water supply.

● Install the DN50 ball valve on the installation base, pay attention to the long cavity of the ball valve upwards, check whether the ball valve can be fully opened and closed, install the compression threaded seat, compression nut and rubber sealing ring on the ball valve, and loosen the positioning nut , Insert the sensor insertion rod through the ball valve into the pipeline under test, and at the same time, pay attention to the direction of the sensor direction indicator rod should be consistent with the fluid flow direction.


7.Customer Feedback Installation Drawing:

Plug-in electromagnetic flowmeterinsertion electromagnetic flow meter

8.Accuracy table:

Electromagnetic flowmeter accuracy table


9.Our product video:




1. Question: What is the smallest pipe diameter that the plug-in electromagnetic flowmeter can measure?

A: The applicable minimum pipe diameter we manufacture is DN100 (4 inches)


2. Question: How about the measurement accuracy of this type of flowmeter?

A: The accuracy is 1%, the measurement flow rate is stable, and it is easy to maintain.


3. Q: Can I get samples? What is the MOQ?

A: Of course, our MOQ is 1PCS.


4. Q: What is the shipping method?

A: We support express (door to door), air to airport, By sea, railway, etc., also support customer’s own freight forwarder, we can send to your designated China warehouse for free.


5. Q: What is the payment method?

A: We support TT payment, Western Union payment, credit card online payment, LC payment, we also support RMB payment.

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