SI-3107 Insertion magnetic flow meter

Insertion Magnetic Flow Meter, also called Insertion type Electromagnetic flow meter. Insertion style flow meter, measures the flow velocity of conductive liquids in large diameter pipes.

Insertion magnetic flow meter, with easy installation, is suitable for use with conductive fluids,
including water, raw sewage, wastewater, clarified water, RAS, and WAS. Available process connections include hot-tapped, DIN and NPT threads



±1% of read,velocity >0.3 m/s

Temp. range



1.6 MPa

Flow rate


Straight pipe required

Up stream≥5DN, down stream≥3DN

Features of Insertion magnetic flow meter

Insertion magnetic flow meter is a new fluid flowmeter developed based on pipe magnetic flowmeter. SI-3107 Insertion electromagnetic flow meter is composed of insertion sensor and flow converter. Insertion magnetic flow meter can measure the conductive liquid that electrical conductivity is greater than 5 us/cm. It is used to measure the water, sewage, acid, alkali and other medium. Suitable for measuring the large pipe of diameter DN300~DN3000mm. Installation can be divided into a online installation type of the cut-off valve, and water control type without stop valves. Pipeline electromagnetic flowmeters are difficult and expensive to install on large pipelines. Plug-in electromagnetic flowmeters use thermal openings and pressure installation technology. Plug-in magnetic flow meters can be installed without shutting off pipes or stopping fluids.
  • Medium temperature can be -20℃~60℃.
  • Integrated vertification,diagnostic function and empty pipe detection.
  • Measure forward and reverse direction flows.
  • Easy to install and it can be installed without shutting down the process.
  • Dual frequency excitation and stable zero point.
  • Precision coil winding technology,makes magnetic field more uniform.
  • High protection grade,IP65,IP68.
  • No moving parts,no pressure loss.
  • High accuracy: ±1% of reading
  • Simple structure, no moving parts, long service life.
  • Don’t need lining, don’t need ground ring, small volume, light weight, convenient installation.
  • Insertion electromagnetic flow meter with stop valves can realize the installation, dis-assembly. Thread Ball Valve Type; Flange Ball Valve Type.
  • Easy maintenance and maintenance when continuous streams.
  • Flow measurement is only related to insert depth, so wide commonality, strong interchangeability.
  • A model can be applicable to all kinds of pipe flow measurement requirements

Specifications of Insertion magnetic flow meter

Insertion Electromagnetic Flow Meter SI-3107
MediumWater, sewage water, acid, alkali etc.
Diameter (Special specifications can be customized)DN100~DN3000mm
Accuracy±1% of read
Temp. range-20~+150℃
Pressure1.6 MPa
Flow rate0.5~6m/s
Straight pipe requiredUp stream≥5DN,down stream≥3DN
Electrode316L,Hastelloy C(HC),Titanium(Ti),Tantalum(Ta),Platinum(Pt)
Installation wayWithout a ball valve or with a ball valve
Body materialStainless steel
Power supply220VAC/24VDC/Lithium battery
Signal outputPulse output,4~20mA
CommunicationRS485,Hart, GPRS etc.
Explosion proofNo
Protection classIP65(compact type), IP68(remote type)
Working environmentTemp. Range: -20~+60℃,humidity: 5%~90%

Flow rate    Q=πD²×V×0.0036÷4

Size(D) mmFlow rate (Q)   unit (m3/h)
V = 0.5 m/sV = 1 m/sV = 6 m/sV= 10 m/s

Order Guide of Insertion magnetic flow meter

In addition to regular products, we support customization

SI-3107-         Note
DiameterDNXX        DN200~DN3000(mm)
StructureF       Remote type (standard with 10m cable)
Y       Compact type
     S     316L
     T     Titanium(Ti)
 Electrode D     Tantalum(Ta)
     C     Hastelloy C(HC)
     P     Platinum iridium alloy
      1    110~240V AC
 Power supply 2    24V DC
      3    Lithium battery(without output signal)
 Output signal 0   No output
   1   4-20m/pulse output
        H  HART Protocol
 Communication   R  MODBUS RS485
        G  GPRS
 Installation way    J Without a ball valve
     B With a ball valve

Applications of Insertion magnetic flow meter

The SI-3107 Insertion magnetic flow meter is designed for use with conductive fluids,
raw sewage,
clarified water,
and WAS.
Available process connections include hot-tapped, DIN and NPT threads.


March 21, 2019 at 10:08 pm


Thanks for your quick responce.  This Insertion type mag flow meter really works well in our wastewater pipes.

Insertion Magnetic Flow Meter Principle

How does a magnetic flow meter work

Faraday’s Formula
E is proportional to V x B x D where:

E = The voltage generated in a conductor
V = The velocity of the conductor
B = The magnetic field strength
D = The length of the conductor

The working principle of the insertion magnetic flowmeter is Faraday’s law. When measuring flow, a liquid flows through a magnetic field perpendicular to the direction of flow and induces a voltage proportional to the average flow rate (volume flow). Its induced voltage signal is detected through two electrodes that are in direct contact with the liquid. Voltage signal will be transmitted to the smart transmitter through a dedicated cable. The smart transmitter performs calculations based on the magnitude of the electric potential and the mathematical model of the electromagnetic flow. And converts it into a flow signal for on-site display. Including instantaneous and cumulative quantities can be display. Then output the standard 4 ~ 20MA and 1 ~ 5VDC signals to the flow secondary meter or DCS.

Drawings for Insertion Magnetic Flow Meters

Flange Ball Valve Seperated Insertion Type
Flange Ball Valve Seperated Insertion Type
Thread Ball Valve Integrated Insertion Type
Thread Ball Valve Integrated Insertion Type

Magnetic Flow Meter for Chilled Water

Flow Meters for water for cooling, spraying, seals, mixing, deburring, and washing.

The cooling water flow meter is used to measure the cooling water flow rate. Cooling water flow meters are commonly used in cooling water towers, circulation systems, pipes, tanks, and pumps. Cooling water flow meters are important for industries like: Power Plants, Pump stations. Sino offers right technologies to meet all these situations. Insertion turbine and insertion magnetic flow meters are easy to install in new or existing systems. Clamp on ultrasonic flow meters can be applied to a variety of pipe diameters,No need to modify the pipeline. Vane type flow meters, like tubrine, have better stability. There are several factors to consider when selecting a measurement technology for a cooling water. Depending on the requirements of your application, other meters may be better suited.

Sino-Inst supplies a wide range of flow meters for use with cooling water, if you need any further help or information, please contact us.

Magnetic Flow Meter Manufacturers

Sino-Inst is a Professional flowmeter manufacturer from China. Sino-Inst offers over 100 flow meter products. About 30% of these are magnetic flow meters, and others are turbine, vortex, ultrasonic, and mass flow meters. A wide variety of flow meter options are available to you, such as free samples, paid samples.
In order of usage, water/wastewater industry, chemical. Food and beverage, oil and gas (although not for oil and gas fluids but in support of the processes). Power, pulp and paper, metals and mining, and pharmaceutical.

Techincal Support

Water Flow Meter Types

Water Flow Meter Types

Water flow meter types are: Electromagnetic (magnetic), Turbine, Ultrasonic, and DP. Coriolis and Oval Gear flow meters can also work for water flow measurement.

Flow Meters for Domestic Water-Potable Water-Drinking Water

Flow Meters for Domestic Water

Potable water flow meter also called Drinking water. Potable water flow meters are important for Domestic industries. Accurate flow measurement is essential to cost-conscious drinking water and potable water system. From water storage, transmission lines to raw water, water treatment and more. Reducing costs and improving flow control is on everyone’s mind. Depending on the requirements of your domestic water applicaiton, there are lots of options. Including: Insertion and inline electromagnetic flowmeters.

Wastewater flow meter

Wastewater flow meter

Wastewater Flow meters are flowmeters for water and wastewater treatment. Electromagnetic flow meters are suitable for open channel and underground industrial water pipes. Magnetic flow meters can be Remote type, compact type, insertion type. And ultrasonic flow meters are another choice, if you can not change your pipes. Both ultrasonic flow meters and magmeters are inline flow meters.

digital water flow meter

Digital Water Flow Meter

Digital water flow meter, is the electronic flow meter, which display the flow rate of water. Different Industrial liquid, different pipe for 1 inch, 2 inch, use different flow meters. The different sensors include turbine, ultrasonic, orifice plate, venturi, or with shut off switch. All these flow meters, with LCD display, 4-20mA output, or other outputs. The different designs of the flowmeters have a variety of applications.

Related Products

SI-3101 Electromagnetic Digital Water Flow meter
SI-3101 Electromagnetic Digital Water Flow meter
SI-3102 Remote type electromagnetic flow meter
SI-3102 Remote type electromagnetic flow meter

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Insertion Magnetic Flow Meter
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