Magnetic Water Flow Meter

Magnetic Water Flow Meter

Magnetic Water Flow Meter is the electromagnetic flowmeter for water flow rate measurement. Like the industrial sewage pipe.
Magnetic Water Flow Meter is applicable for all conductive liquids, such as Domestic water, industrial water, raw water, groundwater, urban sewage, industrial wastewater, the processed neutral pulp, pulp slurry, etc.

NO.SI-Magnetic Water Flow Meter
PaymentT/T, Paypal
Product OriginShaanxi, China
Shipping PortShanghai/Ningbo/Shenzhen
Lead Time3-5 days after payment received

Nominal pressure

GB 0.6MPa (DN700~DN2200)
GB 1.0MPa (DN200~DN600)
GB 1.6MPa (DN6~DN150)
DIN PN16, PN25, PN40, PN63
JIS10K, 20K, 40K
ANSI Class150, Class300, Class600, others can be customized
MediumAcid, alkali, salt and another corrosive medium in the chemical industry
Medium temperature<60℃
Flow rate0.3~10m/s
Straight pipe requiredUpstream ≥5DN,downstream ≥3DN
Electrode 1Hastalloy B(HB), Hastelloy C(HC),Titanium(Ti),Tantalum(Ta),Platinum(Pt),
Electrode 2Tungsten carbide(WC) (For acid and alkali salt solution)
Installation wayCarbon steel flange (standard), Stainless steel flange(optional)
Body materialCarbon steel (standard),Stainless steel(optional)
Power supply220VAC/24VDC/lithium battery
Signal outputPulse and 4~20mA;(if use lithium battery, without signal output)
Protection proofIP65(compact type),IP67,IP68(suitable for remote type)
Work environmentAmbient temperature:-20~+60℃,Ambient humidity:5%~90%


The measurement accuracy is not affected by changes in fluid density, viscosity, temperature, pressure and conductivity. The sensor induced voltage signal is linear with the average flow rate, so the measurement accuracy is high. Unaffected by the temperature, pressure, density, or viscosity of the liquid. Able to detect liquids that include contaminants (solids, air bubbles)


The converter uses surface mount technology (SMT) with self-test and self-diagnostics.


The bi-directional measurement system can be measured forward flow, reverse flow. There is no need to change or reset the electromagnetic flowmeter when the direction of the pipe fluid changes. The flowmeter with three totalizers: positive total, reverse total, total difference; can display positive and negative flow, and has multiple outputs: current, pulse, digital communication, HART.


The sensor structure of the electromagnetic flowmeter is relatively simple, and it is one of the flowmeters with the lowest energy consumption in the flowmeters. There are no moving parts in the measuring tube and no throttling part that blocks the flow of fluid and does not cause any additional pressure loss when the fluid passes through the flow meter.


The operation of a magnetic flow meter or mag meter is based upon Faraday’s Law, which states that the voltage induced across any conductor as it moves at right angles through a magnetic field is proportional to the velocity of that conductor. A magnetic flow meter (mag Flowmeter) is a volumetric flow meter that does not have any moving parts. No moving parts, that means the Long service life and low maintenance costs.

Industrial Water/Wastewater

Water and wastewater applications include custody transfer of liquids in force mains between water/wastewater districts. Magnetic flowmeters are used in water treatment plants to measure treated and untreated sewage, process water, water, and chemicals. Mining and mineral process industry applications include process water and process slurry flows and heavy media flows.

Chemical industry corrosive liquids

With proper attention to materials of construction, the flow of highly corrosive liquids (such as acid and caustic) and abrasive slurries can be measured. Corrosive liquid applications are commonly found in the chemical industry processes and in the chemical feed systems used in most industries.

Our product is widely used in these industries:

  • domestic water flow meter
  • drinking water flow meter
  • potable water flow meter
  • Slurry Flowmeter
  • Sewage flow meter
  • mechanical flow meter for water
  • Sanitary flow meter
What is a mag meter used for?

Electromagnetic flowmeters also called mag meters or magnetic meters. Mag Meters are volumetric flow meters.
Intelligent electromagnetic flowmeter is composed of a sensor and transmitters.
The product is an induction instrument and operates with Faraday law of electromagnetic,
Induction for a measurement volume flow of liquid medium with conductive rate ≥50 us/cm.
Mag meter is ideal for wastewater applications, or any dirty liquid which is conductive or water-based.
Accuracy over a wide flow range can be as good as ± 0.5% of flow rate or better.

How does a magnetic flow meter work?

Magnetic flowmeters use Faraday’s Law of Electromagnetic Induction to determine the flow of liquid in a pipe. In a magnetic flowmeter, a magnetic field is generated and channeled into the liquid flowing through the pipe. Following Faraday’s Law, the flow of a conductive liquid through the magnetic field will cause a voltage signal to be sensed by electrodes located on the flow tube walls. When the fluid moves faster, more voltage is generated. Faraday’s Law states that the voltage generated is proportional to the movement of the flowing liquid. The electronic transmitter processes the voltage signal to determine the liquid flow.
In contrast with many other flowmeter technologies, magnetic flowmeter technology produces signals that are linear with the flow. As such, the turndown associated with magnetic flowmeters can approach 20:1 or better without sacrificing accuracy. They represent about 23% of all flowmeters sold.

Contact Directly with
Kim Guo

My name’s Kim Guo with the Sino-Inst company for the oversea market, please feel free to contact me
Kim Guo
Oversea Sales Manager