The Advantages of Using Mag Flow Meters

THE ADVANTAGES OF USING MAG FLOW METERS
22 August 2024

Magnetic flow meters (mag flow meters) offer many advantages over other types of flow meter.

 Such as:

  • Mag Flow Meters hardly impede flow, if at all, and as a result do not cause pressure-drop across the instrument. Insertion magflow meters create a very small amount of pressure drop, compared to an Inline full bore magflow meter, which is close to zero.

  • Mag Flow Meters have no moving parts, which makes them incredibly durable and less prone to blockage. As a result, suitable media includes slurries, dirty water or water with suspended particles. 

Mag flow meters use inductive technology that can only work with liquids that are conductive such as a water media. Therefore, the flow of most solvents and oils, whether they are vegetable or petroleum based, cannot be measured with a mag flow meters. 

A mag flow meter requires the pipe to be completely filled in order to measure accurately, this is an important requirement to consider when mounting the unit. 

Insertion Type Mag Flow Meters

Pulsar Measurement mag flow meters have some special features that many other brands do not: 

  • Pulsar Measurement mag flow meters are predominantly made from a plastics material such as PVC, which makes the meter resistant to corrosion. The plastic body is not some cheap injection moulded structure, but one that is precision machined from a solid block of PVC. 
  • The electrode surface inside a Pulsar Measurement mag flow meter is either Titanium or even Hastelloy, which is also corrosion resistant. 
  • Compared to other manufacturers, Pusar Measurement mag flow meters require a shorter run of straight pipe before or after the flow meter. This can be an advantage when you are limited for space when installing the mag flow meter. 
  • Pulsar Measurement mag flow meters are supplied with a calibration certificate ensuring accuracy of ± 1%. 
  • Mag flow meters are available with a local onboard LCD display and can be connected to a panel mount display/controller. There is also a “blind” option with a simple 4-20mA output. 

Due to the wide range of chemicals compatibility and corrosion resistance, Pulsar Measurement mag flow meters are being successfully used in applications such as: 

  • Water Treatment Plants  
  • Sewage Treatment Plants  
  • Desalination Plants 
  • Chemical handling and manufacture 
  • Swimming pools and aquariums 
  • Mining process such as metal recovery  
Pulsar ISM 5.0 mag flow meter
Pulsar ISM 5.0 mag flow meter

 

Pulsar Measurement's insertion type mag flow meters have some interesting special features. 

The includes what is termed a ‘Hot Top’ design insertion flow meter. This has nothing to do with temperature. 

These mag flow meters can be retracted by a long screw thread through the centre of a ball valve. 

Once the sensor has been retracted back past the ball valve, and the ball valve is closed. This allows the mag flow meter to be serviced without stopping the flow of the process fluid. 

ADM Instrument Engineering has been working with specialised process sensors for over 35 years, and we offer a high level of technical support. Please contact us if you would like assistance in selecting the most appropriate solution for your application. 

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