Burkert supplies a wide range of electromagnetic flowmeters for a variety of applications in different operating conditions.
Electromagnetic flowmeters operate according to the principles of Faraday’s law, which dictates the relationship between a moving conductor and the voltage it creates within a magnetic field.
A variety of factors need to be considered when selecting the correct electromagnetic flowmeter specification for your application. These include:
- Conductivity of media
- Installation conditions
- Flow velocity
- Ease of use
Electromagnetic flowmeter advantages and disadvantages
- There is no pressure loss
- No moving parts, which improves reliability
- Unaffected by temperature, pressure, density or viscosity of the liquid
- Able to detect liquids that include contaminants (such as solids or air bubbles)
- Cannot detect gases and liquids without electrical conductivity
- A section of straight pipe is required
To measure flow rates in hazardous environments , the Bürkert Type 8045 electromagnetic flowmeter is available with a stainless steel sensor and Alloy C22 electrodes which makes it suitable for applications involving higher pressures (PN16) and higher temperatures (110°C), aggressive fluids (chemicals) and sea water applications.
Size and flow velocity
Different applications require different size flowmeters. Most electromagnetic flowmeters feature a meter size of 15 to 200 millimetres and a velocity range between 0.3 to 10 meters per second. Burkert mag flowmeters range in size, from the low flow volume Type 8051 full bore mag flowmeter, which is ideal for high-precision dosing and filling operations, to the Type 8054/8055 full bore mag fllowmeter for water treatment and general purpose applications.
Installation of electromagnetic flowmeters is easier when applied to circular piping than to rectangular pipe networks because they offer more effective measurements. In straight piping situations, upstream and downstream requirements often differ according to the type of flowmeter. The straight section of a pipe should be a designated distance from the electrodes and the flowmeter face; in both upstream and downstream flow. The Type 8045 is available with G2” process connections (DN06 - DN400) or clamp connections (DN32 - DN100), depending on the specified sensor material.