Magnetic flow meters are highly effective for a wide range of water-based applications, and they offer exceptional value in the municipal industry. They are particularly well-suited for managing water distribution and wastewater treatment systems. The absence of moving parts in mag meters ensures reliable performance with minimal maintenance, making them an ideal choice for municipal settings where consistent operation and low upkeep are crucial.

Each product has a unique accuracy level, such as our Ultra Mag and FPI Mag products offering up to ±0.5%. Our SPI Mag series offers up to ±2%.

Electromagnetic flow meters are generally resistant to debris due to their design. They can handle suspended solids or debris if the particles do not obstruct the flow sensor electrodes. Larger particles or excessive debris can potentially interfere with the measurement accuracy, necessitating periodic maintenance to ensure optimal performance in challenging environments. Read further in our blog post about deciding which differential pressure meter type is right for you.

The FPI Mag, a full-profile insertion meter, can extend its range in a closed pipe application with a +/- 0.5% accuracy rating and can be easily installed via hot-tap setup on any lay length required. The SPI Mag, a shortened-profile meter, is equipped with a shorter flow sensor rated for a +/- 2.0% accuracy at a fraction of the cost of an FPI Mag; however, each application is dependent on the line size of your application and the application space required for installation.

It’s clear why many engineers favor mag meters for municipal applications, but they aren’t ideal for every scenario. Electromagnetic meters perform best with fluids that have a conductivity of 20 ohm/cm or higher. Therefore, they may not be the most suitable choice for low-velocity applications or fluids with lower conductivity, such as petroleum-based substances.