Flow-Tronic - Model TORPEE-MAG -Electromagnetic Insertion Flowmeter

The TORPEE-MAG is a hot tap full profile electromagnetic insertion flow meter. The measurement method is based on Faraday’s Law of Electromagnetic Induction: when a conductive liquid moves through a magnetic field, it produces a voltage. The voltage is directly proportional to the velocity of the conductive medium.

The TORPEE-MAG has multiple electrode pairs placed along the axis of the sensor at equal area of the pipe. The velocity measurements are averaged together providing the average velocity across the pipe. Flow is calculated by multiplying the average velocity by the cross-sectional area of the pipe.

The specific design of the multi-electrode sensor compensates for variable flow profiles, including swirl and turbulent conditions achieving a much higher precision than single-point flowmeters.

The TORPEE-MAG can be installed without shutting down, emptying or cutting the pipe (hot tap installation). It does not require welding flanges and installation can be done in pressurized pipelines up to 17 bar. Cost of installation is largely reduced by  liminating the need for heavy equipment (cranes, etc.) or extensive manpower. The TORPEE-MAG is the most economical flow metering solution for medium and large pipe sensor sizes.

The TORPEE-MAG fits in confined spaces, can be submerged and offers complete accessibility. It can be removed from pipes under pressure for easy inspection, cleaning, calibration or verification and reinstalled without process interruption. It is particularly costeffective for retrofit applications. The maximum number of coils and electrodes will depend on the pipe inside diameter: the bigger the pipe diameter, the more electrodes will be placed along the sensor.