Multi point magnetic float level switch
T21
MAGNETROL
T21 tandem models combine the functions of two separate narrow differential level controls in a single, compact, easy to install instrument. Two independent switch mechanisms are employed to provide two actuating levels at least 8" apart, such as high and low level alarm operation.
Model T21 tandem float switches are available with optional cages to help stabilize the floats under turbulent conditions.
The buoyancy force of a process liquid on the float causes the float to move with the liquid surface. The movement of the float moves an attraction sleeve into the field of the switch magnet, pulling the magnet toward the sleeve and actuating the switch.
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