Automatic flow through mixing unit with water tank for freshwater, which is filled up by a float valve automatically. The electric control prevents a dry running of the centrifugal pump. Furthermore, the FM 15 can control a betonit-silo for optimal density of purging, a adjustable conveying capacity and it is suitable for either blending new purging or circulate/thicken the purging.

Test module for railways point-maschines