Flow - Flow switches

Flow switches

Flow switches report whether a minimum flow has been reached in a line and then switch a contact – for example to protect pumps, cooling circuits and lubrication points.

Three designs are available: calorimetric with no moving parts (1 … 150 cm/s in water, up to 100 bar, IP67), piston type for small flows from 0.03 L/min and paddle type for pipes up to DN150 and 1800 L/min, also in stainless steel housings for media up to 250 °C. If you need to measure the flow rather than just monitor it, see paddle wheel and combined sensors.