The industrial line includes instruments for the measurement and control of fluids, liquids or gaseous, to be used in the pipelines of the plants or on the machines.
The various types of flow indicators are divided into:
Flow switches, Electronic flow switches, Digital flow switches, Atex flow switches, Flow meters, Visual flow indicators.
Electronic flow switches are two-state devices (open or closed of a switch) used to detect a specific flow rate value of a fluid.
Unlike the flow meter, the flow switch is unable to perform any measurement. The device actually has an activation threshold value, normally spaced from the deactivation value by a suitable hysteresis, designed to limit the unwanted effects of switching around the threshold value. In order to carry out instantaneous flow measurements, a digital flow switch is used.