IDP series, flow-rate indicators are ideally suited for continuous measurement of flow for air and neutral, basic or acid liquids.

IDP or PDP indicators use the principle of variable area flow-meter: the fluid flow raises a diver in a conical tube, expanding the cross section of the passage of fluid. The diver moves up proportionnaly to the flow-rate.

Standard equipment includes a graduated scale in l/h of water at 20 °C. In options there are specific scales; Air in Nm3/h (1 to 9 bar ABS); HCl at 30 / 33 %; NaOH at 30 % and at 50 %. See the data sheet 730-06

With magnetic diver versions, the Z60 transmission ruler converts the diver position into a 4-20 mA signal. See the data-sheet 730-07

Mounting precautions:
Flow indicators must be installed vertically with rising fluid. It is recommended to have a length upstream of 10 x ND and a length downstream of 5 x DN.