Measurement of flow rates in free-surface flows, particularly in polluted, corrosive or particle-laden wastewater.

DEBITFLO venturi channels are designed for flow measurement in open channels with a free surface in compliance with ISO 4359.
Made from reinforced polyester, they offer excellent dimensional stability, guaranteeing good measurement accuracy.

Level/flow correspondence :
Combined with a level transmitter, they provide a reliable and accurate solution for continuous flow measurement (see datasheet 755-03).
The Level/Flow table is supplied with each Venturi channel.

Approach channel :
For flows up to 100 m³/h, the approach length is integrated into the venturi channel.
The overall installation time is reduced and the quality of the result is optimal.
Over 100 m³/h, the approach channel (1 or 2 parts) may be supplied or not, depending on the installer's ability to make the approach length on site (in concrete structure) accordingly to recommendations and standards. ISO 4359 requires the approach channel to have a minimum length of 5 times its inside width, upstream of the measurement zone, which is itself between 3 and 4 times the maximum height to be measured upstream of the Venturi restriction.

Polypropylene housing: Simplified commissioning
On request, we supply assemblies integrated in a polypropylene housing, ready to connect & install.