Bamo Flow Rate Measurement in Open Channel Venturi Channel Debitflo


Bamo Measures Sas has been founded in 1978. Its capital is now 400 000 Euros. Since the beginning, the company has undergone a rapid development centring on industrial pH-meters and conductivity meters. Bamo is now well-known as a leader on the French market.

Since 1990, new developments in the Level Measure have given a new spring in the export. To its own production range, the company holds numerous agencies of foreign companies in Europe and all over the world. So we are offering a complete line with always the best possible service.

Bamo is a company that comes from France. This company selling some product. The product of Bamo such as pH and ORP; Chlorine, disinfection; Data processors; Conductivity; Water hardness; Turbidity; Oxygen; Level; Temperature; Flow; Pressure; Plastic valves; Metal valves.

Flow Rate Measurement in Open Channel Venturi Channel Debitflo

In our standard models, you may choose between 4 types of instruments, with or without approach and tranquilization flumes. They are manufactured in reinforced polyester fibreglass for flow rates from 2 to 2500 m3/h.

For the smallest flow ranges, we can provide a PE module allowing an easiest installation on site. For the greater flow rates we can provide just the Venturi channel, without approach and tranquilization flumes.


Manufactured Venturi channels are dedicated for flow rate measurement in open flumes, and totalization on effluents. They are useful either on waste water, contaminated fluid even with solids/ particles or chemically aggressive.

Venturi channel is a channel with a width narrowing. Correlation exists between flow rate value and the height of upstream fluid when the difference of height between upstream and downstream is greater than 0.25 h.
Flow rate calculation:

Q = (2/3)3/2 √ g Cv be he3/2

Q : Flow rate [m3/s]
Cv : (He / he)3/2
b : Venturi width [m]
h : Effluent height [m]

The curve Q(h) is joined with each Venturi channel.


  • According to ISO 4359
  • 10 ranges
  • From 7 to 2500 m3/h
  • Construction: composite material
  • Easier civil engineering
  • Options:
    • Complete measurement system
    • Logger and transmitter
    • Inserted channel in PE module

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