Sewage flowmeter is composed of water level flow sensor (probe) and upper computer (terminal) and communication cable, which is used to measure the volume flow of various sewage in the pipeline and in the channel.

Widely used in municipal water supply, steel, petroleum, chemical, electric power, industry, water conservancy, water resources and other sectors of the volume flow of liquid measurement, especially suitable for channels, small river flow measurement and environmental protection treatment of sewage measurement.

flowmeter in sewage
flowmeter in water pipe

Sewage flow meter products

Wastewater flow meter selection

According to the actual situation on site and the comparison of different flow meters.

  • Electromagnetic flowmeter measurement stability, wide range of applications, can measure a variety of media, but vulnerable to electromagnetic interference. As the diameter of the tube increases, it will become more expensive.
  • Ultrasonic flowmeter low cost, high measurement accuracy, stable operation, easy to install and maintain, the price will not get higher and higher with the increase of tube diameter, but it will get more and more expensive due to the increase of sound range.
  • Open channel flowmeter measurement range is wide, flow measurement is not affected by changes in the medium, but limited by the size of the measurement tank.

Generally speaking, in the case of meeting the open channel installation conditions, flow data is large, effluent flow meter flow can be conveyed through the open channel.

Spit flow meters and tank flow meters are used for related operations. In the actual measurement process, such equipment can meet the measurement accuracy requirements, but also to save energy. It uses self-flow method to convey sewage.

Advantages of Apure sewage flowmeters

  • High Accuracy
  • Measure raw wastewater, effluent, sludge
  • Optional versions available to provide inlet protection for buried pipes or flood-prone areas
  • No flanges, cut lines or welded pipe installations
  • Plug-and-play design – just install and use
  • Improves uptime and reduces pipeline downtime
  • These flowmeters can be installed in wastewater systems, wastewater treatment, storm water storage plants, sewage, surface water discharge systems, cooling water pipelines and various chemical applications


Usually in areas where wastewater needs to be measured prior to the treatment plant or treatment facility.

Yes, the meter is designed to measure the flow of water that does not fill the entire area of the pipe.

The meter works by simultaneously measuring the flow rate and height of the water to determine the volume of water.

Take flange type electromagnetic flowmeter for example, the optional size is DN10-DN1200, support customization

Ultrasonic open channel flow meters can be used to measure the flow in sewers. In the case of very low water flow, it can be paired with a triangular weir. The basic structure is to install a weir slot at the outlet of the pipe, which can be fixed with expansion screws. Finally, the surrounding gap is plugged with structural adhesive. Make sure that there is no water seepage at the connection of the weir trough and the outlet pipe.

As for how to install the ultrasonic nullah runner on the weir trough, it is the same as usual. Only the sewer may need battery power. It also needs to be equipped with a wireless RTU. this is also a way to measure the flow in the waterway when the water flow is very low.

More articles on flow meters:

Electronic flow meter
Ultrasonic flow meter working principle
What is a flow sensor?
Select the right water flow meter for you