TORPEE-MAG measuring raw water from a dam

 

 

 

CUSTOMER

• SWDE (Société Wallonne des Eaux) is our customer and the main water utility in the Walloon Region of Belgium, serving approximately 2.5 million people through a drinking water distribution network of around 37,000 km of pipes.
• The application concerns two DN900 pipes carrying raw water down from the Eupen dam. The water first passes through a turbine to generate electricity, before being treated and distributed to the region as drinking water.

 

TASK DEFINITION

• The two DN900 pipes were fitted with old electromagnetic flowmeters that had reached the end of their working life and needed to be replaced.
• Access to the metering location was difficult, which made replacing the existing full-bore magmeters a complex and costly undertaking.
• SWDE needed a metering solution that could be installed without cutting the pipes, interrupting the water supply, or requiring major civil works, given the constrained access.
• Accurate flow measurement is essential, since this water is used both to generate electricity and, downstream, to produce drinking water for the region.
• The metering solution needed to be integrated into SWDE's monitoring system.

 

SOLUTION

• Installation of two DN900 TORPEE-MAG insertion electromagnetic flowmeters, replacing the old magmeters without cutting the pipes or shutting down the flow.
• As a hot-tap insertion sensor, the TORPEE-MAG could be installed through a valve, avoiding the complex, costly civil works that the difficult access would otherwise have required.
• Each TORPEE-MAG is connected to a stationary converter, the TMC-20, displaying all information on an LCD screen and transmitting the data via Modbus to the SCADA system of the customer.
• No calibration on site necessary.