Dosing system test rig gives accurate, user-specific testing

Grundfos Pumps recently installed a new state-of-the-art dosing system test rig, providing increased testing capabilities, in its facilities at Ormeau, Queensland.

Since opening in October 2010, the Ormeau facilities have served as the hub for water treatment engineering and assembly activities throughout Australia. The addition of a new test rig allows for two complete dosing skids to be tested simultaneously, as well as having the ability to perform fully functional testing on any polymer system.

The dosing system test rig.

The increased ability to run multiple water dilution lines at the same time allows for two duty pumps and two dilution lines to be tested together, saving time.

Diaphragm valves on the discharge return lines means the new test rig is better able to simulate on-site conditions and requirements. This feature allows for more accurate, user-specific testing.

The test rig has a flow capacity 10,000 L/h - a significant increase from 5800 L/h. The rig utilises recycled water and to cope with the increased flow capacity, the test water tank has also increased in capacity from 2000 to 5000 L.

Calibrated ifm Efector meters have been installed in the discharge manifolds, with accuracy to 0.3%. This reduces the need for time-consuming, drawdown calibration tests, further increasing efficiency.

Increased electrical flexibility and added safety measures, including emergency stopping, have created a safer working environment for Grundfos staff in Queensland.

Grundfos’ Production Manager in Ormeau, Graeme Weir, said, “Whilst the new test rig has been installed, our old test rig is still fully operational, meaning we have the ability to test three dosing skids during times of high workloads. This will help to ensure timely delivery to customers.”