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Vibration issues with a two-stage pump forced a major steel manufacturer to remove the pump from service. Due to incorrect weights welded on an impeller, a steel manufacturer called upon Hydro to repair and balance a two-stage pump.
Written by: Ken Babusiak (Hydro, Inc.)
Published by: World Pumps
The pump was experiencing the vibration during the spring and summer months of 2016. The steel company sent the pump to HydroAire’s Chicago, IL facility in September of that year. HydroAire was able to determine the cause of the vibration and created a solution that got the pump back in operating condition. The pump was installed and back in service by February, 2017.
The initial testing and analysis deter-mined that the impeller had large weights welded onto it. The steel company was concerned for many reasons, especially because the staff knew that using weights was not the correct way to balance an impeller. This caused the steel manufacturer to question the manner in which the pump had previously been repaired.
Adding weights to impellers is generally not standard practice.
Where not to position the weights.
Hydro was recently featured in a short video produced by ArcelorMittal, the world’s leading integrated steel and mining company, about our combined efforts in saving energy and increasing pump efficiency.
“Water is critical to our operations. ArcelorMittal’s partnership with HydroAire, a Chicago company, helps us work toward one of the 10 sustainable development outcomes: to be a responsible energy user that helps create a lower carbon future.”