Goulds Component Cooling Water
Application: Component Cooling Water
Pump Details: Goulds 10x12x17 Model 3405 1-Stage
Pump Type: Single-Stage Horizontal Split Case
When a nuclear power plant experienced repeated problems with their component cooling water pump, including the repeated galling of the impeller wear components, they asked Hydro to evaluate the pump and make recommendations. The pump exhibited excessive vibration and required frequent repair - once every 36 months.
After an engineering evaluation, Hydro proposed several modifications, including upgraded metallurgy to prevent galling as well as a much more stringent balance criteria - 1 W/N. The first Hydro impeller was installed and tested with excellent results, having delivered more flow and head with a reduction in motor amps. The station purchased six additional impellers and all are working fine. The first pump has run in excess of 10 years with no problems.
The practice of just replacing parts can mean missed opportunities for improving a pump's reliability and performance. Engineering review and analysis is an intrinsic part of Hydro's reverse engineering process. Hydro will not just replace the existing part, but will recommend upgrades to extend pump life.
Nuclear Certifications held by HydroAire’s Madison Facility