September 2019

Focus on: Pumps & Valves Process, Controls & Plant data were consistent with pump hydraulic results and leak-off rates. The facility prioritised overhaul scheduling accordingly. Further mechanical evaluation is accomplished using infrared thermal imaging, visual inspection of pump, seals, lube oil system, coolers, baseplate, foundation, and grouting. In taking this comprehensive approach to pump performance testing from both the hydraulic and mechanical perspectives, an experienced field engineer is able to then provide the end user with detailed analyses and recommendations relative to in-service pump performance. SONITCENON CNGIREENINGE Field performance testing of critical feedwater pumps provides the owner/operator with quantifiable results and recommendations for their pump(s) in service at plant generation conditions. Proactive periodic testing raises the reliability bar another notch by establishing a benchmark for comparison which removes any question of pump condition. Annual or bi-annual performance testing of a facility’s heart is highly recommended. Figure 2: BFP C1 – Hydraulic results indicating increased clearances. [Sulzer Pump Services (US) Inc, Field Technical Services, 2017] Figure 3: Balance Line Leak off Comparison [Sulzer Pump Services (US) Inc, Field Technical Services, 2017]