Centrifugal Pumps Systems Characteristics - Peerless Pump

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Oversized Pump Retrofit Savings • Design is 1000 gpm at 315 ft tdh actual BHP is $48,000 • Valved back to 650 gpm and operating at 420 ft tdh, actual BHP is $40,000 • Resize pump for rating of 650 gpm at 230 ft tdh, actual BHP is $22,300 • The actual cost of resizing pump is $4,560 • The BHP $ savings of $40,000 – 22,300 = $17,700, or payback in 2.5 months!!!!!
Centrifugal Pumps Operating Zones (1) • Overcapcity Zone- The velocities within the pump are usually very high and recirculation occurs causing excessive wear in the presence of solids. The radial hydraulic loads on the impeller increase exponentially within a single volute casing • Recommended Operation Zone-The velocities within the pump are reduced. Recirculation is minimal and the flow in the suction nozzle should be axial( not induced vortex). The radial hydraulic loads are minimized.
Page 1 and 2: Opening Slide
Page 3 and 4: Communication • Production • En
Page 5 and 6: Matching the Pump To the System Ben
Page 7 and 8: 4 3 Loose on Mountings Realign Belt
Page 9 and 10: Maintenance Cost Comparisons Mainte
Page 11 and 12: Hydraulic Match Fit of Pump to Syst
Page 13 and 14: System Head Curve Definition • By
Page 15 and 16: System/Pump Consideration Consider
Page 17 and 18: System Head Variables (2) Friction
Page 19 and 20: Series Pump Operation Pressure Addi
Page 21 and 22: System Classifications Thermal Exch
Page 23 and 24: Removal/Delivery Applications (1) R
Page 25: Pump Characteristic Performance Cur
Page 29 and 30: Centrifugal Pumps General Guideline

Centrifugal Pumps Systems Characteristics - Peerless Pump

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