NPSH

If you select or troubleshoot a centrifugal pump on a water curve and then run it on a viscous liquid, you can miss duty, trip the motor, and create avoidable downtime.

60-Second Summary (For Maintenance & Operations)

• Water curves are not "wrong"; they are just not your fluid.
• Viscosity typically reduces flow/head, collapses efficiency, and can push absorbed power into overload.
• The only defensible way to predict performance (within limits) is to correct the water curve using ANSI/HI 9.6.7, point-by-point...

A centrifugal pump curve is the fastest way to stop guessing and start diagnosing. If you can read the curve, you can tell whether your pump is sized correctly, where it should run, how much power it will pull, and whether cavitation or seal failures are "baked in" by the operating point. This guide shows you how to interpret the four lines on a typical performance chart—then how to use them to make plant decisions that save energy and prevent failures.

Key Takeaways

• Myth Buster: Pumps do not create...

La curva de bomba centrífuga es la forma más rápida de dejar de adivinar y empezar a diagnosticar. Si sabes leer la curva, puedes determinar si tu bomba está correctamente dimensionada, en qué punto debe operar, cuánta potencia consumirá y si la cavitación o las fallas de sellos están "predeterminadas" por el punto de operación. Esta guía te muestra cómo interpretar las cuatro líneas de un gráfico de rendimiento típico y, luego, cómo usarlas para tomar decisiones en planta que ahorran energía y previenen...