How to Build a Centrifugal Pump Curve Part 5: Net Positive Suction Head

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How to Build a Centrifugal Pump Curve Part 5: Net Positive Suction Head

We are almost finished building our e-1510 pump curve! In this final blog of our series, we’ll introduce positive suction head (NPSH) to our curve and explain what NPSH is and why it matters....

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Avoiding Pump Cavitation in Open Systems: How to Determine NPSHA and NPSHR

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Avoiding Pump Cavitation in Open Systems: How to Determine NPSHA and NPSHR

In our previous blog we explained the physics behind that noisy, destructive phenomenon known as cavitation – the result of too little NPSH at the suction of the pump. Today we’re going to dig a little deeper into…

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Avoiding Pump Cavitation in Open Systems: The Dynamic Relationship Between NPSH, Vapor Pressure and Temperature

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Avoiding Pump Cavitation in Open Systems: The Dynamic Relationship Between NPSH, Vapor Pressure and Temperature

Anyone involved in the design or application of fluid pumping systems is familiar with NPSH or Net Positive Suction Head. We typically equate NPSH with one singular question: Is there enough…

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NPSH Demystified: What Is It and Why Is IT So Critical?

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NPSH.  We know what it stands for—Net Positive Suction Head--but do we really know what it means?  Or why it’s so important?  More often than not, explanations of NPSH begin with confusing terminology and (even worse) confusing equations.  That’s not a good starting point.  The concept of NPSH is.
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