How to Pick a Centrifugal Pump Part 9: Over Speeding HVAC Pumps & Motors

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How to Pick a Centrifugal Pump Part 9: Over Speeding HVAC Pumps & Motors

There are times when slightly more capacity or a little more safety factor is warranted in a pump selection. Often we are asked about increasing the speed of the motor above the nameplate rated RPM. There are several things to examine.... 

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How to Pick a Centrifugal Pump Part 1: Designing for Owner Satisfaction

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How to Pick a Centrifugal Pump Part 1: Designing for Owner Satisfaction

Hydronic pumps all do the same basic thing—they circulate water.  So why are there so many different types and configurations? And what criteria determines the best pump for a given application?  That’s what we will be exploring in this series on "How to... 

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How to Read a Pump Curve - Part 3

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 Pump selection can have dramatic impact on the overall operating cost of a hydronic system.  Consulting several pumps curves prior to the selection of a pump is the key to minimizing these operating costs.   In this blog we will discuss the factors that impact pump efficiency and how pump curves can be used to take the guesswork out of efficienct pump selection. 
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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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