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Centrifugal Pump Minute

All things relating to centrifugal pumps

Griswold's platform to provide educational resources for centrifugal pump technology and industry news.

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Centrifugal Pump Minute

The Griswold "Centrifugal Pump Minute" blog is the go-to platform for all things relating to centrifugal pumps. Posts focus on providing educational resources for centrifugal pump technology, but also touch on other relevant industry news.

Featured Posts

NPSHA

Installation & Operation

Determining available system NPSHA

In this Centrifugal Pump Minute, James Farley, Griswold Product Manager, reviews how to determine available system NPSHA for a pump that is installed and operational.

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Operating at Best Efficiency Point

Installation & Operation

How to Measure Total Dynamic Head

In this Centrifugal Pump Minute, James Farley, Griswold Product Manager, discusses total dynamic head, and its importance when assessing a pumps performance in the field.

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CPM Posts

Welcome to the Griswold Centrifugal Pump Minute Blog

At Griswold, we’re known as the global experts in centrifugal pump technology. Personally, we enjoy being known as the industry thought leaders, and believe this reputation sums up our evolution and efforts over the past few decades. However, we also recognize that in order to build on a company legacy that dates back over 70 years, we need to better share our unmatched application knowledge and technical capabilities with the world.
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Determining available system NPSHA

In this Centrifugal Pump Minute, James Farley, Griswold Product Manager, reviews how to determine available system NPSHA for a pump that is installed and operational. Using the calculation needed to determine NPSHA, James presents example tests that will establish system performance and possible pump cavitation.
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Affinity Law RPM

In this Centrifugal Pump Minute, James Farley, Griswold Product Manager, discusses the Affinity Law formula that can be used to predict pump performance when changing speeds. Using the Griswold test lab, James provides a real-world example of the accuracy of the Affinity Law.
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Affinity Law Impeller Trim

In the first part of this two-part Centrifugal Pump Minute, James Farley, Griswold Product Manager, discusses the pump Affinity Law and how to apply it. James then uses the Affinity Law to estimate a pumps performance when the impeller diameter is changed.
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Operating at Best Efficiency Point

In this Centrifugal Pump Minute, James Farley, Griswold Product Manager, discusses best efficiency point and a good target for efficient pump operation. Using the Griswold test lab, James shows what factors affect pump efficiency, and how to optimize the performance of your pump.
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