Columns and Blogs

ITT Goulds Pumps continues its worldwide effort to celebrate pumps as the “heart of the industry” with several activities leading up to April 10, 2012, which it is declaring an official Pump Appreciation Day. Pumps & Systems has joined this effort.
(Feb. 14, 2012) Thanks for all the kind; productive; and in some cases, critical feedback about our January 2012 feature, “The History of Pumps.”
How repair standards should be evolving
In this multi-part series, we will investigate several aspects of centrifugal pump efficiency. First of Five Parts
The McGraw-Hill scientific dictionary [5] states that a volute is "a spiral casing for a centrifugal pump... designed so that speed will be converted to pressure."
Specific speed is a concept developed for water turbines1 in 1915, which was later applied to centrifugal pumps (Stepanoff, 1948). Specific speed is a way to “normalize” the performance of these hydraulic machines.
Tackling 4,000 years of pump technology and evolution in only eight pages of magazine space has been like trying to summarize War and Peace in one sentence.
Temperature changes can push pipe force beyond safe limits
Keeping a close eye on pump efficiency can lead to energy savings.

It's a New Year, time to make those New Year's resolutions.

One of the major impacts on motor life is common sense—or maybe the lack thereof!

Strengthening of bent shafts is a tricky and controversial process.

There are several ways to control two identical, parallel pumps operating under variable frequency control in pumping applications.

These days, the importance of a fresh water supply and safely-treated wastewater return to the river cannot be overemphasized. No matter how hard we try, we are still a long way from the most efficient, economic and reliable ways to ensure that our cities are properly equipped and ready for the clean water challenge.

This month we will quickly look at the load types that comprise a typical AC circuit.

How viscosity affects centrifugal pumps

As a follow up on my AC Motors series, I thought it would be a good idea to provide a short overview of work, power and torque as it applies to the AC motor.

Last month, we studied the properties and effects of resistive, inductive and capacitive loads in an AC circuit.

As a follow up on my AC Motors series, I thought it would be a good idea to provide a short overview of work, power and torque as it applies to the AC motor.

When selecting a pump for variable speed operation, a number of conditions must be evaluated.

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