Columns and Blogs

One big industry focus in 2014 will be training and education. Expect Pumps & Systems to be heavily involved.

KAMP-LINTFORT, Germany (June 7, 2013) – Almatec was founded in 1984 by Dirk Budde, an industrial engineer who was working for another pump company when he decided to branch out and create his own pneumatic-pump product line.

This article was written in response to the following question from a reader:

In my opinion, the system curve is the single most important component of the pump selection process. After all, the system curve determines the operating point on a pump’s performance curve.

Here is a look at some of the innovative products and services on display at WEFTEC 2013.

The editors of Pumps & Systems recently attended the 42nd Turbomachinery and 29th International Pump Users Symposia (Pump & Turbo 2013) at the George R. Brown Convention Center in Houston.

Pump designers know that designing a complex pump is easier than designing a simple one. Having my own roots in design, I know how tempting it is to add another feature and a tweak to a pump design.

In the February 2010 issue of Pumps & Systems, I discussed my Suction Specific Speed (S) Calculator and its ability to predict the stable range of flow for a particular centrifugal pump.

For the first time anywhere, read about the pumps, motors, seals and other ancillary features specially designed and engineered for this deep tunnel project.
PARIS – The smelly sewage of Paris once festered within the cracks of the streets’ cobblestones, dumped out of windows from chamber pots. Today, Paris has a practically invisible sewer network that is an underground city.

HALLE, Germany (Aug. 22, 2013) – The problem is big.

I received interesting (and challenging) feedback from our readers on “Resonant Frequencies, Part 1” from the July issue of Pumps & Systems.

About 60 percent of scheduled maintenance checks on valves and motors in these systems could be avoided with a systems approach to efficiency.

A reciprocating power pump, as depicted in Figure 1, is a displacement machine. It has characteristics that are different than a centrifugal pump.

In the August 2013 issue of Pumps & Systems, I presented a summer pump quiz about cavitation. This column includes the solutions to the cavitation quiz.

In 2012, I wrote a six-part series on centrifugal pump efficiency. In Part Five, I touched on the importance of the breadth of efficiency and how it can be more useful than the peak best efficiency point (BEP).

Let’s start with the basics: boiling is the vaporization of liquid. In a kitchen, water boils at high temperature—100 C (212 F). These temperatures are at atmospheric pressure, however.

You have probably noticed that three-phase motors can have a varying number of leads exiting the junction box. The most common numbers are three, six, nine or twelve.

Pumps & Systems, July 2013

Pumps & Systems, July 2013


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