Latest Piping Articles

Q. What are the effects of air pockets in a pump piping system, and how can they be eliminated?

A pipeline station and tank farm in the Southwest uses four identical four-stage vertical booster pumps driven by 300-horsepower (hp) electric motors to transfer crude oil between various storage t

My past Pumps & Systems columns (read them here) have dealt with using basic engineering principles to better understand the interaction of pump,

Part 1 of this series (Pumps & Systems, February 2016, read it here) examined the process elements of a piping system,

Using the example system in Figure 1, this series will focus on the process elements found in piping systems.

The quality of the world’s sewage systems in past years has been influenced by four main factors: design of the system of pipes and valves, the design of the pump sump, the operation concept and th

Parts 1 and 2 of this series (Pumps & Systems, September and October 2015) discussed the engineering principles that dictate the operation of various elements of a piping system.

For those of you old enough to remember Lawrence Welk, you’ll notice that the title of this brief column is the final quote from his show’s closing song. I am still a loyal fan of his reruns today.

In my last column (Pumps & Systems, October 2014), I explained that a capacitor’s current is totally out of phase with that of a motor’s magnetizing current.

Regarding the vibration spectrum on page 12 of the February 2016 issue of Pumps & Systems ("Using Pump Efficiency Monitoring to Make Faster Decisions," Figure 1, see image below and re

When a pump operates far from its best efficiency point (BEP) flow—either to the right or to the left—vibration, cavitation, overload and damage to the equipment can result.

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

After reading two of my articles on power pump valves, valve springs and net positive suction head required (NPSHR), Brazilian engineer Ricardo Martuscelli emailed me to suggest that I create

My past Pumps & Systems columns (read them here) have dealt with using basic engineering principles to better understand the interaction of pump,