Latest Features

Diaphragms in pumps and valves isolate liquid from mechanical components.

These solutions help enhance operational efficiency, profits and safety.
Users must understand the characteristics of their equipment—including seating surface, gasket load curves and manufacturing methods—to reduce the risk of leaks.
Bladder pressure tanks and irrigation systems are prime examples of how lead-lag systems, complete with motor controls, can meet high demand and reduce equipment wear.
Manufacturers and end users should consider how this standard will affect their business.
Operator-driven reliability can extend seal life.
Grinders reduce debris that can cause downtime and pose safety risks.

The Jordan, Knauff & Company (JKC) Valve Stock Index was down 14.7 percent over the last 12 months, while the broader S&P 500 Index was up 14.0 percent.

Modern technology manages water consumption and maximizes efficiency.
This component can compensate for misalignments up to 1/8 of an inch.


In today’s high-volume pumping applications, energy efficiency and cost control are more important than ever.

Michael Lambert

During an economic summit at Sharm el-Sheikh, several members of the Gulf Cooperation Council pledged new investments for Egypt under President Abdel Fattah el-Sisi.


A common myth in the industry is that new pumps are shipped ready to “plug and play.” Assuming their new equipment has arrived fully equipped to run, end users often start new pumps with no oil in the bearings—one of the most common pumping mistakes.

Part 1 of this series (Pumps & Systems, March 2015) discussed what happens to a boiler feedwater (BFW) pump during plant transients.

Last month’s column explored the effects that oversizing a pump has on the motor driving the pump, the adverse results of a pump no longer operating at its best efficiency point (BEP) for extended periods of time and situations in which a design margin could increase cost of ownership.

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

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.


Cahaba Media Group

See also:

Upstream Pumping

© Copyright Cahaba Media Group 2015. All Rights Reserved. Privacy Policy
Your Country
Yes! I also want product and service alerts from P&S's industry partners.