The Pumps & Systems on Tour project continues at KSB in Frankenthal, Germany on June 5, 2013.
The Pumps & Systems on Tour project continues at KSB in Halle, Germany on June 6, 2013.
The number of compressor and pump package orders in the energy sector has increased greatly over previous years' level due to increased activity in the oil & gas production, transmission and...
The introduction of these impellers allow for a higher range of discharge pressure.
The "Ten States Standards" and other municipal and state codes require submersible wastewater pumps to pass a minimum 3-in spherical solid. This is not a difficult task for many 4-in and larger...
Centrifugal pumps need to be kept in tip-top condition to handle harsh liquid-terminal operations.Without question, liquid storage terminals play an integral role in the ongoing success and relevance...
Maximizing Your Rental Experience
In many cases, users rent pumps to help them meet specific project requirements. The user does not always want to purchase a pump because he may not have the knowledge, manpower or time to service and...
In many cases, users rent pumps to help them meet specific project requirements. The user does not always want to purchase a pump because he may not have the knowledge, manpower or time to service and...
Modern, Large Centrifugal Pumps  Provide Reliability
Considering the pump and complete system can decrease unplanned downtime.
Molding & Resin Improve Wear Resistance
A composite bulk molding compound prevents wear and downtime.
Near-Perfect New Centrifugal Pump Wear Rings and Bushings
New resin and Kevlar bulk molding compound adds strength to pump wear partsFor years, the pump industry has had problems with centrifugal pumps. The continual wear of rings and bushings has been an...
Net Positive Suction Head: NPSHR and NPSHA
In Pumps & Systems January 2007, I wrote an article about cavitation and how a collapsing water vapor bubble can damage an impeller. Since then, I have received a number of requests to address Net...
Newtonian and Non-Newtonian Fluids
How viscosity affects centrifugal pumpsThe Hydraulic Institute published a standard to account for the effects of viscosity of centrifugal pump performance. Effects of Liquid Viscosity on Rotodynamic...
Not All ANSI Pumps Are Created Equal
OEM pumps and parts outperform replicated products, and can save thousands per year in operating costs. Industrial process managers who purchase and maintain pumps are familiar with a marketing...
NPSH: A Characteristic of All Pumps
Note from Terry Henshaw:This is the first in a year‑long series of articles called Understanding NPSH. These articles were originally prepared as class notes for the all‑day seminar on NPSH...
Vast tonnages of oil sands are now being transported as slurries in centrifugal slurry pumps as the first stage of the bitumen extraction process. Similarly sized pumps are also used to transport the...
Oil Sands Pump Performance Testing and Limitations
Many millions are spent in the oil sands industry providing new plants for the production of oil from tar sands. Oil sands pumps are a key component in these expansions.The cost of non-conformance can...
How CFD simulation provides one pump manufacturer with a virtual test facility.Our chopper pump is a centrifugal pump that utilizes a chopping action between the impeller and suction plate. These...
Packaged Pumping Applications and Best Practices
Packaged pumping systems are gaining in popularity due to benefits including ease of installation, single source responsibility and streamlined manufacturing. Packaged systems simplify the...
The City of Hammond, Ind., recently received a large prefabricated housed booster system that will increase flow capacity for nearby residents by pressurizing the potable water from Lake Michigan.Two...
Parallel Pumping (Part One): Parallel and Not So Parallel
Suppose, for a moment, that you are lounging on a beach somewhere in the vicinity of the equator.  If you were to draw side by side two lines in the sand, both heading due north, they will appear...
Last month we explored the effect of the system curve on the output of two identical centrifugal pumps operating in parallel. This month we will review several other factors that can also impact their...
Performance Curves and NPSH Tests
Editor's Note: This is the fourth article the year-long series, Understanding NPSH. To read the previous article, click here. To read the next article, click here.NPSHR Shown as a Single...
Cavitation is defined as the phenomenon of formation and consequent implosion of vapor bubbles in a region where the pressure of the liquid falls below its vapor pressure. Cavitation can occur in any...
Predicting Centrifugal Pump Performance
It is said that old pump men never die—they just lose their prime—and I fear that is partially true. Therefore, before I lose my prime, I thought I'd share some equations with some of you younger...
Pressure gauges are inexpensive components that can predict the causes of poor reliability in centrifugal pumps and prevent costly repairs and downtime.
Proactive Bearing Maintenance
An unexpected bearing failure needs to be understood and seen as an opportunity for improvements.Centrifugal process pumps are workhorses of pulp and paper, oil and gas, chemical and other industries....
Most industrial centrifugal pumps carry a significant capital equipment value. Maintaining them to run close to their best efficiency point (BEP) saves in downtime, repair costs, and overall power...
InnovationIntroduced February 6, 2008, the patent pending Goulds 3196 i-FRAME uses ITT proprietary software to perform continuous temperature and vibration monitoring and alert end users via light...
A recent call to troubleshoot a horizontally-split multistage pump reminded me of my good old days working for an OEM. When an OEM de-stages a standard design, an important engineering step is...