Net Positive Suction Head: NPSHR and NPSHA
Addressing Net Positive Suction Head (NPSH) and its relationship to cavitation
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...
Best Efficiency Point and Best Operation Point
Best Efficiency Point (BEP) is the point at which a pump is least prone to failure and its life expectancy is greatest
Despite a downturn resulting from oil prices, the area will continue construction for international events and population increases.
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...
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...
Pressure gauges are inexpensive components that can predict the causes of poor reliability in centrifugal pumps and prevent costly repairs and downtime.
Editor's Note: This is the second article the year-long series, Understanding NPSH.  Definition of NPSHThe margin of pressure over vapor pressure, at the pump suction nozzle, is Net Positive...
Pumps & Systems talks with Klaus Barmann about the history of KSB.
The Crowne Plaza Copenhagen Towers helps set new standards for sustainability, while the Grundfos Dormitory project is a living laboratory for circulator pump research.
Gain Efficiency with Volute Design
Simplify the design and analysis of this complex component.
The chemical and petrochemical industry in the Middle East and North Africa (MENA) has grown significantly during the last decade. The region has emerged as a well-known supplier in the global market,...
Magnetic couplings improve reliability and safety when pumping hazardous fluids.
Despite their simplicity, centrifugal pumps often experience repeat failures that even seasoned maintenance and reliability professionals have trouble preventing. This four-part series explains the...
VFDs and sensorless technologies are often the best solution for controlling and protecting a centrifugal pump system against failure.
This four-part series explains the reasons behind repeat pump failures and uses a real-world field example involving boiler feedwater pumps.
Reconstruction and infrastructure upgrades require pumps made from durable materials.
Success Story of the Year 2009
The International Paper plant in Courtland, Ala., had experienced problems with a white water pump on a paper machine since the plant installed the pump in the late 1970s. The problem pump experienced...
Fighting Falling Lake Levels with an On-Shore Centrifugal Pump Commerce, Texas, relies on nearby Lake Tawakoni for supplying water, but falling lake levels were creating problems for its vertical...
Many publications discuss the causes and cures of cavitation, but few address the reason those bubbles are so destructive. Boiling is the precursor to cavitation in a centrifugal pump. Boiling is not...
Q.We have recently installed several double suction between bearing pumps and would like to verify that their vibration levels are within acceptable limits. How should this be done, and what is an...
An OEM and an end user had installed a number of large, double-suction pumps for a water pumping station project (Figure 1). Soon after, they began to suspect that the pumps were a significant...
The pumping operation experienced an 80-percent reduction in energy use.
Many options are available to meet industry and application requirements.
Appropriate equipment selection and best-practice maintenance procedures can make a difference in reliability, service life and production.
 HAMPTON, Va. (Feb. 2, 2012) - Ruhrpumpen, a pump technology company, opens new Service Center Facility in Hampton, Va. This new Ruhrpumpen facility adds one more full-service location to its...
OLATHE, Kan. (May 31, 2012) – Ingram’s Magazine, Kansas City’s long-form business publication, selected Grundfos to top its list of “Best Companies to Work for in Kansas City.” Grundfos was...
This article is part of our ongoing series on The History of Pumps. During the past few years, I have written articles about scientists who have contributed to our understanding of hydraulics....
Correctly selecting and installing the ideal component provides significant health, environmental and economic benefits.