Last year, “Reduce Thrust and Extend Bearing Life” (Pumps & Systems, December 2013) discussed the benefits and some potential pitfalls of adjusting the axial clearance of American National...
The cost of aftermarket pump upgrades are minimal compared to the cost of downtime and repairs.
Analyzing the Impeller Eye
This is a follow-up to my column on predicting centrifugal pump performance (Pump & Systems, May 2011), and offers equations that will enable the engineer to perform a partial analysis of the...
Appropriate equipment selection and best-practice maintenance procedures can make a difference in reliability, service life and production.
Vibration changes can indicate cracks in pump rotating components, which can cause severe malfunction and failure.
Hydraulic Institute Pump FAQs August 2011
Q. Some slurry applications include froth in the liquid, which affects pump performance. What must be done when selecting centrifugal pumps for such applications?A. Froth is an aerated liquid medium...
Hydraulic Institute Pump FAQs December 2011
Q.  How is the axial thrust for an end suction 
impeller calculated?A.  In a horizontal pump, the axial thrust is a net force acting through the rotor on the thrust bearing, including...
Impeller Redesign & Pump Efficiency
Full CFD analysis can improve the operation of high-maintenance pumps.
In construction, mining and wastewater applications, pump choice is critical.
The introduction of these impellers allow for a higher range of discharge pressure.
Q. What are some factors to consider when conducting a life-cycle cost evaluation for a sealless rotary pump? A. There is a substantial first-cost premium for sealless rotary pumps. Depending on...
Specialty Materials Help Improve Pump Reliability and Save Energy
Efficiency degradation in pumps can be related to three areas. Worn clearances between the wear rings of the impeller and the casing can increase leakage and drop the volumetric efficiency of the...
Impellers with this design help pumps achieve the ideal head, reduce wear and improve efficiency.
Structural Composite Parts
 Composites significantly reduce energy consumption, maintenance costs and repair costs.Today, tremendous effort is made to reduce energy consumption. The Department of Energy (DOE) and the...
Engineered composites have become a solution for longer pump life.With the market demanding cheaper prices, most pump manufactures have gone outside the U.S. for the casting of metallic parts....
Success Story of the Year 2011: Rockwell Automation & Insyght Systems
Rockwell Automation, Insyght Systems & the city of Hamilton grab the winThe 2011 Success Story of the Year competition has been a huge...success. Thanks so much to all the organizations that...
Driving down investment, energy and maintenance costs translates into big savings throughout an installation’s lifetime.
With the exception of hard-core pump enthusiasts, most pump users do not have much interest in or the need to get deep into pump design. What makes a five-blade impeller operate differently than a...