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...
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...
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...
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...
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...
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...
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...
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....
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...
