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Jim Elsey

Pumps
Solutions for Unexplained Pump Failure
Jim Elsey on the mysteries of the twilight zone
Why Cavitation Occurs & Ways to Treat it
Pumps
Why Cavitation Occurs & Ways to Treat it
Why you should be worried about a few bubbles
Pumps
19 Tips and Common Alignment Mistakes
Does your pump have an alignment problem? Part 2
Does Your Pump Have an Alignment Problem? Part 1
Pumps
Does Your Pump Have an Alignment Problem? Part 1
Common Pumping Mistakes
Pumps
The Basics of Suction Specific Speed
NSS describes relationship between speed, flow rate and NPSHr of impeller

Pumps
Best Practices for Strainer Location
Deciding between placing this equipment on the suction or discharge side of the pump.
Centrifugal Pumps
How to Solve NPSHa Problems
Jim Elsey's tips on addressing cavitation.
How to Calculate NPSHa for Systems Under Vacuum
Centrifugal Pumps
How to Calculate NPSHa for Systems Under Vacuum
The equivalent suction lift is equal to the difference between the “vacuum effect” and the net submergence.
Calculate NPSHa for a Closed & Pressurized System
Pumps
Calculate NPSHa for a Closed & Pressurized System
Don’t mistake suction pressure for NPSHa.
Calculating NPSHa When the Liquid Is Above Ambient Temperature
Centrifugal Pumps
Calculating NPSHa When the Liquid Is Above Ambient Temperature
Don't forget to take vapor pressure into consideration.
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