September 2012

The Bernoulli Principle
September 2012
How Important Is Accounting for Velocity Head and Gauge Elevation? (Part 2 of 2)
Top-of-Motor Vibration A simple mathematical model can be used to estimate vibration at the top of the motor in a vertical pump-motor structure.
Characteristics of Centrifugal Pumps Head, performance curve and affinity laws all contribute to the efficiency of centrifugal pumps.
New Progressive Cavity Pump Technology
Grinder/Cutter/Shredder Pump Resolves Sewage Clogs New cleaning and personal disposable wipes can cause major pumping problems.
Grinder Pumps in a Low-Pressure Sewer System A Tennessee community review shows increasingly positive operation and maintenance statistics.
Dry Gas Seal Conditioning Systems Ensure proper gas flow and determine gas quality required for reliable operation.
Stainless Steel Motors In the food industry, stainless steel performs more productively and efficiently.
Plant Upgrades Improve Efficiency at Midwest Refinery Equipment and technology improvements can be sound investments.
Open-Delta Systems Affect Variable Frequency Drives To avoid premature drive failure, proper precautions must be taken when installing VFDs on open-delta supplies.
Maintenance for Dependable Pumping
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Upstream Pumping

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