Plant Upgrades Improve Efficiency at Midwest Refinery
Equipment and technology improvements can be sound investments.
Pumps & Systems, June 2007Most of the electric motor information we use on a daily basis is pretty straightforward. Voltage, amps, efficiency, and service factor are all well understood terms in...
Pumps & Systems, July 2007Last month we took a close look at the flow of voltage and current in purely resistive and inductive circuits. We showed how inductive reactance can inhibit the flow of...
Powering the Pump: Diesel Versus Electric Motors
Make the ideal motor selection for irrigation applications.
Predictable Pump Motor Maintenance at a Cranberry Bog
Due to the delicate nature of the cranberry, pump failure is not an option.When a pump or motor fails at Sea Wind Cranberry Farm in Langlois, Ore., farm manager Knute Andersson's business is at stake....
The Integral Horsepower Motor Rule will take effect June 1, 2016.
InnovationIntroduced February 8, 2008, the RPMAC PM Direct Drive Cooling Tower Motor and VS1CTD Drive for wet cooling towers replaces an existing motor, jack shaft and gearbox with a more efficient...
Super E MotorIntroduced in June 2010, Super-E Motors with AEGIS Shaft Grounding Ring are used in commercial and industrial applications to drive pumps provides a path to ground for circulating...
Proper Alignment of Large Motors & Pumps
 A large utility company confronts alignment of a 5,000-horsepower motor.Installation and setup of a pump and motor can be easy for small systems. Both can be lifted with relatively small...
Protect Operators and Equipment with  Arc-Preventive Motor Control Centers
A strong safety program and preventive equipment are crucial for operator and equipment safety.
Pumps & Systems, June 2007In many pump installations, problems such as jams and suction loss can lead to serious damage to the motor or pump long before the thermal overloads trip. These problems...
Pumps & Systems, October 2007With highly reliable electrical systems, protective relays may be called upon to operate very infrequently. However, the effects of faults and abnormal conditions can...
With highly reliable electrical systems, protective relays may be called upon to operate very infrequently. However, the effects of faults and abnormal conditions can be severe and protective relay...
Pumps and Systems, June 2009Editor's Note: Click here to see a sample alignment data formProper alignment of the pump shaft with the driver can reduce vibration and significantly improve reliability....
Editor's Note: Click here to see a sample alignment data form.Proper alignment of the pump shaft with the driver can reduce vibration and significantly improve reliability. For appropriate...
Pump Noise and Vibration Attentuation
Unanticipated noise and vibration can be problematic for both occupants and processes within structures. Noise and vibration in piping systems can originate at pumps and other mechanical equipment. If...
Last September, we spoke about the importance of pipe-to-piping alignment, evaluating actual numbers, and tabulating stress values as they approach yield stress of pipe at various values of...
  Pumps and Systems, February 2007 Last September, we spoke about the importance of pipe-to-piping alignment, evaluating actual numbers, and tabulating stress values as they approach yield...
Pumps & System, June 2008Bigger Is Better-Or At Least It Used To BeOwing partly to tradition, the shafts of electric motors are often larger than those of the equipment they drive. Engineers were...
Bigger Is Better-Or At Least It Used To BeOwing partly to tradition, the shafts of electric motors are often larger than those of the equipment they drive. Engineers were very conservative a century...
Resonance and Its Effects on Mechanical Structures
Understanding resonance is essential for solving problems of increased vibration. Resonance is a condition that can occur in mechanical structures and can be described as sensitivity to a certain...
Retrolifting Lift Stations with Submersible Motors
In the February 2008 issue, we discussed various ways to lift water ("Lifting Water: What Are Your Pump Options?", Pumping Prescriptions). Starting with the 4,000-year-old Archimedes Screw, we touched...
Safer and Smarter Single Phase Pumps
New motor starting controller provides one solution.Pump systems come in all sizes, from large municipal plants to small residential systems using single phase pumps that are three hp or smaller. All...
Pumps and Systems, June 2009 A paper or an electronic work order system can be used to capture alignment data.                 ...
A paper or an electronic work order system can be used to capture alignment data.   Click here for a downloadable pdf. Click here to read Pump...
Pumps and Systems, June 2009Couplings are often forgotten until a project is nearing its end. With time running out, users often purchase whatever a supplier has in stock instead of the best solution...
Couplings are often forgotten until a project is nearing its end. With time running out, users often purchase whatever a supplier has in stock instead of the best solution for the system....
Water and wastewater systems in the United States use a tremendous amount of power. The EPA estimates that these systems use 50 trillion watt-hours annually at a cost of $4 billion. Combined with...
Pumps & Systems, October 2008 Water and wastewater systems in the United States use a tremendous amount of power. The EPA estimates that these systems use 50 trillion watt-hours annually at a...
Smart Motor Management
Data-driven visibility helps protect industrial processes and motors.Industrial producers typically invest millions in their infrastructure. Despite such investments, many production facilities lack...