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...
Pumps and Systems, June 2009 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 Alignment: Just the Facts ...
Electric Motor Efficiency Regulations Part One
Integral Hp AC motors Between 1-500 hpThe Energy Independence and Security Act of 2007 (EISA), which restates and broadens the definition of General Purpose Electric Motors, goes into effect on...
Reduced downtime is an added benefit of sustainable procedures.
Discharges flowing through the bearings put motors at risk.
  Maintenance Supervisor Palle Svangren tells Pumps & Systems why Grundfos pumps and motors help make the Crowne Plaza Copenhagen Towers hotel the "Greenest Hotel in the World."
Pumps & Systems, December 2008 In the past year, the rate of acceleration in the cost of raw materials (including steel, iron ore, copper and aluminum) has reached unprecedented levels in the...
In the past year, the rate of acceleration in the cost of raw materials (including steel, iron ore, copper and aluminum) has reached unprecedented levels in the pump and rotating equipment industries....
Consider more than the efficiency rating to select the most cost-effective system for the pumping application.
Eddy current drives offer a cost-effective alternative to VFDs.
A number of choices are available  when connecting pumps, fans and other rotating equipment to an electric motor. There are numerous mechanical and fluid coupling designs and, in some cases, a...
Revisiting the fundamentals of data examination, time and resolution can solve equipment issues before they happen.
Siemens talks with Pumps & Systems about their motors & drives technology, efficiency, and energy conservation.
Siemens discusses one of their new motors.
I hope that my last column (Pumps & Systems, September 2014) provided a clearer definition of power factor and how it can be calculated. Power factor can also be explained using a vector triangle, but...
Enhanced diagnostics provide critical data for reliable, efficient operations.
In my July 2014 column, I demonstrated that three-phase voltage variation can significantly affect several alternating current (AC) motor characteristics. If that variation is large, it can also...
Trusted gateway connections allow for system growth, efficiency and consistent maintenance at Swedish paper mill.
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...
The best option for preventing bearing currents depends on the source of the problem.
The updated regulations may require machine redesign and premium efficiency motors and components.
Price, operating costs and reliability are key factors in any TCO calculation.
These are the details of the snowmaking machines used during the Winter Olympics in Sochi, Russia.
A VFD and a permanent magnet, direct-drive motor replace a gearbox, reduce maintenance costs and provide energy savings.
Previous articles in this series explained how oversized piping systems can have higher operating and maintenance costs. Higher maintenance costs can adversely affect the reliability and uptime of...
Use a mathematical model that estimates vibration at the top bearing of a motor used on a vertical, wet-pit, column type pump.
Guidelines for reduced vibration and information on how a pump’s foundation and operating speed affect the vibration response
COOKSVILLE, Ontario (April 1, 2014) – Stephen Anderson has joined Lafert NA as a new outside salesman with a focus on the oil and gas industry. Stephen brings with him over 30 years of experience in...
Ease of installation, improved algorithms, enhanced displays, onboard communication and other technology make VFDs an ideal and cost-effective solution.