Q. What information is available regarding bearing minimum loads for pumps? A. All rolling element bearings require a minimum applied load. This ensures that normal elasto-hydrodynamic operation...
The Challenge A paint and coatings plant that produces both cationic paste with pigments and cationic binders without pigments for truck shipment to automotive OEMs was experiencing difficulties...
Executive SummaryWhen assessing the vast chemical industry, it is usually not advisable to deal in generalities. However, as a base for the market's examination, Beth Beloof and Marianne Lines,...
Pumps & Systems, April 2008 Biofuel production is one of the fastest growing sectors of the energy industry. To reduce our dependence on finite energy sources such as petroleum fuels and decrease...
Without question, liquid storage terminals play an integral part in the ongoing success and relevance of a wide array of industries worldwide. They serve a vital role in the global economy as transfer...
Multiple screw pump performance specifications are shown in the table below.Pump TypeFlow Rate GPMPressure Range PSIViscosity Range cStTwin Screw25 - 5,50050 - 1,500Gas - 1,000,000Three Screw1 -...
Pumps & Systems, June 2008Click here for "Focus on Fundamentals" Part 1, Part 2,  Part 4 and Part 5. In the April and May 2008 issues, we looked at centrifugal pumps....
Pumps and Systems, July 2009Organizations affected by regulatory requirements to remove lead from pipes, faucets and plumbing fixtures are likely well-down the path of investigating material options...
Q. We recently purchased several magnetically driven rotary pumps for our process and want to know if we need to be aware of any special operational considerations. A. The operation of magnetically...
Pumps & Systems, April 2007 Rotary screw pumps have existed for many years and are manufactured around the world. More demanding service requirements impose challenges on screw pump...
Pumps and Systems, February 2007 During the mid-1970s, Dr. Adriano Mischiatti, Ph.D., C.E., conceptualized a magnetically coupled turbine pump in his college thesis. The concept has proven...
High energy prices pose an unprecedented profit-robbing threat to every manufacturing operation, large or small. Left unmanaged and unchecked, rising energy expenditures can erode a company's...
Hydraulic Institute Pump FAQs August 2010
Q. What is the preferred method for starting reciprocating power pumps?A. Starting a reciprocating pump with a closed discharge valve is naturally difficult due to the high torque required to overcome...
Pumps & Systems, December 2008Q.Our office building has a pump room in the basement, which causes sufficient noise to be bothersome to the people in the office above it. What can be done to reduce...
Q. Must multiple pumps operated in series or parallel be identical in size? A. No, they do not have to be identical. However, pumps intended to operate in series must be close in size regarding...
Hydraulic Institute Pump FAQs February 2010
Q. We have an application for pumps handling hot oil at 700 deg F. What special care should we take in selecting and installing such pumps? A. Pumps for handling oils within the range of 150 deg...
Pumps & Systems, July 2007 Q. What is a jet pump? I do not see any reference to it in your standards and would like to learn more about it.A. A jet pump is actually a venturi nozzle or...
Pumps and Systems, July 2009Q. Simplicity and low cost make rotary pumps a good choice for some applications. Is there a simple guide to the maximum flow rate and discharge pressure for which such...
Hydraulic Institute Pump FAQs June 2011
Q. When purchasing rotodynamic (centrifugal or vertical) pumps, how can we estimate if the efficiency of the proposed design is the best to be expected for our application?A. The Hydraulic Institute...
Pumps & Systems, October 2008Q.What is a free standing baseplate and when should it be used? Are there any special design requirements?A.A free standing baseplate is designed to properly support a...
The Challenge"Inaction is the riskiest response to the uncertainties of an economic crisis. But rash or scattershot action can be nearly as damaging."So begins "Seize Advantage in a Downturn,"...
 Sealless magnetically-coupled (mag-drive) pumps are found throughout the process industries for a variety of hazardous liquids. Like pumps with conventional shaft seals, there are more mag drive...
For the non-expert in pump technology, selecting the most appropriate pump technology for a specific application or process system can be challenging because many of today's pumps are so...
The ChallengeAt their simplest, metering pumps are used to inject liquids at precisely controlled, adjustable flow rates, which is a process called metering. As defined by the Hydraulic Institute's...
Metering Pump Application and SelectionA wide range of metering pumps has been developed to fit the diverse applications in process engineering. Before selecting a metering pump, consider the...
By most definitions, metering pumps handle small or low flow volumes that are precisely dispensed at pre-set intervals. Most metering pumps, however, need to vary flows either manually or through some...
Q. What are some ways to monitor the power used by a rotary pump? A. Instrumentation and systems can be used, such as: Torque meter—The most direct way to monitor power is a torque meter with...
Non-Metallic Mag Drive Pumps: Great Equipment for Aggressive Fluids
Non-metallic magnetic driven gear pump technology improves equipment life and maintenance costs for metering and transfer applications.Finding an efficient and economically feasible way to transfer...
A power company in the Atlanta, Ga., area wanted to replace its older, coal-fired electric generating units with gas turbine, combined cycle technology to reduce nitrogen oxide (NOx), sulfur dioxide...
Pumps and Systems, July 2009   Within the personal care products industry, changing formulations on a frequent basis to meet marketing requirements can be costly and time consuming in terms...