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Energy Savings with the Correct Duty Point Print E-mail
Written by Jens-Uwe Vogel, VSX-Vogel Software GmbH   

With continuously increasing energy costs, pump manufacturers must provide energy efficient solutions for fluid transfer. Besides hydraulically optimizing current technology, manufacturers are launching a number of new, highly efficient electrical drives and powerful control systems.

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Internal Joint Restraint for Municipal Applications Print E-mail
Written by Douglas Glenn Clark   

Corrosive, aggressive soil had eaten through a 35 year old ductile iron pipeline in the Port of Tampa area, causing a multitude of leaks that could not be repaired. Replacing the rotten pipe with more iron would have been costly and shortsighted. The radical environment required polyvinyl chloride (PVC) piping.

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The Basics of Pipe Thermal Expansion Print E-mail
Written by Marty Rogin, The Metraflex Company   

Materials expand when heated and contract when cooled. Pipes are not immune to these laws of nature, so they will also expand and contract with varying temperature.

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Expanding Business with Video Pipeline Inspection Print E-mail
Written by Richard Lindner, Envirosight, LLC   

Two decades ago, EST Associates, Inc. started operations in Needham, Mass., to provide the New England area with environmental sampling and related monitoring services.

Driven by the demands of a growing customer base including engineering and consulting firms, remediation contractors, local municipalities and wide ranging industries, EST has expanded its capabilities to a new selection of O&M services, site remediation and pipeline inspection programs. John Carlin, president and owner, credits the company's 20 percent growth in profitability during the past few years to EST's ability to capitalize on the area's growing needs.

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Pumps and Systems in Transcontinental Energy Transfer Print E-mail
Written by Dr. Lev Nelik, P.E., APICS   

Massive amounts of energy are used to transfer oil and refined products over long distances. In the United States, several long distance pipelines move gasoline from the refineries in the Southwest to the coastal areas in the Northeast. Pipelines are an efficient, quick, reliable and economic method compared to trucking or boats.

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Solution to Pump Challenge #5: Correctly Sizing Pipe Print E-mail
Written by Dr. Lev Nelik, P.E., APICS   

Click Here for Pump Challenge #5

We will start with the basic formulas to calculate the velocity through the pipe of a given inside diameter D, and flow, Q. Proper coefficients are provided to account for either U.S. or metric units:
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Why Replace It When You Can Wrap It? Print E-mail
Written by Glenn Machado, Belzona, Inc.   
With production time and cash flow at an all time premium, more companies are looking for time and cost saving alternatives to replacing slightly damaged assets. In a refinery, for example, it is common to encounter a leak from a hole in a carbon steel pipe. This may initially seem like a simple repair, which would normally be fixed by cutting the old leaking section of the pipe and welding in a new section. The majority of the time, it is not that straightforward.
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Pump Challenge #5: Correctly Sizing Pipe Print E-mail
Written by Dr. Lev Nelik   

Click here for solution to Pump Challenge #4

Consider a typical ANSI-dimensioned 1x1.5-6 pump, as discussed in the P&S August article. The performance curve showed the BEP flow at around 100 gpm. The ANSI designation 1x1.5 means that the discharge flange is 1 in and suction 1.5 in. Why and how do manufacturers select such dimensions for a particular flow rating? Why did they not select and base their performance coverage charts on a 3x4-8 size for the 100 gpm?
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Corrosion: A Natural Process Print E-mail
Written by Joe Evans, Ph.D.   
About 900 years before Newton formulated his universal gravitational theory, the Greek philosopher Aristotle espoused something different. He believed that all things had a natural place in the universe, so any object that fell to the earth did so because it had a "need" to return to its natural place. He further theorized that heavier objects would fall faster than lighter ones because they had an even greater need to return. We know now that his theory was a bit off the mark, but had he adapted it to corrosion, it could have described the process quite well.
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Top Priority: Aging Water Infrastructure Print E-mail
Written by Walter Wang, JM Eagle   

Infrastructure is in the headlines again thanks to the Obama Administration and its strategy to help create jobs by rebuilding the nation's roads, bridges and water systems. In fact, renewed interest in infrastructure is so high the American Society of Civil Engineers (ASCE) moved up the release of its Report Card for America's Infrastructure. Unfortunately, the news was not good.

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