A mature community with an aging infrastructure, Beaver Falls, Pa., has faced many challenges. Home to one of the oldest and largest wastewater treatment facilities in Beaver County, the city has been...
Pumps and Systems in Transcontinental Energy Transfer
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...
Design of the pump inlet piping can protect overall operation.
Pumps & Systems, November 2007This past summer I received a suggestion from a Pumps & Systems reader to discuss siphons and their effect on pump head and pipeline flow. If you are like me,...
Because pump systems can be complex, determining the root cause of problems in an operating system can often lead to a hit-and-miss approach that is time consuming and costly. For six years, that was...
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...
The Basics of Pipe Thermal Expansion
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.This article will introduce the...
Theory, Applications and Sizing of Air Valves
Editor's Note: Due to the high number of responses from our readers for more information regarding valve applications in "Surge Control in Pumping Stations" (Pumps & Systems, March 2007), this...
Pumps & Systems, August 2007 How many gallons per minute are REALLY flowing out of that pump? Perhaps the OEM pump manufacturer tested this pump at the factory - or perhaps not. You now have a...
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...
Variable Speed Pump Operation Cuts Energy Costs; System Static Head Reduces Savings
Determining pump speed using the affinity rules can be a challenge.The days of inexpensive electricity are gone. With environmental pressures on the oil, coal and nuclear industries, electricity...
If any silver linings exist for the economic crisis that has gripped the United States since last summer, one is the heightened public and governmental awareness about the nation's need for...
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...
Pumps & Systems, November 2007 New heat activated epoxy-based materials are now being used to repair leaking and corroded pipe work when operations are unable to shut down. One key component in...