Hydraulic Institute Pump FAQs January 2010
Q. I understand the significance for properly configured suction piping, but what are the piping requirements on the discharge side of a rotodynamic (centrifugal) pump?A. The maximum velocity at any...
Internal Joint Restraint for Municipal Applications
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...
Reducing the causes of friction and choosing the proper pump will increase efficiency and cost-savings.Imagine a major-league pitcher standing on the mound. He looks for the signal, nods in agreement,...
Pumps & Systems, August 2008 Polyurethane coating technology is commonly chosen for demanding exterior applications such as bridges, stadiums and other large structures. When maintenance was...
Pumps and Systems, February 2007 Have you ever wondered why the pressure exerted by a column of liquid has absolutely nothing to do with its volume or, for that matter, the geometric shape of its...
Click here for solution to Pump Challenge #4Consider 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....
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...
The siphon is an example of a natural and extremely simple machine that we take advantage of daily.
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...
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...
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 repairing leaking and corroded...