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Hydraulic Institute Pump FAQs January 2010
		
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
		
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...	

	
           
        	













  



  

    





	
			
Minimizing Pumping-System Friction Loss

	
		

	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,...	

	
           
        	













  



  

    





	
			
Moisture-Cured Coatings for a Water Filtration Plant

	
		

	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...	

	
           
        	













  



  

    





	
			
Pascal's Principle: Paradox Lost

	
		

	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...	

	
           
        	













  



  

    





	
			
Pump Challenge #5: Correctly Sizing Pipe

	
		

	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....	

	
           
        	













  



  

    





	
			
Pumping Solution for Wastewater Efficiency

	
		

	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
		
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...	

	
           
        	













  



  

    





	
			
Siphons and the Siphon Effect: That Sucking Sound

	
		
The siphon is an example of a natural and extremely simple machine that we take advantage of daily. 

	
           
        	













  



  

    





	
			
Solution to Pump Challenge #5: Correctly Sizing Pipe

	
		

	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
		
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...	

	
           
        	













  



  

    





	
			
Tips to Taking Flow Measurements in the Field

	
		

	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...	

	
           
        	













  



  

    





	
			
Top Priority: Aging Water Infrastructure

	
		

	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...	

	
           
        	













  



  

    





	
			
Understanding Pump Fundamentals for an Energy Efficient World (Part Two)

	
		
Pump and System Interaction

	
           
        	













  



  

    





	
	
Variable Speed Pump Operation Cuts Energy Costs; System Static Head Reduces Savings
		
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...	

	
           
        	













  



  

    





	
			
Water Industry Responses to Aging Infrastructure

	
		

	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...	

	
           
        	













  



  

    





	
			
Why Replace It When You Can Wrap It?

	
		

	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...	

	
           
        	













  



  

    





	
			
Working In Situ

	
		

	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...