Stable and Unstable Pump Curves
A “stable” curve is important for pump operation, especially for pumps in parallel operation. The higher the energy level and the more critical an installation, the more the pump curve could...
Structural Composite Parts
 Composites significantly reduce energy consumption, maintenance costs and repair costs.Today, tremendous effort is made to reduce energy consumption. The Department of Energy (DOE) and the...
Success Story of the Year 2011: Rockwell Automation & Insyght Systems
Rockwell Automation, Insyght Systems & the city of Hamilton grab the winThe 2011 Success Story of the Year competition has been a huge...success. Thanks so much to all the organizations that...
The Benefits of Close-Coupled, Sealless Magnetic Drive Pumps
ChemTreat, Inc., boosts manufacturing efficiency and improves customer service.At some point in the development of most businesses, through hard work and a commitment to customer satisfaction, growth...
The Benefits of Pump Restoration and Coating, Part 2
The Restoration Process—Before and AfterIn the November 2010 issue of Pumps & Systems, this column began a two part series to analyze a study conducted on the Monroe County Water Authority...
Improve pumping system uptime and efficiencyImproving the reliability and efficiency of pumping systems is crucial. The expanding capabilities of operator interfaces (OI) provide a powerful tool to...
The New Wastewater
Modern trash causes big issues for wastewater collection systems.Daily challenges abound for collection system operators and administrators as they work to support the proper operation of their pipes,...
The Power of Wear Rings Part Two: Efficiency
With a 50 percent decrease in clearance, efficiency is increased by 2 to 4 percent.Part One of this series discussed how wear rings impact pump reliability by increasing rotor stability—reducing...
Pumps & Systems, January 2008Last month we looked at possible ways to optimize pumping systems. This month we'll look at some energy efficiency organizations and utilities that have taken on the...
Trends in Variable Speed Technology
Choose the right variable speed motor for specific equipment.Why and how do leading OEMs choose a variable speed motor for their equipment? While rated efficiency has been an important driver in the...
Pumps & Systems, June 2008The rotary lobe pump belongs to the positive displacement pump family. It is a dual shaft pump design with external timing gears, allowing two intermeshing rotors to...
Pumps & Systems, September 2008Editor's Note: This is the fourth part of a series based on Optimizing Pumping Systems: A Guide to Improved Energy Efficiency, Reliability, and Profitability,...
Pumps & Systems, July 2008Pump and System InteractionEditor's Note: This is the second part of a series based on Optimizing Pumping Systems: A Guide to Improved Energy Efficiency, Reliability, and...
Pumps & Systems, November 2008 Editor's Note: This is the conclusion of a series based on Optimizing Pumping Systems: A Guide to Improved Energy Efficiency, Reliability, and Profitability,...
Variable Frequency Parallel Pump Analyzer
There are several ways to control two identical, parallel pumps operating under variable frequency control in pumping applications. One method is to size a single drive to handle both pumps and vary...
Variable Speed Pump Analysis
When selecting a pump for variable speed operation, a number of conditions must be evaluated. For example, will the performance curve allow the range of operation required by the application? Will the...
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...
Pumps & Systems, December 2008Editor's Note: This is part two of a three part series about variable speed pump selection. To read the previous article, click here. To read the next article in...
When we start the pump selection process for a particular application, one of our major concerns is efficiency. If several different models of similar quality meet our conditions, we will usually...
Wireless System Keeps Water Flowing
Lindmore Irrigation District uses Ethernet radios to improve SCADA communications system and pumping efficiency.In many areas of the world, agriculture depends on irrigation. This is particularly true...
Best Efficiency Point and Best Operation Point
Best Efficiency Point (BEP) is the point at which a pump is least prone to failure and its life expectancy is greatest
The Pumps & Systems live webinar series continues with an informative and innovative look at Advanced Design Technology's design system, TURBOdesign Suite.The live event is set for Thursday, Sept....
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...
Technical professionals understand a variety of fluid-transfer performance concepts. The principles have much to do with evaluating if an individual pump will succeed in accomplishing its...
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...
Reciprocating Pumps vs. Multi-Stage Centrifugal Pumps
Navigating the decision to use a reciprocating pump or a multi-stage centrifugal pump
Pumps & Systems, October 2008Editor's Note: This is the fifth part of a series based on Optimizing Pumping Systems: A Guide to Improved Energy Efficiency, Reliability, and Profitability, written...
Pumps and Systems, April 2009Editor's Note: This is the third in a series of five articles based on the Hydraulic Institute's new Positive Displacement (PD) Pumps: Fundamentals, Design and...
Pumps and Systems, March 2009When you think about it, getting people and businesses to acknowledge the benefits of increasing energy efficiency is an easy sell. Are there any people or companies...
Pumps & Systems, February 2009 Editor's Note: This is the first in a series of five articles based on the Hydraulic Institute's new Positive Displacement (PD) Pumps: Fundamentals, Design and...