Bearing Failures
New bearing system keeps circulating water pumps running in a 
nuclear power plant.After 8 years of problem-free operation, a bearing failure forced an outage at a nuclear power plant. When two more...
Cavitation is defined as the phenomenon of formation and consequent implosion of vapor bubbles in a region where the pressure of the liquid falls below its vapor pressure. Cavitation can occur in any...
Offline and online testing can improve reliability and reduce downtime.
Correct equipment selection and application saved an aluminum producer $36,000.
Peristaltic Pumps in the Food and Beverage Industry
Simple maintenance and the ability to clean in place give peristaltic pumps an advantage. Many opportunities are available for peristaltic pump use in food and beverage applications. Peristaltic...
Peristaltic Pumps in the Food and Beverage Industry
Simple maintenance and the ability to clean in place give peristaltic pumps an advantage.Many opportunities are available for peristaltic pump use in food and beverage applications. Peristaltic pumps...
Pumps & Systems, August 2008Progressive maintenance practices are vital to maximize pump life, minimize downtime and avoid costly repairs and lost production. It is good practice to plan the...
Pumps & Systems, March 2007Identifying the source of vibration by following the amplitude: the case of a company that thought the problem was a pump impeller, but, in fact, the problem was over...
 Detecting Pump Cavitation with a Vibration Sensor
Pumps & Systems, June 2007Cavitation is a destructive condition that can destroy the inside of a pump before you even realize it is occurring. Early detection can minimize damage, reduce downtime,...
Regular monitoring and maintenance are vital for continuous and proper pump performance.
Large centrifugal or special pumps
Optimize Pump System Maintenance Budgets
Learn which equipment to target, what information to collect and how to use it effectively.
Pump Commissioning: Alignment, Field Balancing and Startup
Technical expertise and precision can ensure proper operation and minimal maintenance. (Last of Two Parts)
Editor's Note: This is part two of a two part series about the 'commandments' of increasing pump reliability and life.Last month, we discussed Commandment 11, Thou shalt always operate...
Pumps & Systems, December 2008Editor's Note: This is part one of a two part series about the 'commandments' of increasing pump reliability and life. To read the second part, click...
Pump Rebuild Tips
Avoid common mistakes to get the longest life from a rebuilt pump.
Easy Shaft Alignment
Thorough preparation and the right alignment method are critical.
The standards for repair will begin with a standard for vertical turbine pumps.The pump industry is undergoing renewed interest in the technical aspects and quality of repairs. Pump users’...
10 Steps for Proper Pump-Pipe Alignment
The initial version of this procedure was published several years ago by me. Since then, a large amount of feedback has been accumulated. The most recent reflection appeared in the March 2012 issue of...
There is a saying that “You don’t know what you’ve got until it’s gone.” This concept can be all too familiar for anyone who has ever neglected a pump. A dependable pump is not truly...
Repair Standard for Vertical Pumps
Since the original publication of this draft standard in the January 2008 issue of Pumps & Systems, I have received feedback, encouragement, numerous questions and criticism. The draft listed...
Pumps and Systems, June 2009Many troubleshooting guides and charts have been developed to help us understand the nature of pump failures. Although beneficial and well constructed, these handy...
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...
Pumps & Systems, July 2008Routine checkups, a healthy diet, and regular exercise are the prescriptions for a healthy life. The same prescriptions hold true for healthy pumps. Your pumps' "diet and...
Pumps & Systems, April 2007To quickly identify, select and perform effective PM tasks, plants must (1) identify high-risk equipment, (2) develop efficient, effective tasks to manage the most...
Pumps and Systems, February 2007A large refinery or power plant may operate up to a dozen units of the same design, all installed 20 or 30 years earlier. In this mature equipment environment, some...
Removing Water and Particulate Contaminants from Oil
Lubricated machines require clean, dry oil to work properly. Recent studies have determined that as much as 80 percent of all failures and wear problems that hydraulic and lubricated equipment...
 Cost Reductions Through Life Cycle Improvements
More than 15 years ago, a 160 in plate mill was experiencing significant maintenance problems with its descaling pumps; the typical mean time between repairs was only 6 to 8 months. Some rebuilt pumps...
Peristaltic Pumps Waste Less Water in Wastewater Treatment
The ever-expanding Seneca wastewater treatment plant in Eagan, MN required a pump capable of accurately dosing 15 percent sodium hypochlorite ("hypo"). Hypo has outstanding disinfection...
Handling Downtime
While scheduled downtime is different from unscheduled, both can take away from a company. An effective reliability program, however, will minimize unplanned downtime and maximize scheduled...