The Claude 'Bud' Lewis Carlsbad Desalination Plant in Southern California uses reverse osmosis to produce more than 50 million gallons of drinking water daily.
One facility’s high-speed centrifugal pumps saw improved performance and efficiency after adding custom seals.
Q. What are the advantages and limitations of a sealless pump design? A. A sealless pump is used when there is a need to contain toxic, dangerous and/or valuable fluids. Application may be...
Most experts agree that the majority of centrifugal pump problems occur on the suction side of the pump. Based solely on my experience, I would state the percentage is at least 80 percent, and in the...
The mechanical seal system, among other features, reduced downtime at the Wisconsin plant.
Understanding this complex topic can help end users avoid common pitfalls.
Read the first part of this article here. Incorrect piping can result in hydraulic instability and cavitation in a pump system, among other problems. To prevent cavitation, the focus should be...
Sealless pumps improve reliability and safety when pumping hazardous fluids.
The 77 pumps at the Puralube Zeitz site leverage progressing cavity and centrifugal pumps to recycle used oil into more than 140,000 metric tons of base and mineral oil products.
Specialized centrifugal pumps handle liquids with up to 70 percent gases.
First of Two Parts Centrifugal pumps are commonly used for most liquid pumping services. For viscous liquids, positive displacement pumps often perform better. However, many engineers specify...
The Middle East and North Africa are home to one of the world's most sophisticated storage-terminal networks for refined petroleum products. The market is ripe for significant investment and...
Magnetic couplings improve reliability and safety when pumping hazardous fluids.
The chemical and petrochemical industry in the Middle East and North Africa (MENA) has grown significantly during the last decade. The region has emerged as a well-known supplier in the global market,...
VFDs and sensorless technologies are often the best solution for controlling and protecting a centrifugal pump system against failure.
Despite their simplicity, centrifugal pumps often experience repeat failures that even seasoned maintenance and reliability professionals have trouble preventing. This four-part series explains the...
This four-part series explains the reasons behind repeat pump failures and uses a real-world field example involving boiler feedwater pumps.
Reconstruction and infrastructure upgrades require pumps made from durable materials.
Q.What are “nonclog pumps,” and in what applications are they used? Figure 1. Dry pit pump – overhung flexibly coupled vertical end suction A. “Nonclog pumps” are rotodynamic...
Customers’ focus on efficiency and new techniques drives better ice quality in water and beverage markets.
This is the first article in a four-part series. Four part 2, click here. Second only to electric motors, centrifugal pumps are usually the simplest machines in a typical process plant. Pumps...
These recommendations will ensure consistent, high lifts.
One of the supposed advantages of centrifugal pumps when compared to positive displacement pumps is their ability to operate across a wide flow range. Because a centrifugal pump operates at the...
The pumping operation experienced an 80-percent reduction in energy use.
Pressure gauges are inexpensive components that can predict the causes of poor reliability in centrifugal pumps and prevent costly repairs and downtime.
Many options are available to meet industry and application requirements.
Appropriate equipment selection and best-practice maintenance procedures can make a difference in reliability, service life and production.
This article is part of our ongoing series on The History of Pumps. During the past few years, I have written articles about scientists who have contributed to our understanding of hydraulics....
Correctly selecting and installing the ideal component provides significant health, environmental and economic benefits.
A slurry pump hydraulic lab performs tests which can lead to improvements in pump design for reduced impact wear effects.