Latest Pumps Articles

Sewage pumps operate based on Daniel Bernoulli’s principles (Hydrodynamica, 1738), which define the effects of balanced energy on fluid systems.
The global metering pump market is expected to experience moderate growth during the next few years.
Submersible pumps, as the name suggests, are specifically designed to be submerged in the liquid that is pumped.
Q. What is a string test, and when should one be specified?
Hamilton, Ontario, is one of Canada’s major metropolitan cities.
In sewage grinder pumps, domestic wastewater from one or a few households flows by gravitation to a pumping station equipped with one or two grinder pumps, having a discharge pipe of nominal diame
Pump manufacturers know that the engineering phrase “fit and forget” never holds true for rotating equipment.
Several North American government agencies and organizations share the responsibility of protecting the public’s health and safety while serving the best interests of water treatment facilities.
Despite their simplicity, centrifugal pumps often experience repeat failures that even seasoned maintenance and reliability professionals have trouble preventing.
Most homes built before 1970 are connected to a sewer through a gravity sewer system.
The Jordan, Knauff & Company (JKC) Valve Stock Index was up 9 percent during the last 12 months, staying under the broader S&P 500 Index, which was up 13.1 percent.
The waterfalls in the National September 11 Memorial & Museum cascade forever. To eternity.
When facilities—whether paper mills, refineries, or chemical or waste treatment plants—decide to implement pump system improvements, the first question is always the same: Where to begin?
Rural wastewater utilities rarely, if ever, consider upgrading to an automated control system.
Power factor (PF) is an important component of an alternating current (AC) circuit, but understanding its actual effect can be difficult. Why is PF mysterious to many of us?
Several years ago, the Environmental Protection Agency (EPA) began an initiative to control excessive nitrogen and phosphorus pollution entering the Gulf of Mexico through watersheds.
Life-cycle cost calculations for wastewater installations can produce huge savings over time for wastewater companies.
A multistage BB5 diffuser machine in oil transfer service in the Middle East had been in operation for many years without problems.
An article in the June 2009 issue of Pumps & Systems detailed a new technology to treat the surface of silicon carbides. The treatment is not a coating and not homogenous with depth.
Q. What are some differences between specific speed and suction specific speed for a rotodynamic pump?


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