Pumps & Systems, March 2008 It required only a couple notes of the haunting soundtrack to signal an imminent shark attack in the movie Jaws. As the theme began to swell, it became obvious that...
Pumps & Systems, February 2008 Challenges for the Pump Market A recent marketing survey found that 84.0 percent of satisfied customers would "jump ship" for a better deal if an opportunity...
 Pumps & Systems, March 2008Soils with high concentrations of clay and silt can wreak havoc on construction sites, drain pipes, sewers and pumps. Users working with soils might want to...
Pumps & Systems, March 2008Few would dispute that variable frequency drives (VFDs) save energy, but the exact amount depends on the system. Hydraulically speaking, the main difference between a...
Pumps & Systems, March 2008 Changing traditional industry ways of thinking can help usher in the plant of the future. In only a couple of years, the focus on energy efficiency has gone from...
Q. When installing a horizontal pump, is it better to grout the pump baseplate or let it float free?   Different sources provide opposing views on this subject.A. Whether to grout...
Pumps & Systems, March 2008Outdated water systems are pumping beyond their original specifications, resulting in inefficient operation, higher maintenance and operation costs and the potential for...
Parallel Pumping (Part One): Parallel and Not So Parallel
Suppose, for a moment, that you are lounging on a beach somewhere in the vicinity of the equator.  If you were to draw side by side two lines in the sand, both heading due north, they will appear...
Pumps & Systems, March 2008 Use of disposable components in product downstream processing and final fill operations is increasing as technology improves for performing these steps in a single-use...
Pumps & Systems, March 2008 Many items must be considered when designing pump station control systems with power requirements, level control method and control panel location often among the most...
As the name suggests, Winter Park, CO is a haven for winter weather fanatics. The city occupies 7.5-sq mi about an hour's drive northwest of Denver. Located in the heart of the Rocky Mountains, Winter...
Public works officials who manage the nation's wastewater treatment plants (WWTPs) would universally agree that a "weak" link in any plant's process chain can cause big-and often expensive-problems....
Shaft misalignment is one of the most common causes of premature mechanical seal failure. Higher leak rates typify these failures. Rapid failures can occur in high pressure and speed applications....
 Pumps & Systems, March 2008A grinder pump station stores, grinds and pumps wastewater under pressure to a treatment site or central sewer, depending on the location. Because the output is...
Pumps & Systems, March 2008It is common practice for the designer of a new centrifugal pump to model the new pump from an existing pump. Each dimension of the existing pump (except the shaft...
Pumps & Systems, March 2008    Market Overview  Rotary pumps belong to the positive displacement (PD) pump family, which moves fluid using the principles of rotation....