My last column (Pumps & Systems, April 2014) explained why resistance in implementing pump system improvement programs often occurs. Because pump systems touch many disciplines and departments within...
A redesigned air-operated double diaphragm pump allows end users to reduce their energy costs.
Many positive displacement pumps deliver the same flow rate regardless of the static head.
Material of construction, environmental conditions and IP ratings should be considered to maintain operating efficiency.
With fewer technical requirements, they provide lower-cost options for underserved industries.
Vibration and maintenance were reduced with the installation of carefully selected equipment.
Price, operating costs and reliability are key factors in any TCO calculation.
Q. What is NPSH3, and how does it relate to the NPSHR for a rotodynamic pump? A. The Hydraulic Institute defines the required net positive suction head (NPSHR) of a pump as the net positive suction...
Photos courtesy Xylem Watermark This article is part of a special Pumps & Systems series, "The Gift of Clean Water." For more articles, images and statistics from this series, please visit our...
The addition of a cardan joint helps resolve wear and failure and delivers improved angularity and smooth transmission of radial and axial loads.
Because these pumps require regular attention, end users should carefully consider the design options.
Fully integrated systems are critical for utilities when upgrading equipment and instrumentation.
Images courtesy Grundfos. This article is part of a special Pumps & Systems series, "The Gift of Clean Water." For more articles, images and statistics from this series, please visit our "Gift of...
This article is part of a special Pumps & Systems series, "The Gift of Clean Water." For more articles, images and statistics from this series, please visit our "Gift of Clean Water" page. Photos...
Manufacturers can provide solutions for aging water and wastewater systems.
The Jordan, Knauff & Company (JKC) Valve Stock Index was up 15.0 percent during the last 12 months, while the broader S&P 500 Index was up 19.8 percent. The JKC Pump Stock Index was up 33.8 percent...