Pump Readers Respond, October 2011
“Sealing Sense,” July 2011 Click here for full article.     In the [tool, under the Inputs – Outputs sheet] 2) Cost of Capital (PV discount rate):What does this mean? Is...
Ball Valve Replacement Increases Savings
Rubber-seated ball valve replacement saves energy, money and downtime.Located in northwestern Ohio, the City of Findlay is the epicenter of Hancock County. Built in 1931, the Findlay Water Treatment...
Bleach Use in Wastewater Treatment
Mechanically actuated metering pumps improve operational efficiencies and eliminate concerns associated with off-gassing in sodium hypochlorite applications.To most people, sodium hypochlorite is...
Gain Efficiency with Volute Design
Simplify the design and analysis of this complex component.
Q. What symptoms are typical indicators of an inefficient pumping system?A. Many pumping system components are not dynamic. That is, these components allow fluid or heat transfer but, aside from...
Liquid Gold
Pumps in the growing global desalination marketThe topic of water—its use, shortage, value—is currently pervasive. Developing countries face the brunt of this water scarcity as not even a...
This column presents a discussion between myself and pump users regarding some of their questions, concerns and preferences about materials of construction that they consider for their applications....
Mechanical Pressure Measurement
Pressure gauges are a versatile way to monitor pump operation.Prior to 1850, the only way to measure pressure was with a vertical tube (usually glass) with some liquid inside. The liquid was generally...
Motors, Drives Improve High-Rise Condo Efficiency
Significant energy and money savings are realized when using variable speed motors controlled with drives.The Villa Magna, a 92-unit luxury condominium in Highland Beach, Fla., sits between the...
Oil-less Vacuum Technology
Increased efficiency, higher air handling and fast, automatic priming are provided with new technology.The groundbreaking oil-less vacuum technology (OVT) priming system offers multiple improvements...
Water shortages, failing infrastructure, broke governments, a crumbling municipal bond market and the need for high subsidies. While the global pump community tools up to participate in the business...
Progressive Cavity Cake Pumps in Wastewater Treatment
Replacing conveyors with pumps improves efficiency and sanitation in an Ohio wastewater treatment plant.A Delaware, Ohio, wastewater treatment plant needed a solution to replace its conveyer system....
Proper Alignment of Large Motors & Pumps
 A large utility company confronts alignment of a 5,000-horsepower motor.Installation and setup of a pump and motor can be easy for small systems. Both can be lifted with relatively small...
Pumping Grit
 Recessed impeller pumps are a solution for grit transfer in wastewater and water treatment applications.Grit is highly abrasive. Selecting pump materials of the correct construction and hardness...
Smart Motor Management
Data-driven visibility helps protect industrial processes and motors.Industrial producers typically invest millions in their infrastructure. Despite such investments, many production facilities lack...
Flow and pressure downstream are important, but inlet pump conditions also require attention during design.Positive displacement pumps, specifically reciprocating and peristaltic types, create...
Structural Composite Parts
 Composites significantly reduce energy consumption, maintenance costs and repair costs.Today, tremendous effort is made to reduce energy consumption. The Department of Energy (DOE) and the...
The Case of Action/Reaction
 Energy efficiency may not always mean total efficiency.The Department of Energy (DOE) has adopted new energy conservation standards for electric motors. The DOE has determined these standards...
The New Wastewater
Modern trash causes big issues for wastewater collection systems.Daily challenges abound for collection system operators and administrators as they work to support the proper operation of their pipes,...
Turbine Bearing Failure
Oil quality assessment causes lubrication issues at a refinery.On Friday, January 7, 2011, a processing unit was shut down due to a sequence of events that led to the loss of main fractionation tower...
Valve Helps Meet Fire Flow Demands
Millcreek Township connects to neighboring township with a pressure-reducing valve with integral backup.The Millcreek Township Water Authority (MTWA) near Erie, Penn., was created in 1974 to provide...
VFDs Improve Motor & Pump Control
VFDs replace mechanical devices and PLCs for lead-lag pump control.When a pump is started and run across the line, it will provide maximum flow at optimal efficiency. However, a pump motor operated...
The Jordan, Knauff & Company (JKC) Valve Stock Index was up 7.9 percent over the last 12 months, below the broader S&P 500 Index which was up 12.8 percent. The JKC Pump Stock Index continued...
Wastewater Treatment Facility Upgrade Features CHP System
Pittsfield, Mass., wastewater treatment facility saves money and shrinks environmental footprint.Nestled within the Berkshire Hills in Western Massachusetts, Pittsfield is noted for its blend of New...
What are the challenges with sealing water applications?
 Water is the most abundant liquid on the Earth's surface and is vital to many aspects of our daily lives. For these reasons, a wide variety of fluid handling applications involve transporting...