Reliable Shock Pulse Evaluation of Anti-Friction Bearing Condition
Ensure proper bearing assessment and maintenance with this proven method.Of the methods used to assess the operating condition of rolling element bearings, one of the most successful and popular...
Wastewater Treatment Facility Embraces Peristaltic Technology
Peristaltic hose and tube pumps add cost savings, versatility and maintenance ease for Nashua treatment facility.Nashua, N.H., is one of many U.S. cities and municipalities selecting peristaltic pumps...
Intelligent Pump Cleaning Cuts Maintenance Time
The installation of an AC drive with an advanced software tool has dramatically cut call-outs for blockages at an Irish county council pumping station. Pump control software has been installed to...
Asset Management Systems
Data and life cycle management technology helps refineries maintain equipment and reduce the total cost of ownership.Typically, 90 percent of the total life cycle cost (LCC) of a flow management...
Benefits of Smart Pumps in Building HVAC Systems
The ever-growing need for energy efficiency demands intelligent pumping systems.Electrical energy demand is projected to double by 2030, putting the world in the midst of a global energy dilemma. At...
Pump Replacement Part Availability
Address this problem to avoid the possibility of future crises.The crumbling infrastructure of our roads and bridges is the hot topic in today’s political discourse. However, an even bigger problem...
Inspections and Repair Enhance Pump Performance
Improvement can result from repair opportunities.Often all that is needed to improve a pump’s dependability and performance is a high quality inspection and repair. Over time, a pump may...
Pumps & Systems, June 2008Vibration is one of the most damaging forces in the industrial environment. Vibration not only reduces the life of equipment, but can also adversely affect the quality of...
Editor's Note: This is the first in a six-part series on centrifugal pump efficiency. For other articles in this series, click here.In this multi-part series, we will investigate several aspects of...
Healthy Control Valves
A simple maintenance routine can help ensure trouble-free valve operation.Whether the control valve in your system is the first one that has required maintenance or if you are experienced with...
Optimizing Total Cost of Ownership
Initial purchase price is a small fraction of the TCO.How much does a pump cost? Ask a corporate executive or plant manager about the cost of a piece of equipment, and you're likely to hear the...
Operation and Maintenance of Vertical Motors
 Construction features are key to vertical motor application and maintenance.The definite-purpose application of vertical motors dictates a number of construction features that set them apart...
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...
Microprocessor-Based Pump/Motor Protection Relays
Today's lean maintenance staff needs pump and motor protective devices that diagnose and predict problems before they become acute.Pumps are indispensable in mining, petroleum recovery (wellhead...
Flash Steam Recovery Using Condensate Tank Vent Condensers
With today’s energy prices and the need to reduce emissions, a plant cannot allow its steam/condensate systems to vent flash steam to the atmosphere.Depending on the installation costs, plants will...
Vertical Pump Repair and Upgrade Considerations
Typical vertical pump types include turbine, mixed and axial flow. The Hydraulic Institute classifies these pumps as type VS (Vertically Suspended). Unlike horizontal pumps, these pumps typically have...
We were told that the 48-in diameter sewage pump impeller from one of New York City's main sewage pumps had been found "practically destroyed." When the impeller actually arrived at our location, both...
Smooth Equipment Operation
Balancing couplings may not be the ultimate solution for vibration issues.Oil and gas industry customers are increasingly asking original equipment manufacturers (OEMs) to balance their couplings to...
HI Pump FAQs February 2012
Q. We plan to purchase several slurry pumps and understand that this service is considered severe duty. What guidelines should be followed regarding pump selection based on good wear resistance?A....
In the demanding conditions of the oil and gas industry, plant managers are realizing that lubrication best practices can help improve equipment reliability, optimize maintenance and reduce energy...
Pumps & Systems, November 2008Seven considerations for selecting the proper heat transfer fluid.1. Service TemperatureConsider the service temperature of the fluid, since the thermal stability...
Pumps and Systems, August 2009One of the major contributors to unbalance in rotating machinery is eccentricity. When we disassemble parts, we must also reassemble them. Even if the reassembly requires...
Pumps & Systems, July 2007When measuring vibration, one of the most important factors in obtaining accurate information involves selecting the proper vibration transducer. Selecting the wrong...
In 1992, a pipeline was built in Texas and Oklahoma parallel to an existing line to increase capacity. The design flow rate was 3,600 gpm (818 m3/h). Four stage 8 X 10 X 13 pumps were purchased new...
Pumps and Systems, January 2007Example 1Vertically mounted pumps can resonate as a total structure in a "rocking" mode, as shown in Figures 1 and 2 below. This is one of the toughest unsolved...
Pumps and Systems, March 2009Pressure gauges are an important indicator of whether a system or component is operating correctly. Pressure gauges generally require little to no maintenance, other than...
Pumps and Systems, April 2009In today's growing industrialized market, the need for reciprocating pumps is increasing daily. As technology drives modernization, the demand placed on the pumping...
Q. What does the expression discharge recirculation signify in rotodynamic (centrifugal) pumps? When does it occur, and is it harmful to the pump?   A. Discharge recirculation is circulatory...
Pumps and pump systems are unique, engineered products that require specialized knowledge in all phases of repair, rebuilding and balancing. When pumps fail, costs add up quickly for repairs,...