To state that 2009 was a turbulent year for the pump industry is a substantial understatement. The economy and its impact on business became a daily discussion while the industry struggled throughout...
Calculating Radial Thrust
The radial forces that form about the periphery of a single volute pump's impeller are proportional to total pump head, impeller diameter and vane width. They are seldom balanced, but they reach their...
Electric Drives in the European Oil and Gas Industries
Electric drives are used in various applications in the oil and gas industry for varying motor speeds driving critical components, including pumps, fans and compressors. Both AC and DC drives are...
Ensuring Proper Pressure Measurements
Wet Environments  Water chemical compatibility and electrical interference are two major challenges for control systems. Two major sources of fresh water can limit the performance of the control...
Expanding Business with Video Pipeline Inspection
Two decades ago, EST Associates, Inc. started operations in Needham, Mass., to provide the New England area with environmental sampling and related monitoring services.Driven by the demands of a...
How Do I Prevent Gasket Blow Out?
The term blow out refers to the catastrophic failure of a gasketed joint. It occurs when load has been reduced to where the hydrostatic end force approaches that of the bolt load. At that point gasket...
Hydraulic Institute Pump FAQs January 2010
Q. I understand the significance for properly configured suction piping, but what are the piping requirements on the discharge side of a rotodynamic (centrifugal) pump?A. The maximum velocity at any...
Instrumentation, Control and Computer System Upgrade
The Detroit Water and Sewerage Department (DWSD), a municipally owned utility, provides roughly four million residents in southeastern Michigan with an average of 710 million gallons of water per day....
The Challenge"Inaction is the riskiest response to the uncertainties of an economic crisis. But rash or scattershot action can be nearly as damaging."So begins "Seize Advantage in a Downturn,"...
Pumps and Systems in Transcontinental Energy Transfer
Massive amounts of energy are used to transfer oil and refined products over long distances. In the United States, several long distance pipelines move gasoline from the refineries in the Southwest to...
Removing Water and Particulate Contaminants from Oil
Lubricated machines require clean, dry oil to work properly. Recent studies have determined that as much as 80 percent of all failures and wear problems that hydraulic and lubricated equipment...
Actual NPSH Test - Reciprocating Pump and What is a Safe NPSH Margin for a Reciprocating Pump?
Actual NPSH Test-Reciprocating PumpPower pump NPSH tests are performed by holding pump speed and discharge pressure constant and varying the NPSH available in the system. Capacity remains constant for...