Theory, Applications and Sizing of Air Valves
Editor's Note: Due to the high number of responses from our readers for more information regarding valve applications in "Surge Control in Pumping Stations" (Pumps & Systems, March 2007), this...
Pumps & Systems, July and August 2007  A review of traditional metering pump designs, along with a look at some of the new technologies that are being introduced. The metering pump is a...
Pumps & Systems, August 2007Conclusion of our look at a new tool that predicts how pumps and systems interact.Last month, I opened this discussion by explaining how the affinity laws are used to...
Pumps & Systems, August 2007With the wide use of variable frequency drives in the pump industry and increasing unit size, it is becoming more difficult to design mechanical systems free from...
Pumps & Systems, August 2007Even when a redundant pumping system is in place, it can be advisable to monitor the condition of the operating units in critical applications where maintaining...
Pumps & Systems, August 2007 How many gallons per minute are REALLY flowing out of that pump? Perhaps the OEM pump manufacturer tested this pump at the factory - or perhaps not. You now have a...
When we start the pump selection process for a particular application, one of our major concerns is efficiency. If several different models of similar quality meet our conditions, we will usually...
Pumps & Systems, August 2007Q. Is there a way of predicting the maximum operating speed for a reciprocating plunger pump when pumping a viscous liquid?A. Yes, but let's begin by setting the basic...