Chemical Processing - May 2008 - (Page 33) with I t’s increasingly popular to team a centrifugal pump with a variable speed drive (VSD) with a control valve on the discharge. However, many engineers don’t understand a VSD’s impact on ow and how that affects control. rather than couple a constant speed pump www.chemicalprocessing.com May 2008 • 33 http://www.chemicalprocessing.com
Table of Contents Feed for the Digital Edition of Chemical Processing - May 2008 From the Editor ChemicalProcessing.com Field Notes In Process Energy Saver Compliance Advisor WirelessHART signals a change at plants Avoid costly fabrication mistakes Watch out with variable speed pumping Hot cutover boosts control system migration Plant InSites Process Puzzler Equipment & Services Product Spotlight/Classifieds Ad Index End Point Chemical Processing - May 2008 Chemical Processing - May 2008 - (Page Cover1) Chemical Processing - May 2008 - (Page Cover2) Chemical Processing - May 2008 - (Page 3) Chemical Processing - May 2008 - (Page 4) Chemical Processing - May 2008 - (Page 5) Chemical Processing - May 2008 - (Page 6) Chemical Processing - May 2008 - (Page 7) Chemical Processing - May 2008 - (Page 8) Chemical Processing - May 2008 - From the Editor (Page 9) Chemical Processing - May 2008 - From the Editor (Page 10) Chemical Processing - May 2008 - ChemicalProcessing.com (Page 11) Chemical Processing - May 2008 - ChemicalProcessing.com (Page 12) Chemical Processing - May 2008 - Field Notes (Page 13) Chemical Processing - May 2008 - In Process (Page 14) Chemical Processing - May 2008 - In Process (Page 15) Chemical Processing - May 2008 - Energy Saver (Page 16) Chemical Processing - May 2008 - Compliance Advisor (Page 17) Chemical Processing - May 2008 - WirelessHART signals a change at plants (Page 18) Chemical Processing - May 2008 - WirelessHART signals a change at plants (Page 19) Chemical Processing - May 2008 - WirelessHART signals a change at plants (Page 20) Chemical Processing - May 2008 - WirelessHART signals a change at plants (Page 21) Chemical Processing - May 2008 - WirelessHART signals a change at plants (Page 22) Chemical Processing - May 2008 - WirelessHART signals a change at plants (Page 23) Chemical Processing - May 2008 - WirelessHART signals a change at plants (Page 24) Chemical Processing - May 2008 - WirelessHART signals a change at plants (Page 25) Chemical Processing - May 2008 - Avoid costly fabrication mistakes (Page 26) Chemical Processing - May 2008 - Avoid costly fabrication mistakes (Page 27) Chemical Processing - May 2008 - Avoid costly fabrication mistakes (Page 28) Chemical Processing - May 2008 - Avoid costly fabrication mistakes (Page 29) Chemical Processing - May 2008 - Avoid costly fabrication mistakes (Page 30) Chemical Processing - May 2008 - Avoid costly fabrication mistakes (Page 31) Chemical Processing - May 2008 - Avoid costly fabrication mistakes (Page 32) Chemical Processing - May 2008 - Watch out with variable speed pumping (Page 33) Chemical Processing - May 2008 - Watch out with variable speed pumping (Page 34) Chemical Processing - May 2008 - Watch out with variable speed pumping (Page 35) Chemical Processing - May 2008 - Watch out with variable speed pumping (Page 36) Chemical Processing - May 2008 - Watch out with variable speed pumping (Page 37) Chemical Processing - May 2008 - Watch out with variable speed pumping (Page 38) Chemical Processing - May 2008 - Hot cutover boosts control system migration (Page 39) Chemical Processing - May 2008 - Hot cutover boosts control system migration (Page 40) Chemical Processing - May 2008 - Hot cutover boosts control system migration (Page 41) Chemical Processing - May 2008 - Hot cutover boosts control system migration (Page 42) Chemical Processing - May 2008 - Process Puzzler (Page 43) Chemical Processing - May 2008 - Plant InSites (Page 44) Chemical Processing - May 2008 - Equipment & Services (Page 45) Chemical Processing - May 2008 - Product Spotlight/Classifieds (Page 46) Chemical Processing - May 2008 - Product Spotlight/Classifieds (Page 47) Chemical Processing - May 2008 - Product Spotlight/Classifieds (Page 48) Chemical Processing - May 2008 - Ad Index (Page 49) Chemical Processing - May 2008 - End Point (Page 50) Chemical Processing - May 2008 - End Point (Page Cover3) Chemical Processing - May 2008 - End Point (Page Cover4)
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