{"id":27,"date":"2015-10-07T17:00:00","date_gmt":"2015-10-07T17:00:00","guid":{"rendered":"http:\/\/machineryequipmentonline.com\/hydraulics-and-pneumatics\/uncategorized\/selection-process-new-systemsflow-charts\/"},"modified":"2015-10-07T17:00:00","modified_gmt":"2015-10-07T17:00:00","slug":"selection-process-new-systemsflow-charts","status":"publish","type":"post","link":"http:\/\/machineryequipmentonline.com\/hydraulics-and-pneumatics\/selection-process-new-systemsflow-charts\/","title":{"rendered":"Selection process &#8211; new systems:Flow charts"},"content":{"rendered":"<div class=\"fysln6a0dbc79109bc\" ><script type=\"text\/javascript\">\n\tatOptions = {\n\t\t'key' : '61e5902552e2353963d8d2f1bd1f4a8f',\n\t\t'format' : 'iframe',\n\t\t'height' : 250,\n\t\t'width' : 300,\n\t\t'params' : {}\n\t};\n<\/script>\n<script type=\"text\/javascript\" src=\"\/\/www.highperformanceformat.com\/61e5902552e2353963d8d2f1bd1f4a8f\/invoke.js\"><\/script><\/div><style type=\"text\/css\">\r\n@media screen and (min-width: 1201px) {\r\n.fysln6a0dbc79109bc {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 993px) and (max-width: 1200px) {\r\n.fysln6a0dbc79109bc {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 769px) and (max-width: 992px) {\r\n.fysln6a0dbc79109bc {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 768px) and (max-width: 768px) {\r\n.fysln6a0dbc79109bc {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (max-width: 767px) {\r\n.fysln6a0dbc79109bc {\r\ndisplay: block;\r\n}\r\n}\r\n<\/style>\r\n<p align=\"justify\"><b>Flow charts<\/b> <\/p>\n<p align=\"justify\">Flow charts to assess the suitability of a VSD for a pump system are shown in Figures 9.1 for rotodynamic pumps and 9.2 for positive displacement <\/p>\n<p align=\"justify\"><a href=\"http:\/\/lh3.googleusercontent.com\/-1UFDZLWq1Qs\/VhVPjBTy8II\/AAAAAAACGyU\/yLYuJ4O0hVw\/s1600-h\/VARIABLE%252520SPEED%252520PUMPING-0770%25255B2%25255D.jpg\"><img decoding=\"async\" loading=\"lazy\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; margin: 0px auto; padding-left: 0px; padding-right: 0px; display: block; float: none; border-top: 0px; border-right: 0px; padding-top: 0px\" title=\"VARIABLE SPEED PUMPING-0770\" border=\"0\" alt=\"VARIABLE SPEED PUMPING-0770\" src=\"http:\/\/lh3.googleusercontent.com\/-kYtV8-g3wJ0\/VhVPl7CvjGI\/AAAAAAACGyc\/at2rn4doatg\/VARIABLE%252520SPEED%252520PUMPING-0770_thumb.jpg?imgmax=800\" width=\"300\" height=\"484\" \/><\/a> <\/p>\n<p align=\"justify\"><a href=\"http:\/\/lh3.googleusercontent.com\/-u3slmBEYG5w\/VhVPorK9ckI\/AAAAAAACGyo\/i5JX4hTmMrY\/s1600-h\/VARIABLE%252520SPEED%252520PUMPING-0771%25255B2%25255D.jpg\"><img decoding=\"async\" loading=\"lazy\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; margin: 0px auto; padding-left: 0px; padding-right: 0px; display: block; float: none; border-top: 0px; border-right: 0px; padding-top: 0px\" title=\"VARIABLE SPEED PUMPING-0771\" border=\"0\" alt=\"VARIABLE SPEED PUMPING-0771\" src=\"http:\/\/lh3.googleusercontent.com\/-7fYL1PE3yWw\/VhVPrIHqRLI\/AAAAAAACGyw\/CsasQ_CDYBU\/VARIABLE%252520SPEED%252520PUMPING-0771_thumb.jpg?imgmax=800\" width=\"406\" height=\"484\" \/><\/a> <\/p><div class=\"jlueb6a0dbc7910bc7\" ><script type=\"text\/javascript\">\n\tatOptions = {\n\t\t'key' : '0c1eb4c533eaedb7b996f49a5a4983a9',\n\t\t'format' : 'iframe',\n\t\t'height' : 300,\n\t\t'width' : 160,\n\t\t'params' : {}\n\t};\n<\/script>\n<script type=\"text\/javascript\" src=\"\/\/www.highperformanceformat.com\/0c1eb4c533eaedb7b996f49a5a4983a9\/invoke.js\"><\/script><\/div><style type=\"text\/css\">\r\n@media screen and (min-width: 1201px) {\r\n.jlueb6a0dbc7910bc7 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 993px) and (max-width: 1200px) {\r\n.jlueb6a0dbc7910bc7 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 769px) and (max-width: 992px) {\r\n.jlueb6a0dbc7910bc7 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 768px) and (max-width: 768px) {\r\n.jlueb6a0dbc7910bc7 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (max-width: 767px) {\r\n.jlueb6a0dbc7910bc7 {\r\ndisplay: block;\r\n}\r\n}\r\n<\/style>\r\n<div class=\"scfia6a0dbc7910ab8\" ><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-0778475562755157\"\n     crossorigin=\"anonymous\"><\/script>\n<!-- 300x600 hydraulics-and-pneumatics -->\n<ins class=\"adsbygoogle\"\n     style=\"display:inline-block;width:300px;height:600px\"\n     data-ad-client=\"ca-pub-0778475562755157\"\n     data-ad-slot=\"3735577695\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/div><style type=\"text\/css\">\r\n@media screen and (min-width: 1201px) {\r\n.scfia6a0dbc7910ab8 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 993px) and (max-width: 1200px) {\r\n.scfia6a0dbc7910ab8 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 769px) and (max-width: 992px) {\r\n.scfia6a0dbc7910ab8 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 768px) and (max-width: 768px) {\r\n.scfia6a0dbc7910ab8 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (max-width: 767px) {\r\n.scfia6a0dbc7910ab8 {\r\ndisplay: block;\r\n}\r\n}\r\n<\/style>\r\n\n<p align=\"justify\">pumps. These are based on using a variable frequency drive, which will be more efficient than any speed control device, which uses slip to vary the speed. Having established that using a VFD is appropriate, Figure 9.3 is a flow chart for selecting the correct drive and making the life cycle cost calculation. Chapter 12 will help in making the financial justification. <\/p>\n<p align=\"justify\">Appendix A2.4 contains information on the factors to be considered in sizing a drive.<\/p>\n<p align=\"justify\"><a href=\"http:\/\/lh3.googleusercontent.com\/-DGOVh-S_cI0\/VhVPtuu9cHI\/AAAAAAACGy4\/BKhXsPlXMyw\/s1600-h\/VARIABLE%252520SPEED%252520PUMPING-0772%25255B2%25255D.jpg\"><img decoding=\"async\" loading=\"lazy\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; margin: 0px auto; padding-left: 0px; padding-right: 0px; display: block; float: none; border-top: 0px; border-right: 0px; padding-top: 0px\" title=\"VARIABLE SPEED PUMPING-0772\" border=\"0\" alt=\"VARIABLE SPEED PUMPING-0772\" src=\"http:\/\/lh3.googleusercontent.com\/-a6Ep1YVI-SY\/VhVPwei-DGI\/AAAAAAACGzA\/FmFwqDSCe8I\/VARIABLE%252520SPEED%252520PUMPING-0772_thumb.jpg?imgmax=800\" width=\"370\" height=\"484\" \/><\/a><\/p>\n<p align=\"justify\">\n<p><b><\/b> <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Flow charts Flow charts to assess the suitability of a VSD for a pump system are shown in Figures 9.1 for rotodynamic pumps and 9.2 for positive displacement pumps. These are based on using a variable frequency drive, which will be more efficient than any speed control device, which uses slip to vary the speed. 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