{"id":19,"date":"2026-09-08T13:43:59","date_gmt":"2026-09-08T13:29:18","guid":{"rendered":"https:\/\/demo.gatilab.com\/uranium-fluentcart\/sizing-a-pump-for-a-retrofit\/"},"modified":"2026-09-12T13:43:59","modified_gmt":"2026-09-12T13:43:59","slug":"sizing-a-pump-for-a-retrofit","status":"publish","type":"post","link":"https:\/\/demo.gatilab.com\/uranium-fluentcart\/sizing-a-pump-for-a-retrofit\/","title":{"rendered":"How we size a centrifugal pump for a retrofit"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Most retrofit pumps are oversized. The old unit was chosen for a duty point that changed years ago, and the new one gets matched to the nameplate instead of the process.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Start with the real duty point<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Log flow and discharge pressure for a full production week. The duty point is where the pump spends most of its hours, not the peak it hits once a month.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Measure suction pressure, not just discharge.<\/li>\n\n\n\n<li>Check the NPSH margin at the highest liquid temperature.<\/li>\n\n\n\n<li>Note any throttled valves; they hide wasted head.<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">A pump that runs near its best efficiency point lasts longer, uses less power and is quieter.<\/p>\n<cite>Service team, Pittsburgh depot<\/cite><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">Then pick the frame<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Choose the smallest frame that holds the duty point inside the preferred operating range, and trim the impeller rather than throttling the discharge.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Most retrofit pumps are oversized. The old unit was chosen for a duty point that changed years ago, and the new one gets matched to the nameplate instead&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-19","post","type-post","status-publish","format-standard","hentry","category-field-notes"],"_links":{"self":[{"href":"https:\/\/demo.gatilab.com\/uranium-fluentcart\/wp-json\/wp\/v2\/posts\/19","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/demo.gatilab.com\/uranium-fluentcart\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/demo.gatilab.com\/uranium-fluentcart\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/demo.gatilab.com\/uranium-fluentcart\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/demo.gatilab.com\/uranium-fluentcart\/wp-json\/wp\/v2\/comments?post=19"}],"version-history":[{"count":1,"href":"https:\/\/demo.gatilab.com\/uranium-fluentcart\/wp-json\/wp\/v2\/posts\/19\/revisions"}],"predecessor-version":[{"id":59,"href":"https:\/\/demo.gatilab.com\/uranium-fluentcart\/wp-json\/wp\/v2\/posts\/19\/revisions\/59"}],"wp:attachment":[{"href":"https:\/\/demo.gatilab.com\/uranium-fluentcart\/wp-json\/wp\/v2\/media?parent=19"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/demo.gatilab.com\/uranium-fluentcart\/wp-json\/wp\/v2\/categories?post=19"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/demo.gatilab.com\/uranium-fluentcart\/wp-json\/wp\/v2\/tags?post=19"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}