{"id":4454,"date":"2025-08-15T11:44:21","date_gmt":"2025-08-15T09:44:21","guid":{"rendered":"https:\/\/www.fluidz.nl\/?p=4454"},"modified":"2025-08-26T09:40:04","modified_gmt":"2025-08-26T07:40:04","slug":"optimal-cip-cleaning-1-hygienic-design","status":"publish","type":"post","link":"https:\/\/www.fluidz.nl\/en\/optimal-cip-cleaning-1-hygienic-design\/","title":{"rendered":"Optimal CIP Cleaning 1: Hygienic design"},"content":{"rendered":"<p>Today we start with the 10 basic ingredients of optimal CIP cleaning!<\/p>\n<p><strong>Ingredient 1: The hygienic design<\/strong><\/p>\n<p>An hygienic design of a process installation is designed in accordance with the <a href=\"https:\/\/www.ehedg.org\/\" target=\"_blank\" rel=\"noopener\">EHEDG<\/a> guidelines.<br \/>\nWhy is this important?<\/p>\n<p>A food production installation must be able to be cleaned properly.<br \/>\nVisibly and invisibly.<br \/>\nTherefore, it is important to apply the following design rules:<\/p>\n<ul>\n<li><strong>Pipe velocity during cleaning: 1.5 \u2013 2 m\/s (=turbulent flow)<\/strong><br \/>\nTip: Note that velocities during cleaning are higher than during production- Figure Pipe flow:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0&#8211; Figure Pipe velocity:<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4455 size-medium\" src=\"https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-Turbulent-and-laminar-flow-300x300.jpg\" alt=\"Turbulent flow instead of laminar flow in hygienic design CIP\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-Turbulent-and-laminar-flow-300x300.jpg 300w, https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-Turbulent-and-laminar-flow-1024x1024.jpg 1024w, https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-Turbulent-and-laminar-flow-150x150.jpg 150w, https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-Turbulent-and-laminar-flow-768x768.jpg 768w, https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-Turbulent-and-laminar-flow.jpg 1200w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4459 size-medium\" src=\"https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-flow-rate-pipe-velocity-300x300.jpg\" alt=\"How do you design flow rate in CIP?\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-flow-rate-pipe-velocity-300x300.jpg 300w, https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-flow-rate-pipe-velocity-1024x1024.jpg 1024w, https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-flow-rate-pipe-velocity-150x150.jpg 150w, https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-flow-rate-pipe-velocity-768x768.jpg 768w, https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-flow-rate-pipe-velocity.jpg 1200w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/li>\n<li><strong>Avoid pipe branches<br \/>\n<\/strong>Tip: Use flow-through branches (swept tees) instead of standard tees to improve cleaning. (&lt;1.5D)- Figure Pipe dimensions:<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4457 size-medium\" src=\"https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-pipe-branches-and-velocity-300x300.jpg\" alt=\"How do you design a cip without pipe branches and the right pipe velocity?\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-pipe-branches-and-velocity-300x300.jpg 300w, https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-pipe-branches-and-velocity-1024x1024.jpg 1024w, https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-pipe-branches-and-velocity-150x150.jpg 150w, https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-pipe-branches-and-velocity-768x768.jpg 768w, https:\/\/www.fluidz.nl\/wp-content\/uploads\/2025\/08\/Hygienic-design-CIP-pipe-branches-and-velocity.jpg 1200w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/li>\n<\/ul>\n<ul>\n<li><strong>Avoid dips in the pipework<\/strong>, as dips increase the risk of bacterial growth and corrosion<br \/>\nTip: Pay attention to pipe support<\/li>\n<\/ul>\n<ul>\n<li><strong>Avoid diameter changes<\/strong><br \/>\nTip: If a diameter change is unavoidable, use gradual, conical transitions instead of abrupt transitions.<br \/>\nUse eccentric transitions in the horizontal plane.<\/li>\n<\/ul>\n<ul>\n<li><strong>Avoid combining line and tank cleaning<\/strong>, as tank and line cleaning often have different flow, pressure, and cleaning time requirements<br \/>\nTip: Design separate circuits for tanks and pipes<\/li>\n<\/ul>\n<ul>\n<li><strong>Design the pipework to be fully drainable<\/strong> by means of a slope and, if necessary, drain points<br \/>\nTip: Design pipes with a slope to drain points (0.5\u20131%)<\/li>\n<\/ul>\n<ul>\n<li><strong>Ensure good full flow and drainability of pumps and heat exchangers<br \/>\n<\/strong>Tip: Choose pumps and heat exchangers with hygienic design certifications (EHEDG, 3-A)<\/li>\n<\/ul>\n<ul>\n<li><strong>Know the (cleaning) specifications of the equipment (cleaning flow or pressure) and adjust the piping accordingly<\/strong><br \/>\nTip: Record these values in the validation protocol<\/li>\n<\/ul>\n<p>This information, along with additional explanations, will soon be available on the FAQ page of our website.<\/p>\n<p>Next week, we&#8217;ll explain ingredient 2: <strong>Material selection<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Today we start with the 10 basic ingredients of optimal CIP cleaning! Ingredient 1: The hygienic design An hygienic design of a process installation is designed in accordance with the EHEDG guidelines. Why is this important? A food production installation must be able to be cleaned properly. Visibly and invisibly. Therefore, it is important to [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":4455,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[724,663,825,666],"class_list":["post-4454","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-process-optimization-food-engineering-cip-fluid-systems-fluidz-process-industry-food-industry-pharmaceutical-industry","tag-foodsafety-en","tag-hygienic-design","tag-voedingsmiddelenindustrie-en"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.fluidz.nl\/en\/wp-json\/wp\/v2\/posts\/4454","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fluidz.nl\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fluidz.nl\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fluidz.nl\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fluidz.nl\/en\/wp-json\/wp\/v2\/comments?post=4454"}],"version-history":[{"count":8,"href":"https:\/\/www.fluidz.nl\/en\/wp-json\/wp\/v2\/posts\/4454\/revisions"}],"predecessor-version":[{"id":4505,"href":"https:\/\/www.fluidz.nl\/en\/wp-json\/wp\/v2\/posts\/4454\/revisions\/4505"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fluidz.nl\/en\/wp-json\/wp\/v2\/media\/4455"}],"wp:attachment":[{"href":"https:\/\/www.fluidz.nl\/en\/wp-json\/wp\/v2\/media?parent=4454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fluidz.nl\/en\/wp-json\/wp\/v2\/categories?post=4454"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fluidz.nl\/en\/wp-json\/wp\/v2\/tags?post=4454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}