{"id":2060,"date":"2019-07-05T03:41:00","date_gmt":"2019-07-04T17:41:00","guid":{"rendered":"https:\/\/nuflow.net\/why-cipp-relining-improves-pipe-flow-rates\/"},"modified":"2019-07-05T03:41:00","modified_gmt":"2019-07-04T17:41:00","slug":"why-cipp-relining-improves-pipe-flow-rates","status":"publish","type":"post","link":"https:\/\/nuflow.net\/why-cipp-relining-improves-pipe-flow-rates\/","title":{"rendered":"Why CIPP Relining Improves Pipe Flow Rates"},"content":{"rendered":"<p>When deciding on a pipe repair or rehabilitation strategy for broken, leaking or damaged pipes, one question often asked is how a pipe&#8217;s flow rate (FR) will be affected by the repair.<\/p>\n<h2>CURED-IN-PLACE PIPE (CIPP) RELINING<\/h2>\n<p>When pipes are repaired using CIPP relining a specially-designed liner impregnated with a two-part epoxy resin is inserted into the pipe and cured to form a brand new toughened pipe from within.<\/p>\n<h2>DETERMINING A PIPE&#8217;S HYDRAULIC (FLOW) CAPACITY<\/h2>\n<p>General industry consensus is that CIPP relining usually maintains or improves the repaired pipe&#8217;s flow rate and efficiency despite the fact that the new liner reduces the internal diameter of the pipe. This is because the new, smooth internal surface of the pipe creates less resistance against the flow.<\/p>\n<p>Without getting too technical, the FR of a pipe basically depends upon:<\/p>\n<ul>\n<li>its diameter (internal width)<\/li>\n<li>its condition (blockages, sludge build-up, scale, tree roots, breaks, corrosion or pitting)<\/li>\n<li>the gradient (whether it travels uphill, downhill or horizontally)<\/li>\n<li>the inertia (force) propelling the contents along the pipe.<\/li>\n<\/ul>\n<p>These things are taken into account and an engineering formula (such as the<a href=\"https:\/\/www.lmnoeng.com\/hazenwilliams.php\" target=\"_blank\" rel=\"noopener noreferrer\">Hazen Williams equation<\/a>) can be used to determine the flow (hydraulic) capacity of that pipe.<\/p>\n<p>The impact which any pipe repair will have on flow rate, therefore, will depend on:<\/p>\n<ul>\n<li>the state of the pipe prior to the repair<\/li>\n<li>how the repair altered the diameter, condition, gradient and inertia of the pipe.<\/li>\n<li>How CIPP relining impacts flow rate.<\/li>\n<\/ul>\n<p>Prior to relining, pipes should be thoroughly cleaned out to remove any debris and create a clean surface for the reline to adhere to. Once complete the reline should sit snug inside the old, damaged pipe, completely and seamlessly covering the damage and functioning as a brand new pipe would. The reline will change the flow rate of the pipe in two ways:<\/p>\n<h2>REDUCING THE PIPE DIAMETER<\/h2>\n<p>Relining can reduce a pipe&#8217;s internal diameter because of the space taken up by the new liner. This reduction in pipe diameter is dependent upon the thickness of the liner used.<\/p>\n<p>Old pipes, however, often have sludge, pitting or deposits on their walls already reducing their diameter by at least the width of a liner, and which the reline process will remove.<\/p>\n<p>Given that many pipes also have structural expectations (i.e. if they are under a road or building they need to be able to retain their integrity despite the weight above), you need to ensure the liner is strong enough to maintain that level of structural integrity.<\/p>\n<p>Making sure scientific, engineering and technical experts have taken both the structural and hydraulic (flow) requirements of your project into account in the design and manufacture of your relining products, therefore, is an extremely important aspect of maintaining the best possible flow rate and structural integrity of your pipes.<\/p>\n<h2>IMPROVING THE CONDITION OF THE PIPE<\/h2>\n<p>The composite resin finish used in CIPP relining is very sleek and smooth; significantly improving a pipe&#8217;s ability to convey fluids through it quickly and easily.<\/p>\n<p>Joints, breaks or sudden changes in pipe diameter which may have been present in the old pipe system are seamlessly incorporated into one smooth line after relining, leaving less resistance or interruption to flow.<\/p>\n<p>This, along with the cleaning out and removal of obstructions, deposits, pitting or other impediments means most relined pipes flow significantly more freely than before the repair.<\/p>\n<h2>SUMMARY AND CONCLUSIONS<\/h2>\n<p>Repairing deteriorated, broken and leaking underground pipes by relining them:<\/p>\n<ul>\n<li>can preserve\/enhance water quality<\/li>\n<li>prevents further structural failure<\/li>\n<li>prevents water loss<\/li>\n<li>improves overall hydraulic capacity.<\/li>\n<\/ul>\n<p>Relining is usually better than excavating and digging up pipes because it&#8217;s:<\/p>\n<ul>\n<li>better for the surrounding environment<\/li>\n<li>more cost-effective<\/li>\n<li>less disruptive to businesses, homes, transportation routes and local fauna<br \/>\nfaster<\/li>\n<li>preserves historical elements of a community.<\/li>\n<\/ul>\n<p>Relining old pipes usually results in an overall flow rate improvement because:<\/p>\n<ul>\n<li>debris and blockages are cleared out<\/li>\n<li>the reline is completely smooth and seamless<\/li>\n<li>there are no sharp joins or transitions in pipe diameter to impede flow<\/li>\n<li>friction is reduced<\/li>\n<li>they&#8217;re more resistant to build-ups of sludge<\/li>\n<li>they&#8217;re more resistant to tree-root invasion.<\/li>\n<\/ul>\n<p>You can try it yourself! Drink through a paper straw and after a while the inside will become coated and rough and you will have to use more energy to suck the drink into your mouth. Now use a smooth plastic or metal straw and see the difference.<\/p>\n<p>Relining your pipes is like using a sleek new straw, and in most cases the improvement in flow rate will be noticeable.<\/p>\n<p><span id=\"hs-cta-wrapper-e011a7e7-77d4-4323-9941-21f5401a409f\" class=\"hs-cta-wrapper\"><span id=\"hs-cta-e011a7e7-77d4-4323-9941-21f5401a409f\" class=\"hs-cta-node hs-cta-e011a7e7-77d4-4323-9941-21f5401a409f\" data-hs-drop=\"true\"><a id=\"cta_button_4497037_5e2ae9e5-de09-440f-8412-a4bc781ff2fb\" class=\"cta_button\" href=\"https:\/\/blog.nuflow.net\/cs\/c\/?cta_guid=5e2ae9e5-de09-440f-8412-a4bc781ff2fb&amp;placement_guid=e011a7e7-77d4-4323-9941-21f5401a409f&amp;portal_id=4497037&amp;canon=https%3A%2F%2Fblog.nuflow.net%2Farticles%2Fwhy-cipp-relining-improves-pipe-flow-rates&amp;redirect_url=APefjpFt937KmpAx2zS0L2tNWOgVwOpKplxlVqqJo6d0Ryv2VlWbA6OqW0R5MQEMzZ7DD7NOABfUOeC1VgLIU-vqO2M7qxk2GA2H3afggoU_tGEwzN060cre_qhYsq2J1yz_WH8o5ZbM3c1UyPAbA0u5E6r9sHuznmJ5vQ2aWXhm65TQTuRGrnj5yo8Fkb_L1PoAsNXjdr0aAaKKOO6qWj9u_g_WNZjXao3Tgd-hDaRV0g9dhZxflGCgb7oI4cNaFboLnhy8SDxIx68L1lR-zdBG_Ziu2mOc_xVdwP-CCi544BLBK1JPy93qI4AkRzwCr2Se1lHBuDZl&amp;click=a4994f48-a11b-44df-ba72-fc59d30101a7&amp;hsutk=49c281fe3b88fcdef6a771600b101044&amp;utm_referrer=https%3A%2F%2Fblog.nuflow.net%2Farticles&amp;pageId=10478968483&amp;__hstc=33653822.49c281fe3b88fcdef6a771600b101044.1542331607153.1562281848209.1562296355212.70&amp;__hssc=33653822.29.1562296355212&amp;__hsfp=256080016\" target=\"_blank\" rel=\"noopener noreferrer\"><img fetchpriority=\"high\" decoding=\"async\" id=\"hs-cta-img-e011a7e7-77d4-4323-9941-21f5401a409f\" class=\"hs-cta-img \" src=\"https:\/\/nuflow.net\/wp-content\/uploads\/2020\/10\/077a6494-5c95-443d-b321-3122394cc444.png\" alt=\"New call-to-action\" width=\"560\" height=\"315\" \/><\/a><\/span><\/span><\/p>\n<p>If you&#8217;d like more technical information on relining, call a Nuflow technician on1800 683 569 (Australia) or 0800 168356 (New Zealand) or<a href=\"https:\/\/nuflow.net\/contact\/\" rel=\" noopener\">visit our contact page to find your local Nuflow technician.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>When deciding on a pipe repair or rehabilitation strategy for broken, leaking or damaged pipes, one question often asked is how a pipe&#8217;s flow rate (FR) will be affected by the repair. CURED-IN-PLACE PIPE (CIPP) RELINING When pipes are repaired using CIPP relining a specially-designed liner impregnated with a two-part epoxy resin is inserted into [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":2062,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":""},"categories":[1],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Why CIPP Relining Improves Pipe Flow Rates | Nuflow<\/title>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why CIPP Relining Improves Pipe Flow Rates | Nuflow\" \/>\n<meta property=\"og:description\" content=\"When deciding on a pipe repair or rehabilitation strategy for broken, leaking or damaged pipes, one question often asked is how a pipe&#8217;s flow rate (FR) will be affected by the repair. 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