{"id":2577,"date":"2024-08-29T08:00:34","date_gmt":"2024-08-29T12:00:34","guid":{"rendered":"https:\/\/backflow-shop.com\/?p=2577"},"modified":"2026-10-27T14:17:57","modified_gmt":"2026-10-27T18:17:57","slug":"4-reasons-why-backflow-preventers-break-dar-failure","status":"publish","type":"post","link":"https:\/\/backflow-shop.com\/en\/4-reasons-why-backflow-preventers-break-dar-failure\/","title":{"rendered":"4 Reasons Why Backflow Prevention Devices Break"},"content":{"rendered":"<p><strong>BPD failure might occur anytime. <\/strong><span class=\"Y2IQFc\" lang=\"en\">Indeed, backflow prevention devices (BPD) play a crucial role in preventing the contamination of water networks by undesirable substances. Although they are essential for public health and environmental protection, these devices are often subject to breakage. A breakage is reflected by a failure of the annual certification or by a failure of the waterproofing. That said, these failures therefore expose our communities to significant health risks. But why are these dysfunctions so widespread? This article takes a detailed look at the four main causes of BPD failure in order to understand and prevent these problems.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3>The main cause of BPD failure<\/h3>\n<p>Extreme temperatures are one of the main causes of BPD failure. The mechanical components of BPDs, often made from materials such as plastic or rubber, can expand or contract depending on temperature changes. These expansions and contractions can lead to cracks or warping, compromising the seal of the check valves within the devices. Additionally, prolonged exposure to extreme temperatures, whether hot or cold, can accelerate the aging of materials. This prolonged exposure will have the effect of reducing their effectiveness and durability. That said, it is crucial to choose BPDs adapted to specific climatic conditions and, if possible, to protect them against excessive temperature fluctuations.<sup>3<\/sup><\/p>\n<p>&nbsp;<\/p>\n<h3>Minerals in the city\u2019s water<\/h3>\n<p>Mineral that are dissolved in city water can also be a significant source of BPD dysfunction. When water is stagnant for a long period of time, substances such as calcium and magnesium can build up on the internal components of the devices and form limescale deposits. These deposits can obstruct the closing and opening mechanisms of the valves, thus preventing the BPD from functioning correctly. Over time, this mineral buildup can damage components, requiring frequent maintenance and sometimes even replacement of devices.<sup>1<\/sup><\/p>\n<p>&nbsp;<\/p>\n<h3>Debris in the water<\/h3>\n<p>The <span class=\"Y2IQFc\" lang=\"en\">presence of debris such as rocks, pieces of rust, grease from welds and other solid particles in the water is another common cause of ADR failure. In fact, this debris often comes from work carried out on the water network. Additionally, a lack of care when installing ADRs can allow unwanted particles to enter the system. Consequently, by lodging in the moving components of the devices, this debris can hinder the proper functioning of the BPDs; the valves can be stuck in the open or closed position, compromising the safety of the systems. To reduce the risk of malfunctions linked to debris, the installation of sieves or filters upstream of the BPDs proves to be an effective solution. <\/span><\/p>\n<p><span class=\"Y2IQFc\" lang=\"en\">Additionally, these filtration tools capture particles before they reach the BPD. However, it is essential to empty these tools regularly to avoid excessive accumulation of debris, which could in turn impair the proper functioning of the systems.<\/span><sup>2<\/sup><\/p>\n<p>&nbsp;<\/p>\n<h3>Pressure fluctuations<\/h3>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignright wp-image-2582\" src=\"https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Darspec-piece-brisee-C-236x300.jpg\" alt=\"DAr\" width=\"212\" height=\"269\" srcset=\"https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Darspec-piece-brisee-C-236x300.jpg 236w, https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Darspec-piece-brisee-C-804x1024.jpg 804w, https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Darspec-piece-brisee-C-768x978.jpg 768w, https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Darspec-piece-brisee-C-1206x1536.jpg 1206w, https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Darspec-piece-brisee-C-1608x2048.jpg 1608w, https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Darspec-piece-brisee-C-600x764.jpg 600w, https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Darspec-piece-brisee-C.jpg 1920w\" sizes=\"(max-width: 212px) 100vw, 212px\" \/><\/p>\n<p>Pressure <span class=\"Y2IQFc\" lang=\"en\">fluctuations in the water supply network can lead to premature failure of BPD. Indeed, rapid and frequent variations in pressure, caused by changes in flow rate, place heavy demands on mechanical components, such as seals and valves. This constant wear can cause leaks or ruptures, thus compromising the sealing and proper functioning of the devices. This problem is particularly common in large industrial processes where water flow rates vary significantly.<\/span><sup>3<\/sup><\/p>\n<p>&nbsp;<\/p>\n<h3>What to remember?<\/h3>\n<p>F<span class=\"Y2IQFc\" lang=\"en\">actors such as temperature extremes, dissolved minerals, debris in the water, and pressure fluctuations can cause frequent failures. So, to prevent these problems, choose suitable BPD and protect them against fluctuations.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #ccffff;\"><strong>Written by Marcu Badan, published August 29th, 2024, extracted from <span style=\"text-decoration: underline;\"><a style=\"color: #ccffff;\" href=\"https:\/\/www.darspec.com\/en\/\" target=\"_blank\" rel=\"noopener\">Darspec<\/a><\/span>.<\/strong><\/span><\/p>\n<p><span style=\"color: #ccffff;\">Another interesting article: <a style=\"color: #ccffff;\" href=\"https:\/\/backflow-shop.com\/en\/removable-thermal-insulation-a-practical-and-cost-effective-solution\/\">Removable thermal insulation; a practical and cost-effective solution<\/a><\/span><\/p>\n<h4>References:<\/h4>\n<ol>\n<li>Plumbing Rocket. (2020, 25 novembre).\u00a0Calcium Build-up in Your Drains and Pipes\u00a0? Here\u2019s How To Fix It | Rocket Plumbing. Best Plumber in Chicago &amp;\u00a0; Lombard, IL | Rocket Plumbing.\u00a0<a href=\"https:\/\/rocketplumbingnow.com\/blog\/calcium-build-up-in-your-drains-and-pipes-heres-how-to-fix-it\/\" target=\"_blank\" rel=\"noopener\">https:\/\/rocketplumbingnow.com\/blog\/calcium-build-up-in-your-drains-and-pipes-heres-how-to-fix-it\/<\/a><\/li>\n<li>Direct\u00a0Material. (2019, 18 avril).\u00a0Y-Strainers\u00a0: Keeping Things Clean. Wholesale Industrial Parts | Valves &amp;\u00a0; Gauges.\u00a0<a href=\"https:\/\/www.directmaterial.com\/y-strainers-keeping-things-clean\">https:\/\/www.directmaterial.com\/y-strainers-keeping-things-clean<\/a><\/li>\n<li>Trouble Shooters. (s. d.). Wondering why did your backflow device test failed ? Trouble Shooters Plumbing. <a href=\"https:\/\/torontoplumbers.com\/why-did-my-backflow-device-test-fail\/\">https:\/\/torontoplumbers.com\/why-did-my-backflow-device-test-fail\/<\/a><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>BPD failure might occur anytime. Indeed, backflow prevention devices (BPD) play a crucial role in preventing the contamination of water networks by undesirable substances. Although they are essential for public health and environmental protection, these devices are often subject to breakage. A breakage is reflected by a failure of the annual certification or by a [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":2579,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58],"tags":[],"class_list":["post-2577","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tips"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>4 Reasons Why Backflow Prevention Devices Break - Backflo Shop<\/title>\n<meta name=\"description\" content=\"DAr failure (backflow prevention devices) is often due to four main causes, and can lead to significant health risks.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.darspec.com\/en\/blog\/2024\/08\/29\/4-reasons-why-backflow-preventers-break\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"4 Reasons Why Backflow Prevention Devices Break - 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