{"id":9865,"date":"2025-10-14T05:03:56","date_gmt":"2025-10-14T05:03:56","guid":{"rendered":"https:\/\/tradefoxapp.com\/?p=9865"},"modified":"2025-11-07T07:28:21","modified_gmt":"2025-11-07T07:28:21","slug":"how-to-fit-an-outside-tap-isolation-backflow-prevention-freezing-protection","status":"publish","type":"post","link":"https:\/\/tradefoxapp.com\/fr\/how-to-fit-an-outside-tap-isolation-backflow-prevention-freezing-protection\/","title":{"rendered":"Comment installer un robinet ext\u00e9rieur : isolation, pr\u00e9vention des retours d'eau et protection contre le gel"},"content":{"rendered":"
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Les robinets d'ext\u00e9rieur semblent simples, il s'agit simplement d'une prise pratique pour le tuyau d'arrosage, n'est-ce pas ? Mais demandez \u00e0 n'importe quel plombier qui a d\u00fb r\u00e9parer un mur de cuisine inond\u00e9 ou une canalisation \u00e9clat\u00e9e en plein hiver, et il vous le dira : il y a une bonne fa\u00e7on d'installer un robinet.<\/span><\/p>

Au Royaume-Uni, les raccords d'eau sont plus qu'une commodit\u00e9 ; ils font l'objet d'une r\u00e9glementation pour de bonnes raisons.<\/span><\/p>

Un robinet ext\u00e9rieur correctement install\u00e9 doit vous permettre d'arroser les plantes ou de laver la voiture sans risque de contamination, de fuites ou de d\u00e9g\u00e2ts dus au gel.\u00a0<\/span><\/p>

Cela signifie qu'il faut penser, au-del\u00e0 de la t\u00eate de robinet, aux vannes d'isolement, \u00e0 la protection anti-retour et \u00e0 la mani\u00e8re de garantir la s\u00e9curit\u00e9 lorsque le gel s'installe.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Les bases juridiques et pratiques\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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En vertu de la r\u00e9glementation britannique de 1999 sur l'approvisionnement en eau (raccords d'eau), les robinets ext\u00e9rieurs font partie d'une cat\u00e9gorie qui n\u00e9cessite une protection contre les retours d'eau, c'est-\u00e0-dire que l'eau s'\u00e9coule \u00e0 l'envers dans votre syst\u00e8me d'approvisionnement en eau. C'est pourquoi un double clapet anti-retour est obligatoire.<\/span><\/p>

Il convient \u00e9galement de noter que si vous modifiez la plomberie existante, en particulier du c\u00f4t\u00e9 du r\u00e9seau, cela peut techniquement \u00eatre consid\u00e9r\u00e9 comme une <\/span>installation de raccords d'eau<\/span><\/i> en vertu des r\u00e8glements locaux.\u00a0<\/span><\/p>

Bien que la plupart des robinets ext\u00e9rieurs domestiques ne n\u00e9cessitent pas de notification officielle, les travaux doivent \u00eatre conformes \u00e0 la r\u00e9glementation.<\/span><\/p>

Pour ce qui est de l'emplacement, une bonne r\u00e8gle de base consiste \u00e0 le placer entre 500 et 750 mm au-dessus du sol. Placez-la pr\u00e8s d'une arriv\u00e9e d'eau froide existante (le plus souvent sous l'\u00e9vier de la cuisine) afin d'\u00e9viter les longs trajets de tuyauterie. Moins de distance signifie moins de joints et moins de risques de fuites.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Planification de l'installation\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Comme pour tout travail, la r\u00e9ussite commence avant de prendre un outil. Le meilleur endroit pour un robinet ext\u00e9rieur est une section de mur ext\u00e9rieur situ\u00e9e directement derri\u00e8re une arriv\u00e9e d'eau froide interne.\u00a0<\/span><\/p>

Les cuisines sont id\u00e9ales car la plupart des foyers britanniques disposent d'un tuyau en cuivre ou en plastique accessible menant \u00e0 l'\u00e9vier.<\/span><\/p>

Avant de couper ou de percer, assurez-vous que le robinet d'arr\u00eat principal est ferm\u00e9 et que la tuyauterie est vidang\u00e9e. Le trou dans le mur doit \u00eatre l\u00e9g\u00e8rement inclin\u00e9 <\/span>vers le bas<\/span><\/i> vers l'ext\u00e9rieur, cette simple pente aide l'eau \u00e0 s'\u00e9couler et non \u00e0 entrer.<\/span><\/p>

Prenez vos outils : Un tuyau en cuivre ou en plastique de 15 mm, une vanne d'isolement, un double clapet anti-retour, un raccord de robinet ext\u00e9rieur, du ruban PTFE, une plaque murale, une perceuse avec une m\u00e8che \u00e0 ma\u00e7onnerie et du mastic de silicone. La liste n'est pas longue, mais chaque \u00e9l\u00e9ment est important.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Isolation : Contr\u00f4ler le flux en toute s\u00e9curit\u00e9\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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L'isolation d'une vanne est l'un de ces d\u00e9tails qui font d'un travail propre un travail propre. Il permet de couper l'eau au robinet ext\u00e9rieur sans fermer toute la maison.<\/span><\/p>

La vanne doit \u00eatre plac\u00e9e juste apr\u00e8s le t\u00e9 sur la tuyauterie interne. De cette mani\u00e8re, la conduite ext\u00e9rieure peut \u00eatre isol\u00e9e ou vidang\u00e9e si n\u00e9cessaire.\u00a0<\/span><\/p>

De nombreux professionnels ajoutent un robinet de vidange \u00e0 c\u00f4t\u00e9, en particulier dans les maisons anciennes d\u00e9pourvues d'isolation moderne. De cette fa\u00e7on, vous pouvez purger la conduite avant l'hiver, sans fissures dans les tuyaux et sans surprises.<\/span><\/p>

Les robinets \u00e0 levier et les robinets de service fonctionnent bien, mais les robinets \u00e0 levier sont plus faciles \u00e0 actionner rapidement. Veillez simplement \u00e0 ce que les raccords soient des raccords \u00e0 compression ou \u00e0 embo\u00eetement homologu\u00e9s pour l'eau potable et \u00e0 ce que le joint soit bien serr\u00e9, mais pas trop.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Pr\u00e9vention des retours d'eau : Respecter la r\u00e9glementation britannique\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Voici ce qui est grave. On parle de refoulement lorsque l'eau s'\u00e9coule en sens inverse, par exemple un tuyau d'arrosage dans un seau boueux ou un m\u00e9lange d'engrais, et que cette eau contamin\u00e9e s'infiltre dans votre r\u00e9seau propre. C'est pourquoi la pr\u00e9vention des retours d'eau n'est pas n\u00e9gociable.<\/span><\/p>

La r\u00e9glementation britannique exige la pr\u00e9sence d'un double clapet anti-retour sur tout robinet d'eau ext\u00e9rieur. Il s'agit d'un simple raccord en ligne dot\u00e9 de deux soupapes \u00e0 ressort qui n'autorisent qu'un seul sens d'\u00e9coulement. Vous pouvez l'installer \u00e0 l'int\u00e9rieur de la propri\u00e9t\u00e9, id\u00e9alement juste apr\u00e8s la vanne d'isolement.\u00a0<\/span><\/p>

Certains robinets ext\u00e9rieurs modernes sont \u00e9quip\u00e9s d'un clapet anti-retour int\u00e9gr\u00e9, mais ne le prenez pas pour argent comptant, v\u00e9rifiez qu'il est approuv\u00e9 par le WRAS et qu'il est conforme.<\/span><\/p>

Pour une plus grande tranquillit\u00e9 d'esprit, l'agr\u00e9ment WRAS (Water Regulations Advisory Scheme) est synonyme de s\u00e9curit\u00e9 et de couverture d'assurance. Sauter cette \u00e9tape peut vous faire gagner quelques minutes, mais cela peut vous co\u00fbter cher en cas de contamination.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Acheminement et fixation des tuyaux\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Maintenant que les raccordements internes sont termin\u00e9s, il est temps de faire passer le tuyau \u00e0 travers le mur. Un tuyau en cuivre ou en plastique de 15 mm est la norme pour la plupart des installations domestiques au Royaume-Uni. Percez un trou l\u00e9g\u00e8rement plus grand que le tuyau, g\u00e9n\u00e9ralement d'environ 22 mm, et inclinez-le l\u00e9g\u00e8rement vers le bas afin que toute condensation ou eau parasite s'\u00e9coule.<\/span><\/p>

Faites passer le tuyau et fixez-le \u00e0 l'int\u00e9rieur de la maison tous les 300 \u00e0 500 mm. \u00c0 l'ext\u00e9rieur, installez une plaque arri\u00e8re de robinet ou un coude de plaque murale appropri\u00e9s ; ne comptez jamais sur le filetage du robinet pour le maintenir en place. Utilisez des chevilles et des vis inoxydables pour une fixation nette et solide.<\/span><\/p>

Avant de sceller, v\u00e9rifiez l'alignement : le robinet doit \u00eatre de niveau et facile \u00e0 atteindre, il ne doit pas d\u00e9passer de mani\u00e8re g\u00eanante ni \u00eatre trop orient\u00e9 vers le bas. Scellez l'entr\u00e9e du mur avec du silicone ou de la mousse expansive pour \u00e9viter les courants d'air et les parasites.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Protection contre le gel : La protection contre le gel : pour un fonctionnement optimal tout au long de l'hiver\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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C'est la partie que beaucoup de bricoleurs oublient, jusqu'au premier gel. Les robinets ext\u00e9rieurs sont les plus susceptibles d'\u00e9clater, surtout lorsque l'eau contenue dans les tuyaux se dilate sous l'effet du gel.<\/span><\/p>

Commencez par le calorifugeage. Isolez la tuyauterie ext\u00e9rieure avec des manchons en mousse con\u00e7us pour l'ext\u00e9rieur, puis entourez-les de ruban adh\u00e9sif imperm\u00e9able pour emp\u00eacher l'humidit\u00e9 de p\u00e9n\u00e9trer. Ne laissez pas d'espace autour des coudes ou des joints.<\/span><\/p>

Ensuite, installez un couvercle de robinet ou un manteau antigel avant que les temp\u00e9ratures ne chutent. Ils ne co\u00fbtent pas cher et font une grande diff\u00e9rence.\u00a0<\/span><\/p>

Si vous avez install\u00e9 ce robinet de vidange plus t\u00f4t, utilisez-le chaque hiver, fermez la vanne d'isolement, ouvrez le robinet ext\u00e9rieur et vidangez compl\u00e8tement la section.<\/span><\/p>

Certaines installations modernes sont \u00e9quip\u00e9es de robinets ext\u00e9rieurs \u00e0 l'\u00e9preuve du gel avec un m\u00e9canisme de vidange automatique int\u00e9gr\u00e9. Ces robinets co\u00fbtent un peu plus cher, mais ils sont rentabilis\u00e9s par le temps de r\u00e9paration qu'ils permettent d'\u00e9conomiser.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Essais, mise en service et essais finaux\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Une fois que tout est connect\u00e9, ouvrez d'abord la vanne d'isolement, puis ouvrez lentement le robinet d'arr\u00eat principal. Laissez le syst\u00e8me se remplir et v\u00e9rifiez l'absence d'humidit\u00e9 dans chaque joint \u00e0 l'aide d'un mouchoir en papier ou d'un doigt. La moindre goutte d'eau signifie qu'un raccord \u00e0 compression a besoin d'\u00eatre resserr\u00e9.<\/span><\/p>

Faites couler le robinet ext\u00e9rieur pendant quelques secondes pour \u00e9liminer les d\u00e9bris et v\u00e9rifier le bon \u00e9coulement. Lorsque vous fermez le robinet, v\u00e9rifiez qu'il n'y a pas de gouttes retard\u00e9es, car il peut s'agir d'une rondelle us\u00e9e ou d'un filetage mal scell\u00e9.\u00a0<\/span><\/p>

Enfin, assurez-vous que l'isolation recouvre tous les tuyaux expos\u00e9s et que la zone du robinet est ferme et s\u00fbre.<\/span><\/p>

Les bons plombiers v\u00e9rifient toujours les clapets anti-retour apr\u00e8s l'installation. Un rapide test de refoulement devrait permettre de confirmer que l'\u00e9coulement se fait uniquement dans un sens.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Des outils comme Tradefox pour la pratique et la planification\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Si vous d\u00e9butez dans la plomberie ou si vous souhaitez perfectionner vos comp\u00e9tences avant de travailler sur des syst\u00e8mes r\u00e9els, des plateformes de simulation telles que <\/span>Tradefox<\/b> sont tr\u00e8s utiles. Vous pouvez vous entra\u00eener \u00e0 poser des vannes d'isolement, \u00e0 acheminer des tuyaux et m\u00eame \u00e0 r\u00e9aliser des sc\u00e9narios de refoulement sans gaspillage de mat\u00e9riel ni risque.<\/span><\/p>

De nombreux apprentis et artisans ind\u00e9pendants l'utilisent pour rester aff\u00fbt\u00e9s entre deux travaux r\u00e9els. C'est un excellent moyen de s'entra\u00eener \u00e0 la pr\u00e9cision n\u00e9cessaire pour les travaux de robinetterie \u00e0 l'ext\u00e9rieur.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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R\u00e9sultat final\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Un robinet ext\u00e9rieur bien install\u00e9 est l'une de ces petites am\u00e9liorations domestiques qui ajoutent discr\u00e8tement un confort \u00e0 long terme, \u00e0 condition qu'il soit bien fait. Les trois r\u00e8gles d'or ?\u00a0<\/span><\/p>

Installez une vanne d'isolement, un double clapet anti-retour approuv\u00e9 par le WRAS et prot\u00e9gez-vous contre le gel. Si vous omettez l'une de ces mesures, vous vous exposez \u00e0 des fuites, \u00e0 une contamination ou \u00e0 des fissures dans la tuyauterie.<\/span><\/p>

Que vous soyez un bricoleur qui am\u00e9liore son installation ou un artisan qui maintient les normes, l'objectif est le m\u00eame : rendre l'installation propre, conforme et r\u00e9sistante. Lorsque le travail est bien fait, vous n'aurez plus \u00e0 y penser, et c'est le meilleur travail de plomberie qui soit.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Outdoor taps seem simple, just a handy outlet for the garden hose, right? But ask any plumber who\u2019s had to fix a flooded kitchen wall or a burst pipe mid-winter, and they\u2019ll tell you: there\u2019s a right way to fit one. In the UK, water fittings are more than convenience; they\u2019re subject to regulation for […]<\/p>\n","protected":false},"author":1,"featured_media":9884,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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