{"id":22685,"date":"2025-05-30T11:31:36","date_gmt":"2025-05-30T03:31:36","guid":{"rendered":"https:\/\/ifanplus.com\/?p=22685"},"modified":"2025-05-30T11:31:55","modified_gmt":"2025-05-30T03:31:55","slug":"comprendre-la-structure-du-tuyau-pex-al-pex","status":"publish","type":"post","link":"https:\/\/ifanplus.com\/fr\/connaissance\/comprendre-la-structure-du-tuyau-pex-al-pex\/","title":{"rendered":"Comprendre la structure des tuyaux PEX-AL-PEX"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Dans le monde en \u00e9volution rapide de la technologie de la plomberie, peu de mat\u00e9riaux ont suscit\u00e9 autant d\u2019int\u00e9r\u00eat et d\u2019enthousiasme que <a href=\"https:\/\/ifanplus.com\/fr\/product-category\/industrie-du-plastique\/pex\/\">PEX-AL-PEX<\/a>Ce tuyau unique allie les meilleures propri\u00e9t\u00e9s du plastique et du m\u00e9tal, offrant une solution robuste, flexible et hautement durable pour une large gamme de syst\u00e8mes de plomberie et de chauffage. Face \u00e0 l&#039;exigence croissante d&#039;efficacit\u00e9 et de long\u00e9vit\u00e9, il est d&#039;autant plus crucial de comprendre la structure interne de ces tuyaux.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Contrairement aux tuyaux de plomberie traditionnels, le PEX-AL-PEX n&#039;est pas un produit mono-mat\u00e9riau. Il s&#039;agit plut\u00f4t d&#039;un tube composite multicouche incorporant plusieurs mat\u00e9riaux travaillant en synergie. Chaque couche joue un r\u00f4le crucial, non seulement pour garantir des performances \u00e0 long terme, mais aussi pour r\u00e9pondre \u00e0 des exigences techniques et fonctionnelles sp\u00e9cifiques.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans cet article complet, nous approfondirons la structure du tube PEX-AL-PEX. Nous examinerons chaque couche en d\u00e9tail, analyserons leurs interactions et expliquerons l&#039;efficacit\u00e9 de cette conception. Nous soulignerons \u00e9galement les avantages, les d\u00e9fis et les applications typiques qui d\u00e9montrent l&#039;utilit\u00e9 concr\u00e8te de ce mat\u00e9riau remarquable.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-exactly-is-pex-al-pex-pipe\">Qu&#039;est-ce qu&#039;un tuyau PEX-AL-PEX exactement ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pour commencer, le PEX-AL-PEX est un tube composite \u00e0 cinq couches. Comme son nom l&#039;indique, il associe du poly\u00e9thyl\u00e8ne r\u00e9ticul\u00e9 (PEX) et de l&#039;aluminium (AL) en couches altern\u00e9es. La structure comprend g\u00e9n\u00e9ralement une couche interne de PEX, un noyau central en aluminium et une couche externe de PEX, s\u00e9par\u00e9es par deux couches adh\u00e9sives.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette conception cr\u00e9e un tuyau plus rigide que le PEX standard, mais plus flexible que ses alternatives m\u00e9talliques comme le cuivre. Gr\u00e2ce \u00e0 cette construction hybride, le PEX-AL-PEX est largement utilis\u00e9 dans les syst\u00e8mes d&#039;eau chaude et froide, ainsi que dans les applications de chauffage radiant.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Examinons maintenant chaque couche individuellement pour comprendre la complexit\u00e9 et la sophistication de cette structure.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-inner-pex-layer-contact-with-water\">Couche int\u00e9rieure PEX\u00a0: contact avec l&#039;eau<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Au c\u0153ur du tube PEX-AL-PEX se trouve la couche interne de PEX. C&#039;est la partie en contact direct avec l&#039;eau ou les autres fluides transport\u00e9s. Elle joue un r\u00f4le essentiel dans la compatibilit\u00e9 chimique, le maintien de la qualit\u00e9 de l&#039;eau et la r\u00e9sistance \u00e0 la corrosion.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gr\u00e2ce au proc\u00e9d\u00e9 de r\u00e9ticulation, la couche interne en PEX offre une excellente durabilit\u00e9 et une excellente r\u00e9sistance thermique. De plus, sa douceur r\u00e9duit les pertes par frottement et l&#039;entartrage. Il en r\u00e9sulte un meilleur \u00e9coulement de l&#039;eau et une maintenance r\u00e9duite au fil du temps.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De plus, le PEX \u00e9tant non m\u00e9tallique, il n&#039;alt\u00e8re ni le go\u00fbt, ni l&#039;odeur, ni la composition de l&#039;eau. Il convient donc parfaitement aux r\u00e9seaux d&#039;eau potable, garantissant ainsi s\u00e9curit\u00e9 et hygi\u00e8ne \u00e0 tout moment.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-first-adhesive-layer-bonding-strength\">Premi\u00e8re couche adh\u00e9sive : force de liaison<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La premi\u00e8re couche adh\u00e9sive entoure directement le PEX interne. Bien que fine, cette couche remplit une fonction essentielle\u00a0: elle lie le poly\u00e9thyl\u00e8ne \u00e0 l&#039;\u00e2me en aluminium. Sans cet adh\u00e9sif, les couches ne tiendraient pas ensemble sous la pression ou les variations de temp\u00e9rature.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cet adh\u00e9sif est sp\u00e9cialement formul\u00e9 pour r\u00e9sister aux contraintes m\u00e9caniques et aux variations de temp\u00e9rature. De plus, il pr\u00e9vient le d\u00e9laminage, un point de d\u00e9faillance fr\u00e9quent des canalisations multi-mat\u00e9riaux, prolongeant ainsi la dur\u00e9e de vie de l&#039;ensemble du syst\u00e8me.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-aluminum-core-structural-integrity\">Noyau en aluminium\u00a0: int\u00e9grit\u00e9 structurelle<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La pi\u00e8ce ma\u00eetresse du tube PEX-AL-PEX est son \u00e2me en aluminium. Cette couche conf\u00e8re au tube sa r\u00e9sistance et sa m\u00e9moire de forme caract\u00e9ristiques. Elle permet au tube d&#039;\u00eatre pli\u00e9 et de rester en place, ce qui simplifie consid\u00e9rablement l&#039;installation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De plus, la couche d&#039;aluminium agit comme une barri\u00e8re contre l&#039;oxyg\u00e8ne. Cette caract\u00e9ristique est particuli\u00e8rement importante dans les syst\u00e8mes de chauffage, o\u00f9 l&#039;infiltration d&#039;oxyg\u00e8ne peut entra\u00eener la corrosion des composants m\u00e9talliques tels que les radiateurs et les pompes. En bloquant la diffusion d&#039;oxyg\u00e8ne, la couche d&#039;aluminium prot\u00e8ge l&#039;ensemble du syst\u00e8me.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De plus, l&#039;\u00e2me m\u00e9tallique r\u00e9duit \u00e9galement la dilatation thermique. Contrairement aux tuyaux en plastique pur, qui peuvent s&#039;allonger consid\u00e9rablement sous l&#039;effet de la chaleur, le PEX-AL-PEX conserve une forme plus stable. Cette stabilit\u00e9 dimensionnelle emp\u00eache le bruit d\u00fb aux mouvements du tuyau et r\u00e9duit les contraintes sur les raccords.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-second-adhesive-layer-double-sided-security\">Deuxi\u00e8me couche adh\u00e9sive : s\u00e9curit\u00e9 double face<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Autour du noyau en aluminium se trouve la deuxi\u00e8me couche adh\u00e9sive. Tout comme la premi\u00e8re, elle assure une liaison solide, cette fois entre l&#039;aluminium et la couche ext\u00e9rieure en PER. Ce syst\u00e8me adh\u00e9sif double face renforce la stabilit\u00e9 et l&#039;int\u00e9grit\u00e9 structurelles du tube.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il est important de noter que cet adh\u00e9sif suppl\u00e9mentaire contribue \u00e9galement \u00e0 la r\u00e9sistance \u00e0 la pression. Le tuyau est ainsi mieux \u00e0 m\u00eame de supporter les conditions de haute pression couramment rencontr\u00e9es dans les syst\u00e8mes r\u00e9sidentiels et commerciaux.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-outer-pex-layer-external-protection\">Couche ext\u00e9rieure PEX\u00a0: protection externe<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La couche externe du PEX-AL-PEX est une autre gaine en poly\u00e9thyl\u00e8ne r\u00e9ticul\u00e9. Tandis que la couche interne de PEX assure la s\u00e9curit\u00e9 interne, la couche externe prot\u00e8ge le tube des agressions ext\u00e9rieures, notamment l&#039;abrasion, l&#039;exposition aux UV (dans certaines formulations) et les chocs lors du transport ou de l&#039;installation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De plus, la couche ext\u00e9rieure en PEX am\u00e9liore l&#039;isolation thermique, prot\u00e9geant le tube des variations de temp\u00e9rature et des contraintes m\u00e9caniques externes. Dans les installations o\u00f9 le tube est expos\u00e9 \u00e0 des mat\u00e9riaux de construction ou \u00e0 des environnements extr\u00eames, cette couche s&#039;av\u00e8re pr\u00e9cieuse.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-the-layers-work-together\">Comment les calques fonctionnent ensemble<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Maintenant que nous avons examin\u00e9 chaque composant individuellement, il est crucial de comprendre comment ils interagissent en tant que syst\u00e8me unifi\u00e9. Chaque couche, bien que fonctionnelle individuellement, n&#039;atteint son potentiel maximal que lorsqu&#039;elle est li\u00e9e aux autres.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les couches adh\u00e9sives lient l&#039;ensemble de la structure, assurant la coh\u00e9sion et emp\u00eachant toute s\u00e9paration des couches. L&#039;aluminium, quant \u00e0 lui, agit comme une ossature, assurant rigidit\u00e9 et r\u00e9sistance, tandis que les deux couches de PEX offrent flexibilit\u00e9 et r\u00e9sistance chimique. Cette synergie cr\u00e9e un tube non seulement robuste et fiable, mais aussi hautement adaptable.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-advantages-of-the-multi-layer-structure\">Avantages de la structure multicouche<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Gr\u00e2ce \u00e0 une meilleure compr\u00e9hension de la structure interne du PEX-AL-PEX, nous pouvons d\u00e9sormais explorer ses nombreux avantages. Tout d&#039;abord, sa composition multicouche am\u00e9liore la r\u00e9sistance du tube \u00e0 la temp\u00e9rature et \u00e0 la pression. Il est donc parfaitement adapt\u00e9 aux applications exigeantes comme la distribution d&#039;eau chaude et le chauffage par le sol.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Deuxi\u00e8mement, le noyau en aluminium minimise la dilatation, permettant des installations s\u00fbres et silencieuses. Contrairement aux tuyaux PER classiques, qui peuvent bouger et g\u00e9n\u00e9rer du bruit en se dilatant, le PEX-AL-PEX reste stable et silencieux.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Troisi\u00e8mement, la structure emp\u00eache la p\u00e9n\u00e9tration de l&#039;oxyg\u00e8ne. Cette caract\u00e9ristique prot\u00e8ge les syst\u00e8mes de chauffage de la corrosion, prolongeant ainsi leur dur\u00e9e de vie et am\u00e9liorant leur efficacit\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Quatri\u00e8mement, le PEX-AL-PEX offre une grande flexibilit\u00e9. M\u00eame avec son \u00e2me m\u00e9tallique, il peut \u00eatre pli\u00e9 \u00e0 la main et conserver sa forme. Cela simplifie le passage \u00e0 travers les murs, les sols et les plafonds.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Enfin, la construction multicouche contribue \u00e0 une durabilit\u00e9 \u00e0 long terme. Chaque couche jouant un r\u00f4le sp\u00e9cifique, le tuyau subit moins d&#039;usure au fil du temps, ce qui prolonge sa dur\u00e9e de vie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-common-applications-of-pex-al-pex-pipe\">Applications courantes des tuyaux PEX-AL-PEX<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Gr\u00e2ce \u00e0 sa structure unique, le PEX-AL-PEX est utilis\u00e9 dans un large \u00e9ventail d&#039;applications. Parmi celles-ci, on peut citer\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Plancher chauffant<\/li>\n\n\n\n<li>Distribution d&#039;eau chaude et froide<\/li>\n\n\n\n<li>Syst\u00e8mes de fonte de neige<\/li>\n\n\n\n<li>Syst\u00e8mes de chauffage hydronique<\/li>\n\n\n\n<li>Conduites d&#039;eau glac\u00e9e<\/li>\n\n\n\n<li>Syst\u00e8mes d&#039;air comprim\u00e9 (dans certains cas)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Sa capacit\u00e9 \u00e0 g\u00e9rer des temp\u00e9ratures \u00e9lev\u00e9es et basses, ainsi que sa stabilit\u00e9 et ses propri\u00e9t\u00e9s de blocage de l&#039;oxyg\u00e8ne, en font un choix id\u00e9al pour de tels syst\u00e8mes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-structural-performance-under-stress\">Performance structurelle sous contrainte<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Un autre aspect important de la structure r\u00e9side dans sa r\u00e9sistance aux contraintes m\u00e9caniques et thermiques. Gr\u00e2ce \u00e0 son \u00e2me en aluminium et \u00e0 ses adh\u00e9sifs puissants, le PEX-AL-PEX conserve sa forme et sa r\u00e9sistance m\u00eame sous des cycles de contraintes r\u00e9p\u00e9t\u00e9s.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Install\u00e9 dans des zones soumises \u00e0 de fr\u00e9quents changements de temp\u00e9rature ou \u00e0 des coups de b\u00e9lier, le PEX-AL-PEX se r\u00e9v\u00e8le tr\u00e8s r\u00e9sistant. Il r\u00e9siste \u00e0 la d\u00e9formation et conserve ses caract\u00e9ristiques d&#039;\u00e9coulement mieux que les alternatives mono-mat\u00e9riaux.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-installation-benefits-rooted-in-structure\">Avantages de l&#039;installation ancr\u00e9s dans la structure<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La structure interne du PEX-AL-PEX influence directement sa facilit\u00e9 d&#039;installation. Comme le tuyau conserve sa forme m\u00eame lorsqu&#039;il est pli\u00e9, il \u00e9limine le besoin de nombreux raccords. Moins de joints signifie moins de points de fuite potentiels et une installation plus rapide.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De plus, la capacit\u00e9 du tuyau \u00e0 fonctionner avec une large gamme de connecteurs, notamment les raccords \u00e0 compression, \u00e0 sertir et \u00e0 sertir, le rend encore plus polyvalent sur le terrain.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-long-term-structural-stability\">Stabilit\u00e9 structurelle \u00e0 long terme<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Au fil du temps, de nombreux tuyaux se d\u00e9gradent sous l&#039;effet des agressions environnementales. Cependant, la conception multicouche du PEX-AL-PEX permet de r\u00e9sister \u00e0 cette d\u00e9gradation. Le PEX ext\u00e9rieur prot\u00e8ge l&#039;aluminium, tandis que l&#039;aluminium prot\u00e8ge les couches int\u00e9rieures de l&#039;oxyg\u00e8ne et de la d\u00e9formation. Ensemble, ces caract\u00e9ristiques pr\u00e9servent les performances pendant des d\u00e9cennies d&#039;utilisation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-environmental-and-economic-benefits\">Avantages environnementaux et \u00e9conomiques<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L&#039;efficacit\u00e9 structurelle du PEX-AL-PEX pr\u00e9sente \u00e9galement des avantages environnementaux et \u00e9conomiques. Gr\u00e2ce \u00e0 sa durabilit\u00e9 et sa r\u00e9sistance aux dommages, le tube n\u00e9cessite moins de r\u00e9parations et de remplacements, ce qui r\u00e9duit le gaspillage de mat\u00e9riaux et les d\u00e9penses \u00e0 long terme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De plus, sa faible dilatation thermique permet de r\u00e9aliser des \u00e9conomies d&#039;\u00e9nergie dans les applications de chauffage. La barri\u00e8re \u00e0 l&#039;oxyg\u00e8ne prolonge la dur\u00e9e de vie des syst\u00e8mes connect\u00e9s, r\u00e9duisant ainsi les co\u00fbts de maintenance et am\u00e9liorant la durabilit\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion-a-structure-built-for-the-future\">Conclusion : une structure construite pour l&#039;avenir<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">En conclusion, la structure multicouche du tube PEX-AL-PEX est une prouesse technologique alliant r\u00e9sistance, flexibilit\u00e9 et durabilit\u00e9. Chaque composant joue un r\u00f4le essentiel et, ensemble, ils cr\u00e9ent un tube qui surpasse de nombreux mat\u00e9riaux traditionnels.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En comprenant son architecture interne \u2013 PEX interne, double couche adh\u00e9sive, noyau en aluminium et enveloppe protectrice externe \u2013, nous comprenons pleinement pourquoi le PEX-AL-PEX est de plus en plus utilis\u00e9 dans les syst\u00e8mes de plomberie modernes. Du chauffage \u00e0 l&#039;alimentation en eau potable, sa structure est la base de l&#039;efficacit\u00e9, de la fiabilit\u00e9 et de la durabilit\u00e9 des performances.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Face \u00e0 l&#039;\u00e9volution des normes de construction et \u00e0 la demande croissante de mat\u00e9riaux haute performance, le PEX-AL-PEX est pr\u00eat \u00e0 relever ces d\u00e9fis. Sa structure soigneusement con\u00e7ue lui permet de rester un choix privil\u00e9gi\u00e9 des professionnels comme des propri\u00e9taires.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-ifan-international-standard\">Norme internationale IFAN<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les produits IFAN sont conformes \u00e0 diverses normes internationales reconnues pour garantir qualit\u00e9 et fiabilit\u00e9. Ces normes comprennent les normes ISO 15875, GB\/T 18992, DIN 16892, ASTM F877, ASTM F2788, BS 7291, BS EN ISO 15875 et CSA B137. L&#039;obtention de ces certifications t\u00e9moigne de l&#039;engagement d&#039;IFAN \u00e0 r\u00e9pondre aux exigences mondiales en mati\u00e8re de performance, de s\u00e9curit\u00e9 et de durabilit\u00e9 des syst\u00e8mes de tuyauterie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-contact\">Contact<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">IFAN est un fabricant professionnel fort de 30 ans d&#039;exp\u00e9rience, sp\u00e9cialis\u00e9 dans la production de tuyaux, raccords et vannes en plastique de haute qualit\u00e9. Nos produits comprennent des vannes en laiton, des vannes en PPR, ainsi que divers tuyaux et raccords pour r\u00e9pondre aux diff\u00e9rents besoins de nos clients. Que vous ayez besoin de tuyaux de plomberie et d&#039;\u00e9vacuation ou de vannes, IFAN propose une gamme diversifi\u00e9e de produits de haute qualit\u00e9 et \u00e9conomiques pour vos projets. Vous trouverez nos coordonn\u00e9es ci-dessous.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nous r\u00e9pondrons \u00e0 votre e-mail ou fax dans les 24 heures.<br>Vous pouvez nous appeler \u00e0 tout moment si vous avez des questions sur notre production.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour plus d&#039;informations, veuillez visiter notre site Web&nbsp;<a href=\"https:\/\/ifanplus.com\/fr\">https:\/\/www.ifanplus.com\/<\/a><br>Veuillez envoyer un mail \u00e0 :&nbsp;<a href=\"mailto:jack@ifangroup.com\">jack@ifangroup.com<\/a><br><a href=\"https:\/\/api.whatsapp.com\/send?phone=https:\/\/api.whatsapp.com\/send?l=en&amp;phone=8619857948982\">WhatsApp : + 86 19857948982<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>In the rapidly evolving world of plumbing technology, few materials have generated as much interest and excitement as PEX-AL-PEX. This unique pipe combines the best properties of plastic and metal, offering a robust, flexible, and highly durable solution for a wide range of plumbing and heating systems. As the demand for efficiency and longevity increases, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":22686,"comment_status":"closed","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":"","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","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":"var(--ast-global-color-5)","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":""}},"footnotes":""},"categories":[13],"tags":[429,15,625,340,232],"class_list":["post-22685","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-pex-al-pex-pipe","tag-pex-fittings","tag-pex-pipe-connector","tag-pex-pipe-fitting","tag-pex-plumbing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v27.7) - 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