{"id":22566,"date":"2025-05-24T10:39:53","date_gmt":"2025-05-24T02:39:53","guid":{"rendered":"https:\/\/ifanplus.com\/?p=22566"},"modified":"2025-05-24T10:57:29","modified_gmt":"2025-05-24T02:57:29","slug":"a-composicao-do-material-do-tubo-pex-flexivel","status":"publish","type":"post","link":"https:\/\/ifanplus.com\/pt\/conhecimento\/a-composicao-do-material-do-tubo-pex-flexivel\/","title":{"rendered":"A composi\u00e7\u00e3o do material do tubo PEX flex\u00edvel"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Em sistemas de encanamento modernos,<a href=\"https:\/\/ifanplus.com\/pt\/product-category\/industria-de-pvc\/\"> tubo PEX flex\u00edvel <\/a>surgiu como uma solu\u00e7\u00e3o amplamente adotada devido \u00e0 sua versatilidade, facilidade de instala\u00e7\u00e3o e durabilidade. No entanto, para aproveitar plenamente suas vantagens, \u00e9 essencial compreender a composi\u00e7\u00e3o do material que constitui a espinha dorsal desta solu\u00e7\u00e3o de tubula\u00e7\u00e3o inovadora. Neste artigo, exploraremos os principais materiais utilizados em tubos PEX flex\u00edveis, sua estrutura qu\u00edmica e as raz\u00f5es por tr\u00e1s de sua ampla utiliza\u00e7\u00e3o. Al\u00e9m disso, nos aprofundaremos nos processos de fabrica\u00e7\u00e3o e como eles afetam o desempenho do produto final.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-introduction-to-flexible-pex-pipe\">Introdu\u00e7\u00e3o ao tubo PEX flex\u00edvel<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Em primeiro lugar, PEX significa polietileno reticulado, um tipo de pl\u00e1stico que foi alterado qu\u00edmica ou fisicamente para aprimorar suas propriedades. Ao contr\u00e1rio do polietileno tradicional, que \u00e9 suscet\u00edvel \u00e0 deforma\u00e7\u00e3o sob calor ou press\u00e3o, o polietileno reticulado oferece maior resist\u00eancia, estabilidade t\u00e9rmica e resist\u00eancia a rachaduras. Como resultado, tornou-se um produto essencial em aplica\u00e7\u00f5es hidr\u00e1ulicas residenciais e comerciais.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Al\u00e9m disso, o tubo PEX flex\u00edvel pode ser facilmente dobrado e contornado por obst\u00e1culos, tornando-o altamente conveniente para os instaladores. Essa flexibilidade, aliada a um desempenho duradouro, o torna uma alternativa atraente \u00e0s tubula\u00e7\u00f5es de cobre ou pl\u00e1stico r\u00edgido.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-basic-structure-of-pex-pipe\">Estrutura b\u00e1sica do tubo PEX<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Para come\u00e7ar, o material base de todas as tubula\u00e7\u00f5es PEX \u00e9 o polietileno de alta densidade, ou PEAD. Este material \u00e9 derivado do etileno, um hidrocarboneto que, ao ser polimerizado, cria longas cadeias de polietileno. No entanto, diferentemente dos produtos PEAD convencionais, o PEX passa por um processo de reticula\u00e7\u00e3o. Essa transforma\u00e7\u00e3o \u00e9 o que confere ao PEX suas propriedades \u00fanicas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Embora o termo PEX se refira amplamente ao polietileno reticulado, existem tr\u00eas tipos principais baseados no m\u00e9todo de reticula\u00e7\u00e3o:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>PEX-A, produzido pelo m\u00e9todo do per\u00f3xido<\/li>\n\n\n\n<li>PEX-B, produzido pelo m\u00e9todo do silano<\/li>\n\n\n\n<li>PEX-C, produzido pelo m\u00e9todo do feixe de el\u00e9trons<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Cada m\u00e9todo produz caracter\u00edsticas de material ligeiramente diferentes, que ser\u00e3o discutidas em maiores detalhes abaixo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-composition-of-raw-material-high-density-polyethylene\">Composi\u00e7\u00e3o da Mat\u00e9ria-Prima: Polietileno de Alta Densidade<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Como mencionado anteriormente, o componente fundamental dos tubos PEX flex\u00edveis \u00e9 o polietileno de alta densidade. Este pol\u00edmero termopl\u00e1stico \u00e9 selecionado por sua resist\u00eancia, rigidez e capacidade de suportar temperaturas elevadas. Em sua forma bruta, o PEAD \u00e9 composto por \u00e1tomos de carbono e hidrog\u00eanio, formando uma estrutura repetitiva de unidades de CH\u2082.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">No entanto, o PEAD sozinho n\u00e3o consegue atender \u00e0s exigentes condi\u00e7\u00f5es exigidas em sistemas de encanamento. Por esse motivo, a reticula\u00e7\u00e3o \u00e9 necess\u00e1ria para aprimorar a estrutura molecular, transformando-o em PEX.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-cross-linking-the-game-changer\">Reticula\u00e7\u00e3o: a mudan\u00e7a radical<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Agora, vamos voltar nossa aten\u00e7\u00e3o para o processo de reticula\u00e7\u00e3o, que altera significativamente as propriedades do polietileno.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-pex-a-the-peroxide-method\">PEX-A: O M\u00e9todo do Per\u00f3xido<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Neste m\u00e9todo, per\u00f3xidos org\u00e2nicos s\u00e3o usados para iniciar o processo de reticula\u00e7\u00e3o. O polietileno \u00e9 misturado a um composto de per\u00f3xido e, em seguida, extrudado sob altas temperaturas. O calor quebra o per\u00f3xido, gerando radicais livres que fazem com que as cadeias de polietileno se liguem umas \u00e0s outras.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Devido \u00e0 uniformidade da reticula\u00e7\u00e3o, o PEX-A oferece flexibilidade e resili\u00eancia superiores. Al\u00e9m disso, \u00e9 menos propenso a tor\u00e7\u00f5es, o que o torna a escolha ideal para sistemas de \u00e1gua residenciais.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-pex-b-the-silane-method\">PEX-B: O M\u00e9todo Silano<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Alternativamente, o PEX-B \u00e9 produzido usando um m\u00e9todo de silano de cura por umidade. Nesse processo, o enxerto de silano ocorre durante a extrus\u00e3o, e o tubo \u00e9 posteriormente exposto \u00e0 umidade, o que completa a reticula\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Embora o PEX-B possa n\u00e3o ser t\u00e3o flex\u00edvel quanto o PEX-A, ele oferece melhor resist\u00eancia ao cloro e \u00e0 degrada\u00e7\u00e3o oxidativa. Por isso, \u00e9 comumente utilizado em sistemas de \u00e1gua municipais.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-pex-c-the-electron-beam-method\">PEX-C: O M\u00e9todo do Feixe de El\u00e9trons<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Por fim, o PEX-C envolve a exposi\u00e7\u00e3o do PEAD a um feixe de el\u00e9trons de alta energia, que induz a reticula\u00e7\u00e3o por meio de radia\u00e7\u00e3o. Embora esse m\u00e9todo evite aditivos qu\u00edmicos, pode levar a uma densidade de reticula\u00e7\u00e3o menos consistente.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">No entanto, o PEX-C continua sendo uma escolha vi\u00e1vel para aplica\u00e7\u00f5es que exigem flexibilidade e durabilidade moderadas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-additives-and-stabilizers\">Aditivos e Estabilizantes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Al\u00e9m do polietileno, diversos aditivos s\u00e3o inclu\u00eddos na formula\u00e7\u00e3o para melhorar o desempenho. Estes podem incluir:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Antioxidantes para prevenir a degrada\u00e7\u00e3o pela exposi\u00e7\u00e3o ao oxig\u00eanio durante a fabrica\u00e7\u00e3o e o uso<\/li>\n\n\n\n<li>Estabilizadores UV para prote\u00e7\u00e3o limitada durante armazenamento e transporte<\/li>\n\n\n\n<li>Corantes para indicar o uso de \u00e1gua quente ou fria<\/li>\n\n\n\n<li>Plastificantes, em pequenas quantidades, para melhorar a flexibilidade e as caracter\u00edsticas de manuseio<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Cada um desses aditivos desempenha um papel fundamental para garantir que o tubo tenha um desempenho ideal ao longo do tempo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-multilayer-constructions\">Constru\u00e7\u00f5es Multicamadas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c0s vezes, tubos PEX flex\u00edveis incluem m\u00faltiplas camadas para aumentar sua funcionalidade. Por exemplo:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Alguns tubos PEX s\u00e3o equipados com uma barreira de oxig\u00eanio feita de copol\u00edmero de etileno e \u00e1lcool vin\u00edlico para evitar a entrada de oxig\u00eanio, que pode corroer os componentes met\u00e1licos do sistema<\/li>\n\n\n\n<li>Em tubos PEX-AL-PEX, uma camada de alum\u00ednio \u00e9 intercalada entre duas camadas de PEX. Essa constru\u00e7\u00e3o aumenta a rigidez, mantendo alguma flexibilidade.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Esses designs multicamadas ampliam a gama de aplica\u00e7\u00f5es e permitem personaliza\u00e7\u00e3o dependendo dos requisitos do sistema.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-physical-and-mechanical-properties\">Propriedades f\u00edsicas e mec\u00e2nicas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Devido \u00e0 sua composi\u00e7\u00e3o material, o tubo PEX flex\u00edvel oferece diversas caracter\u00edsticas mec\u00e2nicas desej\u00e1veis, incluindo:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Resist\u00eancia a altas temperaturas de at\u00e9 93 graus Celsius<\/li>\n\n\n\n<li>Toler\u00e2ncia a alta press\u00e3o, normalmente 160 psi \u00e0 temperatura ambiente<\/li>\n\n\n\n<li>Excelente flexibilidade, permitindo dobrar sem acess\u00f3rios adicionais<\/li>\n\n\n\n<li>Baixa condutividade t\u00e9rmica, o que ajuda a reter o calor em sistemas de \u00e1gua quente<\/li>\n\n\n\n<li>Resist\u00eancia ao congelamento, pois pode expandir e contrair sem rachar<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Consequentemente, essas propriedades tornam o tubo PEX flex\u00edvel uma op\u00e7\u00e3o atraente para v\u00e1rios ambientes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-environmental-and-safety-considerations\">Considera\u00e7\u00f5es ambientais e de seguran\u00e7a<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Al\u00e9m do desempenho, a composi\u00e7\u00e3o do material PEX tamb\u00e9m contribui para a seguran\u00e7a ambiental. Por exemplo:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PEX \u00e9 livre de metais pesados e plastificantes t\u00f3xicos<\/li>\n\n\n\n<li>Resiste \u00e0 lixivia\u00e7\u00e3o, tornando-o seguro para aplica\u00e7\u00f5es em \u00e1gua pot\u00e1vel<\/li>\n\n\n\n<li>N\u00e3o suporta o crescimento bacteriano<\/li>\n\n\n\n<li>Sua estrutura reticulada o torna resistente \u00e0 degrada\u00e7\u00e3o qu\u00edmica<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">No entanto, \u00e9 importante observar que o PEX n\u00e3o \u00e9 biodegrad\u00e1vel e pode liberar gases se queimado. Portanto, m\u00e9todos de descarte adequados devem ser seguidos para minimizar os danos ao meio ambiente.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-advantages-over-other-piping-materials\">Vantagens sobre outros materiais de tubula\u00e7\u00e3o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Gra\u00e7as \u00e0 sua composi\u00e7\u00e3o bem projetada, o tubo PEX flex\u00edvel oferece diversas vantagens em rela\u00e7\u00e3o aos materiais tradicionais:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Comparado ao cobre, o PEX \u00e9 mais acess\u00edvel, n\u00e3o corr\u00f3i e \u00e9 mais f\u00e1cil de instalar<\/li>\n\n\n\n<li>Comparado com pl\u00e1sticos r\u00edgidos como PVC ou CPVC, o PEX \u00e9 mais dur\u00e1vel e flex\u00edvel<\/li>\n\n\n\n<li>Comparado ao a\u00e7o galvanizado, o PEX \u00e9 mais leve e requer menos acess\u00f3rios, o que reduz o tempo de instala\u00e7\u00e3o<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Claramente, esses benef\u00edcios adv\u00eam em grande parte de sua formula\u00e7\u00e3o de material e processo de fabrica\u00e7\u00e3o exclusivos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-limitations-and-considerations\">Limita\u00e7\u00f5es e Considera\u00e7\u00f5es<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Apesar dos seus muitos benef\u00edcios, os tubos PEX flex\u00edveis apresentam limita\u00e7\u00f5es. Por exemplo:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00c9 suscet\u00edvel a danos devido \u00e0 exposi\u00e7\u00e3o prolongada \u00e0 luz UV e n\u00e3o deve ser usado ao ar livre sem prote\u00e7\u00e3o.<\/li>\n\n\n\n<li>N\u00e3o pode ser usado em sistemas que excedam suas classifica\u00e7\u00f5es de temperatura ou press\u00e3o<\/li>\n\n\n\n<li>O tipo de reticula\u00e7\u00e3o afeta seu desempenho e compatibilidade com v\u00e1rios sistemas<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Portanto, entender a composi\u00e7\u00e3o do material \u00e9 essencial para fazer escolhas informadas durante a sele\u00e7\u00e3o do tubo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-innovations-in-material-engineering\">Inova\u00e7\u00f5es em Engenharia de Materiais<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nos \u00faltimos anos, pesquisadores e fabricantes t\u00eam aprimorado continuamente a formula\u00e7\u00e3o do material PEX. Por exemplo:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nanoaditivos est\u00e3o sendo desenvolvidos para melhorar o desempenho mec\u00e2nico e t\u00e9rmico<\/li>\n\n\n\n<li>O polietileno reciclado est\u00e1 sendo introduzido em aplica\u00e7\u00f5es n\u00e3o cr\u00edticas para reduzir o desperd\u00edcio<\/li>\n\n\n\n<li>Antioxidantes e estabilizantes mais avan\u00e7ados s\u00e3o agora usados para melhorar a longevidade e a resist\u00eancia \u00e0s condi\u00e7\u00f5es agressivas da \u00e1gua<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Essas inova\u00e7\u00f5es visam estender ainda mais a vida \u00fatil e a compatibilidade ambiental dos tubos PEX flex\u00edveis.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclus\u00e3o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Em resumo, o tubo flex\u00edvel PEX deve seu excelente desempenho \u00e0 sua composi\u00e7\u00e3o de material cuidadosamente projetada. Da base de polietileno de alta densidade \u00e0 variedade de m\u00e9todos de reticula\u00e7\u00e3o e aditivos funcionais, cada componente contribui para sua confiabilidade a longo prazo. Al\u00e9m disso, a combina\u00e7\u00e3o de flexibilidade, resist\u00eancia t\u00e9rmica e estabilidade qu\u00edmica faz do PEX a melhor escolha para sistemas hidr\u00e1ulicos modernos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c0 medida que a tecnologia continua a evoluir, os materiais e m\u00e9todos utilizados na produ\u00e7\u00e3o de tubos PEX tamb\u00e9m evoluem. No entanto, os princ\u00edpios fundamentais de durabilidade, seguran\u00e7a e efici\u00eancia permanecer\u00e3o essenciais para o seu sucesso cont\u00ednuo. Seja voc\u00ea construtor, empreiteiro ou propriet\u00e1rio, um profundo conhecimento dos materiais utilizados em tubos PEX flex\u00edveis permite escolhas mais inteligentes e melhores solu\u00e7\u00f5es de encanamento.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-ifan-international-standard\">Norma internacional IFAN<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Os produtos IFAN atendem a diversas normas internacionalmente reconhecidas para garantir qualidade e confiabilidade. Essas normas incluem ISO 15875, GB\/T 18992, DIN 16892, ASTM F877, ASTM F2788, BS 7291, BS EN ISO 15875 e CSA B137. A ades\u00e3o a essas certifica\u00e7\u00f5es demonstra o compromisso da IFAN em atender aos requisitos globais de desempenho, seguran\u00e7a e durabilidade em sistemas de tubula\u00e7\u00e3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-contact\">Contato<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A IFAN \u00e9 uma fabricante profissional com 30 anos de experi\u00eancia, dedicada \u00e0 produ\u00e7\u00e3o de tubos, conex\u00f5es e v\u00e1lvulas de pl\u00e1stico de alta qualidade. Nossos produtos incluem v\u00e1lvulas de lat\u00e3o, v\u00e1lvulas de PPR, al\u00e9m de diversos tubos e conex\u00f5es para atender \u00e0s diferentes necessidades dos clientes. Seja para tubos de encanamento e drenagem ou v\u00e1lvulas, a IFAN oferece uma gama diversificada de produtos de alta qualidade e custo-benef\u00edcio para apoiar seus projetos. Abaixo, voc\u00ea encontra nossos dados de contato.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Responderemos seu e-mail ou fax em at\u00e9 24 horas.<br>Voc\u00ea pode nos ligar a qualquer momento caso tenha alguma d\u00favida sobre nossa produ\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Para mais informa\u00e7\u00f5es, visite nosso site&nbsp;<a href=\"https:\/\/ifanplus.com\/pt\">https:\/\/www.ifanplus.com\/<\/a><br>Por favor, envie um e-mail para:&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 modern plumbing systems, flexible PEX pipe has emerged as a widely adopted solution due to its versatility, ease of installation, and durability. However, to fully appreciate its advantages, it is essential to understand the material composition that forms the backbone of this innovative piping solution. In this article, we will explore the key materials [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":22568,"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":[620,626,15,625,340],"class_list":["post-22566","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-brass-pex-fittings","tag-flexible-pex-pipe","tag-pex-fittings","tag-pex-pipe-connector","tag-pex-pipe-fitting"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v27.7) - 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