{"id":4144,"date":"2026-02-14T09:00:00","date_gmt":"2026-02-14T09:00:00","guid":{"rendered":"https:\/\/www.desopipe.com\/?p=4144"},"modified":"2026-03-06T08:02:51","modified_gmt":"2026-03-06T08:02:51","slug":"pn25-ppr-valves-for-solar-heating","status":"publish","type":"post","link":"https:\/\/www.desopipe.com\/pt\/blog\/ppr-valve\/pn25-ppr-valves-for-solar-heating\/","title":{"rendered":"Solu\u00e7\u00f5es de Alta Press\u00e3o: Quando Especificar V\u00e1lvulas PPR PN25 em Sistemas de Aquecimento Solar"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabela de conte\u00fado\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Alternar<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.desopipe.com\/pt\/blog\/ppr-valve\/pn25-ppr-valves-for-solar-heating\/#Pressure_Temperature_in_Solar_Heating_Systems\" >Press\u00e3o e temperatura em sistemas de aquecimento solar<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.desopipe.com\/pt\/blog\/ppr-valve\/pn25-ppr-valves-for-solar-heating\/#What_is_the_Difference_Between_a_PN20_and_a_PN_25_Valve\" >Qual a diferen\u00e7a entre uma v\u00e1lvula PN20 e uma v\u00e1lvula PN25?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.desopipe.com\/pt\/blog\/ppr-valve\/pn25-ppr-valves-for-solar-heating\/#Failure_Risks_of_Under-Specification\" >Riscos de falha por subespecifica\u00e7\u00e3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.desopipe.com\/pt\/blog\/ppr-valve\/pn25-ppr-valves-for-solar-heating\/#Selecting_Valves_for_Long-Term_Stability\" >Selecionando v\u00e1lvulas para estabilidade a longo prazo<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.desopipe.com\/pt\/blog\/ppr-valve\/pn25-ppr-valves-for-solar-heating\/#DESO_High-Pressure_Valve_Solutions\" >Solu\u00e7\u00f5es de v\u00e1lvulas de alta press\u00e3o da DESO<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.desopipe.com\/pt\/blog\/ppr-valve\/pn25-ppr-valves-for-solar-heating\/#Conclusion\" >Conclus\u00e3o<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">Na ind\u00fastria moderna de instala\u00e7\u00f5es hidr\u00e1ulicas, os sistemas PPR s\u00e3o o material padr\u00e3o para encanamentos de \u00e1gua quente e fria. Esse padr\u00e3o deve ser respaldado por conformidade internacional, incluindo a ISO 9001 para gest\u00e3o da qualidade e <a href=\"https:\/\/www.desopipe.com\/pt\/certificate\/\" target=\"_blank\" rel=\"noreferrer noopener\">Normas DIN 8077\/8078<\/a>. Isso garante que cada cano e <strong>V\u00e1lvula PPR<\/strong> Atende \u00e0s especifica\u00e7\u00f5es de resist\u00eancia \u00e0 press\u00e3o e estabilidade t\u00e9rmica a longo prazo.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">No entanto, nem todos os tubos de PPR (copol\u00edmero aleat\u00f3rio de polipropileno) suportam altas temperaturas. Por isso, \u00e9 necess\u00e1rio verificar a classifica\u00e7\u00e3o &quot;PN&quot; para determinar se o tubo ou a v\u00e1lvula suporta a faixa de temperaturas desejada.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">UM <strong>V\u00e1lvula PN 25<\/strong> A v\u00e1lvula PN16 \u00e9 a v\u00e1lvula &quot;pesada&quot; e suporta uma press\u00e3o de at\u00e9 25 bar (aproximadamente 362 psi). Voc\u00ea pode usar uma v\u00e1lvula padr\u00e3o PN16 ou PN20 para uma pia de cozinha comum. No entanto, se o sistema hidr\u00e1ulico estiver sob forte press\u00e3o, voc\u00ea precisar\u00e1 de v\u00e1lvulas com classifica\u00e7\u00e3o PN25. Neste artigo, voc\u00ea aprender\u00e1 como selecionar a v\u00e1lvula correta para o seu sistema de aquecimento solar.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pressure_Temperature_in_Solar_Heating_Systems\"><\/span>Press\u00e3o e temperatura em sistemas de aquecimento solar<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Os coletores solares s\u00e3o dispositivos instalados em sistemas de aquecimento solar. Eles captam e coletam a luz solar, convertendo-a em energia utiliz\u00e1vel. Geralmente s\u00e3o instalados em pr\u00e9dios residenciais altos e atingem temperaturas m\u00e1ximas de 80\u00b0C (176\u00b0F). Portanto, um <strong>V\u00e1lvula de aquecimento PPR<\/strong> Em um circuito solar, \u00e9 necess\u00e1rio gerenciar um fluido que oscila entre a temperatura ambiente e pontos pr\u00f3ximos ao de ebuli\u00e7\u00e3o.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Durante cortes de energia ou falhas nas bombas em dias extremamente quentes, o sistema pode entrar em estado de estagna\u00e7\u00e3o. Isso pode causar um aumento r\u00e1pido da press\u00e3o interna devido \u00e0 expans\u00e3o do fluido. Um padr\u00e3o <strong>V\u00e1lvula PPR<\/strong> pode se desgastar se o <a href=\"https:\/\/www.desopipe.com\/pt\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/\" target=\"_blank\" rel=\"noreferrer noopener\">Classifica\u00e7\u00e3o PN<\/a> N\u00e3o consegue lidar com os picos de expans\u00e3o t\u00e9rmica. Al\u00e9m disso, a capacidade de suportar press\u00e3o do PPR diminui com o aumento da temperatura de opera\u00e7\u00e3o.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Assim, selecionar um <strong>V\u00e1lvula PPR de alta temperatura<\/strong> Com a classifica\u00e7\u00e3o PN correta, \u00e9 poss\u00edvel manter uma margem de seguran\u00e7a a 70 \u00b0C ou 95 \u00b0C. Nesse caso, uma v\u00e1lvula de 25 bar \u00e9 a escolha padr\u00e3o para o seu sistema de aquecimento solar.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_the_Difference_Between_a_PN20_and_a_PN_25_Valve\"><\/span>Qual a diferen\u00e7a entre uma v\u00e1lvula PN20 e uma v\u00e1lvula PN25?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A principal diferen\u00e7a entre as classifica\u00e7\u00f5es de v\u00e1lvulas PN25 e PN20 reside em <a href=\"https:\/\/www.desopipe.com\/pt\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/\" target=\"_blank\" rel=\"noreferrer noopener\">espessura da parede<\/a> e grau espec\u00edfico de mat\u00e9rias-primas. Um PN20 <strong>V\u00e1lvula PPR<\/strong> \u00c9 projetado para uma press\u00e3o normal de 2,0 MPa (20 bar) a 20\u00b0C. Por outro lado, uma unidade com classifica\u00e7\u00e3o de 25 bar \u00e9 projetada para 2,5 MPa (25 bar).&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Para aplica\u00e7\u00f5es solares, um PN 25<strong> <\/strong>Proporciona paredes estruturais mais espessas. Essas paredes resistem \u00e0 deforma\u00e7\u00e3o lenta do pl\u00e1stico sob calor e tens\u00e3o constantes. Mesmo quando o sistema opera nos limites t\u00e9rmicos mais elevados, <strong>V\u00e1lvula PPR de alta temperatura<\/strong> permanece estanque nas juntas de fus\u00e3o. Isso se deve \u00e0 densidade extra do material da v\u00e1lvula.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A seguir, encontra-se uma tabela que descreve as diferen\u00e7as e aplica\u00e7\u00f5es:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Cen\u00e1rio de aplica\u00e7\u00e3o<\/strong><\/td><td><strong>Fatores t\u00edpicos de estresse<\/strong><\/td><td><strong>Desempenho da v\u00e1lvula PN20 PPR<\/strong><\/td><td><strong>Desempenho da v\u00e1lvula PN25 PPR (alta press\u00e3o)<\/strong><\/td><\/tr><tr><td>Torres residenciais de grande altura<\/td><td>Press\u00e3o est\u00e1tica da coluna de \u00e1gua + Golpe de ar\u00edete (Sobretens\u00f5es)<\/td><td>Opera pr\u00f3ximo aos limites estruturais; propenso \u00e0 fadiga devido a choques na partida da bomba.<\/td><td>Proporciona &quot;espa\u00e7o livre&quot; mec\u00e2nico para absorver picos de press\u00e3o sem tensionar a parede.<\/td><\/tr><tr><td>Estagna\u00e7\u00e3o solar comercial<\/td><td>Calor extremo (acima de 90 \u00b0C) + Expans\u00e3o de fluidos<\/td><td>Ocorre uma significativa &quot;redu\u00e7\u00e3o de desempenho&quot;; o material amolece e pode falhar sob a press\u00e3o do vapor.<\/td><td>Mant\u00e9m uma capacidade de press\u00e3o mais elevada em temperaturas m\u00e1ximas devido ao aumento da densidade da parede.<\/td><\/tr><tr><td>Aquecimento de Processos Industriais<\/td><td>Carga t\u00e9rmica constante (acima de 75 \u00b0C) + opera\u00e7\u00e3o 24 horas por dia, 7 dias por semana<\/td><td>Suscet\u00edvel \u00e0 ruptura por flu\u00eancia; as mol\u00e9culas se &quot;esticam&quot; com o tempo, causando vazamentos.<\/td><td>A camada SDR (Standard Dimension Ratio) mais espessa resiste \u00e0 deforma\u00e7\u00e3o molecular, garantindo estabilidade a longo prazo.<\/td><\/tr><tr><td>Esta\u00e7\u00f5es de bombeamento para aquecimento urbano<\/td><td>Vibra\u00e7\u00e3o mec\u00e2nica de alta frequ\u00eancia<\/td><td>Paredes mais finas podem causar deforma\u00e7\u00e3o da sede da v\u00e1lvula e vazamentos internos de bypass.<\/td><td>A carroceria refor\u00e7ada atua como um amortecedor de vibra\u00e7\u00f5es, mantendo o alinhamento interno perfeito.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Failure_Risks_of_Under-Specification\"><\/span>Riscos de falha por subespecifica\u00e7\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ao selecionar v\u00e1lvulas para um circuito solar de alta press\u00e3o, escolha a v\u00e1lvula recomendada com a classifica\u00e7\u00e3o PN correta. O uso de uma v\u00e1lvula com classifica\u00e7\u00e3o inferior apresenta diversos riscos industriais, tais como:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ruptura Rastejante:<\/strong> Fissuras microsc\u00f3picas aparecer\u00e3o nas v\u00e1lvulas, reduzindo a vida \u00fatil do material. Isso \u00e9 causado pela exposi\u00e7\u00e3o prolongada a altas temperaturas.&nbsp;<\/li>\n\n\n\n<li><strong>Fraqueza articular:<\/strong> A exposi\u00e7\u00e3o prolongada ao calor tamb\u00e9m causa expans\u00e3o t\u00e9rmica. Quando esse ciclo se repete, exerce uma press\u00e3o imensa na liga\u00e7\u00e3o por fus\u00e3o entre o tubo e a parede. <strong>V\u00e1lvula de aquecimento PPR.&nbsp;<\/strong><\/li>\n\n\n\n<li><strong>Tempo de inatividade do sistema: <\/strong>A perda de fluido e os danos ao coletor s\u00e3o frequentemente causados por v\u00e1lvulas subdimensionadas. Esses s\u00e3o geralmente os pontos de falha mais comuns.&nbsp;<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Os engenheiros podem prever uma margem de seguran\u00e7a para esses problemas comuns do setor. Especificar uma v\u00e1lvula de 25 bar.<strong> <\/strong>garante que o sistema sobreviva por mais de 25 anos de servi\u00e7o.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Selecting_Valves_for_Long-Term_Stability\"><\/span>Selecionando v\u00e1lvulas para estabilidade a longo prazo<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Os engenheiros devem verificar a conformidade com normas internacionais como DIN 8077\/8078 ou ISO 15874. Este \u00e9 um requisito rigoroso na escolha de um <strong>V\u00e1lvula de aquecimento PPR.<\/strong> Essas normas definem as especifica\u00e7\u00f5es necess\u00e1rias, como dimens\u00f5es e testes de press\u00e3o.&nbsp;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">UM <strong>V\u00e1lvula PPR de alta temperatura<\/strong> deve lidar com o espec\u00edfico <a href=\"https:\/\/www.desopipe.com\/pt\/blog\/ppr-pipe\/ppr-pipe-sizes-and-specifications-guide-for-buyer\/\" target=\"_blank\" rel=\"noreferrer noopener\">SDR (Rela\u00e7\u00e3o Dimensional Padr\u00e3o)<\/a> do sistema de tubula\u00e7\u00e3o. Um sistema est\u00e1vel <strong>V\u00e1lvula PPR<\/strong> Dever\u00e1 tamb\u00e9m apresentar insertos de liga de lat\u00e3o CW617N para conex\u00f5es roscadas. Isso evita a corros\u00e3o galv\u00e2nica e garante um encaixe mec\u00e2nico seguro com coletores met\u00e1licos.&nbsp;<\/p>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  \n  <title>Destaque do produto Hero<\/title>\n  <style>\n    .hero-card {\n      display: flex;\n      flex-wrap: wrap;\n      align-items: center;\n      background: #f7f8fa;\n      border-radius: 16px;\n      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);\n      padding: 24px;\n      max-width: 900px;\n      margin: 40px auto;\n      font-family: Arial, sans-serif;\n      text-decoration: none;\n      color: inherit;\n font-family: 'Poppins';\n    }\n\n    .hero-image {\n      width: 220px;\n      height: auto;\n      border-radius: 12px;\n      object-fit: cover;\n      flex-shrink: 0;\n    }\n\n    .hero-content {\n      padding-left: 24px;\n      flex: 1;\n      min-width: 260px;\n    }\n\n    .hero-title {\n      font-size: 1.6rem;\n      font-weight: bold;\n      margin-bottom: 12px;\n      color: #222;\n      font-family: 'Poppins',\n    }\n\n    .hero-description {\n      font-size: 1rem;\n      color: #555;\n      margin-bottom: 18px;\n    }\n\n    .hero-link {\n      display: inline-block;\n      padding: 10px 20px;\n      background-color: #0066cc;\n      color: #fff;\n      text-decoration: none;\n      border-radius: 8px;\n      font-weight: bold;\n      transition: background 0.2s ease-in-out;\n    }\n\n    .hero-link:hover {\n      background-color: #004c99;\n    }\n\n    @media (max-width: 640px) {\n      .hero-card {\n        flex-direction: column;\n        text-align: center;\n      }\n\n      .hero-content {\n        padding-left: 0;\n        padding-top: 20px;\n      }\n\n      .hero-image {\n        width: 100%;\n        max-width: 280px;\n      }\n    }\n  <\/style>\n<\/head>\n<body>\n\n<a class=\"hero-card\" href=\"https:\/\/www.desopipe.com\/pt\/product\/plastic-ball-valve-with-brass-core-ii\/\" target=\"_blank\">\n  <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/03\/Plastic-ball-valve-with-brass-core-II.jpg\" alt=\"\">\n  <div class=\"hero-content\">\n    <div class=\"hero-title\">V\u00e1lvula de esfera de pl\u00e1stico com n\u00facleo de lat\u00e3o II<\/div>\n    <div class=\"hero-description\">\nFaixa de tamanho: DN20\u2013DN32 (20 mm\u201363 mm).<br>\n\nClassifica\u00e7\u00e3o de press\u00e3o: PN25 (at\u00e9 2,5 MPa).\n\n <\/div>\n    <span class=\"hero-link\">Ver produto<\/span>\n  <\/div>\n<\/a>\n\n<\/body>\n<\/html>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"DESO_High-Pressure_Valve_Solutions\"><\/span>Solu\u00e7\u00f5es de v\u00e1lvulas de alta press\u00e3o da DESO<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A DESO, uma das fabricantes de tubos PPR, \u00e9 especializada na fabrica\u00e7\u00e3o de tubos refor\u00e7ados. <strong>V\u00e1lvula PN 25<\/strong> unidades. Nossas <strong>V\u00e1lvula PPR de alta temperatura<\/strong> Esta linha de produtos \u00e9 especificamente projetada para aplica\u00e7\u00f5es de energia solar t\u00e9rmica. Utiliza motores Borealis ou Hyosung, modelo 100%. <a href=\"https:\/\/www.desopipe.com\/pt\/blog\/manufacturer\/buyers-guide-to-high-quality-ppr-pipe-material\/\" target=\"_blank\" rel=\"noreferrer noopener\">mat\u00e9rias-primas<\/a> para garantir a estabilidade qu\u00edmica.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O <strong>V\u00e1lvula de aquecimento PPR<\/strong> O sistema \u00e9 testado a 95 \u00b0C durante 1.000 horas. Isso comprova sua resist\u00eancia \u00e0 degrada\u00e7\u00e3o t\u00e9rmica, conforme a norma ISO 15874, cl\u00e1usula 11.2 (ou similar). Os instaladores visam fornecer aos clientes residenciais ou comerciais um sistema com capacidade para operar a 25 bar. Ao atender a esses requisitos, eliminam-se retrabalhos e chamadas de retorno.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclus\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Escolher um <strong>V\u00e1lvula PN 25<\/strong> \u00c9 uma medida proativa para garantir a seguran\u00e7a e a efici\u00eancia de um sistema de aquecimento solar. Os engenheiros devem especificar as v\u00e1lvulas corretas com base nos requisitos do sistema hidr\u00e1ulico. Embora seja um padr\u00e3o <strong>V\u00e1lvula PPR <\/strong>Embora uma v\u00e1lvula adequada possa ser suficiente para instala\u00e7\u00f5es hidr\u00e1ulicas padr\u00e3o, as exig\u00eancias t\u00e9rmicas de um sistema de aquecimento solar requerem uma v\u00e1lvula mais robusta. Ao instalar a v\u00e1lvula correta, voc\u00ea garante maior durabilidade. <strong>V\u00e1lvula de aquecimento PPR, <\/strong>Voc\u00ea pode ter certeza da seguran\u00e7a e efici\u00eancia do sistema, al\u00e9m de uma vida \u00fatil certificada de 25 anos.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/www.desopipe.com\/pt\/contact\/\" style=\"background-color:#0588a7\" target=\"_blank\" rel=\"noreferrer noopener\">Obtenha um or\u00e7amento gratuito<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>In the modern plumbing industry, PPR systems are the standard material for hot and cold water plumbing. This standard must be backed by international compliance, including<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":4245,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58],"tags":[],"class_list":["post-4144","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ppr-valve"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PPR Valve PN25 for High-Pressure Solar Heating | DESO Group<\/title>\n<meta name=\"description\" content=\"Learn why a high temperature PPR valve is required for solar heating and why a PN 25 valve is required to ensure thermal stability, creep rupture resistance, and a 25-year system service life.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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