{"id":4163,"date":"2026-02-21T09:00:00","date_gmt":"2026-02-21T09:00:00","guid":{"rendered":"https:\/\/www.desopipe.com\/?p=4163"},"modified":"2026-03-06T06:46:26","modified_gmt":"2026-03-06T06:46:26","slug":"ppr-ball-valve-sealing-mechanism-explained","status":"publish","type":"post","link":"https:\/\/www.desopipe.com\/pt\/blog\/ppr-valve\/ppr-ball-valve-sealing-mechanism-explained\/","title":{"rendered":"Mecanismos de Veda\u00e7\u00e3o: A Diferen\u00e7a entre Veda\u00e7\u00f5es de O-Ring e de PTFE em V\u00e1lvulas de Esfera de PPR"},"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\/ppr-ball-valve-sealing-mechanism-explained\/#Why_Sealing_Design_Matters\" >Por que o design da veda\u00e7\u00e3o \u00e9 importante<\/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\/ppr-ball-valve-sealing-mechanism-explained\/#O-Ring_Sealing_Explained\" >Explica\u00e7\u00e3o da veda\u00e7\u00e3o com an\u00e9is de borracha<\/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\/ppr-ball-valve-sealing-mechanism-explained\/#PTFE_Teflon_Sealing_Explained\" >Explica\u00e7\u00e3o sobre a veda\u00e7\u00e3o em PTFE (Teflon)<\/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\/ppr-ball-valve-sealing-mechanism-explained\/#Performance_Comparison_O-Ring_vs_PTFE\" >Compara\u00e7\u00e3o de desempenho: O-ring vs PTFE<\/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\/ppr-ball-valve-sealing-mechanism-explained\/#DESO_Valve_Structure_Choices\" >Op\u00e7\u00f5es de estrutura de v\u00e1lvula 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\/ppr-ball-valve-sealing-mechanism-explained\/#Conclusion\" >Conclus\u00e3o<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">Em instala\u00e7\u00f5es hidr\u00e1ulicas residenciais e comerciais, <a href=\"https:\/\/www.desopipe.com\/pt\/product-category\/ppr-valve\/ppr-ball-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>V\u00e1lvulas de esfera PPR<\/strong><\/a> Servem como guardi\u00e3s para gerenciar e isolar o fluxo de \u00e1gua. Essas v\u00e1lvulas regulam a press\u00e3o, permitem paradas para manuten\u00e7\u00e3o e evitam o refluxo em sistemas de \u00e1gua pot\u00e1vel.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u00e1lvulas de esfera PPR<\/strong> S\u00e3o vitais em instala\u00e7\u00f5es hidr\u00e1ulicas. Essas v\u00e1lvulas devem atender a padr\u00f5es de qualidade rigorosos, como a ISO 15874 (Especifica\u00e7\u00e3o para sistemas de tubula\u00e7\u00e3o de PP para instala\u00e7\u00f5es de \u00e1gua quente e fria), para garantir o desempenho at\u00e9 16 bar (232 psi).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A maioria dos instaladores dedica tempo a garantir que <strong>uni\u00e3o de v\u00e1lvula de esfera<\/strong> e <strong><a href=\"https:\/\/www.desopipe.com\/pt\/blog\/ppr-fitting\/threaded-vs-socket-ppr-couplings-key-differences\/\" target=\"_blank\" rel=\"noreferrer noopener\">Soquete da v\u00e1lvula PPR<\/a><\/strong> As conex\u00f5es s\u00e3o firmes. Eles tamb\u00e9m garantem que as conex\u00f5es estejam firmemente fixadas ao tubo. No entanto, s\u00e3o as veda\u00e7\u00f5es ocultas dentro da v\u00e1lvula que determinam o desempenho a longo prazo.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Existem dois tipos principais de veda\u00e7\u00e3o que dominam o mercado: an\u00e9is de veda\u00e7\u00e3o elastom\u00e9ricos e sedes de fluoropol\u00edmero PTFE. Na DESO, os engenheiros de tubula\u00e7\u00e3o montam cada v\u00e1lvula com componentes de veda\u00e7\u00e3o precisamente combinados. Isso ajuda a eliminar vazamentos sob press\u00f5es de trabalho de at\u00e9 16 bar (232 psi).&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Sealing_Design_Matters\"><\/span>Por que o design da veda\u00e7\u00e3o \u00e9 importante<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Quando <strong><a href=\"https:\/\/www.desopipe.com\/pt\/blog\/manufacturer\/buyers-guide-to-high-quality-ppr-pipe-material\/\" target=\"_blank\" rel=\"noreferrer noopener\">Materiais PPR<\/a><\/strong> Em caso de falha na veda\u00e7\u00e3o, a \u00e1gua flui pela superf\u00edcie da esfera. Isso reduz a press\u00e3o do sistema em 0,2 a 0,5 bar por v\u00e1lvula defeituosa em instala\u00e7\u00f5es em s\u00e9rie.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Essa queda de press\u00e3o for\u00e7a as bombas a trabalharem mais, aumentando o consumo de energia em 8 a 121 toneladas em edif\u00edcios de v\u00e1rios andares. Vazamentos lentos tamb\u00e9m causam danos por \u00e1gua e custam, em m\u00e9dia, de 1 a 10 toneladas em reparos, de 2.500 a 7.000 d\u00f3lares, segundo dados do setor de seguros.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O material de veda\u00e7\u00e3o tamb\u00e9m determina a durabilidade das v\u00e1lvulas em ambientes quimicamente agressivos. O tratamento de \u00e1gua municipal apresenta concentra\u00e7\u00f5es de cloro de 0,5 a 2,0 mg\/L. Isso causa a degrada\u00e7\u00e3o de certos elast\u00f4meros em 5 a 7 anos.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Em edif\u00edcios com recircula\u00e7\u00e3o de \u00e1gua quente, a varia\u00e7\u00e3o de temperatura pode levar \u00e0 fadiga do material. Se a veda\u00e7\u00e3o e a esfera se friccionarem com muita for\u00e7a, a v\u00e1lvula ficar\u00e1 muito r\u00edgida. Para evitar falhas, a alavanca deve ser projetada para suportar uma for\u00e7a na faixa de 15 a 20 Nm.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"O-Ring_Sealing_Explained\"><\/span>Explica\u00e7\u00e3o da veda\u00e7\u00e3o com an\u00e9is de borracha<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"812\" height=\"489\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-1.webp\" alt=\"An\u00e9is de veda\u00e7\u00e3o de borracha EPDM em uma v\u00e1lvula de esfera PPR\" class=\"wp-image-4166\" style=\"width:500px\" srcset=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-1.webp 812w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-1-500x301.webp 500w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-1-300x181.webp 300w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-1-768x463.webp 768w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-1-18x12.webp 18w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-1-125x75.webp 125w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-1-480x289.webp 480w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-1-800x482.webp 800w\" sizes=\"auto, (max-width:767px) 480px, (max-width:812px) 100vw, 812px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Os an\u00e9is de veda\u00e7\u00e3o de borracha (geralmente feitos de EPDM ou nitrilo) s\u00e3o a escolha padr\u00e3o para a maioria das instala\u00e7\u00f5es hidr\u00e1ulicas residenciais. Eles funcionam sendo &quot;comprimidos&quot; em um pequeno sulco dentro da v\u00e1lvula para criar uma veda\u00e7\u00e3o herm\u00e9tica.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>O Poder da Press\u00e3o:<\/strong> Ao montar a v\u00e1lvula, o anel de veda\u00e7\u00e3o \u00e9 comprimido em 15 a 25% de sua espessura. Isso cria uma veda\u00e7\u00e3o t\u00e3o forte que sua for\u00e7a de contato \u00e9 o dobro da press\u00e3o da \u00e1gua \u2014 por exemplo, 6 bar de press\u00e3o da \u00e1gua criam 12 bar de for\u00e7a de veda\u00e7\u00e3o.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Confi\u00e1vel para resid\u00eancias: <\/strong>Essas veda\u00e7\u00f5es funcionam em temperaturas de -40 \u00b0C a +120 \u00b0C e come\u00e7am a vedar a press\u00f5es muito baixas (0,5 bar). Como cada veda\u00e7\u00e3o custa apenas de $0,15 a $0,30 para ser fabricada, o pre\u00e7o total da v\u00e1lvula permanece acess\u00edvel para projetos residenciais.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>O fator de &quot;recupera\u00e7\u00e3o&quot;:<\/strong> Ap\u00f3s 50.000 ciclos, um anel de veda\u00e7\u00e3o pode perder de sua forma original. Essa &quot;deforma\u00e7\u00e3o permanente&quot; aumenta a probabilidade de vazamentos ao longo do tempo.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Limites qu\u00edmicos e t\u00e9rmicos:<\/strong> Produtos qu\u00edmicos agressivos, como cloro ou anticongelante, podem fazer a borracha inchar em 5\u20138%, eventualmente deslocando-a. Embora suportem bem \u00e1gua quente, seu uso cont\u00ednuo \u00e9 limitado a 95 \u00b0C, portanto, n\u00e3o s\u00e3o resistentes o suficiente para vapor industrial de alta temperatura.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PTFE_Teflon_Sealing_Explained\"><\/span>Explica\u00e7\u00e3o sobre a veda\u00e7\u00e3o em PTFE (Teflon)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O PTFE (tamb\u00e9m conhecido como Teflon) funciona de maneira diferente da borracha. Em vez de ser um anel flex\u00edvel que \u00e9 comprimido em uma ranhura, ele atua como um &quot;ber\u00e7o&quot; liso e resistente para a esfera da v\u00e1lvula.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Funcionamento extremamente suave: <\/strong>O PTFE \u00e9 incrivelmente escorregadio, com um n\u00edvel de fric\u00e7\u00e3o de 0,05 a 0,10 \u2014 quase cinco vezes mais suave do que o da borracha, que varia de 0,30 a 0,50. Isso significa que uma v\u00e1lvula de 1 polegada precisa de apenas 3 a 6 Nm de for\u00e7a para girar, o que representa um esfor\u00e7o 60% menor do que o de uma v\u00e1lvula com anel de veda\u00e7\u00e3o.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Resist\u00eancia extrema:<\/strong> Ele pode lidar com praticamente qualquer subst\u00e2ncia qu\u00edmica (de pH 1 a 14) e resiste a temperaturas que variam de -200\u00b0C (congelante) a +260\u00b0C (escaldante).<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Constru\u00eddo para durar d\u00e9cadas:<\/strong> Em \u00e1guas duras, minerais como o c\u00e1lcio se acumulam na borracha em apenas 18 a 24 meses, mas o PTFE permanece limpo por mais de 10 anos. Isso \u00e9 uma grande vantagem para grandes edif\u00edcios, onde drenar os canos para reparos \u00e9 um grande transtorno.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Engenharia de Precis\u00e3o: <\/strong>Esses assentos custam cerca de $1,20 a $2,50 a mais por unidade porque a esfera interna precisa ser polida at\u00e9 obter um acabamento espelhado (Ra 0,4 \u03bcm). Enquanto a borracha pode se deformar para disfar\u00e7ar pequenos arranh\u00f5es, o PTFE exige que a esfera seja duas vezes mais lisa para garantir uma veda\u00e7\u00e3o perfeita.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Performance_Comparison_O-Ring_vs_PTFE\"><\/span>Compara\u00e7\u00e3o de desempenho: O-ring vs PTFE<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"935\" height=\"501\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-2.webp\" alt=\"Materiais PPR usados para an\u00e9is de veda\u00e7\u00e3o comprimidos e PTFE polido\" class=\"wp-image-4167\" style=\"width:500px\" srcset=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-2.webp 935w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-2-500x268.webp 500w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-2-300x161.webp 300w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-2-768x412.webp 768w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-2-18x10.webp 18w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-2-140x75.webp 140w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-2-480x257.webp 480w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Sealing-Mechanisms-2-800x429.webp 800w\" sizes=\"auto, (max-width:767px) 480px, (max-width:935px) 100vw, 935px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Fator de desempenho<\/strong><\/td><td><strong>Anel de veda\u00e7\u00e3o (EPDM\/NBR)<\/strong><\/td><td><strong>Veda\u00e7\u00e3o de PTFE<\/strong><\/td><\/tr><tr><td>Faixa de temperatura<\/td><td>-40\u00b0C a +95\u00b0C<\/td><td>-200\u00b0C a +260\u00b0C<\/td><\/tr><tr><td>Resist\u00eancia qu\u00edmica<\/td><td>Moderado (pH 6\u20139)<\/td><td>Excelente (pH 1\u201314)<\/td><\/tr><tr><td>Torque de opera\u00e7\u00e3o (DN25)<\/td><td>10\u201314 Nm<\/td><td>3\u20136 Nm<\/td><\/tr><tr><td>Vida \u00fatil (ciclos)<\/td><td>30.000\u201350.000<\/td><td>100,000+<\/td><\/tr><tr><td>Resist\u00eancia \u00e0 incrusta\u00e7\u00e3o mineral<\/td><td>Baixo<\/td><td>Alto<\/td><\/tr><tr><td>Custo inicial<\/td><td>$0,15\u2013$0,30<\/td><td>$1.20\u2013$2.50<\/td><\/tr><tr><td>Classifica\u00e7\u00e3o de press\u00e3o<\/td><td>At\u00e9 16 bar<\/td><td>At\u00e9 25 bar<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"DESO_Valve_Structure_Choices\"><\/span>Op\u00e7\u00f5es de estrutura de v\u00e1lvula DESO<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A ferramenta certa para o trabalho:<\/strong> Para tubula\u00e7\u00f5es de \u00e1gua fria padr\u00e3o (sob <strong>6 barras<\/strong> (de press\u00e3o), a DESO utiliza veda\u00e7\u00f5es de borracha EPDM. Estas s\u00e3o econ\u00f4micas e feitas para durar. <strong>15 anos<\/strong>. Para sistemas de \u00e1gua quente que funcionam em alta press\u00e3o (<strong>10\u201316 barras<\/strong>) e calor intenso (<strong>85\u201395\u00b0C<\/strong>), a DESO passa a usar sedes de PTFE para suportar o estresse adicional.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Componentes com acabamento espelhado:<\/strong> Para evitar o desgaste das veda\u00e7\u00f5es, a DESO utiliza esferas de lat\u00e3o polidas at\u00e9 obter um acabamento extremamente liso (<strong>0,3 \u03bcm<\/strong>). Estes est\u00e3o alojados em ambientes com press\u00e3o estabilizada. <a href=\"https:\/\/www.desopipe.com\/pt\/leading-ppr-fitting-manufacturer-for-global-piping-systems\/\" target=\"_blank\" rel=\"noreferrer noopener\">Resina PPR Hyosung<\/a>, que permanece est\u00e1vel durante as mudan\u00e7as de temperatura, de modo que a v\u00e1lvula n\u00e3o &quot;respire&quot; ou se deforme e cause vazamentos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tecnologia Smart Spring:<\/strong> Dentro das v\u00e1lvulas de PTFE premium da DESO, molas de a\u00e7o inoxid\u00e1vel aplicam uma for\u00e7a constante de <strong>150\u2013200 N<\/strong>. Essa press\u00e3o se ajusta automaticamente para o min\u00fasculo <strong>0,01\u20130,02 mm<\/strong> expans\u00e3o que ocorre quando o metal e o pl\u00e1stico aquecem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u201cConfigure e esque\u00e7a\u201d:<\/strong> Como esses modelos n\u00e3o exigem manuten\u00e7\u00e3o, os profissionais os escolhem para trabalhos &quot;ocultos&quot; \u2014 como tubula\u00e7\u00f5es enterradas em lajes de concreto ou atr\u00e1s de azulejos de banheiro \u2014 onde voc\u00ea nunca quer ter que escav\u00e1-las para fazer um reparo.<\/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\">Escolhendo o certo <strong>V\u00e1lvula de esfera PPR<\/strong> Depende do seu or\u00e7amento e das necessidades do seu sistema de encanamento. No entanto, isso n\u00e3o significa que voc\u00ea deva sacrificar o or\u00e7amento em prol da seguran\u00e7a.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As v\u00e1lvulas padr\u00e3o utilizam an\u00e9is de veda\u00e7\u00e3o de borracha, que criam uma veda\u00e7\u00e3o herm\u00e9tica duas vezes mais resistente que a pr\u00f3pria press\u00e3o da \u00e1gua. No entanto, ap\u00f3s 50.000 utiliza\u00e7\u00f5es, esses an\u00e9is podem perder de 10 a 15% da sua flexibilidade. Produtos qu\u00edmicos agressivos e temperaturas acima de 95 \u00b0C podem causar a sua expans\u00e3o ou degrada\u00e7\u00e3o. Aplica\u00e7\u00f5es dom\u00e9sticas padr\u00e3o com \u00e1gua limpa e v\u00e1lvulas de f\u00e1cil acesso utilizam an\u00e9is de veda\u00e7\u00e3o com durabilidade de at\u00e9 15 anos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Para ambientes industriais e com \u00e1gua dura, recomenda-se o uso de veda\u00e7\u00f5es de PTFE (Teflon). O PTFE \u00e9 cinco vezes mais liso que a borracha, o que reduz o esfor\u00e7o necess\u00e1rio para girar a v\u00e1lvula. Ele suporta temperaturas de -200 \u00b0C a +260 \u00b0C. Na Deso, aprimoramos nossa qualidade premium. <strong>V\u00e1lvula de esfera PPR<\/strong>Com esferas de lat\u00e3o polido e molas internas que aplicam uma press\u00e3o de 150 a 200 N. Isso ajuda a evitar vazamentos durante mudan\u00e7as de temperatura.<\/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>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>In residential and commercial plumbing installations, PPR ball valves serve as the gatekeeper for managing and isolating water flow.&nbsp; These valves regulate pressure, enable maintenance shutdowns,<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":4241,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58],"tags":[],"class_list":["post-4163","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 Ball Valve Seals: O-Ring vs PTFE Explained | DESO Group<\/title>\n<meta name=\"description\" content=\"Discover the technical differences between O-ring and PTFE seals in a PPR ball valve. 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