{"id":6952,"date":"2026-09-01T09:30:00","date_gmt":"2026-09-01T01:30:00","guid":{"rendered":"https:\/\/www.onerovalve.com\/?p=6952"},"modified":"2026-09-02T09:14:46","modified_gmt":"2026-09-02T01:14:46","slug":"chemical-industry-ball-valve-material-selection","status":"publish","type":"post","link":"https:\/\/www.onerovalve.com\/pt\/blog\/application\/chemical-industry-ball-valve-material-selection\/","title":{"rendered":"V\u00e1lvulas de esfera qu\u00edmicas: Guia de sele\u00e7\u00e3o de materiais"},"content":{"rendered":"

Resposta r\u00e1pida:<\/h2>\n\n\n\n

Para o correto funcionamento da v\u00e1lvula de esfera qu\u00edmica, ela deve ser resistente ao fluido, suportar a temperatura e a press\u00e3o do sistema e ser capaz de manter a veda\u00e7\u00e3o durante dezenas de milhares de ciclos. Caso contr\u00e1rio, ocorreria corros\u00e3o, danificando as sedes e causando paradas inesperadas. O manual cont\u00e9m informa\u00e7\u00f5es sobre os principais requisitos para a sele\u00e7\u00e3o de materiais, os tipos de materiais que podem ser usados e o que deve ser verificado antes da compra junto ao fabricante. Desde 1986, a ONERO fabrica v\u00e1lvulas de esfera qu\u00edmicas. API 6D<\/a> v\u00e1lvulas de esfera certificadas em sua f\u00e1brica de 18.000 m\u00b2 na prov\u00edncia de Zhejiang, na China.<\/p>\n\n\n\n

Por que a sele\u00e7\u00e3o de materiais \u00e9 crucial em aplica\u00e7\u00f5es qu\u00edmicas?<\/h2>\n\n\n\n

A sele\u00e7\u00e3o inadequada de materiais levar\u00e1 a falhas, e estas n\u00e3o se limitar\u00e3o a uma v\u00e1lvula com funcionamento inadequado devido a vazamentos. O corpo, ao sofrer corros\u00e3o em contato com cloretos, forma cavidades e rompe a barreira de press\u00e3o. A superf\u00edcie de veda\u00e7\u00e3o, ao inchar em contato com solventes, deixa de manter o perfil de veda\u00e7\u00e3o. A haste, corro\u00edda em aplica\u00e7\u00f5es com g\u00e1s sulf\u00eddrico, n\u00e3o suportar\u00e1 o torque necess\u00e1rio.<\/p>\n\n\n\n

A compatibilidade qu\u00edmica da v\u00e1lvula de esfera \u00e9 mais uma quest\u00e3o de engenharia do que de compra. Deve ser baseada em informa\u00e7\u00f5es precisas sobre o fluido, sua concentra\u00e7\u00e3o, temperatura e press\u00e3o.<\/p>\n\n\n\n

\"Os<\/figure>\n\n\n\n

Quais fatores determinam o material ideal para uma v\u00e1lvula?<\/h2>\n\n\n\n

Composi\u00e7\u00e3o Qu\u00edmica<\/h3>\n\n\n\n

O teor de \u00edons cloreto \u00e9 o fator determinante em rela\u00e7\u00e3o ao a\u00e7o inoxid\u00e1vel. Acima de certos n\u00edveis, a corros\u00e3o por pites e por frestas representam modos de falha reais, independentemente da classe do material. Solventes org\u00e2nicos atacam a maioria das borrachas e elast\u00f4meros e exigem ligas espec\u00edficas. O \u00e1cido fluor\u00eddrico ataca todos os materiais e requer ligas especiais.<\/p>\n\n\n\n

Faixa de temperatura de opera\u00e7\u00e3o<\/h3>\n\n\n\n

As sedes de PTFE s\u00e3o utilizadas at\u00e9 200 graus Celsius. Acima dessa temperatura, \u00e9 necess\u00e1rio o uso de PTFE ou PEEK. Abaixo de temperaturas criog\u00eanicas, o material do corpo precisa passar por testes de impacto Charpy. Acima de 400 graus Celsius, somente sedes met\u00e1licas s\u00e3o utilizadas.<\/p>\n\n\n\n

Classe de press\u00e3o e classifica\u00e7\u00e3o do flange<\/h3>\n\n\n\n

Classes de alta press\u00e3o exigem materiais com alta resist\u00eancia ao escoamento. \u00c9 aplic\u00e1vel a todos os tipos de v\u00e1lvulas de esfera qu\u00edmicas da Classe 600 e superiores. A verifica\u00e7\u00e3o da conformidade do material com a classifica\u00e7\u00e3o de press\u00e3o e temperatura \u00e9 feita a partir de [inserir refer\u00eancia aqui]. Norma ASME B16.34<\/a> \u00c9 uma necessidade absoluta.<\/p>\n\n\n\n

Servi\u00e7o de Material Particulado e Polpa<\/h3>\n\n\n\n

A presen\u00e7a de part\u00edculas causa desgaste acelerado das sedes e esferas, um efeito que n\u00e3o pode ser determinado apenas com base nos dados de corros\u00e3o. O revestimento de carboneto de tungst\u00eanio nas esferas, com sua camada endurecida, proporciona uma vida \u00fatil significativamente maior em servi\u00e7os com fluidos abrasivos.<\/p>\n\n\n\n

Ciclos operacionais<\/h3>\n\n\n\n

Ciclos elevados levam a um desgaste mais r\u00e1pido dos assentos e do material de enchimento. As emiss\u00f5es fugitivas por ISO 15848-1 <\/a>As normas entram em vigor para aplica\u00e7\u00f5es de alto ciclo.<\/p>\n\n\n\n

Como se comparam os materiais dos corpos das v\u00e1lvulas de esfera?<\/h2>\n\n\n\n
Material<\/strong><\/td>Resist\u00eancia \u00e0 corros\u00e3o<\/strong><\/td>Custo<\/strong><\/td>Melhores Aplica\u00e7\u00f5es<\/strong><\/td><\/tr>
A\u00e7o carbono (A216 WCB)<\/td>Baixo (n\u00e3o indicado para meios corrosivos)<\/td>Baixo<\/td>Hidrocarbonetos n\u00e3o corrosivos<\/td><\/tr>
A\u00e7o inoxid\u00e1vel 316L (CF3M)<\/td>Bom, cloreto moderado<\/td>Moderado<\/td>Produtos qu\u00edmicos gerais, \u00e1cidos fracos<\/td><\/tr>
Duplex 2205<\/td>Cloreto elevado<\/td>Moderado a alto<\/td>\u00c1gua do mar, alto teor de cloreto, azeda<\/td><\/tr>
Super duplex 2507<\/td>Cloreto muito elevado e severo<\/td>Alto<\/td>Em alto mar, cloreto agressivo<\/td><\/tr>
Hastelloy C276<\/td>Excelente, oxidante e redutor.<\/td>Muito alto<\/td>\u00c1cido HF, \u00e1cidos mistos<\/td><\/tr>
Monel 400<\/td>Excelente, HF e \u00e1lcalis<\/td>Alto<\/td>\u00c1cido HF, \u00e1gua do mar, soda c\u00e1ustica<\/td><\/tr>
a\u00e7o carbono revestido com PTFE<\/td>Boa e ampla gama de produtos qu\u00edmicos.<\/td>Moderado<\/td>\u00c1cidos agressivos, cloro<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Por que o a\u00e7o inoxid\u00e1vel 316L supera o 304 em servi\u00e7os com cloreto?<\/h3>\n\n\n\n

Ao selecionar uma v\u00e1lvula de esfera qu\u00edmica para fluidos contendo cloreto, o F\u00f3rmula PREN<\/a> Aplica-se: PREN = %Cr + 3,3 x %Mo + 16 x %N. O a\u00e7o inoxid\u00e1vel 304 padr\u00e3o n\u00e3o cont\u00e9m molibd\u00eanio, resultando em um PREN de aproximadamente 18 a 20. O a\u00e7o inoxid\u00e1vel 316L adiciona de 2 a 3% de molibd\u00eanio, elevando o PREN para aproximadamente 24 a 28. \u00c9 por isso que o 316L \u00e9 a base para servi\u00e7os qu\u00edmicos, em vez do 304.<\/p>\n\n\n\n

\"Guia<\/figure>\n\n\n\n

Como escolher os materiais da bola, da haste e do selim?<\/h2>\n\n\n\n

Materiais para a bola e a haste<\/h3>\n\n\n\n

Esferas de a\u00e7o inoxid\u00e1vel 316L podem ser usadas em v\u00e1lvulas de esfera comuns em processos qu\u00edmicos. O a\u00e7o duplex 2205 \u00e9 recomendado para ambientes com alta concentra\u00e7\u00e3o de cloretos. Revestimentos de carboneto de tungst\u00eanio com face dura podem ser usados em aplica\u00e7\u00f5es corrosivas e abrasivas. O Monel K500 deve ser usado em ambientes com presen\u00e7a de sulfeto de hidrog\u00eanio (H\u2082O).<\/p>\n\n\n\n\n Destaque do Produto Principal<\/title>\n <style>\n \/* Added !important tags to prevent WordPress theme interference *\/\n .hero-card, .hero-card:hover, .hero-card:focus {\n display: flex;\n flex-wrap: wrap;\n align-items: center;\n padding: 24px;\n max-width: 900px;\n margin: 40px auto;\n font-family: 'Poppins', Arial, sans-serif;\n text-decoration: none !important;\n color: inherit;\n\n \/* \u2014\u2014 Neumorphism \u5185\u51f9 \u2014\u2014 *\/\n background: #f7f8fa;\n border-radius: 16px;\n border: 1px solid #e5e7eb;\n box-shadow:\n inset 6px 6px 12px rgba(0,0,0,0.08),\n inset -6px -6px 12px rgba(255,255,255,0.9);\n\n transition: all 0.3s ease; \n }\n\n .hero-card:hover {\n box-shadow:\n 0 8px 20px rgba(0,0,0,0.12),\n 0 4px 8px rgba(0,0,0,0.06);\n transform: translateY(-4px);\n }\n\n .hero-image {\n width: 220px;\n height: auto;\n border-radius: 12px;\n object-fit: cover;\n flex-shrink: 0;\n transition: transform 0.3s ease; \n }\n\n .hero-card:hover .hero-image {\n transform: scale(1.03);\n }\n\n .hero-content {\n padding-left: 24px;\n flex: 1;\n min-width: 260px;\n transition: transform 0.3s ease;\n }\n\n .hero-title {\n font-size: 1.6rem;\n font-weight: 600;\n margin-bottom: 12px;\n color: #222;\n }\n\n .hero-description {\n font-size: 1rem;\n color: #555;\n margin-bottom: 18px;\n font-weight: 400;\n line-height: 1.6;\n }\n\n .hero-link {\n display: inline-block;\n padding: 10px 20px;\n background-color: #1569AE; \/* \u9002\u914d\u4e86\u9600\u95e8\u54c1\u724c\u7684\u4e3b\u9898\u84dd *\/\n color: #fff !important;\n text-decoration: none !important;\n border-radius: 8px;\n font-weight: 600;\n transition: background 0.2s ease-in-out;\n }\n\n .hero-link:hover {\n background-color: #125a96;\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\n\n\n<a class=\"hero-card\" href=\"https:\/\/www.onerovalve.com\/pt\/product\/trunnion-ball-valve\/\" target=\"_blank\">\n <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/onerovalve.b-cdn.net\/wp-content\/uploads\/2024\/08\/Web-1920-%E2%80%93-9.jpg\" alt=\"V\u00e1lvula de esfera munh\u00e3o\">\n \n <div class=\"hero-content\">\n <div class=\"hero-title\">V\u00e1lvula de esfera munh\u00e3o<\/div>\n\n <div class=\"hero-description\">\n <strong>Tamanho:<\/strong> 2\u2033~48\u2033<br>\n <strong>Press\u00e3o:<\/strong> 150LB-2500LB<br>\n <strong>Temperatura aplic\u00e1vel:<\/strong> -196~350\u2103\n <\/div>\n\n <span class=\"hero-link\">Ver produto<\/span>\n <\/div>\n<\/a>\n\n\n\n<h3 class=\"wp-block-heading\">Assentos de PTFE e outras possibilidades<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">O <a href=\"https:\/\/www.onerovalve.com\/pt\/blog\/ball-valve-seat-material-compatibility-guide\/\" target=\"_blank\" rel=\"noreferrer noopener\">V\u00e1lvula de esfera revestida com PTFE<\/a> Pode ser utilizado na mais ampla gama de produtos qu\u00edmicos, at\u00e9 200 graus Celsius. O PTFE com carga de vidro oferece maior resist\u00eancia \u00e0 flu\u00eancia. O PTFE com carga de carbono funciona bem em aplica\u00e7\u00f5es de alta press\u00e3o. O RPTFE \u00e9 refor\u00e7ado com fibras para maior resist\u00eancia ao calor. As sedes em PEEK aumentam a faixa de temperatura para 260 graus Celsius, com maior resist\u00eancia a solventes. Especifique o PEEK somente se as capacidades do PTFE forem excedidas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Uma v\u00e1lvula de esfera resistente a produtos qu\u00edmicos, para uso com solventes ou em altas temperaturas, se beneficiar\u00e1 ao m\u00e1ximo da especifica\u00e7\u00e3o de sedes em PEEK.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Assentos de metal<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.onerovalve.com\/pt\/product\/hard-seated-ball-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">Assentos de metal<\/a> S\u00e3o utilizadas em situa\u00e7\u00f5es onde a temperatura excede a capacidade do PTFE ou PEEK, e em condi\u00e7\u00f5es abrasivas. As v\u00e1lvulas de esfera para processamento qu\u00edmico com faces de veda\u00e7\u00e3o metal-metal e altas temperaturas garantem que n\u00e3o haja degrada\u00e7\u00e3o do material de veda\u00e7\u00e3o, proporcionando um fechamento confi\u00e1vel. A contrapartida \u00e9 o aumento do torque.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Como escolher um fabricante confi\u00e1vel de v\u00e1lvulas de esfera<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Certifica\u00e7\u00f5es que s\u00e3o importantes<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A norma API 6D define o padr\u00e3o para projeto, fabrica\u00e7\u00e3o e teste de tubula\u00e7\u00f5es e v\u00e1lvulas qu\u00edmicas. A certifica\u00e7\u00e3o CE\/PED \u00e9 importante para acesso ao mercado europeu. A certifica\u00e7\u00e3o NACE MR0175 \u00e9 essencial para aplica\u00e7\u00f5es em ambientes com fluidos corrosivos.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A norma ISO 15848-1 define os testes de emiss\u00f5es fugitivas em gaxetas de haste, aplic\u00e1veis a v\u00e1lvulas utilizadas em processos qu\u00edmicos onde a emiss\u00e3o de compostos org\u00e2nicos vol\u00e1teis \u00e9 controlada. O modelo ONERO possui certifica\u00e7\u00f5es API 6D, ISO 9001, ISO 14001, ISO 45001, CE e AP1607.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Instala\u00e7\u00f5es de teste internas<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">O teste hidrost\u00e1tico do corpo comprova a integridade da barreira de press\u00e3o. O teste de vazamento da sede, conforme a norma API 6D Classe A\/B, comprova a capacidade de veda\u00e7\u00e3o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Por que um fabricante de 38 anos supera o comerciante<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A rastreabilidade dos materiais, que envolve o rastreamento da composi\u00e7\u00e3o do corpo, da esfera, da haste e da sede da v\u00e1lvula at\u00e9 a certifica\u00e7\u00e3o da f\u00e1brica, \u00e9 poss\u00edvel nas instala\u00e7\u00f5es do fabricante. A v\u00e1lvula de esfera resistente a produtos qu\u00edmicos, que opera em condi\u00e7\u00f5es agressivas, exige rastreabilidade de materiais. Os 38 anos de experi\u00eancia em fabrica\u00e7\u00e3o, as 8 patentes de P&D e os servi\u00e7os de ODM (fabrica\u00e7\u00e3o sob encomenda) da ONERO para empreiteiras de EPC (engenharia, aquisi\u00e7\u00e3o e constru\u00e7\u00e3o) demonstram sua infraestrutura incompar\u00e1vel.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Lista de verifica\u00e7\u00e3o para compradores na sele\u00e7\u00e3o de materiais e design<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Antes de selecionar qualquer v\u00e1lvula para servi\u00e7os qu\u00edmicos, certifique-se de que as seguintes informa\u00e7\u00f5es estejam confirmadas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Composi\u00e7\u00e3o do fluido de processo, incluindo materiais residuais.<\/li>\n\n\n\n<li>Teor de cloreto, caso se considere o a\u00e7o inoxid\u00e1vel.<\/li>\n\n\n\n<li>Faixa de temperatura, incluindo temperaturas extremas.<\/li>\n\n\n\n<li>Classe de press\u00e3o ASME conforme B16.34<\/li>\n\n\n\n<li>Press\u00f5es parciais de H2S e CO2 em servi\u00e7o com sulfeto de hidrog\u00eanio (H2S).<\/li>\n\n\n\n<li>Tamanho e concentra\u00e7\u00e3o das part\u00edculas abrasivas em servi\u00e7o de pasta abrasiva.<\/li>\n\n\n\n<li>Classe de emiss\u00f5es fugitivas de acordo com a norma ISO 15848-1<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A verifica\u00e7\u00e3o da compatibilidade qu\u00edmica da v\u00e1lvula de esfera com base em dados de corros\u00e3o publicados para o fluido espec\u00edfico em condi\u00e7\u00f5es reais de servi\u00e7o \u00e9 a etapa final antes da finaliza\u00e7\u00e3o da especifica\u00e7\u00e3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Perguntas frequentes<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. Qual o melhor material para v\u00e1lvulas de esfera qu\u00edmicas?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e3o existe um \u00fanico material ideal. O a\u00e7o inoxid\u00e1vel 316L \u00e9 adequado para a maioria das aplica\u00e7\u00f5es qu\u00edmicas em geral. O duplex 2205 ou o superduplex 2507 s\u00e3o indicados para ambientes com alto teor de cloreto ou \u00e1cidos. O Hastelloy C276 ou o Monel 400 s\u00e3o utilizados para meios agressivos, incluindo o \u00e1cido fluor\u00eddrico.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. O a\u00e7o inoxid\u00e1vel 316 \u00e9 adequado para contato com \u00e1cidos?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">O a\u00e7o inoxid\u00e1vel 316L \u00e9 adequado para muitas aplica\u00e7\u00f5es com \u00e1cidos dilu\u00eddos em temperaturas moderadas. N\u00e3o \u00e9 adequado para \u00e1cido sulf\u00farico concentrado em concentra\u00e7\u00f5es intermedi\u00e1rias, \u00e1cido fluor\u00eddrico em qualquer concentra\u00e7\u00e3o ou \u00e1cido clor\u00eddrico em temperaturas elevadas. Sempre verifique os dados de corros\u00e3o para o \u00e1cido, concentra\u00e7\u00e3o e temperatura espec\u00edficos.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Assentos de PTFE versus assentos de PEEK: qual \u00e9 o melhor?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Uma v\u00e1lvula de esfera revestida com PTFE \u00e9 adequada para a mais ampla gama de produtos qu\u00edmicos e para a maioria das aplica\u00e7\u00f5es at\u00e9 200 graus Celsius. O PEEK amplia a capacidade de temperatura para 260 graus Celsius, com melhor resist\u00eancia a solventes e desempenho de flu\u00eancia. Especifique o PEEK somente quando os limites reais do PTFE forem atingidos.<\/p>\n\n\n\n<style>\n \/* \u6837\u5f0f\u9694\u79bb\uff1a\u9632\u6b62\u5f71\u54cd\u6574\u7ad9\u5176\u4ed6\u5143\u7d20 *\/\n .valve-nav-banner {\n position: relative;\n width: 100%;\n max-width: 900px;\n min-height: 280px;\n margin: 40px auto;\n border-radius: 12px;\n overflow: hidden;\n display: flex;\n flex-direction: column;\n align-items: center;\n justify-content: center;\n text-align: center;\n padding: 40px 20px;\n box-sizing: border-box;\n font-family: 'Poppins', Arial, sans-serif;\n background-image: url('https:\/\/onerovalve.b-cdn.net\/wp-content\/uploads\/2024\/08\/banner-2.jpg');\n background-size: cover;\n background-position: center;\n }\n\n \/* \u9ed1\u8272\u534a\u900f\u660e\u906e\u7f69\u5c42\uff0c\u786e\u4fdd\u767d\u8272\u6587\u5b57\u5728\u590d\u6742\u80cc\u666f\u56fe\u4e0a\u4f9d\u7136\u6e05\u6670\u53ef\u8bfb *\/\n .valve-nav-banner::before {\n content: '';\n position: absolute;\n top: 0;\n left: 0;\n width: 100%;\n height: 100%;\n background: rgba(0, 0, 0, 0.55); \n z-index: 1;\n }\n\n .valve-nav-content {\n position: relative;\n z-index: 2;\n max-width: 750px;\n }\n\n \/* \u52a0\u7c97\u7684\u6807\u9898\u6837\u5f0f *\/\n .valve-nav-title {\n color: #ffffff;\n font-size: 26px;\n line-height: 1.4;\n margin: 0 0 25px 0;\n }\n\n \/* CTA \u6309\u94ae\u6837\u5f0f\uff1a\u5df2\u9002\u914d Onero Valve \u54c1\u724c\u4e13\u5c5e\u84dd #1569AE *\/\n .valve-cta-btn {\n display: inline-block;\n background-color: #1569AE;\n color: #ffffff !important;\n font-size: 16px;\n font-weight: 600;\n text-decoration: none !important;\n padding: 14px 36px;\n border-radius: 6px;\n transition: all 0.3s ease;\n border: 2px solid #1569AE;\n }\n\n \/* \u4ea4\u4e92\u8272\uff1a\u60ac\u505c\u65f6\u80cc\u666f\u53d8\u767d\uff0c\u6587\u5b57\u53d8\u4e3b\u9898\u8272 *\/\n .valve-cta-btn:hover {\n background-color: #ffffff;\n color: #1569AE !important;\n border-color: #ffffff;\n }\n\n @media (max-width: 600px) {\n .valve-nav-title {\n font-size: 20px;\n }\n .valve-nav-banner {\n min-height: 220px;\n }\n }\n<\/style>\n\n<div class=\"valve-nav-banner\">\n <div class=\"valve-nav-content\">\n <p class=\"valve-nav-title\"><strong>V\u00e1lvulas industriais de alto desempenho. Explore nossa linha completa de produtos.<\/strong><\/p>\n <a href=\"https:\/\/www.onerovalve.com\/pt\/products\/\" target=\"_blank\" class=\"valve-cta-btn\">Veja todos os produtos<\/a>\n <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Quick Answer: For proper working of the chemical ball valve, it has to be resistant to the fluid, endure the temperature and pressure of the system,<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":6956,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[61],"tags":[],"class_list":["post-6952","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-application"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Chemical Ball Valves: Material Selection Guide | ONERO<\/title>\n<meta name=\"description\" content=\"Chemical ball valve material guide for chemical process: compare carbon steel,316L,duplex 2205\/2507, Hastelloy, PTFE & PEEK seats. 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