{"id":25129,"date":"2026-06-26T09:16:26","date_gmt":"2026-06-26T09:16:26","guid":{"rendered":"https:\/\/d3l42vym2l.onrocket.site\/?p=25129"},"modified":"2026-07-13T07:05:35","modified_gmt":"2026-07-13T07:05:35","slug":"valve-standards-guide","status":"publish","type":"post","link":"https:\/\/www.vincervalve.com\/pt\/valve-standards-guide\/","title":{"rendered":"Normas para v\u00e1lvulas explicadas \u2014 Um guia pr\u00e1tico sobre API, ASME, ISO, DIN e JIS"},"content":{"rendered":"\n\n\n\n \n \n Normas para v\u00e1lvulas explicadas: Um guia pr\u00e1tico sobre API, ASME, ISO, DIN e JIS<\/title>\n <link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n <link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\n <link href=\"https:\/\/fonts.googleapis.com\/css2?family=Roboto:wght@400;600;700&display=swap\" rel=\"stylesheet\">\n <style>\n \/* ===== CSS Reset ===== *\/\n *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}\n \n \/* ===== CSS Variables ===== *\/\n :root{\n \/* Brand Colors *\/\n --color-primary:#002174;\n --color-accent:#066aab;\n --color-text-primary:rgba(0,0,0,0.85);\n --color-text-body:#54595F; \n --color-text-muted:rgba(0,0,0,0.55);\n --color-white:#fff;\n --color-border:rgba(0,0,0,0.25);\n --color-error:#d63637;\n --color-bg:#fafbfc;\n --color-bg-surface:#fff;\n \n \/* Design-specified colors *\/\n --color-body-text:#54595F; \n --color-surface-card:#fff;\n --color-surface-warning:#fef3f2;\n --color-surface-info:#f0f4fa;\n --color-surface-positive:#f0faf4;\n --color-border-subtle:rgba(0,0,0,0.08);\n --color-highlight-flag:rgba(0,33,116,0.08);\n \n \/* Typography *\/\n --font-heading:'Roboto',sans-serif; \n --font-body:'Roboto',sans-serif; \n --font-mono:'SF Mono','Fira Code','Cascadia Code',monospace;\n --font-size-body:17px; \n --font-size-sm:14px;\n --font-size-md:17px;\n --font-size-lg:20px;\n --font-size-xl:36px;\n --font-size-2xl:42px;\n --font-size-xs:13px;\n --line-height-body:1.8; \n --font-weight-regular:400; \n --font-weight-medium:500;\n --font-weight-semibold:600; \n --font-weight-bold:700;\n \n \/* Layout *\/\n --prose-width:100%; \n --spacing-xs:5px;\n --spacing-sm:10px;\n --spacing-md:15px;\n --spacing-lg:24px;\n \n \/* Borders *\/\n --radius-sm:3px;\n --radius-md:4px;\n --border-subtle:1px solid rgba(0,0,0,0.08);\n \n \/* Spacing tokens from design plan *\/\n --sp-section:4em;\n --sp-subsection:2.5em;\n --sp-paragraph:1.25em;\n --sp-table:1.5em;\n --sp-callout:2em;\n }\n \n \n \/* ===== Base ===== *\/\n html{font-size:var(--font-size-body)}\n body{\n font-family:var(--font-body);\n color:var(--color-body-text);\n background:var(--color-bg);\n line-height:var(--line-height-body);\n font-weight:var(--font-weight-regular);\n -webkit-font-smoothing:antialiased;\n -moz-osx-font-smoothing:grayscale;\n }\n \n \/* ===== Article Container ===== *\/\n .article-container{\n width: 100%;\n max-width:var(--prose-width); \n margin:0 auto;\n padding:3rem 0 4rem;\n padding-left:1.5rem;\n padding-right:1.5rem;\n }\n \n \/* ===== Typography ===== *\/\n h2{\n font-family:'Roboto', sans-serif;\n color:#002174;\n font-size:2rem;\n font-weight:600;\n border-bottom:3px solid #6EC1E4; \n padding-bottom:10px;\n display:inline-block; \n margin-bottom:0.6em;\n letter-spacing:-0.005em;\n }\n \n h3{\n font-family:'Roboto', sans-serif;\n color:#54595F;\n font-size:1.5rem;\n font-weight:600;\n margin-top:var(--sp-subsection);\n margin-bottom:0.5em;\n }\n \n p{\n font-family:'Roboto', sans-serif;\n color:#54595F;\n font-size:17px;\n font-weight:400;\n line-height:1.8;\n margin-bottom:var(--sp-paragraph);\n }\n \n .subtitle-intro {\n font-size: 1.2rem;\n }\n \n strong{font-weight:var(--font-weight-medium)}\n \n a{\n color:var(--color-accent);\n font-weight:var(--font-weight-medium);\n text-decoration:none;\n }\n a:hover{text-decoration:underline}\n \n \/* ===== HR ===== *\/\n hr{\n border:none;\n height:1px;\n background:var(--color-border-subtle);\n margin:3em 0;\n width:100%;\n }\n \n \/* ===== Blockquote ===== *\/\n blockquote{\n border-left:3px solid var(--color-accent);\n background:var(--color-surface-info);\n font-style:italic;\n font-weight:var(--font-weight-regular);\n color:var(--color-body-text);\n padding:16px 20px;\n margin:1.5em 0;\n }\n blockquote p:last-child{margin-bottom:0}\n \n \/* ===== Lists ===== *\/\n ul,ol{padding-left:1.5em;margin-bottom:var(--sp-paragraph); font-family: 'Roboto', sans-serif; color:#54595F; line-height: 1.8;}\n li{margin-bottom:0.5em}\n ul li::marker{color:var(--color-accent)}\n ol li::marker{color:var(--color-accent)}\n \n \/* ===== Code ===== *\/\n code{\n font-family:var(--font-mono);\n font-size:0.875em;\n padding:2px 6px;\n border-radius:var(--radius-sm);\n background:rgba(0,0,0,0.04);\n word-break:break-word;\n }\n \n \n \/* ===== Tables ===== *\/\n .table-wrapper{\n overflow-x:auto;\n -webkit-overflow-scrolling:touch;\n margin:var(--sp-table) 0;\n }\n table{\n width:100%;\n border-collapse:collapse;\n font-size:0.875rem;\n line-height:1.5;\n }\n th{\n background:var(--color-primary);\n color:var(--color-white);\n font-family:var(--font-heading);\n font-weight:var(--font-weight-semibold);\n font-size:0.8125rem;\n text-transform:uppercase;\n letter-spacing:0.03em;\n padding:10px 14px;\n text-align:left;\n white-space:nowrap;\n }\n td{\n padding:10px 14px;\n border-bottom:var(--color-border-subtle) solid 1px;\n vertical-align:top;\n font-family: 'Roboto', sans-serif;\n font-size:0.875rem;\n color:var(--color-body-text);\n }\n table tr:nth-child(even) td{background:rgba(0,0,0,0.02)}\n \n \n \/* ===== Breakpoint: BP-1 Pyramid ===== *\/\n .bp-1-pyramid{\n display:flex;\n flex-direction:column;\n gap:0;\n margin:var(--sp-callout) 0;\n }\n .bp-1-layer{\n display:flex;\n align-items:center;\n gap:12px;\n padding:14px 18px;\n border-radius:var(--radius-md);\n transition:opacity 0.2s;\n margin-bottom:1px;\n }\n .bp-1-layer:first-child{border-radius:var(--radius-md) var(--radius-md) 0 0}\n .bp-1-layer:last-child{border-radius:0 0 var(--radius-md) var(--radius-md);margin-bottom:0}\n .bp-1-layer-code{width:100%;background:var(--color-primary);color:var(--color-white)}\n .bp-1-layer-standard{width:85%;background:var(--color-accent);color:var(--color-white)}\n .bp-1-layer-spec{width:70%;background:#e8edf4;color:#54595F}\n .bp-1-layer-icon{\n flex-shrink:0;\n width:22px;\n height:22px;\n display:flex;\n align-items:center;\n justify-content:center;\n }\n .bp-1-layer-icon svg{\n width:20px;\n height:20px;\n display:block;\n }\n .bp-1-layer-code .bp-1-layer-icon svg{color:var(--color-white)}\n .bp-1-layer-standard .bp-1-layer-icon svg{color:var(--color-white)}\n .bp-1-layer-spec .bp-1-layer-icon svg{color:var(--color-primary)}\n .bp-1-layer-content{\n display:flex;\n align-items:center;\n justify-content:space-between;\n flex:1;\n min-width:0;\n }\n .bp-1-layer-label{\n font-weight:var(--font-weight-semibold);\n font-size:0.9375rem;\n letter-spacing:0.01em;\n }\n .bp-1-layer-example{\n font-size:0.8125rem;\n opacity:0.85;\n font-family:var(--font-mono);\n letter-spacing:-0.01em;\n }\n .bp-1-layer-code .bp-1-layer-example{opacity:0.9}\n .bp-1-layer-spec .bp-1-layer-example{opacity:0.7}\n \n @media(max-width:767px){\n .bp-1-layer{flex-wrap:wrap;gap:8px}\n .bp-1-layer-standard{width:92%}\n .bp-1-layer-spec{width:84%}\n .bp-1-layer-content{flex-wrap:wrap;gap:4px}\n }\n \n \/* ===== Breakpoint: BP-2 Takeaway ===== *\/\n .bp-2-takeaway{\n display:flex;\n gap:16px;\n align-items:flex-start;\n border-left:3px solid var(--color-primary);\n background:var(--color-surface-info);\n padding:18px 20px;\n margin:var(--sp-callout) 0;\n border-radius:0 var(--radius-md) var(--radius-md) 0;\n }\n .bp-2-icon{\n flex-shrink:0;\n width:22px;\n height:22px;\n margin-top:2px;\n }\n .bp-2-icon svg{\n width:22px;\n height:22px;\n color:var(--color-primary);\n display:block;\n }\n .bp-2-body{flex:1;min-width:0}\n .bp-2-body .bp-2-lead{\n font-weight:var(--font-weight-bold);\n font-size:1rem;\n color:var(--color-primary);\n margin-bottom:4px;\n }\n .bp-2-body .bp-2-main{\n font-size:0.9375rem;\n color:var(--color-body-text);\n line-height:1.5;\n }\n \n \/* ===== Breakpoint: BP-3 Material Card ===== *\/\n .bp-3-material-card{\n display:flex;\n gap:22px;\n padding:22px 24px;\n background:var(--color-surface-card);\n border:var(--border-subtle);\n border-radius:var(--radius-md);\n margin:var(--sp-callout) 0;\n align-items:flex-start;\n }\n .bp-3-visual{\n display:flex;\n flex-direction:column;\n align-items:center;\n gap:12px;\n flex-shrink:0;\n min-width:180px;\n }\n .bp-3-circle-row{\n display:flex;\n align-items:center;\n gap:12px;\n }\n .bp-3-circle{\n width:60px;\n height:60px;\n border-radius:50%;\n border:3px solid var(--color-primary);\n display:flex;\n align-items:center;\n justify-content:center;\n flex-shrink:0;\n background:var(--color-bg);\n }\n .bp-3-circle span{\n font-family:var(--font-heading);\n font-weight:var(--font-weight-bold);\n font-size:1.375rem;\n color:var(--color-primary);\n line-height:1;\n }\n .bp-3-arrow{\n font-size:1.25rem;\n color:var(--color-accent);\n font-weight:var(--font-weight-bold);\n flex-shrink:0;\n }\n .bp-3-temp-text{\n font-size:0.8125rem;\n color:var(--color-body-text);\n font-family:var(--font-mono);\n background:var(--color-highlight-flag);\n padding:4px 10px;\n border-radius:var(--radius-sm);\n white-space:nowrap;\n }\n .bp-3-second-group{\n font-size:0.75rem;\n color:var(--color-text-muted);\n text-align:center;\n display:flex;\n align-items:center;\n gap:8px;\n padding:6px 12px;\n background:var(--color-highlight-flag);\n border-radius:var(--radius-sm);\n width:100%;\n justify-content:center;\n }\n .bp-3-second-group .bp-3-group-num{\n font-family:var(--font-heading);\n font-weight:var(--font-weight-semibold);\n color:var(--color-primary);\n font-size:0.8125rem;\n }\n .bp-3-explanation{flex:1;min-width:0}\n .bp-3-explanation p{\n font-size:0.875rem;\n margin-bottom:0.6em;\n line-height:1.55;\n }\n .bp-3-explanation .bp-3-explanation-lead{\n font-weight:var(--font-weight-bold);\n font-size:0.9375rem;\n color:var(--color-primary);\n margin-bottom:6px;\n }\n \n @media(max-width:767px){\n .bp-3-material-card{flex-direction:column}\n .bp-3-visual{min-width:unset;width:100%}\n }\n \n \/* ===== Breakpoint: BP-4 Stat Highlight ===== *\/\n .bp-4-stat-highlight{\n display:flex;\n gap:24px;\n align-items:center;\n background:linear-gradient(135deg,rgba(0,33,116,0.97) 0%,#002174 100%);\n padding:28px 32px;\n margin:var(--sp-callout) 0;\n border-radius:var(--radius-md);\n color:var(--color-white);\n }\n .bp-4-big-number{\n font-family:var(--font-heading);\n font-weight:var(--font-weight-bold);\n font-size:5rem;\n line-height:1;\n color:var(--color-white);\n flex-shrink:0;\n letter-spacing:-0.03em;\n }\n .bp-4-text{flex:1;min-width:0}\n .bp-4-text .bp-4-headline{\n font-family:var(--font-heading);\n font-weight:var(--font-weight-semibold);\n font-size:1.25rem;\n line-height:1.3;\n color:var(--color-white);\n margin-bottom:6px;\n }\n .bp-4-text .bp-4-body{\n font-size:0.9375rem;\n color:rgba(255,255,255,0.88);\n line-height:1.55;\n }\n .bp-4-text .bp-4-body em{font-style:italic}\n \n @media(max-width:767px){\n .bp-4-stat-highlight{flex-direction:column;gap:8px;align-items:flex-start;padding:22px 20px}\n .bp-4-big-number{font-size:3.5rem}\n }\n \n \/* ===== Breakpoint: BP-5 Warning ===== *\/\n .bp-5-warning{\n display:flex;\n gap:14px;\n align-items:flex-start;\n border-left:3px solid var(--color-error);\n background:var(--color-surface-warning);\n padding:18px 20px;\n margin:var(--sp-callout) 0;\n border-radius:0 var(--radius-md) var(--radius-md) 0;\n }\n .bp-5-icon{\n flex-shrink:0;\n width:22px;\n height:22px;\n margin-top:2px;\n }\n .bp-5-icon svg{\n width:22px;\n height:22px;\n color:var(--color-error);\n display:block;\n }\n .bp-5-content{flex:1;min-width:0}\n .bp-5-content .bp-5-headline{\n font-weight:var(--font-weight-bold);\n font-size:0.9375rem;\n color:var(--color-body-text);\n margin-bottom:4px;\n }\n .bp-5-content .bp-5-body{\n font-size:0.875rem;\n color:var(--color-body-text);\n line-height:1.5;\n opacity:0.9;\n }\n\n \n \/* ===== Breakpoint: BP-6 Exception ===== *\/\n .bp-6-exception{\n display:flex;\n gap:14px;\n align-items:flex-start;\n border-left:3px solid #059669;\n background:var(--color-surface-positive);\n padding:18px 20px;\n margin:var(--sp-callout) 0;\n border-radius:0 var(--radius-md) var(--radius-md) 0;\n }\n .bp-6-icon{\n flex-shrink:0;\n width:22px;\n height:22px;\n margin-top:2px;\n }\n .bp-6-icon svg{\n width:22px;\n height:22px;\n color:#059669;\n display:block;\n }\n .bp-6-content{flex:1;min-width:0}\n .bp-6-content .bp-6-body{\n font-size:0.875rem;\n line-height:1.55;\n color:var(--color-body-text);\n }\n .bp-6-content strong{color:#059669}\n \n \/* ===== Breakpoint: BP-7 Philosophy Cards ===== *\/\n .bp-7-philosophy{\n display:grid;\n grid-template-columns:1fr 1fr 1fr;\n gap:18px;\n margin:var(--sp-callout) 0;\n }\n .bp-7-card{\n background:var(--color-surface-card);\n border:var(--border-subtle);\n border-radius:var(--radius-md);\n border-top:3px solid transparent;\n padding:18px 16px 16px;\n box-shadow:0 1px 3px rgba(0,0,0,0.04);\n }\n .bp-7-card-ansi{border-top-color:var(--color-primary)}\n .bp-7-card-din{border-top-color:var(--color-accent)}\n .bp-7-card-jis{border-top-color:#059669}\n .bp-7-card-header{\n display:flex;\n align-items:center;\n gap:8px;\n margin-bottom:8px;\n font-weight:var(--font-weight-semibold);\n font-size:0.875rem;\n color:var(--color-primary);\n }\n .bp-7-card-header svg{\n width:16px;\n height:16px;\n display:block;\n flex-shrink:0;\n }\n .bp-7-card-ansi .bp-7-card-header svg{color:var(--color-primary)}\n .bp-7-card-din .bp-7-card-header svg{color:var(--color-accent)}\n .bp-7-card-jis .bp-7-card-header svg{color:#059669}\n .bp-7-card-body{\n font-size:0.8125rem;\n line-height:1.5;\n color:var(--color-text-body);\n }\n \n @media(max-width:767px){\n .bp-7-philosophy{grid-template-columns:1fr}\n }\n \n \/* ===== Breakpoint: BP-8 Checklist ===== *\/\n .bp-8-checklist{\n display:flex;\n flex-direction:column;\n gap:0;\n background:var(--color-surface-card);\n border:var(--border-subtle);\n border-radius:var(--radius-md);\n margin:var(--sp-callout) 0;\n overflow:hidden;\n }\n .bp-8-item{\n display:flex;\n align-items:center;\n gap:12px;\n padding:12px 18px;\n }\n .bp-8-item:nth-child(even){background:rgba(0,0,0,0.015)}\n .bp-8-item:not(:last-child){border-bottom:var(--border-subtle)}\n .bp-8-check{\n flex-shrink:0;\n width:20px;\n height:20px;\n }\n .bp-8-check svg{\n width:20px;\n height:20px;\n color:var(--color-accent);\n display:block;\n }\n .bp-8-label{\n font-size:0.875rem;\n line-height:1.45;\n color:var(--color-body-text);\n }\n \n \/* ===== Breakpoint: BP-9 Updates ===== *\/\n .bp-9-updates{\n display:flex;\n gap:18px;\n justify-content:space-between;\n margin:var(--sp-callout) 0;\n }\n .bp-9-update{\n flex:1;\n padding:16px 16px 14px;\n background:var(--color-surface-card);\n border-radius:var(--radius-md);\n border-top:2px solid var(--color-primary);\n border-left:var(--border-subtle);\n border-right:var(--border-subtle);\n border-bottom:var(--border-subtle);\n }\n .bp-9-month{\n display:inline-block;\n font-family:var(--font-heading);\n font-weight:var(--font-weight-semibold);\n font-size:0.6875rem;\n letter-spacing:0.04em;\n text-transform:uppercase;\n color:var(--color-white);\n background:var(--color-primary);\n padding:3px 10px;\n border-radius:20px;\n margin-bottom:8px;\n }\n .bp-9-standard{\n display:block;\n font-weight:var(--font-weight-bold);\n font-size:0.8125rem;\n color:var(--color-body-text);\n margin-bottom:3px;\n line-height:1.3;\n }\n .bp-9-action{\n display:block;\n font-size:0.75rem;\n color:var(--color-text-muted);\n line-height:1.4;\n }\n \n @media(max-width:767px){\n .bp-9-updates{flex-direction:column;gap:14px}\n }\n \n \/* ===== Responsive prose ===== *\/\n @media(max-width:767px){\n h2{font-size:1.1875rem}\n .article-container{padding:2rem 1rem 3rem}\n th,td{padding:8px 10px;font-size:0.8125rem}\n }\n \n \/* ===== Print ===== *\/\n @media print{\n .article-container{max-width:100%;padding:1in 0}\n body{background:#fff;color:#000}\n .bp-4-stat-highlight{background:#002174 !important;-webkit-print-color-adjust:exact;print-color-adjust:exact}\n th{background:#002174 !important;-webkit-print-color-adjust:exact;print-color-adjust:exact}\n .bp-1-layer-code,.bp-1-layer-standard{-webkit-print-color-adjust:exact;print-color-adjust:exact}\n .bp-7-card{border-top-color:inherit;box-shadow:none}\n .bp-8-item:nth-child(even){background:rgba(0,0,0,0.02)}\n }\n <\/style>\n<\/head>\n\n<body>\n\n <article class=\"article-container\">\n\n <p class=\"subtitle-intro\">Se alguma vez abriu um caderno de encargos para a aquisi\u00e7\u00e3o de v\u00e1lvulas e se sentiu perdido num mar de letras e n\u00fameros \u2014 API 6D, ASME B16.34, ISO 14313, EN 558, JIS B2071 \u2014, saiba que n\u00e3o est\u00e1 sozinho. O panorama global das normas relativas \u00e0s v\u00e1lvulas \u00e9 vasto, sobrep\u00f5e-se e, em grande parte, n\u00e3o est\u00e1 documentado num \u00fanico local que fa\u00e7a sentido para um engenheiro em exerc\u00edcio.<\/p>\n\n <p>Este guia \u00e9 exatamente esse ponto de refer\u00eancia \u00fanico. Explica quais s\u00e3o as principais normas relativas \u00e0s v\u00e1lvulas, como se relacionam entre si, o que distingue a ANSI da DIN e da JIS, e quais as normas que s\u00e3o relevantes para o seu setor. Sem rodeios, sem marketing \u2014 apenas a refer\u00eancia de que precisa.<\/p>\n\n<img decoding=\"async\" src=\"https:\/\/www.vincervalve.com\/wp-content\/uploads\/2026\/06\/Valve-Standards-1.webp\" \n alt=\"Normas para v\u00e1lvulas (1)\" \n style=\"width: 512px; height: 384px; max-width: 100%; object-fit: cover; border-radius: 12px; margin: 30px auto; display: block; box-shadow: 10px 10px 60px 0px rgba(210, 221, 224, 0.35); transition: all 0.3s ease; cursor: pointer;\"\n onmouseover=\"this.style.transform='translateY(-5px) scale(1.03)'; this.style.boxShadow='15px 25px 80px 0px rgba(210, 221, 224, 0.45)';\"\n onmouseout=\"this.style.transform='translateY(0) scale(1)'; this.style.boxShadow='10px 10px 60px 0px rgba(210, 221, 224, 0.35)';\">\n\n <hr>\n\n <h2>Explica\u00e7\u00e3o dos c\u00f3digos, normas e especifica\u00e7\u00f5es da hierarquia de normas da Valve<\/h2>\n\n <p>Mas, antes de mais: qual \u00e9 a diferen\u00e7a entre um c\u00f3digo, uma norma e uma especifica\u00e7\u00e3o? Estes tr\u00eas termos s\u00e3o frequentemente utilizados de forma intercambi\u00e1vel nas conversas, mas, no \u00e2mbito da aquisi\u00e7\u00e3o de material de engenharia, t\u00eam significados muito diferentes e confundir os termos pode levar a erros dispendiosos.<\/p>\n\n <p>Pense nisso como uma pir\u00e2mide de tr\u00eas camadas:<\/p>\n\n <p><strong>C\u00f3digos<\/strong> est\u00e3o no topo da lista. S\u00e3o documentos juridicamente vinculativos que lhe indicam <em>o que tem de fazer<\/em>. Uma norma n\u00e3o indica como projetar uma v\u00e1lvula; indica apenas que qualquer v\u00e1lvula instalada num determinado sistema de tubagem deve estar em conformidade com uma norma certificada. O c\u00f3digo mais frequentemente citado na aquisi\u00e7\u00e3o de v\u00e1lvulas \u00e9 o ASME B31.3 (Tubagem de Processo). Quando o B31.3 estipula que uma v\u00e1lvula deve estar em conformidade com uma \u201cnorma listada\u201d, isso significa que a v\u00e1lvula deve ser concebida e fabricada de acordo com uma norma como a API 600 ou a ASME B16.34. Os c\u00f3digos n\u00e3o s\u00e3o opcionais; t\u00eam for\u00e7a de lei na maioria das jurisdi\u00e7\u00f5es.<\/p>\n\n <p><strong>Normas<\/strong> ocupam a camada interm\u00e9dia. Dizem-te que <em>como faz\u00ea-lo<\/em>. Uma norma define os requisitos de conce\u00e7\u00e3o, as dimens\u00f5es, os materiais, os procedimentos de ensaio e a marca\u00e7\u00e3o. A API 600 (V\u00e1lvulas de porta em a\u00e7o), a ASME B16.34 (V\u00e1lvulas com extremidades flangeadas, roscadas e para soldadura) e a ISO 14313 (V\u00e1lvulas para condutas) s\u00e3o todas normas. S\u00e3o referenciadas por c\u00f3digos, mas n\u00e3o s\u00e3o, por si s\u00f3, juridicamente vinculativas, a menos que sejam adotadas por um c\u00f3digo ou contrato.<\/p>\n\n <p><strong>Especifica\u00e7\u00f5es<\/strong> formam a camada inferior. Dizem-te que <em>o que usar<\/em>. A norma ASTM A216 WCC \u00e9 uma especifica\u00e7\u00e3o de material que define a composi\u00e7\u00e3o qu\u00edmica e as propriedades mec\u00e2nicas das pe\u00e7as fundidas de a\u00e7o ao carbono utilizadas nos corpos das v\u00e1lvulas. Quando um engenheiro indica \u201ccorpo da v\u00e1lvula: ASTM A216 WCC\u201d numa ficha t\u00e9cnica, est\u00e1 a fazer refer\u00eancia a uma especifica\u00e7\u00e3o.<\/p>\n\n <p>Um exemplo pr\u00e1tico ilustra bem este conceito: uma refinaria de petr\u00f3leo necessita de uma v\u00e1lvula de guilhotina para uma linha de processo. A norma ASME B31.3 (o c\u00f3digo) estipula que as v\u00e1lvulas devem estar em conformidade com uma norma referenciada. O engenheiro seleciona a norma API 600 (a norma) como base de projeto. O engenheiro de materiais especifica a norma ASTM A216 WCC (a especifica\u00e7\u00e3o) para o corpo da v\u00e1lvula. Tr\u00eas camadas, uma v\u00e1lvula, zero ambiguidade quando feito corretamente.<\/p>\n\n <div class=\"bp-1-pyramid\">\n <div class=\"bp-1-layer bp-1-layer-code\">\n <div class=\"bp-1-layer-icon\">\n <svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n <path d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\" \/>\n <path d=\"m9 12 2 2 4-4\" \/>\n <\/svg>\n <\/div>\n <div class=\"bp-1-layer-content\">\n <span class=\"bp-1-layer-label\">C\u00f3digos<\/span>\n <span class=\"bp-1-layer-example\">ASME B31.3<\/span>\n <\/div>\n <\/div>\n <div class=\"bp-1-layer bp-1-layer-standard\">\n <div class=\"bp-1-layer-icon\">\n <svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n <circle cx=\"12\" cy=\"12\" r=\"3\" \/>\n <path d=\"M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1-2.83 2.83l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-4 0v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83-2.83l.06-.06A1.65 1.65 0 0 0 4.68 15a1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1 0-4h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 2.83-2.83l.06.06A1.65 1.65 0 0 0 9 4.68a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 4 0v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 2.83l-.06.06A1.65 1.65 0 0 0 19.4 9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 0 4h-.09a1.65 1.65 0 0 0-1.51 1z\" \/>\n <\/svg>\n <\/div>\n <div class=\"bp-1-layer-content\">\n <span class=\"bp-1-layer-label\">Normas<\/span>\n <span class=\"bp-1-layer-example\">API 600 \/ B16.34<\/span>\n <\/div>\n <\/div>\n <div class=\"bp-1-layer bp-1-layer-spec\">\n <div class=\"bp-1-layer-icon\">\n <svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n <path d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\" \/>\n <polyline points=\"14 2 14 8 20 8\" \/>\n <line x1=\"16\" y1=\"13\" x2=\"8\" y2=\"13\" \/>\n <line x1=\"16\" y1=\"17\" x2=\"8\" y2=\"17\" \/>\n <\/svg>\n <\/div>\n <div class=\"bp-1-layer-content\">\n <span class=\"bp-1-layer-label\">Especifica\u00e7\u00f5es<\/span>\n <span class=\"bp-1-layer-example\">ASTM A216 WCC<\/span>\n <\/div>\n <\/div>\n <\/div>\n\n <hr>\n\n <h2>Resumo das normas relativas \u00e0s v\u00e1lvulas de n\u00facleo das organiza\u00e7\u00f5es API, ASME e ISO<\/h2>\n\n <p>Tr\u00eas organiza\u00e7\u00f5es definem as normas para a conce\u00e7\u00e3o de v\u00e1lvulas a n\u00edvel mundial. Compreender como se relacionam entre si poupa-lhe horas de confus\u00e3o mais tarde. N\u00e3o s\u00e3o concorrentes. Funcionam em conjunto: a ASME estabelece as bases dimensionais e de press\u00e3o-temperatura, a API desenvolve requisitos de conce\u00e7\u00e3o espec\u00edficos do setor com base nessas bases e a ISO cria vers\u00f5es harmonizadas a n\u00edvel internacional que fazem refer\u00eancia a ambas.<\/p>\n\n <h3>Normas da API: a espinha dorsal do setor do petr\u00f3leo e do g\u00e1s<\/h3>\n\n <p>Se trabalha no setor do petr\u00f3leo e do g\u00e1s, as normas API s\u00e3o imprescind\u00edveis. Constituem a linguagem de especifica\u00e7\u00e3o global de facto para v\u00e1lvulas utilizadas nos setores a montante, a meio e a jusante da ind\u00fastria dos hidrocarbonetos.<\/p>\n\n <div class=\"table-wrapper\">\n <table>\n <thead>\n <tr>\n <th>API Padr\u00e3o<\/th>\n <th>Capas<\/th>\n <th>\u00daltima edi\u00e7\u00e3o<\/th>\n <th>O que isso significa na pr\u00e1tica<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td>API 6D<\/td>\n <td>V\u00e1lvulas para condutas (de esfera, de guilhotina, de reten\u00e7\u00e3o, de obturador)<\/td>\n <td>25.\u00aa ed. (2021) + Adenda 3 (2025)<\/td>\n <td>Especifica\u00e7\u00f5es de conce\u00e7\u00e3o de n\u00edvel superior para v\u00e1lvulas de servi\u00e7o em condutas, Classe 150 e 2500<\/td>\n <\/tr>\n <tr>\n <td>API 600<\/td>\n <td>V\u00e1lvulas de gaveta em a\u00e7o com tampa aparafusada<\/td>\n <td>14.\u00aa ed. (2021)<\/td>\n <td>A v\u00e1lvula de gaveta de refer\u00eancia para refinarias e instala\u00e7\u00f5es de processamento<\/td>\n <\/tr>\n <tr>\n <td>API 608<\/td>\n <td>V\u00e1lvulas de esfera met\u00e1licas<\/td>\n <td>5.\u00aa ed. (2021)<\/td>\n <td>Requisitos de conce\u00e7\u00e3o e desempenho para v\u00e1lvulas de esfera flutuantes e com munh\u00e3o<\/td>\n <\/tr>\n <tr>\n <td>API 609<\/td>\n <td>V\u00e1lvulas borboleta<\/td>\n <td>9.\u00aa ed. (2024)<\/td>\n <td>Abrange v\u00e1lvulas borboleta do tipo \u00ablug\u00bb, \u00abwafer\u00bb e de flange dupla<\/td>\n <\/tr>\n <tr>\n <td>API 598<\/td>\n <td>Inspe\u00e7\u00e3o e ensaio de v\u00e1lvulas<\/td>\n <td>10.\u00aa ed. (2016, reafirmada em 2021)<\/td>\n <td>O manual de valida\u00e7\u00e3o \u00e9 citado em praticamente todas as ordens de compra de v\u00e1lvulas<\/td>\n <\/tr>\n <tr>\n <td>API 602<\/td>\n <td>V\u00e1lvulas de guilhotina compactas em a\u00e7o (d NPS 4)<\/td>\n <td>10.\u00aa ed. (2023)<\/td>\n <td>Pequenas v\u00e1lvulas de porta, de esfera e de reten\u00e7\u00e3o em a\u00e7o forjado<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n <p>Se tiver de se lembrar de apenas uma norma API, que seja a API 6D. \u00c9 a especifica\u00e7\u00e3o para v\u00e1lvulas de condutas em torno da qual giram a maioria das outras normas. Se pretender inspecionar as v\u00e1lvulas \u00e0 chegada, a API 598 \u00e9 a sua lista de verifica\u00e7\u00e3o: define a press\u00e3o de ensaio do corpo (1,5\u00d7 a press\u00e3o m\u00e1xima admiss\u00edvel) e a press\u00e3o de ensaio da sede (1,1\u00d7 a press\u00e3o m\u00e1xima admiss\u00edvel).<\/p>\n\n <div class=\"bp-2-takeaway\">\n <div class=\"bp-2-icon\">\n <svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n <path d=\"M4 19.5v-15A2.5 2.5 0 0 1 6.5 2H19a1 1 0 0 1 1 1v18a1 1 0 0 1-1 1H6.5a1 1 0 0 1 0-5H20\" \/>\n <path d=\"M8 7h6\" \/>\n <path d=\"M8 11h8\" \/>\n <\/svg>\n <\/div>\n <div class=\"bp-2-body\">\n <div class=\"bp-2-lead\">Se tiver de se lembrar apenas de um padr\u00e3o de API:<\/div>\n <div class=\"bp-2-main\">API 6D \u2014 a especifica\u00e7\u00e3o para v\u00e1lvulas de condutas<\/div>\n <\/div>\n <\/div>\n\n <h3>Normas ASME: A Base Fundamental<\/h3>\n\n <p>As normas da s\u00e9rie ASME B16 constituem a base. Definem a geometria f\u00edsica e o intervalo de press\u00e3o e temperatura dentro do qual praticamente todas as v\u00e1lvulas industriais funcionam, independentemente da norma espec\u00edfica do setor que se aplique.<\/p>\n\n <div class=\"table-wrapper\">\n <table>\n <thead>\n <tr>\n <th>Norma ASME<\/th>\n <th>Capas<\/th>\n <th>\u00daltima edi\u00e7\u00e3o<\/th>\n <th>Por que \u00e9 importante<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td>B16.34<\/td>\n <td>V\u00e1lvulas com extremidades flangeadas, roscadas e para soldadura<\/td>\n <td>2025 (maio)<\/td>\n <td>A norma universal de conce\u00e7\u00e3o de v\u00e1lvulas; define os valores nominais de press\u00e3o e temperatura e os grupos de materiais para as Classes 150 e 4500<\/td>\n <\/tr>\n <tr>\n <td>B16.10<\/td>\n <td>Dimens\u00f5es \u00abpresenciais\u00bb e \u00abde ponta a ponta\u00bb<\/td>\n <td>2022<\/td>\n <td>Garante que a v\u00e1lvula se encaixa fisicamente entre as flanges e padroniza os comprimentos entre todos os fabricantes<\/td>\n <\/tr>\n <tr>\n <td>B16.5<\/td>\n <td>Flanges para tubos e acess\u00f3rios com flange (d NPS 24)<\/td>\n <td>2020<\/td>\n <td>A norma de dimens\u00f5es de flanges mais utilizada para tubagens de di\u00e2metro nominal<\/td>\n <\/tr>\n <tr>\n <td>B16.47<\/td>\n <td>Flanges de a\u00e7o de grande di\u00e2metro (NPS 26\u201360)<\/td>\n <td>2020<\/td>\n <td>Complemento ao B16.5 para aplica\u00e7\u00f5es de grande di\u00e2metro<\/td>\n <\/tr>\n <tr>\n <td>Um ponto seis dois cinco<\/td>\n <td>Extremidades para soldadura de topo<\/td>\n <td>2021<\/td>\n <td>Padroniza a geometria da prepara\u00e7\u00e3o das extremidades a soldar<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n <p>A norma B16.34 \u00e9 a \u00fanica que todo engenheiro de v\u00e1lvulas deve conhecer. O seu mecanismo central, o sistema de numera\u00e7\u00e3o de grupos de materiais, atribui um n\u00famero de grupo a cada material de corpo autorizado. Esse n\u00famero de grupo determina o limite m\u00e1ximo de press\u00e3o e temperatura. Um corpo de v\u00e1lvula fabricado com material do Grupo 1.1 (a\u00e7o ao carbono A216 WCC) tem uma press\u00e3o m\u00e1xima admiss\u00edvel a 400 \u00b0C diferente daquela de um corpo fabricado com material do Grupo 2.2 (a\u00e7o inoxid\u00e1vel 316 A351 CF8M). \u00c9 assim que as classifica\u00e7\u00f5es de press\u00e3o das v\u00e1lvulas funcionam na pr\u00e1tica. A Classe 300 n\u00e3o significa que a v\u00e1lvula possa suportar 300 psi a qualquer temperatura; a press\u00e3o real admiss\u00edvel depende do grupo de materiais e da temperatura de servi\u00e7o, e ambos podem ser consultados nas tabelas da norma B16.34.<\/p>\n\n <div class=\"bp-3-material-card\">\n <div class=\"bp-3-visual\">\n <div class=\"bp-3-circle-row\">\n <div class=\"bp-3-circle\"><span>1.1<\/span><\/div>\n <div class=\"bp-3-arrow\">\u2192<\/div>\n <div class=\"bp-3-temp-text\">400 \u00b0C \u2192 X bar<\/div>\n <\/div>\n <div class=\"bp-3-second-group\">\n <span>Grupo <\/span><span class=\"bp-3-group-num\">2.2<\/span>\n <span>\u2192 press\u00e3o m\u00ednima admiss\u00edvel<\/span>\n <\/div>\n <\/div>\n <div class=\"bp-3-explanation\">\n <div class=\"bp-3-explanation-lead\">Como os grupos de materiais determinam os valores nominais de press\u00e3o<\/div>\n <p>A cada material \u00e9 atribu\u00eddo um n\u00famero de grupo na norma ASME B16.34. Esse n\u00famero de grupo, combinado com a temperatura de servi\u00e7o, determina a press\u00e3o m\u00e1xima admiss\u00edvel. Um corpo de a\u00e7o ao carbono do Grupo 1.1 a 400 \u00b0C tem um limite m\u00e1ximo mais elevado do que um corpo de a\u00e7o inoxid\u00e1vel do Grupo 2.2 \u00e0 mesma temperatura \u2014 a cadeia de classifica\u00e7\u00e3o \u00e9 a seguinte: <strong>N\u00famero do grupo \u2192 Temperatura \u2192 Press\u00e3o admiss\u00edvel<\/strong>.<\/p>\n <\/div>\n <\/div>\n\n <h3>Harmoniza\u00e7\u00e3o global das normas ISO e EN<\/h3>\n\n <p>As normas ISO n\u00e3o substituem as normas API ou ASME, mas traduzem-nas em documentos reconhecidos internacionalmente. Trata-se de uma distin\u00e7\u00e3o fundamental que, por vezes, at\u00e9 mesmo engenheiros experientes n\u00e3o percebem.<\/p>\n\n <div class=\"table-wrapper\">\n <table>\n <thead>\n <tr>\n <th>Norma ISO<\/th>\n <th>Rela\u00e7\u00e3o com a API\/ASME<\/th>\n <th>\u00daltima edi\u00e7\u00e3o<\/th>\n <th>\u00c2mbito principal<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td>Norma Internacional<\/td>\n <td>Suplemento \u00e0 norma API 6D (25.\u00aa ed.)<\/td>\n <td>3.\u00aa ed. (junho de 2025)<\/td>\n <td>V\u00e1lvulas para condutas em projetos internacionais: a norma ISO que abrange a API 6D<\/td>\n <\/tr>\n <tr>\n <td>Norma Internacional ISO 14723<\/td>\n <td>Suplemento \u00e0 norma API 6DSS (3.\u00aa ed.)<\/td>\n <td>3.\u00aa ed. (2025)<\/td>\n <td>V\u00e1lvulas para condutas submarinas \u2014 vers\u00e3o internacional da especifica\u00e7\u00e3o submarina<\/td>\n <\/tr>\n <tr>\n <td>ISO 17292<\/td>\n <td>Com base na norma API 608<\/td>\n <td>Segunda edi\u00e7\u00e3o (2015)<\/td>\n <td>V\u00e1lvulas de esfera met\u00e1licas para uso industrial geral<\/td>\n <\/tr>\n <tr>\n <td>Norma Internacional ISO 5208<\/td>\n <td>API da Parallels 598<\/td>\n <td>4.\u00aa ed. (2015)<\/td>\n <td>Os ensaios de press\u00e3o das v\u00e1lvulas met\u00e1licas est\u00e3o cada vez mais em conformidade com a norma API 598<\/td>\n <\/tr>\n <tr>\n <td>ISO 15848-1<\/td>\n <td>Aut\u00f3nomo<\/td>\n <td>Segunda edi\u00e7\u00e3o (2015)<\/td>\n <td>Os ensaios de tipo de emiss\u00f5es fugitivas s\u00e3o a norma de refer\u00eancia para a certifica\u00e7\u00e3o de estanqueidade das juntas de veda\u00e7\u00e3o<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n <p>A norma ISO 14313:2025 tem apenas duas p\u00e1ginas. N\u00e3o se trata de um erro: todo o conte\u00fado t\u00e9cnico consta na norma API 6D. A norma ISO 14313 acrescenta requisitos suplementares para a ado\u00e7\u00e3o internacional, mas n\u00e3o \u00e9 uma norma aut\u00f3noma. Se adquirir a norma ISO 14313 sem tamb\u00e9m ter a API 6D, estar\u00e1 apenas com uma p\u00e1gina de rosto e um pref\u00e1cio. Este padr\u00e3o de co-depend\u00eancia repete-se em toda a fam\u00edlia de normas ISO relativas a v\u00e1lvulas e \u00e9 o aspeto mais importante a compreender sobre a rela\u00e7\u00e3o entre a ISO e a API.<\/p>\n\n <div class=\"bp-4-stat-highlight\">\n <div class=\"bp-4-big-number\">2<\/div>\n <div class=\"bp-4-text\">\n <div class=\"bp-4-headline\">p\u00e1ginas.<\/div>\n <div class=\"bp-4-body\">Essa \u00e9 a extens\u00e3o total da norma ISO 14313:2025. O conte\u00fado propriamente dito encontra-se na API 6D.<\/div>\n <\/div>\n <\/div>\n\n <hr>\n\n <h2>Orienta\u00e7\u00e3o sobre as normas internacionais: ANSI, DIN e JIS<\/h2>\n\n <p>Os tr\u00eas principais sistemas de normaliza\u00e7\u00e3o regionais \u2014 ANSI\/ASME (Am\u00e9ricas), DIN\/EN (Europa) e JIS (Jap\u00e3o\/\u00c1sia) \u2014 apresentam diverg\u00eancias em tr\u00eas aspetos pr\u00e1ticos. Quando se adquirem v\u00e1lvulas em diferentes regi\u00f5es, \u00e9 nestes aspetos que ocorrem erros.<\/p>\n\n <h3>Sistemas de classe de press\u00e3o: Classe vs. PN vs. K<\/h3>\n\n <p>A diferen\u00e7a mais fundamental entre os tr\u00eas sistemas reside na forma como designam os valores nominais de press\u00e3o, e nenhum desses n\u00fameros significa o que parece significar \u00e0 primeira vista.<\/p>\n\n <div class=\"table-wrapper\">\n <table>\n <thead>\n <tr>\n <th>Classe ANSI\/ASME<\/th>\n <th>DIN\/EN PN<\/th>\n <th>Classifica\u00e7\u00e3o JIS K<\/th>\n <th>Sobreposi\u00e7\u00e3o aproximada<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td>Classe 150<\/td>\n <td>PN20<\/td>\n <td>10 km<\/td>\n <td>Servi\u00e7o geral de baixa press\u00e3o<\/td>\n <\/tr>\n <tr>\n <td>Classe 300<\/td>\n <td>PN50<\/td>\n <td>20 mil<\/td>\n <td>Processo de m\u00e9dia press\u00e3o<\/td>\n <\/tr>\n <tr>\n <td>Classe 600<\/td>\n <td>PN100<\/td>\n <td>30 mil 40 mil<\/td>\n <td>Conduta de alta press\u00e3o<\/td>\n <\/tr>\n <tr>\n <td>Classe 900<\/td>\n <td>PN160<\/td>\n <td> <\/td>\n <td>Processo de elevada integridade<\/td>\n <\/tr>\n <tr>\n <td>Classe 1500<\/td>\n <td>PN250<\/td>\n <td> <\/td>\n <td>Condi\u00e7\u00f5es de funcionamento exigentes<\/td>\n <\/tr>\n <tr>\n <td>Classe 2500<\/td>\n <td>PN420<\/td>\n <td> <\/td>\n <td>Press\u00e3o extrema<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n <p>A palavra \u201caproximado\u201d nessa tabela \u00e9 determinante. A Classe 300 n\u00e3o \u00e9 equivalente \u00e0 PN50, uma vez que as temperaturas de refer\u00eancia da rela\u00e7\u00e3o press\u00e3o-temperatura s\u00e3o diferentes (as classifica\u00e7\u00f5es ANSI referem-se ao desempenho do material a temperaturas mais elevadas; as classifica\u00e7\u00f5es PN utilizam uma temperatura de refer\u00eancia mais baixa). Uma v\u00e1lvula classificada como Classe 300 pode ter uma press\u00e3o m\u00e1xima admiss\u00edvel de 51,1 bar a 38 \u00b0C em a\u00e7o ao carbono, enquanto uma v\u00e1lvula PN50 tem uma classifica\u00e7\u00e3o de 50 bar \u00e0 temperatura ambiente. S\u00e3o valores pr\u00f3ximos, mas n\u00e3o s\u00e3o intercambi\u00e1veis e, a temperaturas elevadas, a diferen\u00e7a aumenta.<\/p>\n\n <p>A pr\u00f3pria conven\u00e7\u00e3o de nomenclatura \u00e9 enganadora. A classe 300 n\u00e3o significa que a v\u00e1lvula resista a 300 psi; trata-se de uma designa\u00e7\u00e3o, n\u00e3o de um valor de press\u00e3o. A press\u00e3o admiss\u00edvel real \u00e9 determinada pela tabela de press\u00e3o-temperatura da norma ASME B16.34 para o grupo espec\u00edfico de materiais.<\/p>\n\n <div class=\"bp-5-warning\">\n <div class=\"bp-5-icon\">\n <svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n <path d=\"M10.29 3.86 1.82 18a2 2 0 0 0 1.71 3h16.94a2 2 0 0 0 1.71-3L13.71 3.86a2 2 0 0 0-3.42 0z\" \/>\n <line x1=\"12\" y1=\"9\" x2=\"12\" y2=\"13\" \/>\n <line x1=\"12\" y1=\"17\" x2=\"12.01\" y2=\"17\" \/>\n <\/svg>\n <\/div>\n <div class=\"bp-5-content\">\n <div class=\"bp-5-headline\">Os n\u00fameros das classes correspondem a nomes, n\u00e3o a valores de press\u00e3o.<\/div>\n <div class=\"bp-5-body\">Consulte sempre a tabela de press\u00e3o e temperatura da norma B16.34 relativa ao seu grupo de materiais antes de determinar um valor nominal de press\u00e3o.<\/div>\n <\/div>\n <\/div>\n\n <h3>Normas relativas \u00e0s flanges e dimens\u00f5es \u00abface a face\u00bb<\/h3>\n\n <p>A pergunta mais pr\u00e1tica que os engenheiros fazem: \u201cA minha tubagem \u00e9 DIN. Posso aparafusar uma v\u00e1lvula ANSI?\u201d<\/p>\n\n <p>A resposta curta \u00e9, normalmente, n\u00e3o. Os tr\u00eas sistemas utilizam di\u00e2metros de c\u00edrculo de parafusos diferentes, n\u00fameros diferentes de parafusos e geometrias diferentes das faces de veda\u00e7\u00e3o. Uma flange ANSI Classe 150 n\u00e3o \u00e9 compat\u00edvel com uma flange DIN PN16, e nenhuma delas \u00e9 compat\u00edvel com uma flange JIS 10K, mesmo que o di\u00e2metro nominal do tubo seja o mesmo.<\/p>\n\n <div class=\"table-wrapper\">\n <table>\n <thead>\n <tr>\n <th>Sistema<\/th>\n <th>Norma relativa \u00e0s flanges<\/th>\n <th>Padr\u00e3o Presencial<\/th>\n <th>O padr\u00e3o de fixa\u00e7\u00e3o \u00e9 intercambi\u00e1vel?<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td>ANSI\/ASME<\/td>\n <td>ASME B16.5 (d NPS 24), B16.47 (> NPS 24)<\/td>\n <td>ASME B16.10<\/td>\n <td>N\u00e3o<\/td>\n <\/tr>\n <tr>\n <td>DIN\/EN<\/td>\n <td>EN 1092-1<\/td>\n <td>EN 558-1 (PN), EN 558-2 (Class)<\/td>\n <td>N\u00e3o (exceto flanges da classe EN 558-2 = ASME B16.10)<\/td>\n <\/tr>\n <tr>\n <td>JIS<\/td>\n <td>JIS B2220<\/td>\n <td>JIS B2002<\/td>\n <td>N\u00e3o<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n <p>H\u00e1 uma exce\u00e7\u00e3o importante: a norma EN 558-2 define as dimens\u00f5es entre faces para flanges com classifica\u00e7\u00e3o de classe, e essas dimens\u00f5es s\u00e3o id\u00eanticas \u00e0s da norma ASME B16.10. Por outras palavras, embora os padr\u00f5es de fixa\u00e7\u00e3o dos parafusos das flanges sejam diferentes, o comprimento total das v\u00e1lvulas classificadas por classe est\u00e1 harmonizado entre as normas ASME e as normas europeias. Isto significa que uma v\u00e1lvula de gaveta de Classe 150 de um fabricante americano e outra de um fabricante europeu ter\u00e3o a mesma dimens\u00e3o face a face, cabendo fisicamente no mesmo espa\u00e7o da tubagem, mesmo que as pr\u00f3prias flanges necessitem de adaptadores.<\/p>\n\n <div class=\"bp-6-exception\">\n <div class=\"bp-6-icon\">\n <svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n <path d=\"M22 11.08V12a10 10 0 1 1-5.93-9.14\" \/>\n <polyline points=\"22 4 12 14.01 9 11.01\" \/>\n <\/svg>\n <\/div>\n <div class=\"bp-6-content\">\n <div class=\"bp-6-body\"><strong>A exce\u00e7\u00e3o:<\/strong> Dimens\u00f5es \u00abface a face\u00bb da flange de conformidade com a norma EN 558-2, Classe = ASME B16.10. A sua v\u00e1lvula de gaveta Classe 150 ir\u00e1 encaixar na abertura da tubagem, independentemente de ter sido fabricada de acordo com as normas americanas ou europeias.<\/div>\n <\/div>\n <\/div>\n\n <h3>Designa\u00e7\u00f5es dos materiais e filosofia de design<\/h3>\n\n <p>Os tr\u00eas sistemas designam os seus materiais de forma diferente, mesmo quando se referem a ligas praticamente id\u00eanticas. Uma especifica\u00e7\u00e3o de aquisi\u00e7\u00e3o que confunda as designa\u00e7\u00f5es de materiais da ASTM e da EN pode resultar na entrega do material errado, e a diferen\u00e7a entre A216 WCC e 1.0619 pode ser subtil no papel, mas catastr\u00f3fica em condi\u00e7\u00f5es de utiliza\u00e7\u00e3o.<\/p>\n\n <div class=\"table-wrapper\">\n <table>\n <thead>\n <tr>\n <th>Tipo de material<\/th>\n <th>ASTM (ANSI)<\/th>\n <th>EN (DIN)<\/th>\n <th>JIS<\/th>\n <th>Aplica\u00e7\u00e3o t\u00edpica de v\u00e1lvulas<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td>Funda\u00e7\u00e3o de a\u00e7o ao carbono<\/td>\n <td>A216 WCC<\/td>\n <td>um ponto zero seis dezenove (GP240GH)<\/td>\n <td>SCPH2<\/td>\n <td>Corpos de v\u00e1lvula de uso geral, Classe 150-600<\/td>\n <\/tr>\n <tr>\n <td>Pe\u00e7a fundida em a\u00e7o inoxid\u00e1vel 316<\/td>\n <td>A351 CF8M<\/td>\n <td>1.4408 (GX5CrNiMo19-11)<\/td>\n <td>SCS14<\/td>\n <td>Utiliza\u00e7\u00e3o de produtos qu\u00edmicos corrosivos<\/td>\n <\/tr>\n <tr>\n <td>Forja em a\u00e7o inoxid\u00e1vel 316L<\/td>\n <td>A182 F316L<\/td>\n <td>1.4404 (X2CrNiMo17-12-2)<\/td>\n <td>SUSF316L<\/td>\n <td>Variante com baixas emiss\u00f5es de carbono para componentes de v\u00e1lvulas soldadas<\/td>\n <\/tr>\n <tr>\n <td>Forjamento de a\u00e7o ao carbono<\/td>\n <td>A105<\/td>\n <td>1,0460 (C22.8)<\/td>\n <td>Pequeno, \u00e9s um cobarde<\/td>\n <td>Corpos e tampas de v\u00e1lvulas de pequeno di\u00e2metro<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n <p>Para al\u00e9m das diferen\u00e7as na nomenclatura, as filosofias de conce\u00e7\u00e3o divergem: as normas ANSI d\u00e3o prioridade \u00e0 utiliza\u00e7\u00e3o em aplica\u00e7\u00f5es de petr\u00f3leo e g\u00e1s a alta press\u00e3o e alta temperatura; as normas DIN colocam \u00eanfase na engenharia de precis\u00e3o e na compatibilidade com os sistemas europeus; as normas JIS tendem para uma ampla aplicabilidade, com \u00eanfase na resist\u00eancia \u00e0 corros\u00e3o em ambientes mar\u00edtimos. Estas diferen\u00e7as filos\u00f3ficas determinam tudo, desde a escolha padr\u00e3o dos materiais at\u00e9 \u00e0s toler\u00e2ncias de fabrico aceit\u00e1veis.<\/p>\n\n <div class=\"bp-7-philosophy\">\n <div class=\"bp-7-card bp-7-card-ansi\">\n <div class=\"bp-7-card-header\">\n <svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n <path d=\"M4 15s1-1 4-1 5 2 8 2 4-1 4-1V3s-1 1-4 1-5-2-8-2-4 1-4 1z\" \/>\n <line x1=\"4\" y1=\"22\" x2=\"4\" y2=\"15\" \/>\n <\/svg>\n ANSI \u00b7 Am\u00e9ricas\n <\/div>\n <div class=\"bp-7-card-body\">Servi\u00e7os de petr\u00f3leo e g\u00e1s em condi\u00e7\u00f5es de alta press\u00e3o e alta temperatura como prioridade de conce\u00e7\u00e3o<\/div>\n <\/div>\n <div class=\"bp-7-card bp-7-card-din\">\n <div class=\"bp-7-card-header\">\n <svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n <rect x=\"4\" y=\"4\" width=\"16\" height=\"16\" rx=\"2\" ry=\"2\" \/>\n <rect x=\"9\" y=\"9\" width=\"6\" height=\"6\" \/>\n <line x1=\"9\" y1=\"1\" x2=\"9\" y2=\"4\" \/>\n <line x1=\"15\" y1=\"1\" x2=\"15\" y2=\"4\" \/>\n <line x1=\"9\" y1=\"20\" x2=\"9\" y2=\"23\" \/>\n <line x1=\"15\" y1=\"20\" x2=\"15\" y2=\"23\" \/>\n <line x1=\"20\" y1=\"9\" x2=\"23\" y2=\"9\" \/>\n <line x1=\"20\" y1=\"14\" x2=\"23\" y2=\"14\" \/>\n <line x1=\"1\" y1=\"9\" x2=\"4\" y2=\"9\" \/>\n <line x1=\"1\" y1=\"14\" x2=\"4\" y2=\"14\" \/>\n <\/svg>\n DIN \u00b7 Europa\n <\/div>\n <div class=\"bp-7-card-body\">Foco na engenharia de precis\u00e3o e na compatibilidade com os sistemas europeus<\/div>\n <\/div>\n <div class=\"bp-7-card bp-7-card-jis\">\n <div class=\"bp-7-card-header\">\n <svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n <path d=\"M12 2a8 8 0 0 0-8 8c0 5.4 6.5 11.2 7.5 12a1 1 0 0 0 1 0c1-1 7.5-6.6 7.5-12a8 8 0 0 0-8-8z\" \/>\n <\/svg>\n JIS \u00b7 \u00c1sia\n <\/div>\n <div class=\"bp-7-card-body\">Ampla aplicabilidade, com \u00eanfase na resist\u00eancia \u00e0 corros\u00e3o em ambientes marinhos<\/div>\n <\/div>\n <\/div>\n\n <hr>\n\n <h2>Testes, certifica\u00e7\u00e3o e a lista de verifica\u00e7\u00e3o para a aquisi\u00e7\u00e3o<\/h2>\n\n <p>Saber quais s\u00e3o as normas existentes \u00e9 apenas metade do valor. A outra metade consiste em saber como verificar se uma v\u00e1lvula cumpre efetivamente essas normas. Esta sec\u00e7\u00e3o traduz o conhecimento das normas num quadro pr\u00e1tico de verifica\u00e7\u00e3o para o processo de aquisi\u00e7\u00e3o.<\/p>\n\n <h3>Resumo das normas fundamentais de ensaio<\/h3>\n\n <div class=\"table-wrapper\">\n <table>\n <thead>\n <tr>\n <th>Norma de ensaio<\/th>\n <th>Tipo de teste<\/th>\n <th>Principais crit\u00e9rios de aceita\u00e7\u00e3o<\/th>\n <th>Quando o especificar<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td>API 598<\/td>\n <td>Teste da concha, teste do banco, teste do banco traseiro<\/td>\n <td>Carcassa: 1,5\u00d7 a press\u00e3o m\u00e1xima admiss\u00edvel; Assento: 1,1\u00d7 a press\u00e3o m\u00e1xima admiss\u00edvel<\/td>\n <td>Todas as ordens de compra de v\u00e1lvulas seguem o padr\u00e3o do setor<\/td>\n <\/tr>\n <tr>\n <td>Norma Internacional ISO 5208<\/td>\n <td>Resist\u00eancia da carca\u00e7a, fuga no assento<\/td>\n <td>Da Classe A (sem fugas vis\u00edveis) \u00e0 Classe G (fuga admiss\u00edvel por DN)<\/td>\n <td>Projetos europeus; cada vez mais utilizados em conjunto com a norma API 598<\/td>\n <\/tr>\n <tr>\n <td>MSS SP-61<\/td>\n <td>Ensaios da carca\u00e7a e do assento<\/td>\n <td>Semelhante \u00e0 norma API 598, frequentemente utilizada para v\u00e1lvulas n\u00e3o conformes com a API<\/td>\n <td>Servi\u00e7os de abastecimento de \u00e1gua e servi\u00e7os industriais em geral<\/td>\n <\/tr>\n <tr>\n <td>FCI 70-2<\/td>\n <td>Fuga na sede da v\u00e1lvula de controlo<\/td>\n <td>Classe I (n\u00e3o \u00e9 necess\u00e1rio realizar testes) at\u00e9 Classe VI (fuga praticamente nula)<\/td>\n <td>Qualquer compra que envolva v\u00e1lvulas de controlo ou v\u00e1lvulas moduladoras automatizadas<\/td>\n <\/tr>\n <tr>\n <td>ISO 15848-1<\/td>\n <td>Emiss\u00f5es fugitivas (eixo + vedantes da carro\u00e7aria)<\/td>\n <td>Classe de estanqueidade A\/B\/C \u00d7 Classe de temperatura \u00d7 Classe de resist\u00eancia<\/td>\n <td>Conformidade ambiental, servi\u00e7os relacionados com COV e qualquer projeto com requisitos de monitoriza\u00e7\u00e3o de emiss\u00f5es<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n <p>Uma especifica\u00e7\u00e3o de aquisi\u00e7\u00e3o de v\u00e1lvulas devidamente redigida deve fazer refer\u00eancia, no m\u00ednimo, a: uma norma de conce\u00e7\u00e3o (que indica ao fabricante como a fabricar), uma norma de inspe\u00e7\u00e3o (que indica ao inspetor como a verificar), uma norma de flanges (que garante que se adapta \u00e0 tubagem) e uma especifica\u00e7\u00e3o de materiais (que define de que \u00e9 feita). A aus\u00eancia de qualquer uma destas quatro normas significa que o inspetor n\u00e3o disp\u00f5e de uma base completa para a aceita\u00e7\u00e3o ou rejei\u00e7\u00e3o.<\/p>\n\n <div class=\"bp-8-checklist\">\n <div class=\"bp-8-item\">\n <div class=\"bp-8-check\">\n <svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n <path d=\"M22 11.08V12a10 10 0 1 1-5.93-9.14\" \/>\n <polyline points=\"22 4 12 14.01 9 11.01\" \/>\n <\/svg>\n <\/div>\n <span class=\"bp-8-label\"><strong>1 norma de conce\u00e7\u00e3o<\/strong> (como constru\u00ed-lo)<\/span>\n <\/div>\n <div class=\"bp-8-item\">\n <div class=\"bp-8-check\">\n <svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n <path d=\"M22 11.08V12a10 10 0 1 1-5.93-9.14\" \/>\n <polyline points=\"22 4 12 14.01 9 11.01\" \/>\n <\/svg>\n <\/div>\n <span class=\"bp-8-label\"><strong>1 norma de inspe\u00e7\u00e3o<\/strong> (como verificar isso)<\/span>\n <\/div>\n <div class=\"bp-8-item\">\n <div class=\"bp-8-check\">\n <svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n <path d=\"M22 11.08V12a10 10 0 1 1-5.93-9.14\" \/>\n <polyline points=\"22 4 12 14.01 9 11.01\" \/>\n <\/svg>\n <\/div>\n <span class=\"bp-8-label\"><strong>1 norma relativa a flanges<\/strong> (ser\u00e1 que cabe?)<\/span>\n <\/div>\n <div class=\"bp-8-item\">\n <div class=\"bp-8-check\">\n <svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n <path d=\"M22 11.08V12a10 10 0 1 1-5.93-9.14\" \/>\n <polyline points=\"22 4 12 14.01 9 11.01\" \/>\n <\/svg>\n <\/div>\n <span class=\"bp-8-label\"><strong>1 especifica\u00e7\u00e3o de material<\/strong> (de que \u00e9 feito)<\/span>\n <\/div>\n <\/div>\n\n <h3>Percursos comuns de certifica\u00e7\u00e3o<\/h3>\n\n <div class=\"table-wrapper\">\n <table>\n <thead>\n <tr>\n <th>Certifica\u00e7\u00e3o<\/th>\n <th>Regi\u00e3o \/ \u00c2mbito<\/th>\n <th>O que verifica<\/th>\n <th>Requisitos t\u00edpicos<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td>Marca\u00e7\u00e3o CE (PED 2014\/68\/UE)<\/td>\n <td>Uni\u00e3o Europeia<\/td>\n <td>Seguran\u00e7a dos equipamentos sob press\u00e3o<\/td>\n <td>Concep\u00e7\u00e3o de acordo com uma norma harmonizada + avalia\u00e7\u00e3o por um organismo notificado para a Categoria II+<\/td>\n <\/tr>\n <tr>\n <td>ATEX (2014\/34\/UE)<\/td>\n <td>Atmosferas explosivas na UE<\/td>\n <td>Seguran\u00e7a dos equipamentos em ambientes potencialmente explosivos<\/td>\n <td>Avalia\u00e7\u00e3o do risco de igni\u00e7\u00e3o, conformidade com a norma EN 13463 \/ s\u00e9rie IEC 60079<\/td>\n <\/tr>\n <tr>\n <td>SIL (IEC 61508)<\/td>\n <td>Seguran\u00e7a funcional global<\/td>\n <td>N\u00edvel de integridade de seguran\u00e7a para fun\u00e7\u00f5es das v\u00e1lvulas relacionadas com a seguran\u00e7a<\/td>\n <td>Avalia\u00e7\u00e3o independente das taxas de falha e da cobertura de diagn\u00f3stico<\/td>\n <\/tr>\n <tr>\n <td>NACE MR0175 \/ ISO 15156<\/td>\n <td>Servi\u00e7o global de assist\u00eancia t\u00e9cnica<\/td>\n <td>Resist\u00eancia dos materiais \u00e0 fissura\u00e7\u00e3o por tens\u00e3o induzida por sulfuretos em ambientes que cont\u00eam H\u2082S<\/td>\n <td>Limites de dureza do material, requisitos de tratamento t\u00e9rmico, documenta\u00e7\u00e3o de conformidade<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n <p>Ao analisar a p\u00e1gina de certifica\u00e7\u00f5es de um fabricante, procure uma cobertura multirregional e multisectorial, pois isso indica uma gest\u00e3o de qualidade aprofundada, que vai al\u00e9m de um simples cumprimento de requisitos. A VINCER, por exemplo, possui certifica\u00e7\u00f5es CE, ISO 9001:2015, FDA, RoHS e SIL, abrangendo requisitos de seguran\u00e7a europeus, normas sanit\u00e1rias americanas e seguran\u00e7a funcional global a partir de uma \u00fanica fonte de fabrico. Esta amplitude reduz a carga de verifica\u00e7\u00e3o para as equipas de aquisi\u00e7\u00e3o que gerem projetos em v\u00e1rias jurisdi\u00e7\u00f5es regulamentares.<\/p>\n\n<img decoding=\"async\" src=\"https:\/\/www.vincervalve.com\/wp-content\/uploads\/2026\/06\/Valve-Standards-2.webp\" \n alt=\"Normas relativas \u00e0s v\u00e1lvulas (2)\" \n style=\"width: 512px; height: 384px; max-width: 100%; object-fit: cover; border-radius: 12px; margin: 30px auto; display: block; box-shadow: 10px 10px 60px 0px rgba(210, 221, 224, 0.35); transition: all 0.3s ease; cursor: pointer;\"\n onmouseover=\"this.style.transform='translateY(-5px) scale(1.03)'; this.style.boxShadow='15px 25px 80px 0px rgba(210, 221, 224, 0.45)';\"\n onmouseout=\"this.style.transform='translateY(0) scale(1)'; this.style.boxShadow='10px 10px 60px 0px rgba(210, 221, 224, 0.35)';\">\n\n <hr>\n\n <h2>Resumo das normas relativas \u00e0s v\u00e1lvulas: refer\u00eancia r\u00e1pida por setor<\/h2>\n\n <p>Se houver uma coisa que deva reter deste guia, que seja esta tabela. Ela relaciona sete setores principais com as normas mais importantes \u2014 aquelas que deve verificar em primeiro lugar ao iniciar um novo projeto ou ao analisar as especifica\u00e7\u00f5es de uma v\u00e1lvula.<\/p>\n\n <div class=\"table-wrapper\">\n <table>\n <thead>\n <tr>\n <th>Ind\u00fastria<\/th>\n <th>Normas de conce\u00e7\u00e3o fundamentais<\/th>\n <th>Norma de ensaio do n\u00facleo<\/th>\n <th>Requisitos Especiais<\/th>\n <th>Tipos de v\u00e1lvulas mais comuns<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td>Petr\u00f3leo e G\u00e1s<\/td>\n <td>API 6D, API 600, API 608<\/td>\n <td>API 598<\/td>\n <td>NACE MR0175 (servi\u00e7o em condi\u00e7\u00f5es \u00e1cidas), API 607 (resist\u00eancia ao fogo)<\/td>\n <td>V\u00e1lvulas de esfera, de compra, de reten\u00e7\u00e3o e de tamp\u00e3o<\/td>\n <\/tr>\n <tr>\n <td>Processamento Qu\u00edmico<\/td>\n <td>ASME B16.34, API 600\/609<\/td>\n <td>API 598, ISO 15848-1<\/td>\n <td>NACE MR0175 (meios \u00e1cidos), revestido a PTFE\/PFA para produtos qu\u00edmicos agressivos<\/td>\n <td>V\u00e1lvulas de esfera, borboleta, globo e de tamp\u00e3o<\/td>\n <\/tr>\n <tr>\n <td>\u00c1gua e \u00e1guas residuais<\/td>\n <td>AWWA C500 (v\u00e1lvula de guilhotina), AWWA C504 (v\u00e1lvula borboleta)<\/td>\n <td>ISO 5208, MSS SP-61<\/td>\n <td>NSF\/ANSI 61 (contacto com \u00e1gua pot\u00e1vel), revestimentos resistentes \u00e0 corros\u00e3o<\/td>\n <td>V\u00e1lvulas de gaveta, de borboleta, de reten\u00e7\u00e3o e de l\u00e2mina<\/td>\n <\/tr>\n <tr>\n <td>AVAC<\/td>\n <td>ASME B16.34, MSS SP-67 (v\u00e1lvula borboleta)<\/td>\n <td>API 598, FCI 70-2 (controlo)<\/td>\n <td>Classifica\u00e7\u00e3o de sedes de baixo fuga para a efici\u00eancia energ\u00e9tica<\/td>\n <td>V\u00e1lvulas borboleta, v\u00e1lvulas de controlo esf\u00e9ricas, v\u00e1lvulas de esfera<\/td>\n <\/tr>\n <tr>\n <td>Gera\u00e7\u00e3o de Energia<\/td>\n <td>ASME B16.34, ASME B31.1 (tubagens de energia)<\/td>\n <td>API 598<\/td>\n <td>Ligas resistentes a altas temperaturas para vapor sobreaquecido, requisitos de ensaios n\u00e3o destrutivos<\/td>\n <td>V\u00e1lvulas de gaveta, esf\u00e9ricas, de reten\u00e7\u00e3o e de controlo<\/td>\n <\/tr>\n <tr>\n <td>Criog\u00e9nico \/ Baixa temperatura<\/td>\n <td>BS 6364, MSS SP-134<\/td>\n <td>API 598 com extens\u00e3o criog\u00e9nica<\/td>\n <td>Cap\u00f4 alargado para instala\u00e7\u00e3o em c\u00e2mara fria, desengordurado para utiliza\u00e7\u00e3o com oxig\u00e9nio<\/td>\n <td>V\u00e1lvulas de esfera, de gaveta, borboleta e de globo<\/td>\n <\/tr>\n <tr>\n <td>Alimenta\u00e7\u00e3o e Bebidas<\/td>\n <td>Normas Sanit\u00e1rias 3-A, ASME BPE<\/td>\n <td>Conformidade com o regulamento 21 CFR da FDA<\/td>\n <td>Juntas de qualidade alimentar (EPDM, silicone), design sem fendas, compatibilidade com CIP\/SIP<\/td>\n <td>V\u00e1lvulas de esfera, de borboleta e de diafragma<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n <p>O panorama das normas muda lentamente \u2014 os comit\u00e9s de normaliza\u00e7\u00e3o trabalham em anos, n\u00e3o em meses \u2014, mas muda mesmo. S\u00f3 em 2025, a norma ASME B16.34 recebeu uma nova edi\u00e7\u00e3o (maio), as normas ISO 14313 e ISO 14723 publicaram ambas a sua terceira edi\u00e7\u00e3o (junho) e a norma API 6D recebeu o seu terceiro aditamento. \u00c9 importante manter-se atualizado, especialmente no caso de projetos que especifiquem v\u00e1lvulas de acordo com as edi\u00e7\u00f5es mais recentes das normas.<\/p>\n\n <div class=\"bp-9-updates\">\n <div class=\"bp-9-update\">\n <span class=\"bp-9-month\">Maio de 2025<\/span>\n <span class=\"bp-9-standard\">ASME B16.34<\/span>\n <span class=\"bp-9-action\">Nova edi\u00e7\u00e3o<\/span>\n <\/div>\n <div class=\"bp-9-update\">\n <span class=\"bp-9-month\">Junho de 2025<\/span>\n <span class=\"bp-9-standard\">ISO 14313 e 14723<\/span>\n <span class=\"bp-9-action\">3.\u00aa edi\u00e7\u00e3o publicada<\/span>\n <\/div>\n <div class=\"bp-9-update\">\n <span class=\"bp-9-month\">2025<\/span>\n <span class=\"bp-9-standard\">API 6D<\/span>\n <span class=\"bp-9-action\">Adenda 3<\/span>\n <\/div>\n <\/div>\n\n <hr>\n\n <h2 style=\"font-size:1.125rem\">Refer\u00eancias<\/h2>\n <ol style=\"font-size:0.875rem;color:var(--color-text-body)\">\n <li>Instituto Americano do Petr\u00f3leo. \u201cEspecifica\u00e7\u00e3o API 6D para v\u00e1lvulas.\u201d 25.\u00aa edi\u00e7\u00e3o, 2021. <a href=\"https:\/\/www.api.org\/products-and-services\/standards\">https:\/\/www.api.org\/products-and-services\/standards<\/a><\/li>\n <li>Instituto Americano do Petr\u00f3leo. \u201cAPI 598 \u2014 Inspe\u00e7\u00e3o e Ensaio de V\u00e1lvulas\u201d. 10.\u00aa edi\u00e7\u00e3o, 2016 (reafirmada em 2021). <a href=\"https:\/\/www.api.org\/products-and-services\/standards\">https:\/\/www.api.org\/products-and-services\/standards<\/a><\/li>\n <li>ASME. \u201cASME B16.34 V\u00e1lvulas com extremidades flangeadas, roscadas e soldadas\u201d. Edi\u00e7\u00e3o de 2025. <a href=\"https:\/\/www.asme.org\/codes-standards\">https:\/\/www.asme.org\/codes-standards<\/a><\/li>\n <li>Organiza\u00e7\u00e3o Internacional de Normaliza\u00e7\u00e3o. \u201cISO 14313:2025 Sistemas de transporte por condutas \u2014 V\u00e1lvulas para condutas\u201d. 3.\u00aa edi\u00e7\u00e3o, junho de 2025. <a href=\"https:\/\/www.iso.org\/standard\/86822.html\">https:\/\/www.iso.org\/standard\/86822.html<\/a><\/li>\n <li>Organiza\u00e7\u00e3o Internacional de Normaliza\u00e7\u00e3o. \u201cISO 14723:2025 V\u00e1lvulas para condutas submarinas\u201d. 3.\u00aa edi\u00e7\u00e3o, 2025. <a href=\"https:\/\/www.iso.org\/standard\/86821.html\">https:\/\/www.iso.org\/standard\/86821.html<\/a><\/li>\n <li>Valve World Americas. \u201cO m\u00ednimo que deve saber sobre as normas da Valve.\u201d <a href=\"https:\/\/valve-world-americas.com\/the-minimum-you-should-know-about-valve-standards\/\">https:\/\/valve-world-americas.com\/the-minimum-you-should-know-about-valve-standards\/<\/a><\/li>\n <li>Revista Valve. \u201cA jogar o jogo dos padr\u00f5es da Valve.\u201d <a href=\"https:\/\/www.valvemagazine.com\/articles\/playing-the-valve-standards-game\">https:\/\/www.valvemagazine.com\/articles\/playing-the-valve-standards-game<\/a><\/li>\n <li>VINCER Valve. \u201cCertifica\u00e7\u00f5es.\u201d <a href=\"https:\/\/www.vincervalve.com\/pt\/certifications\/\">https:\/\/www.vincervalve.com\/certifications\/<\/a><\/li>\n <li>VINCER Valve. \u201cP\u00e1gina inicial.\u201d <a href=\"https:\/\/www.vincervalve.com\/pt\/\">https:\/\/www.vincervalve.com\/<\/a><\/li>\n <\/ol>\n\n <\/article>\n\n<\/body>\n\n<\/html>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Valve Standards Explained A Practical Guide to API, ASME, ISO, DIN & JIS If you have ever opened a valve procurement specification and felt lost in a sea of letters and numbers API 6D, ASME B16.34, ISO 14313, EN 558, JIS B2071 you are not alone. The global valve standards landscape is sprawling, overlapping, and […]<\/p>\n","protected":false},"author":4,"featured_media":25703,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"Valve Standards: A Guide to International Compliance","_seopress_titles_desc":"Understanding valve standards is critical for industrial success. Learn how international compliance impacts valve performance and quality. 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