{"id":100096,"date":"2026-02-15T20:16:23","date_gmt":"2026-02-15T20:16:23","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&#038;p=100096"},"modified":"2026-05-23T20:57:50","modified_gmt":"2026-05-23T20:57:50","slug":"flange-gasket-calculator","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/te\/calculators\/flange-gasket-calculator\/","title":{"rendered":"Flange Gasket Calculator | Gasket Sizing | Free Online Tool"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"WebApplication\",\"name\":\"Flange Gasket Calculator\",\"description\":\"Free flange gasket sizing calculator for ASME B16.5 flanges.\",\"url\":\"https:\/\/vibromera.eu\/calculators\/flange-gasket-calculator\/\",\"applicationCategory\":\"Engineering Calculator\",\"operatingSystem\":\"Any\",\"offers\":{\"@type\":\"Offer\",\"price\":\"0\",\"priceCurrency\":\"EUR\"},\"creator\":{\"@type\":\"Organization\",\"name\":\"Vibromera\",\"url\":\"https:\/\/vibromera.eu\/\"},\"datePublished\":\"2024-01-01\",\"dateModified\":\"2025-06-15\",\"inLanguage\":\"en\",\"isAccessibleForFree\":true}<\/script>\n\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[\n{\"@type\":\"Question\",\"name\":\"How do I select a gasket for a flanged joint?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Select based on: flange rating (class 150\/300\/600 etc.), pipe size (NPS), service conditions (temperature, pressure, media), and gasket type (spiral wound, PTFE, rubber, metallic). ASME B16.20 defines standard gasket dimensions.\"}},\n{\"@type\":\"Question\",\"name\":\"What is the difference between raised face and ring-type joint flanges?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Raised face (RF) flanges use flat or spiral wound gaskets seated on a raised surface. Ring-type joint (RTJ) flanges use metallic ring gaskets in a machined groove. RTJ provides superior sealing at higher pressures.\"}},\n{\"@type\":\"Question\",\"name\":\"What is gasket seating stress?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Seating stress (y) is the minimum bolt stress required to initially seat the gasket and create a seal. It varies by gasket type: rubber \u2248 1.4 MPa, spiral wound \u2248 69 MPa, solid metal \u2248 180 MPa.\"}},\n{\"@type\":\"Question\",\"name\":\"What bolt torque is needed for a flanged joint?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Bolt torque depends on bolt size, number of bolts, gasket type, and required seating stress. T = K \u00d7 d \u00d7 F\/n, where K is nut factor (\u22480.2 for lubricated), d is bolt diameter, F is total bolt load, n is number of bolts.\"}},\n{\"@type\":\"Question\",\"name\":\"When should I use a spiral wound gasket?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Spiral wound gaskets (ASME B16.20) are the most versatile choice for raised face flanges in process piping. Suitable for temperatures from -200\u00b0C to 600\u00b0C (depending on filler), pressures up to Class 2500, and most chemical services.\"}}\n]}<\/script>\n\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vibromera.eu\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Calculators\",\"item\":\"https:\/\/vibromera.eu\/calculators\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Flange Gasket Calculator\",\"item\":\"https:\/\/vibromera.eu\/calculators\/flange-gasket-calculator\/\"}]}<\/script>\n\n<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n\n<link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\n\n<link 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print{.vc-section-body{max-height:none!important}.vc-faq-a{max-height:none!important}.vc-results{max-height:none!important;padding:24px!important}.vc-copy-btn,.vc-section-chevron,.vc-faq-chevron,.vc-presets,.vc-promo{display:none!important}}\n<\/style>\n\n<div class=\"vc-calculator\" id=\"vc-flange-gasket\">\n\n<header class=\"vc-header\">\n    <p class=\"vc-header-eyebrow\">Free Engineering Tool \u2014 #153<\/p>\n    <h1 class=\"vc-header-title\">Flange Gasket Calculator<\/h1>\n    <p class=\"vc-header-subtitle\">Select flange class, pipe size, and gasket type to get gasket dimensions (ID, OD, thickness) and bolt load requirements.<\/p>\n    <div class=\"vc-badges\"><span class=\"vc-badge\">ASME B16.5<\/span><span class=\"vc-badge\">ASME B16.20<\/span><span class=\"vc-badge\">Class 150\u2013600<\/span><\/div>\n<\/header>\n\n<div class=\"vc-card\">\n    <form class=\"vc-form\" id=\"vc-form\" autocomplete=\"off\">\n        <div class=\"vc-form-grid\">\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-nps\">Pipe Size (NPS)<\/label>\n                <select class=\"vc-select\" id=\"vc-nps\">\n                    <option value=\"0.5\">\u00bd\u2033<\/option><option value=\"0.75\">\u00be\u2033<\/option><option value=\"1\">1\u2033<\/option>\n                    <option value=\"1.5\">1\u00bd\u2033<\/option><option value=\"2\" selected>2\u2033<\/option><option value=\"3\">3\u2033<\/option>\n                    <option value=\"4\">4\u2033<\/option><option value=\"6\">6\u2033<\/option><option value=\"8\">8\u2033<\/option>\n                    <option value=\"10\">10\u2033<\/option><option value=\"12\">12\u2033<\/option><option value=\"16\">16\u2033<\/option>\n                    <option value=\"20\">20\u2033<\/option><option value=\"24\">24\u2033<\/option>\n                <\/select>\n            <\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-class\">Flange Class<\/label>\n                <select class=\"vc-select\" id=\"vc-class\">\n                    <option value=\"150\" selected>Class 150<\/option><option value=\"300\">Class 300<\/option><option value=\"600\">Class 600<\/option>\n                <\/select>\n            <\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-gtype\">Gasket Type<\/label>\n                <select class=\"vc-select\" id=\"vc-gtype\">\n                    <option value=\"sw\" selected>Spiral Wound (SW)<\/option>\n                    <option value=\"rf\">Flat Sheet (PTFE\/Rubber)<\/option>\n                <\/select>\n            <\/div>\n        <\/div>\n        <div class=\"vc-presets\">\n            <div class=\"vc-presets-label\">Common configurations<\/div>\n            <button type=\"button\" class=\"vc-preset-btn\" data-n=\"2\" data-c=\"150\" data-g=\"sw\">2\u2033 Cl.150 SW<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-n=\"4\" data-c=\"150\" data-g=\"sw\">4\u2033 Cl.150 SW<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-n=\"6\" data-c=\"300\" data-g=\"sw\">6\u2033 Cl.300 SW<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-n=\"8\" data-c=\"150\" data-g=\"sw\">8\u2033 Cl.150 SW<\/button>\n        <\/div>\n    <\/form>\n    <div class=\"vc-results vc-visible\" id=\"vc-results\">\n        <div class=\"vc-results-head\"><h2 class=\"vc-results-title\">Gasket Data<\/h2><button type=\"button\" class=\"vc-copy-btn\" id=\"vc-copy-btn\"><svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\"\/><path d=\"M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1\"\/><\/svg> Copy<\/button><\/div>\n        <div class=\"vc-result-grid\">\n            <div class=\"vc-rcard vc-rcard-primary\"><div class=\"vc-rcard-label\">Gasket Description<\/div><div class=\"vc-rcard-value\" id=\"vc-r-desc\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Gasket ID<\/div><div class=\"vc-rcard-value\" id=\"vc-r-gid\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Gasket OD<\/div><div class=\"vc-rcard-value\" id=\"vc-r-god\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Thickness<\/div><div class=\"vc-rcard-value\" id=\"vc-r-thick\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Number of Bolts<\/div><div class=\"vc-rcard-value\" id=\"vc-r-bolts\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Bolt Diameter<\/div><div class=\"vc-rcard-value\" id=\"vc-r-bdia\">\u2014<\/div><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<div class=\"vc-section vc-open\" id=\"vc-sec-theory\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"true\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udcd8<\/span><span class=\"vc-section-title\">Theory &amp; Reference<\/span><\/span><svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button>\n    <div class=\"vc-section-body\"><div class=\"vc-section-inner vc-theory\">\n        <h3>Gasket Seating Stress<\/h3>\n        <div class=\"vc-formula-box\" id=\"vc-katex-1\"><\/div>\n        <ul>\n            <li><strong>W<sub>m2<\/sub><\/strong> \u2014 minimum bolt load for gasket seating<\/li>\n            <li><strong>y<\/strong> \u2014 gasket seating stress (varies by type)<\/li>\n            <li><strong>A<sub>g<\/sub><\/strong> \u2014 gasket contact area<\/li>\n        <\/ul>\n        <h3>Gasket Factors<\/h3>\n        <table class=\"vc-table\">\n            <thead><tr><th>Gasket Type<\/th><th>m factor<\/th><th>y (MPa)<\/th><\/tr><\/thead>\n            <tbody>\n                <tr><td>Rubber sheet (1.6 mm)<\/td><td>0.50<\/td><td>0<\/td><\/tr>\n                <tr><td>PTFE sheet<\/td><td>2.00<\/td><td>6.9<\/td><\/tr>\n                <tr><td>Spiral wound + graphite<\/td><td>2.50<\/td><td>68.9<\/td><\/tr>\n                <tr><td>Spiral wound + PTFE<\/td><td>2.50<\/td><td>68.9<\/td><\/tr>\n                <tr><td>Metal ring (soft iron)<\/td><td>5.50<\/td><td>124.1<\/td><\/tr>\n            <\/tbody>\n        <\/table>\n        <div class=\"vc-warning-box\"><p style=\"margin:0;font-size:14px;color:var(--vc-ink-secondary);\"><strong>\u26a0\ufe0f Note:<\/strong> This is a reference tool for standard gasket dimensions. For critical applications, perform full ASME PCC-1 bolt load calculations and verify with gasket manufacturer data.<\/p><\/div>\n    <\/div><\/div>\n<\/div>\n\n<div class=\"vc-section\" id=\"vc-sec-related\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udd17<\/span><span class=\"vc-section-title\">Related Calculators<\/span><\/span><svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button>\n    <div class=\"vc-section-body\"><div class=\"vc-section-inner\"><div class=\"vc-related\">\n        <a class=\"vc-related-link\" href=\"\/calculators\/pipe-wall-thickness-pressure\/\">Pipe Wall Thickness<\/a>\n        <a class=\"vc-related-link\" href=\"\/calculators\/steel-pipe-dimensions-iso4200\/\">Pipe Dimensions ISO 4200<\/a>\n        <a class=\"vc-related-link\" href=\"\/calculators\/pipe-thread-converter\/\">Pipe Thread Converter<\/a>\n    <\/div><\/div><\/div>\n<\/div>\n\n<div class=\"vc-section\" id=\"vc-sec-faq\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\u2753<\/span><span class=\"vc-section-title\">Frequently Asked Questions<\/span><\/span><svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button>\n    <div class=\"vc-section-body\"><div class=\"vc-section-inner\"><div class=\"vc-faq-list\" id=\"vc-faq-list\"><\/div><\/div><\/div>\n<\/div>\n\n<div class=\"vc-promo\"><div class=\"vc-promo-text\"><strong>Vibromera \u2014 Portable Balancing &amp; Vibration Analysis<\/strong><br>Professional instruments. Used in 50+ countries.<\/div><a class=\"vc-promo-link\" href=\"https:\/\/vibromera.eu\/\" target=\"_blank\" rel=\"noopener\">Learn More<\/a><\/div>\n<footer class=\"vc-footer\"><p>\u00a9 2024\u20132025 <a href=\"https:\/\/vibromera.eu\/\">Vibromera<\/a> \u2014 Engineering Calculators<\/p><p style=\"font-size:12px;margin-top:4px;\">Flange gasket sizing. Last updated: June 2025<\/p><div class=\"vc-footer-links\"><a href=\"\/calculators\/engineering-calculators\/\">All Calculators<\/a><a href=\"https:\/\/vibromera.eu\/contacts\/\">Contact<\/a><\/div><\/footer>\n<\/div>\n\n<script src=\"https:\/\/cdn.jsdelivr.net\/npm\/katex@0.16.11\/dist\/katex.min.js\"><\/script>\n<script>\n(function(){\n    'use strict';\n    function $(id){return document.getElementById(id)}\n    \/\/ Gasket DB: NPS \u2192 { class \u2192 { gid, god, bolts, bdia } } (mm, ASME B16.20 spiral wound for RF flanges)\n    var DB={\n        '0.5':{150:{gid:21.3,god:34.8,bolts:4,bdia:'1\/2\u2033'},300:{gid:21.3,god:34.8,bolts:4,bdia:'1\/2\u2033'}},\n        '0.75':{150:{gid:26.7,god:42.9,bolts:4,bdia:'1\/2\u2033'},300:{gid:26.7,god:42.9,bolts:4,bdia:'5\/8\u2033'}},\n        '1':{150:{gid:33.4,god:50.8,bolts:4,bdia:'1\/2\u2033'},300:{gid:33.4,god:50.8,bolts:4,bdia:'5\/8\u2033'}},\n        '1.5':{150:{gid:48.3,god:69.9,bolts:4,bdia:'1\/2\u2033'},300:{gid:48.3,god:69.9,bolts:4,bdia:'3\/4\u2033'}},\n        '2':{150:{gid:60.3,god:82.6,bolts:4,bdia:'5\/8\u2033'},300:{gid:60.3,god:82.6,bolts:8,bdia:'5\/8\u2033'},600:{gid:60.3,god:82.6,bolts:8,bdia:'3\/4\u2033'}},\n        '3':{150:{gid:88.9,god:114.3,bolts:4,bdia:'5\/8\u2033'},300:{gid:88.9,god:114.3,bolts:8,bdia:'3\/4\u2033'},600:{gid:88.9,god:114.3,bolts:8,bdia:'3\/4\u2033'}},\n        '4':{150:{gid:114.3,god:139.7,bolts:8,bdia:'5\/8\u2033'},300:{gid:114.3,god:139.7,bolts:8,bdia:'3\/4\u2033'},600:{gid:114.3,god:139.7,bolts:8,bdia:'7\/8\u2033'}},\n        '6':{150:{gid:168.3,god:196.9,bolts:8,bdia:'3\/4\u2033'},300:{gid:168.3,god:196.9,bolts:12,bdia:'3\/4\u2033'},600:{gid:168.3,god:196.9,bolts:12,bdia:'7\/8\u2033'}},\n        '8':{150:{gid:219.1,god:247.7,bolts:8,bdia:'3\/4\u2033'},300:{gid:219.1,god:247.7,bolts:12,bdia:'7\/8\u2033'},600:{gid:219.1,god:247.7,bolts:12,bdia:'1\u2033'}},\n        '10':{150:{gid:273.1,god:304.8,bolts:12,bdia:'7\/8\u2033'},300:{gid:273.1,god:304.8,bolts:16,bdia:'1\u2033'},600:{gid:273.1,god:304.8,bolts:16,bdia:'1\u215b\u2033'}},\n        '12':{150:{gid:323.9,god:358.8,bolts:12,bdia:'7\/8\u2033'},300:{gid:323.9,god:358.8,bolts:16,bdia:'1\u215b\u2033'},600:{gid:323.9,god:358.8,bolts:20,bdia:'1\u00bc\u2033'}},\n        '16':{150:{gid:406.4,god:447.7,bolts:16,bdia:'1\u2033'},300:{gid:406.4,god:447.7,bolts:20,bdia:'1\u00bc\u2033'},600:{gid:406.4,god:447.7,bolts:20,bdia:'1\u00bd\u2033'}},\n        '20':{150:{gid:508.0,god:549.3,bolts:20,bdia:'1\u2033'},300:{gid:508.0,god:549.3,bolts:24,bdia:'1\u00bc\u2033'},600:{gid:508.0,god:549.3,bolts:24,bdia:'1\u00bd\u2033'}},\n        '24':{150:{gid:610.0,god:654.1,bolts:20,bdia:'1\u215b\u2033'},300:{gid:610.0,god:654.1,bolts:24,bdia:'1\u00bd\u2033'},600:{gid:610.0,god:654.1,bolts:24,bdia:'1\u00be\u2033'}}\n    };\n\n    function calculate(){\n        var nps=$('vc-nps').value;var cls=$('vc-class').value;var gtype=$('vc-gtype').value;\n        var d=DB[nps];if(!d)return;var f=d[cls];if(!f){f=d[150]}\n        var thick=gtype==='sw'?4.5:3.2;\n        $('vc-r-desc').innerHTML='NPS '+nps+'\u2033, Class '+cls+', '+(gtype==='sw'?'Spiral Wound':'Flat Sheet');\n        $('vc-r-gid').innerHTML=f.gid.toFixed(1)+' <span class=\"vc-rcard-unit\">mm<\/span>';\n        $('vc-r-god').innerHTML=f.god.toFixed(1)+' <span class=\"vc-rcard-unit\">mm<\/span>';\n        $('vc-r-thick').innerHTML=thick.toFixed(1)+' <span class=\"vc-rcard-unit\">mm<\/span>';\n        $('vc-r-bolts').innerHTML=f.bolts+' <span class=\"vc-rcard-unit\">bolts<\/span>';\n        $('vc-r-bdia').innerHTML=f.bdia;\n    }\n\n    $('vc-nps').addEventListener('change',calculate);\n    $('vc-class').addEventListener('change',calculate);\n    $('vc-gtype').addEventListener('change',calculate);\n\n    document.querySelectorAll('.vc-preset-btn').forEach(function(btn){btn.addEventListener('click',function(e){e.preventDefault();$('vc-nps').value=this.getAttribute('data-n');$('vc-class').value=this.getAttribute('data-c');$('vc-gtype').value=this.getAttribute('data-g');calculate()})});\n\n    $('vc-copy-btn').addEventListener('click',function(){var text='Flange Gasket\\n'+$('vc-r-desc').textContent+'\\nGasket ID: '+$('vc-r-gid').textContent+'\\nGasket OD: '+$('vc-r-god').textContent+'\\nThickness: '+$('vc-r-thick').textContent+'\\nBolts: '+$('vc-r-bolts').textContent+' \u00d7 '+$('vc-r-bdia').textContent+'\\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\\nvibromera.eu';if(navigator.clipboard){navigator.clipboard.writeText(text).then(function(){var b=$('vc-copy-btn');b.classList.add('vc-copied');b.innerHTML='<svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><polyline points=\"20 6 9 17 4 12\"\/><\/svg> Copied!';setTimeout(function(){b.classList.remove('vc-copied');b.innerHTML='<svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\"\/><path d=\"M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1\"\/><\/svg> Copy'},2000)})}});\n\n    document.querySelectorAll('.vc-section-toggle').forEach(function(btn){btn.addEventListener('click',function(){var s=this.closest('.vc-section');s.classList.toggle('vc-open');this.setAttribute('aria-expanded',s.classList.contains('vc-open'))})});\n\n    var faqData=[\n        {q:'How do I select a gasket for a flanged joint?',a:'<p>Consider: flange rating (class), pipe size, service T\/P, media compatibility, and gasket type. ASME B16.20 (spiral wound) or B16.21 (non-metallic) define standard sizes.<\/p>'},\n        {q:'What is the difference between RF and RTJ flanges?',a:'<p>RF (raised face) uses flat\/spiral gaskets on a raised surface. RTJ (ring type joint) uses metallic rings in machined grooves for high-pressure\/temperature service.<\/p>'},\n        {q:'What is gasket seating stress?',a:'<p>The minimum bolt stress to initially compress the gasket. Varies by type: rubber \u22481.4 MPa, spiral wound \u224869 MPa, solid metal \u2248180 MPa.<\/p>'},\n        {q:'What bolt torque is needed?',a:'<p>T = K \u00d7 d \u00d7 F\/n. K \u2248 0.2 (lubricated), d = bolt diameter, F = total bolt load, n = number of bolts. Follow ASME PCC-1 for systematic tightening.<\/p>'},\n        {q:'When should I use spiral wound gaskets?',a:'<p>Spiral wound (ASME B16.20) suits most RF flange applications: -200\u00b0C to 600\u00b0C, up to Class 2500, compatible with most chemicals. The inner ring prevents buckling, outer ring provides centering.<\/p>'}\n    ];\n    var faqList=$('vc-faq-list');faqData.forEach(function(f){faqList.innerHTML+='<div class=\"vc-faq-item\"><button type=\"button\" class=\"vc-faq-q\"><span>'+f.q+'<\/span><svg class=\"vc-faq-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button><div class=\"vc-faq-a\"><div class=\"vc-faq-a-inner\">'+f.a+'<\/div><\/div><\/div>'});\n    faqList.addEventListener('click',function(e){var btn=e.target.closest('.vc-faq-q');if(!btn)return;btn.closest('.vc-faq-item').classList.toggle('vc-open')});\n\n    function renderFormulas(){try{katex.render('W_{m2} = \\\\pi \\\\cdot b \\\\cdot G \\\\cdot y',$('vc-katex-1'),{displayMode:true,throwOnError:false})}catch(e){}}\n    function init(){renderFormulas();calculate()}\n    if(document.readyState==='loading')document.addEventListener('DOMContentLoaded',init);else init();\n})();\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Free flange gasket sizing calculator. Select flange class and pipe size to get gasket ID, OD, thickness, and bolt load requirements.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100096","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/te\/wp-json\/wp\/v2\/calculator\/100096","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/te\/wp-json\/wp\/v2\/calculator"}],"about":[{"href":"https:\/\/vibromera.eu\/te\/wp-json\/wp\/v2\/types\/calculator"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/te\/wp-json\/wp\/v2\/calculator\/100096\/revisions"}],"predecessor-version":[{"id":101177,"href":"https:\/\/vibromera.eu\/te\/wp-json\/wp\/v2\/calculator\/100096\/revisions\/101177"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/te\/wp-json\/wp\/v2\/media?parent=100096"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/te\/wp-json\/wp\/v2\/categories?post=100096"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/te\/wp-json\/wp\/v2\/tags?post=100096"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}