{"id":699,"date":"2025-09-27T22:36:35","date_gmt":"2025-09-27T14:36:35","guid":{"rendered":"https:\/\/ptfesuppliers.com\/?post_type=product&#038;p=699"},"modified":"2026-04-08T15:43:29","modified_gmt":"2026-04-08T07:43:29","slug":"ptfe-v-type-gasket-self-energizing-ptfe-flange-seal","status":"publish","type":"product","link":"https:\/\/ptfesuppliers.com\/ru\/product\/ptfe-v-type-gasket-self-energizing-ptfe-flange-seal\/","title":{"rendered":"\u041f\u0440\u043e\u043a\u043b\u0430\u0434\u043a\u0430 V-\u043e\u0431\u0440\u0430\u0437\u043d\u043e\u0433\u043e \u0442\u0438\u043f\u0430 \u0438\u0437 \u041f\u0422\u0424\u042d \u2014 \u0441\u0430\u043c\u043e\u0437\u0430\u0442\u0432\u0435\u0440\u0434\u0435\u0432\u0430\u044e\u0449\u0430\u044f \u0444\u043b\u0430\u043d\u0446\u0435\u0432\u0430\u044f \u043f\u0440\u043e\u043a\u043b\u0430\u0434\u043a\u0430 \u0438\u0437 \u041f\u0422\u0424\u042d."},"content":{"rendered":"<p data-start=\"1042\" data-end=\"1424\">\u041e\u043d <strong data-start=\"1046\" data-end=\"1068\">PTFE V-Type Gasket<\/strong> from <strong data-start=\"1074\" data-end=\"1086\">\u0427\u0443\u043d\u044c\u0445\u0443\u0430\u043d\u044c<\/strong> uses a V-shaped geometry and high-quality PTFE (pure or enhanced) to achieve a pressure-activated, self-tightening seal. Engineered for extreme chemical resistance and ultra-high purity environments, it is ideal for sealing flanges on valves, pumps and pipework subjected to highly corrosive media and stringent cleanliness requirements.<\/p>\n<h2 data-start=\"1426\" data-end=\"1452\">Key features &amp; benefits<\/h2>\n<ul data-start=\"1453\" data-end=\"2358\">\n<li data-start=\"1453\" data-end=\"1585\">\n<p data-start=\"1455\" data-end=\"1585\"><strong data-start=\"1455\" data-end=\"1490\">Outstanding chemical resistance<\/strong> \u2014 inert PTFE resists &gt;98% of acids, alkalis and solvents (including many strong corrosives).<\/p>\n<\/li>\n<li data-start=\"1586\" data-end=\"1737\">\n<p data-start=\"1588\" data-end=\"1737\"><strong data-start=\"1588\" data-end=\"1616\">Self-sealing V-structure<\/strong> \u2014 the V profile elastically deforms under flange pressure to improve sealing and compensate for flange irregularities.<\/p>\n<\/li>\n<li data-start=\"1738\" data-end=\"1853\">\n<p data-start=\"1740\" data-end=\"1853\"><strong data-start=\"1740\" data-end=\"1770\">Ultra-pure &amp; non-polluting<\/strong> \u2014 <span style=\"color: #ff6600;\"><strong><a style=\"color: #ff6600;\" href=\"https:\/\/ptfesuppliers.com\/ru\/the-unmatched-chemical-resistance-of-pure-ptfe-rods-in-electrical-systems\/\" target=\"_blank\" rel=\"noopener\" data-wpil-monitor-id=\"13\">pure PTFE<\/a><\/strong><\/span> variant passes FDA \/ USP Class VI requirements for low extractables.<\/p>\n<\/li>\n<li data-start=\"1854\" data-end=\"1969\">\n<p data-start=\"1856\" data-end=\"1969\"><strong data-start=\"1856\" data-end=\"1882\">Wide temperature range<\/strong> \u2014 reliable from cryogenic temperatures (-200\u00b0C) up to +260\u00b0C (short peaks to 300\u00b0C).<\/p>\n<\/li>\n<li data-start=\"1970\" data-end=\"2091\">\n<p data-start=\"1972\" data-end=\"2091\"><strong data-start=\"1972\" data-end=\"2000\">High pressure capability<\/strong> \u2014 rated up to 25 MPa; actual service pressure depends on flange design and bolt preload.<\/p>\n<\/li>\n<li data-start=\"2092\" data-end=\"2358\">\n<p data-start=\"2094\" data-end=\"2358\"><strong data-start=\"2094\" data-end=\"2133\">Long service life &amp; low maintenance<\/strong> \u2014 excellent anti-aging and creep resistance (glass-fiber option further improves anti-creep under high load), reducing downtime and lifecycle cost. Field applications report significant reduction in flange maintenance needs.<\/p>\n<\/li>\n<\/ul>\n<h2 data-start=\"2360\" data-end=\"2396\">Material options &amp; when to choose<\/h2>\n<ul data-start=\"2397\" data-end=\"2803\">\n<li data-start=\"2397\" data-end=\"2496\">\n<p data-start=\"2399\" data-end=\"2496\"><strong data-start=\"2399\" data-end=\"2422\">Pure PTFE (virgin):<\/strong> for highest chemical inertness and medical\/pharma\/semiconductor purity.<\/p>\n<\/li>\n<li data-start=\"2497\" data-end=\"2610\">\n<p data-start=\"2499\" data-end=\"2610\"><strong data-start=\"2499\" data-end=\"2527\">Glass-fiber <span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/ptfesuppliers.com\/ru\/product\/colorful-compressive-strength-hydraulic-seals-ptfe-filled-tube\/\" target=\"_blank\" rel=\"noopener\" data-wpil-monitor-id=\"11\">filled PTFE: improved mechanical strength<\/a><\/span><\/strong> and anti-creep for sustained high-pressure service.<\/p>\n<\/li>\n<li data-start=\"2611\" data-end=\"2803\">\n<p data-start=\"2613\" data-end=\"2803\"><strong data-start=\"2613\" data-end=\"2640\">Graphite modified PTFE:<\/strong> improved thermal conductivity and stability under rapid temperature cycling.<br data-start=\"2717\" data-end=\"2720\" \/>(Thicknesses, ID\/OD and cross-section can be customized per customer requirements.)<\/p>\n<\/li>\n<\/ul>\n<h2 data-start=\"2805\" data-end=\"2832\">Technical specifications<\/h2>\n<ul data-start=\"2833\" data-end=\"3495\">\n<li data-start=\"2833\" data-end=\"2874\">\n<p data-start=\"2835\" data-end=\"2874\"><strong data-start=\"2835\" data-end=\"2848\">\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b:<\/strong> PTFE (pure or modified)<\/p>\n<\/li>\n<li data-start=\"2875\" data-end=\"2942\">\n<p data-start=\"2877\" data-end=\"2942\"><strong data-start=\"2877\" data-end=\"2901\">\u0420\u0430\u0431\u043e\u0447\u0430\u044f \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0430:<\/strong> -200\u00b0C to +260\u00b0C (short-term to 300\u00b0C)<\/p>\n<\/li>\n<li data-start=\"2943\" data-end=\"2994\">\n<p data-start=\"2945\" data-end=\"2994\"><strong data-start=\"2945\" data-end=\"2970\">Max Working Pressure:<\/strong> \u2264 25 MPa (~3,626 psi)<\/p>\n<\/li>\n<li data-start=\"2995\" data-end=\"3025\">\n<p data-start=\"2997\" data-end=\"3025\"><strong data-start=\"2997\" data-end=\"3009\">\u041f\u043b\u043e\u0442\u043d\u043e\u0441\u0442\u044c:<\/strong> 2.1\u20132.3 g\/cm\u00b3<\/p>\n<\/li>\n<li data-start=\"3026\" data-end=\"3063\">\n<p data-start=\"3028\" data-end=\"3063\"><strong data-start=\"3028\" data-end=\"3052\">\u0414\u0438\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043f\u0440\u043e\u0447\u043d\u043e\u0441\u0442\u044c:<\/strong> 10 \u043a\u0412\/\u043c\u043c<\/p>\n<\/li>\n<li data-start=\"3064\" data-end=\"3111\">\n<p data-start=\"3066\" data-end=\"3111\"><strong data-start=\"3066\" data-end=\"3102\">Contraction (Shrink) Percentage:<\/strong> &lt; 0.4%<\/p>\n<\/li>\n<li data-start=\"3112\" data-end=\"3147\">\n<p data-start=\"3114\" data-end=\"3147\"><strong data-start=\"3114\" data-end=\"3138\">\u0423\u0434\u043b\u0438\u043d\u0435\u043d\u0438\u0435 \u043f\u0440\u0438 \u0440\u0430\u0437\u0440\u044b\u0432\u0435:<\/strong> \u2265 150%<\/p>\n<\/li>\n<li data-start=\"3148\" data-end=\"3181\">\n<p data-start=\"3150\" data-end=\"3181\"><strong data-start=\"3150\" data-end=\"3171\">\u0412\u043e\u0434\u043e\u043f\u043e\u0433\u043b\u043e\u0449\u0435\u043d\u0438\u0435:<\/strong> &lt; 0.01%<\/p>\n<\/li>\n<li data-start=\"3182\" data-end=\"3218\">\n<p data-start=\"3184\" data-end=\"3218\"><strong data-start=\"3184\" data-end=\"3205\">\u041f\u0440\u0435\u0434\u0435\u043b \u043f\u0440\u043e\u0447\u043d\u043e\u0441\u0442\u0438:<\/strong> \u2265 15,0 \u041c\u041f\u0430<\/p>\n<\/li>\n<li data-start=\"3219\" data-end=\"3247\">\n<p data-start=\"3221\" data-end=\"3247\"><strong data-start=\"3221\" data-end=\"3238\">Transparency:<\/strong> Opaque<\/p>\n<\/li>\n<li data-start=\"3248\" data-end=\"3341\">\n<p data-start=\"3250\" data-end=\"3341\"><strong data-start=\"3250\" data-end=\"3276\">Specification \/ Sizes:<\/strong> As per customer requirement (custom ID\/OD\/thickness available)<\/p>\n<\/li>\n<li data-start=\"3342\" data-end=\"3377\">\n<p data-start=\"3344\" data-end=\"3377\"><strong data-start=\"3344\" data-end=\"3366\">Trademark \/ Brand:<\/strong> \u0427\u0443\u043d\u044c\u0445\u0443\u0430\u043d\u044c<\/p>\n<\/li>\n<li data-start=\"3378\" data-end=\"3399\">\n<p data-start=\"3380\" data-end=\"3399\"><strong data-start=\"3380\" data-end=\"3391\">\u0418\u0441\u0442\u043e\u0447\u043d\u0438\u043a:<\/strong> \u041a\u0438\u0442\u0430\u0439<\/p>\n<\/li>\n<li data-start=\"3400\" data-end=\"3495\">\n<p data-start=\"3402\" data-end=\"3495\"><strong data-start=\"3402\" data-end=\"3424\">Transport Package:<\/strong> Standard export package (moisture-proof + carton; palletized for bulk)<\/p>\n<\/li>\n<\/ul>\n<h2 data-start=\"3497\" data-end=\"3520\">Typical applications<\/h2>\n<ul data-start=\"3521\" data-end=\"3947\">\n<li data-start=\"3521\" data-end=\"3602\">\n<p data-start=\"3523\" data-end=\"3602\">Semiconductor wafer <strong><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/ptfesuppliers.com\/ru\/2mm-ptfe-capillary-tubing-revolutionizes-chemical-processing-standards\/\" target=\"_blank\" rel=\"noopener\" data-wpil-monitor-id=\"14\">processing lines and ultra-pure chemical<\/a><\/span><\/strong> delivery systems<\/p>\n<\/li>\n<li data-start=\"3603\" data-end=\"3683\">\n<p data-start=\"3605\" data-end=\"3683\">Biopharma \/ vaccine reactors and piping where zero contamination is required<\/p>\n<\/li>\n<li data-start=\"3684\" data-end=\"3801\">\n<p data-start=\"3686\" data-end=\"3801\">Valves, pumps and flanges in highly corrosive chemical plants (including HF-containing streams where appropriate)<\/p>\n<\/li>\n<li data-start=\"3802\" data-end=\"3850\">\n<p data-start=\"3804\" data-end=\"3850\">LNG cryogenic valves and deep-cold pipelines<\/p>\n<\/li>\n<li data-start=\"3851\" data-end=\"3947\">\n<p data-start=\"3853\" data-end=\"3947\">Geothermal steam systems, <span style=\"color: #ff6600;\"><strong><a style=\"color: #ff6600;\" href=\"https:\/\/ptfesuppliers.com\/ru\/teflon-ptfe-lined-hose-chemical-transfer\/\" target=\"_blank\" rel=\"noopener\" data-wpil-monitor-id=\"12\">chemical reactors and high-purity battery electrolyte transfer lines<\/a><\/strong><\/span><\/p>\n<\/li>\n<\/ul>\n<h2 data-start=\"3949\" data-end=\"3986\">Installation &amp; compatibility notes<\/h2>\n<ul data-start=\"3987\" data-end=\"4466\">\n<li data-start=\"3987\" data-end=\"4152\">\n<p data-start=\"3989\" data-end=\"4152\">Ensure flange face condition and bolt preload follow standard flange assembly practice \u2014 the V-type gasket requires correct compression to activate self-sealing.<\/p>\n<\/li>\n<li data-start=\"4153\" data-end=\"4327\">\n<p data-start=\"4155\" data-end=\"4327\">For critical services (toxic gases, HF, oxygen systems, etc.), verify material selection (pure vs filled PTFE) and conduct compatibility checks per media and temperature.<\/p>\n<\/li>\n<li data-start=\"4328\" data-end=\"4466\">\n<p data-start=\"4330\" data-end=\"4466\">When replacing metal or elastomer gaskets with PTFE V-type gaskets, confirm groove\/seat dimensions or provide custom machining drawings.<\/p>\n<\/li>\n<\/ul>\n<h2 data-start=\"4468\" data-end=\"4514\">Quality, certification &amp; performance claims<\/h2>\n<ul data-start=\"4515\" data-end=\"4878\">\n<li data-start=\"4515\" data-end=\"4609\">\n<p data-start=\"4517\" data-end=\"4609\">Produced under strict quality controls; options for FDA \/ USP Class VI validated material.<\/p>\n<\/li>\n<li data-start=\"4610\" data-end=\"4745\">\n<p data-start=\"4612\" data-end=\"4745\">Designed to support customers\u2019 EHS targets and to meet ISO 15848 micro-leakage requirements when correctly specified and installed.<\/p>\n<\/li>\n<li data-start=\"4746\" data-end=\"4878\">\n<p data-start=\"4748\" data-end=\"4878\">Field deployments have demonstrated significant reductions in maintenance and downtime when replacing conventional gasket systems.<\/p>\n<\/li>\n<\/ul>\n<h2 data-start=\"4880\" data-end=\"4903\">Packaging &amp; delivery<\/h2>\n<p data-start=\"4904\" data-end=\"5121\">Sheets \/ cut gaskets are packed in clean, moisture-proof film and export cartons. Bulk orders palletized. Lead time depends on quantity and customization \u2014 contact us for specific delivery schedule and FOB\/CIF quotes.<\/p>\n<h2 data-start=\"5123\" data-end=\"5165\">Why choose Chunhuan PTFE V-Type Gasket?<\/h2>\n<p data-start=\"5166\" data-end=\"5476\">Chunhuan combines high-purity PTFE materials with an optimized V-type geometry to deliver a dependable, low-maintenance sealing solution for the toughest chemical and ultra-clean environments. Customizable, certified, and proven in demanding industries \u2014 engineered to minimize leakage risk and lifecycle cost.<\/p>","protected":false},"excerpt":{"rendered":"<p>Material: Pure PTFE (virgin) or modified PTFE (glass-fiber \/ graphite filled)<br \/>\nDesign: V-type self-energizing structure (pressure-activated sealing)<br \/>\nWorking Temperature: -200\u00b0C to +260\u00b0C (short-term to 300\u00b0C)<br \/>\nMax Working Pressure: \u2264 25 MPa (~3,626 psi)<br \/>\nPurity &amp; Compliance: 100% inert; meets FDA \/ USP Class VI standards (zero-contamination option)<br \/>\nTypical Applications: Flanges for pipelines, valves &amp; pumps in semiconductor, pharmaceutical, chemical, LNG and cryogenic systems<\/p>","protected":false},"featured_media":3932,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[35,98],"product_tag":[53,58,66,69,77,85],"class_list":["post-699","product","type-product","status-publish","has-post-thumbnail","product_cat-ptfe-products","product_cat-ptfe-gasket","product_tag-cryogenic-ptfe-washer","product_tag-fda-compliant-gasket","product_tag-high-pressure-ptfe-seal","product_tag-hydrofluoric-acid-gasket","product_tag-ptfe-v-gasket","product_tag-semiconductor-flange-gasket","first","instock","shipping-taxable","product-type-simple"],"gallery_images":[756,757,758,755],"_links":{"self":[{"href":"https:\/\/ptfesuppliers.com\/ru\/wp-json\/wp\/v2\/product\/699","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ptfesuppliers.com\/ru\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ptfesuppliers.com\/ru\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/ptfesuppliers.com\/ru\/wp-json\/wp\/v2\/comments?post=699"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ptfesuppliers.com\/ru\/wp-json\/wp\/v2\/media\/3932"}],"wp:attachment":[{"href":"https:\/\/ptfesuppliers.com\/ru\/wp-json\/wp\/v2\/media?parent=699"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ptfesuppliers.com\/ru\/wp-json\/wp\/v2\/product_brand?post=699"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ptfesuppliers.com\/ru\/wp-json\/wp\/v2\/product_cat?post=699"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ptfesuppliers.com\/ru\/wp-json\/wp\/v2\/product_tag?post=699"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}