{"id":1242,"date":"2025-05-03T19:13:24","date_gmt":"2025-05-03T11:13:24","guid":{"rendered":"https:\/\/hengoseal.com\/?p=1242"},"modified":"2025-05-03T19:13:24","modified_gmt":"2025-05-03T11:13:24","slug":"v-type-hydraulic-seals-guide","status":"publish","type":"post","link":"https:\/\/hengoseal.com\/vi\/v-type-hydraulic-seals-guide\/","title":{"rendered":"V-Type Hydraulic Seals: Why They\u2019re the Best Choice for Extreme Pressure Applications in 2025?"},"content":{"rendered":"<p>When your hydraulic system faces extreme pressure, standard seals might fail. That\u2019s where V-type seals shine.<\/p>\n<p>V-type hydraulic seals, also called V-packings, are designed to handle high-pressure, high-frequency conditions with minimal leakage and superior longevity.<\/p>\n<p>Let\u2019s explore why V-type seals are the top choice in 2025\u2014and how to pick the right configuration for your system.<\/p>\n<h2>What is a V-type hydraulic seal?<\/h2>\n<p>A V-type seal is a stacked sealing system made of multiple V-shaped rings.<\/p>\n<p>It typically includes:<\/p>\n<ul>\n<li>A male adapter ring (top support)<\/li>\n<li>Several V-rings (sealing elements)<\/li>\n<li>A female adapter ring (bottom support)<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/05\/V-Compact-Seal-.png\" alt=\"placeholder_image\" \/><\/p>\n<p>This structure ensures excellent flexibility under pressure, self-adjusting sealing performance, and strong resistance to extrusion. Explore our <a href=\"https:\/\/hengoseal.com\/vi\/san-pham\/hydraulic-seals\/\" target=\"_blank\">hydraulic seal product library<\/a> for V-type combinations suited for your industry.<\/p>\n<h2>How do V-packings differ from single-lip seals?<\/h2>\n<p>V-packings work by distributing sealing force across multiple rings, while single-lip seals rely on one contact point.<\/p>\n<table>\n<thead>\n<tr>\n<th>T\u00ednh n\u0103ng<\/th>\n<th>V-Type Seal<\/th>\n<th>Single-Lip Seal<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>S\u1ee9c ch\u1ecbu \u00e1p su\u1ea5t<\/td>\n<td>Up to 60 MPa<\/td>\n<td>Up to 25\u201340 MPa<\/td>\n<\/tr>\n<tr>\n<td>Sealing Surface<\/td>\n<td>Multi-layered<\/td>\n<td>Single edge<\/td>\n<\/tr>\n<tr>\n<td>Tu\u1ed5i th\u1ecd d\u1ecbch v\u1ee5<\/td>\n<td>Longer<\/td>\n<td>Shorter under load<\/td>\n<\/tr>\n<tr>\n<td>Adjustability<\/td>\n<td>High (via stacking)<\/td>\n<td>None<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>For example, if you're using <a href=\"https:\/\/hengoseal.com\/vi\/san-pham\/kdas-compact-seal\/\" target=\"_blank\">KDAS buffer seals<\/a>, pairing them with a V-pack in the rod side boosts shock resistance in excavators or presses.<\/p>\n<h2>When should you choose V-type seals?<\/h2>\n<p>Consider V-type seals when:<\/p>\n<ul>\n<li>Your system pressure exceeds 25\u201330 MPa<\/li>\n<li>You operate under frequent reversals or shock loading<\/li>\n<li>You need field-adjustable sealing<\/li>\n<li>Extrusion risk is high due to gap clearance<\/li>\n<\/ul>\n<p>TRONG <a href=\"https:\/\/hengoseal.com\/vi\/what-is-an-oil-seal\/\" target=\"_blank\">ph\u1edbt d\u1ea7u<\/a> and buffer seal applications, V-packings are often used in combination with wipers and rod guides to form a complete seal stack.<\/p>\n<h2>How do you install and adjust V-pack seals?<\/h2>\n<p>V-packings are stackable and tunable. More rings = higher sealing force.<\/p>\n<p><strong>Basic installation steps:<\/strong><\/p>\n<ol>\n<li>Clean groove and apply lubricant<\/li>\n<li>Place female adapter at the bottom<\/li>\n<li>Stack 3\u20135 V-rings (always odd number)<\/li>\n<li>Top with male adapter<\/li>\n<li>Compress with gland or retainer<\/li>\n<\/ol>\n<p>Need a visual? Check our guide on <a href=\"https:\/\/hengoseal.com\/vi\/hydraulic-seals-guide\/\" target=\"_blank\">how to choose and replace hydraulic seals<\/a> for details on piston seal stacks.<\/p>\n<h2>Which materials are best for V-type seals?<\/h2>\n<table>\n<thead>\n<tr>\n<th>V\u1eadt li\u1ec7u<\/th>\n<th>Nhi\u1ec7t \u0111\u1ed9<\/th>\n<th>Media Compatibility<\/th>\n<th>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>NBR<\/td>\n<td>-30\u00b0C \u0111\u1ebfn 100\u00b0C<\/td>\n<td>Mineral oil, water<\/td>\n<td>General industrial<\/td>\n<\/tr>\n<tr>\n<td>FKM<\/td>\n<td>-20\u00b0C \u0111\u1ebfn 200\u00b0C<\/td>\n<td>Fuel, chemicals<\/td>\n<td>M\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t<\/td>\n<\/tr>\n<tr>\n<td>PTFE<\/td>\n<td>-40\u00b0C to 260\u00b0C<\/td>\n<td>All chemicals<\/td>\n<td>Extreme sealing needs<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>If your application requires higher thermal or chemical resistance, V-type seals in FKM or PTFE can be combined with <a href=\"https:\/\/hengoseal.com\/vi\/san-pham\/un-hydraulic-seal\/\" target=\"_blank\">Thanh ni\u00eam phong c\u1ee7a Li\u00ean H\u1ee3p Qu\u1ed1c<\/a> for dual-stage sealing.<\/p>\n<h2>How do V-type seals compare with KDAS and IDU\/ODU seals?<\/h2>\n<table>\n<thead>\n<tr>\n<th>Ki\u1ec3u<\/th>\n<th>Motion<\/th>\n<th>K\u1ebft c\u1ea5u<\/th>\n<th>Ph\u1ea1m vi \u00e1p su\u1ea5t<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>KDAS<\/td>\n<td>Rod<\/td>\n<td>Compact, integrated<\/td>\n<td>\u2264 40MPa<\/td>\n<\/tr>\n<tr>\n<td>Ti\u00eam ch\u00edch ma t\u00fay\/ODU<\/td>\n<td>P\u00edt t\u00f4ng<\/td>\n<td>Symmetrical single piece<\/td>\n<td>\u2264 30\u201340 MPa<\/td>\n<\/tr>\n<tr>\n<td>V-Type<\/td>\n<td>Rod\/Piston<\/td>\n<td>Multi-piece stack<\/td>\n<td>Up to 60 MPa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>For general OEM cylinders, <a href=\"https:\/\/hengoseal.com\/vi\/un-hydraulic-seal-guide\/\" target=\"_blank\">UN seals<\/a> are sufficient. But when you face rugged loads, V-type packs offer customizable protection.<\/p>\n<h2>Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n<p>V-type hydraulic seals offer unmatched flexibility, durability, and performance under extreme pressure. If reliability is your top concern, they\u2019re your go-to choice in 2025.<\/p>\n<h2>Upgrade your sealing system today<\/h2>\n<p>\ud83d\udce9 Mail:info@hengoseal.com<br \/>\n\ud83d\udcde WhatsApp\uff1a+86 17622979498<\/p>\n<h2>Related topic<\/h2>\n<ul>\n<li><a href=\"https:\/\/hengoseal.com\/vi\/san-pham\/kdas-compact-seal\/\" target=\"_blank\">KDAS Compact Seal | Hydraulic Buffer Seal<\/a><\/li>\n<li><a href=\"https:\/\/hengoseal.com\/vi\/san-pham\/un-hydraulic-seal\/\" target=\"_blank\">UN Hydraulic Seal | OEM Rod Seal<\/a><\/li>\n<li><a href=\"https:\/\/hengoseal.com\/vi\/hydraulic-seals-guide\/\" target=\"_blank\">How to Choose and Replace Hydraulic Seals<\/a><\/li>\n<li><a href=\"https:\/\/hengoseal.com\/vi\/idu-vs-odu-seals-guide\/\" target=\"_blank\">IDU vs ODU Seals \u2013 Which One Should You Choose?<\/a><\/li>\n<\/ul>\n<style>\n.faq-question {\ncursor: pointer;\nfont-weight: bold;\npadding: 10px;\nbackground-color: #f1f1f1;\nborder: 1px solid #ddd;\nmargin-bottom: 5px;\ncolor: #0073aa;\n}\n.faq-answer {\ndisplay: none;\npadding: 10px;\nborder-left: 3px solid #0073aa;\nbackground-color: #f9f9f9;\nmargin-bottom: 10px;\n}\n<\/style>\n<p><script>\ndocument.addEventListener('DOMContentLoaded', function() {\nconst questions = document.querySelectorAll('.faq-question');\nquestions.forEach(question => {\nquestion.addEventListener('click', function() {\nconst answer = this.nextElementSibling;\nanswer.style.display = answer.style.display === 'block' ? 'none' : 'block';\n});\n});\n});\n<\/script><br \/>\n<!-- JSON-LD FAQ Schema --><br \/>\n<script type=\"application\/ld+json\">\n{\n\"@context\": \"https:\/\/schema.org\",\n\"@type\": \"FAQPage\",\n\"mainEntity\": [\n{\n\"@type\": \"Question\",\n\"name\": \"Can I adjust the sealing pressure in a V-pack seal?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Yes&mdash;add or remove rings to modify sealing force.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Are V-type seals reusable after maintenance?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Only if undamaged; otherwise, replace to ensure performance.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Can I use V-pack seals with biodegradable fluids?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Yes, with compatible materials like FKM or PTFE.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Is there a limit to how many V-rings I can stack?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Typically 3&ndash;7; more may cause over-compression.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Do V-type seals work in piston and rod applications?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Yes, just use correct orientation and support rings.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Are V-type seals suitable for mobile machinery?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Absolutely&mdash;especially for cylinders with shock loads.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"How do I choose between V-pack and IDU seals?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"For extreme load and long life, V-pack; for general, IDU.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Do you supply V-pack kits or only individual rings?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"We offer complete V-pack kits or customized stacks on request.\"\n}\n}\n]\n}\n<\/script><\/p>\n<h2>M\u1ecdi ng\u01b0\u1eddi c\u0169ng h\u1ecfi<\/h2>\n<div class=\"faq-container\">\n<div class=\"faq-question\">1. Can I adjust the sealing pressure in a V-pack seal?<\/div>\n<div class=\"faq-answer\">Yes\u2014add or remove rings to modify sealing force.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">2. Are V-type seals reusable after maintenance?<\/div>\n<div class=\"faq-answer\">Only if undamaged; otherwise, replace to ensure performance.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">3. Can I use V-pack seals with biodegradable fluids?<\/div>\n<div class=\"faq-answer\">Yes, with compatible materials like FKM or PTFE.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">4. Is there a limit to how many V-rings I can stack?<\/div>\n<div class=\"faq-answer\">Typically 3\u20137; more may cause over-compression.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">5. Do V-type seals work in piston and rod applications?<\/div>\n<div class=\"faq-answer\">Yes, just use correct orientation and support rings.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">6. Are V-type seals suitable for mobile machinery?<\/div>\n<div class=\"faq-answer\">Absolutely\u2014especially for cylinders with shock loads.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">7. How do I choose between V-pack and IDU seals?<\/div>\n<div class=\"faq-answer\">For extreme load and long life, V-pack; for general, IDU.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">8. Do you supply V-pack kits or only individual rings?<\/div>\n<div class=\"faq-answer\">We offer complete V-pack kits or customized stacks on request.<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>When your hydraulic system faces extreme pressure, standard seals might fail. That\u2019s where V-type seals shine. V-type hydraulic seals, also [&hellip;]<\/p>","protected":false},"author":1,"featured_media":1243,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[38],"tags":[],"class_list":["post-1242","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hydraulic-seals"],"_links":{"self":[{"href":"https:\/\/hengoseal.com\/vi\/wp-json\/wp\/v2\/posts\/1242","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hengoseal.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hengoseal.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/vi\/wp-json\/wp\/v2\/comments?post=1242"}],"version-history":[{"count":0,"href":"https:\/\/hengoseal.com\/vi\/wp-json\/wp\/v2\/posts\/1242\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/vi\/wp-json\/wp\/v2\/media\/1243"}],"wp:attachment":[{"href":"https:\/\/hengoseal.com\/vi\/wp-json\/wp\/v2\/media?parent=1242"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hengoseal.com\/vi\/wp-json\/wp\/v2\/categories?post=1242"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hengoseal.com\/vi\/wp-json\/wp\/v2\/tags?post=1242"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}