{"id":830,"date":"2025-03-17T10:14:33","date_gmt":"2025-03-17T02:14:33","guid":{"rendered":"https:\/\/hengoseal.com\/?p=830"},"modified":"2025-03-17T10:14:33","modified_gmt":"2025-03-17T02:14:33","slug":"what-are-o-rings-how-they-work","status":"publish","type":"post","link":"https:\/\/hengoseal.com\/cs\/what-are-o-rings-how-they-work\/","title":{"rendered":"Co jsou O-krou\u017eky a jak funguj\u00ed? (Ultimate O-Ring Guide 2025)"},"content":{"rendered":"<p>O-krou\u017eky jsou z\u00e1kladn\u00ed t\u011bsnic\u00ed sou\u010d\u00e1sti pou\u017e\u00edvan\u00e9 v <strong>hydraulick\u00e9 syst\u00e9my, pneumatick\u00e9 aplikace, automobilov\u00e9 motory a pr\u016fmyslov\u00e9 stroje<\/strong>. V\u00fdb\u011br spr\u00e1vn\u00e9ho O-krou\u017eku zaji\u0161\u0165uje <strong>nepropustn\u00fd v\u00fdkon, prodlou\u017een\u00e1 \u017eivotnost a provozn\u00ed \u00fa\u010dinnost<\/strong>.<\/p>\n<p>V t\u00e9to p\u0159\u00edru\u010dce se budeme zab\u00fdvat <strong>jak funguj\u00ed O-krou\u017eky, r\u016fzn\u00e9 vlastnosti materi\u00e1l\u016f, kl\u00ed\u010dov\u00e1 krit\u00e9ria v\u00fdb\u011bru a p\u0159\u00edklady z re\u00e1ln\u00e9ho sv\u011bta<\/strong> kter\u00e9 v\u00e1m pomohou vybrat nejlep\u0161\u00ed O-krou\u017eek pro va\u0161i aplikaci.<\/p>\n<hr \/>\n<h2><strong>Co je O-krou\u017eek?<\/strong><\/h2>\n<p>O-krou\u017eek je a <strong>kruhov\u00e9 elastomerov\u00e9 t\u011bsn\u011bn\u00ed<\/strong> navr\u017een\u00fd tak, aby <strong>zabr\u00e1nit \u00faniku kapalin a plynu<\/strong> mezi dv\u011bma mechanick\u00fdmi plochami. Je \u0161iroce pou\u017e\u00edv\u00e1n d\u00edky sv\u00e9mu <strong>hospod\u00e1rnost, jednoduch\u00e1 instalace a vynikaj\u00edc\u00ed t\u011bsn\u00edc\u00ed vlastnosti<\/strong>.<\/p>\n<h3><strong>Pro\u010d jsou O-krou\u017eky tak \u00fa\u010dinn\u00e9?<\/strong><\/h3>\n<p>T\u011bsn\u00edc\u00ed schopnost O-krou\u017eku je zalo\u017eena na jeho <strong>elastick\u00e1 deformace<\/strong> p\u0159i stla\u010den\u00ed mezi dv\u011bma povrchy. Tato komprese umo\u017e\u0148uje O-krou\u017eku <strong>udr\u017eovat t\u011bsn\u00e9 ut\u011bsn\u011bn\u00ed i p\u0159i vysok\u00e9m tlaku a m\u011bn\u00edc\u00edch se teplot\u00e1ch<\/strong>.<\/p>\n<hr \/>\n<h2><strong>Pr\u016fvodce materi\u00e1lem O-krou\u017eku: V\u00fdb\u011br spr\u00e1vn\u00e9ho typu<\/strong><\/h2>\n<p>V\u00fdb\u011br spr\u00e1vn\u00e9ho materi\u00e1lu O-krou\u017eku je z\u00e1sadn\u00ed pro zaji\u0161t\u011bn\u00ed <strong>optim\u00e1ln\u00ed t\u011bsnic\u00ed v\u00fdkon<\/strong> za specifick\u00fdch pracovn\u00edch podm\u00ednek.<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>Materi\u00e1l<\/strong><\/th>\n<th><strong>Rozsah teplot (\u00b0C)<\/strong><\/th>\n<th><strong>Kl\u00ed\u010dov\u00e9 vlastnosti<\/strong><\/th>\n<th><strong>Nejlep\u0161\u00ed aplikace<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>NBR (Nitril)<\/strong><\/td>\n<td>-40 a\u017e 120<\/td>\n<td>Vynikaj\u00edc\u00ed odolnost v\u016f\u010di oleji, n\u00e1kladov\u011b efektivn\u00ed<\/td>\n<td>Automobilov\u00fd pr\u016fmysl, hydraulick\u00e1 t\u011bsn\u011bn\u00ed<\/td>\n<\/tr>\n<tr>\n<td><strong>FKM (Viton\u00ae)<\/strong><\/td>\n<td>-20 a\u017e 230<\/td>\n<td>Vysok\u00e1 teplotn\u00ed a chemick\u00e1 odolnost<\/td>\n<td>Letectv\u00ed, palivov\u00e9 syst\u00e9my<\/td>\n<\/tr>\n<tr>\n<td><strong>EPDM<\/strong><\/td>\n<td>-50 a\u017e 150<\/td>\n<td>Odolnost v\u016f\u010di po\u010das\u00ed a oz\u00f3nu<\/td>\n<td>Venkovn\u00ed aplikace, HVAC<\/td>\n<\/tr>\n<tr>\n<td><strong>PTFE (Teflon\u00ae)<\/strong><\/td>\n<td>-200 a\u017e 260<\/td>\n<td>Extr\u00e9mn\u00ed chemick\u00e1 odolnost<\/td>\n<td>Chemick\u00e9 zpracov\u00e1n\u00ed, l\u00e9ka\u0159sk\u00e9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><strong>Jak p\u0159izp\u016fsobit materi\u00e1l O-krou\u017eku va\u0161\u00ed aplikaci<\/strong><\/h3>\n<p>Chcete-li vybrat nejlep\u0161\u00ed O-krou\u017eek, zva\u017ete <strong>teplota, tlak a chemick\u00e1 expozice<\/strong>:<\/p>\n<ul>\n<li><strong>Prost\u0159ed\u00ed s vysokou teplotou<\/strong> (nad 200\u00b0C): Pou\u017eijte <strong>FKM nebo PTFE<\/strong>.<\/li>\n<li><strong>Aplikace na b\u00e1zi oleje<\/strong> (motor a palivov\u00e9 syst\u00e9my): Pou\u017eit\u00ed <strong>NBR<\/strong> pro n\u00e1kladovou efektivitu.<\/li>\n<li><strong>Expozice venku a odolnost v\u016f\u010di oz\u00f3nu<\/strong>: Pou\u017eijte <strong>EPDM<\/strong> odolat pov\u011btrnostn\u00edm vliv\u016fm.<\/li>\n<li><strong>Extr\u00e9mn\u00ed chemick\u00e9 prost\u0159ed\u00ed<\/strong>: Pou\u017eijte <strong>PTFE pro vynikaj\u00edc\u00ed odolnost<\/strong>.<\/li>\n<\/ul>\n<hr \/>\n<h2><strong>O-krou\u017eky v hydraulick\u00fdch syst\u00e9mech<\/strong><\/h2>\n<p>O-krou\u017eky hraj\u00ed z\u00e1sadn\u00ed roli <strong>hydraulick\u00e9 v\u00e1lce<\/strong>, zaji\u0161\u0165uj\u00edc\u00ed hladk\u00fd provoz a zabra\u0148uj\u00edc\u00ed \u00fanik\u016fm za podm\u00ednek vysok\u00e9ho tlaku.<\/p>\n<h3><strong>Jak O-krou\u017eky zlep\u0161ily \u00fa\u010dinnost hydraulick\u00e9ho syst\u00e9mu<\/strong><\/h3>\n<p>A <strong>v\u00fdrobce stavebn\u00ed techniky<\/strong> kv\u016fli \u010dast\u00fdm poruch\u00e1m hydraulick\u00e9ho syst\u00e9mu <strong>net\u011bsnost t\u011bsn\u011bn\u00ed p\u0159i 180 \u00b0C a 2500 PSI<\/strong>. Po p\u0159epnut\u00ed na <strong>FKM vysokoteplotn\u00ed O-krou\u017eky<\/strong>, spole\u010dnost poznamenala:<br \/>\n\u2705 <strong>75% sn\u00ed\u017een\u00ed \u00faniku hydraulick\u00e9 kapaliny<\/strong><br \/>\n\u2705 <strong>Zv\u00fd\u0161en\u00ed \u017eivotnosti t\u011bsn\u011bn\u00ed ze 3 m\u011bs\u00edc\u016f na 1,5 roku<\/strong><br \/>\n\u2705 <strong>Ni\u017e\u0161\u00ed n\u00e1klady na \u00fadr\u017ebu o 40%<\/strong><\/p>\n<hr \/>\n<h2><strong>Objednejte si vysoce kvalitn\u00ed O-krou\u017eky od HENGOSEAL<\/strong><\/h2>\n<p>Hled\u00e1m <strong>pr\u00e9miov\u00e9 O-krou\u017eky pro pr\u016fmyslov\u00e9 aplikace?<\/strong> HENGOSEAL nab\u00edz\u00ed vysoce kvalitn\u00ed \u0159e\u0161en\u00ed t\u011bsn\u011bn\u00ed za konkurenceschopn\u00e9 ceny.  <\/p>\n<ul>\n<li>\ud83d\udce7 E-mail: <strong><a href=\"mailto:info@hengoseal.com\">info@hengoseal.com<\/a><\/strong>  <\/li>\n<li>\ud83d\udcf1 WhatsApp: <strong>+86 17622979498<\/strong>  <\/li>\n<li>\ud83c\udf0d Nav\u0161tivte: <strong><a href=\"https:\/\/hengoseal.com\/cs\/\">www.hengoseal.com<\/a><\/strong><br \/>\n<strong>Vy\u017e\u00e1dejte si bezplatnou cenovou nab\u00eddku je\u0161t\u011b dnes!<\/strong><\/p>\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><\/li>\n<\/ul>\n<h2>Lid\u00e9 se tak\u00e9 ptaj\u00ed<\/h2>\n<div class=\"faq-container\">\n<div class=\"faq-question\">1. Jak\u00e1 je typick\u00e1 \u017eivotnost O-krou\u017eku?<\/div>\n<div class=\"faq-answer\">\nO-krou\u017eky obvykle vydr\u017e\u00ed <strong>5-10 let<\/strong>v z\u00e1vislosti na materi\u00e1lu a provozn\u00edch podm\u00ednk\u00e1ch.\n<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">2. M\u016f\u017ee O-krou\u017eek fungovat p\u0159i extr\u00e9mn\u00edch teplot\u00e1ch?<\/div>\n<div class=\"faq-answer\">\nAno, <strong>PTFE O-krou\u017eky vydr\u017e\u00ed a\u017e 260\u00b0C<\/strong>, zat\u00edmco <strong>EPDM zvl\u00e1dne -50\u00b0C<\/strong>.\n<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">3. Jak\u00fd je nejlep\u0161\u00ed O-krou\u017eek pro vysokotlak\u00e9 aplikace?<\/div>\n<div class=\"faq-answer\">\nPro <strong>vysokotlak\u00e9 hydraulick\u00e9 syst\u00e9my<\/strong>, pou\u017eit\u00ed <strong>Viton\u00ae nebo NBR<\/strong>.\n<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">4. Jak ur\u010d\u00edm spr\u00e1vnou velikost O-krou\u017eku?<\/div>\n<div class=\"faq-answer\">\nKontrola <strong>ID (vnit\u0159n\u00ed pr\u016fm\u011br), OD (vn\u011bj\u0161\u00ed pr\u016fm\u011br) a CS (tlou\u0161\u0165ka pr\u016f\u0159ezu)<\/strong>.\n<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">5. Pro\u010d m\u016fj O-krou\u017eek p\u0159ed\u010dasn\u011b selh\u00e1v\u00e1?<\/div>\n<div class=\"faq-answer\">\nMezi b\u011b\u017en\u00e9 d\u016fvody pat\u0159\u00ed <strong>nespr\u00e1vn\u00fd v\u00fdb\u011br materi\u00e1lu, nadm\u011brn\u00fd tlak nebo chemick\u00e1 nekompatibilita<\/strong>.\n<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">6. Mohu znovu pou\u017e\u00edt O-krou\u017eky?<\/div>\n<div class=\"faq-answer\">\nObecn\u011b ne. O-krou\u017eky po stla\u010den\u00ed ztr\u00e1cej\u00ed elasticitu a m\u011bly by b\u00fdt vym\u011bn\u011bny.\n<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">7. Jak si mohu objednat O-krou\u017eky vlastn\u00ed velikosti?<\/div>\n<div class=\"faq-answer\">\nKontakt <strong><a href=\"mailto:info@hengoseal.com\">info@hengoseal.com<\/a><\/strong> nebo WhatsApp <strong>+86 17622979498<\/strong> pro zak\u00e1zkov\u00e9 objedn\u00e1vky.\n<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">8. Jak rychle m\u016f\u017ee HENGOSEAL odes\u00edlat objedn\u00e1vky?<\/div>\n<div class=\"faq-answer\">\nposkytujeme <strong>rychl\u00e9 glob\u00e1ln\u00ed odesl\u00e1n\u00ed do 3 dn\u016f<\/strong>.\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>O-krou\u017eky jsou z\u00e1kladn\u00ed t\u011bsnic\u00ed sou\u010d\u00e1sti pou\u017e\u00edvan\u00e9 v hydraulick\u00fdch syst\u00e9mech, pneumatick\u00fdch aplikac\u00edch, automobilov\u00fdch motorech a pr\u016fmyslov\u00fdch stroj\u00edch. V\u00fdb\u011br spr\u00e1vn\u00e9ho O-krou\u017eku [\u2026]<\/p>","protected":false},"author":1,"featured_media":831,"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":[37],"tags":[],"class_list":["post-830","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-o-ring-seals"],"_links":{"self":[{"href":"https:\/\/hengoseal.com\/cs\/wp-json\/wp\/v2\/posts\/830","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hengoseal.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hengoseal.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/cs\/wp-json\/wp\/v2\/comments?post=830"}],"version-history":[{"count":0,"href":"https:\/\/hengoseal.com\/cs\/wp-json\/wp\/v2\/posts\/830\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/cs\/wp-json\/wp\/v2\/media\/831"}],"wp:attachment":[{"href":"https:\/\/hengoseal.com\/cs\/wp-json\/wp\/v2\/media?parent=830"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hengoseal.com\/cs\/wp-json\/wp\/v2\/categories?post=830"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hengoseal.com\/cs\/wp-json\/wp\/v2\/tags?post=830"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}