{"id":15195,"date":"2026-05-12T08:02:00","date_gmt":"2026-05-12T00:02:00","guid":{"rendered":"https:\/\/www.xintaivalves.com\/?p=15195"},"modified":"2026-05-15T09:04:05","modified_gmt":"2026-05-15T01:04:05","slug":"what-difference-metal-vs-soft-seated-butterfly-valves","status":"publish","type":"post","link":"https:\/\/www.xintaivalves.com\/hu\/blog\/butterfly-valve\/what-difference-metal-vs-soft-seated-butterfly-valves\/","title":{"rendered":"\u00datmutat\u00f3 a f\u00e9m \u00fcl\u00e9ses pillang\u00f3szelepek \u00e9s a puha \u00fcl\u00e9ses pillang\u00f3szelepek megk\u00fcl\u00f6nb\u00f6ztet\u00e9s\u00e9hez"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Tartalomjegyz\u00e9k<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Tartalomjegyz\u00e9k v\u00e1lt\u00e1sa\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">V\u00e1lt\u00e1s<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/butterfly-valve\/what-difference-metal-vs-soft-seated-butterfly-valves\/#Soft_Seated_Butterfly_Valves_Features_and_Specifications\" >Puha \u00fcl\u00e9ses pillang\u00f3szelepek: Jellemz\u0151k \u00e9s specifik\u00e1ci\u00f3k<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/butterfly-valve\/what-difference-metal-vs-soft-seated-butterfly-valves\/#Common_Materials_Used_in_Soft_Seat_Valves\" >A puha \u00fcl\u00e9ses szelepekben haszn\u00e1lt \u00e1ltal\u00e1nos anyagok<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/butterfly-valve\/what-difference-metal-vs-soft-seated-butterfly-valves\/#Features_and_Specifications_of_Metal_Seated_Butterfly_Valves\" >F\u00e9m \u00fcl\u00e9ses pillang\u00f3szelepek jellemz\u0151i \u00e9s specifik\u00e1ci\u00f3i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/butterfly-valve\/what-difference-metal-vs-soft-seated-butterfly-valves\/#Comparison_Between_Metal_and_Soft-Seated_Valves\" >\u00d6sszehasonl\u00edt\u00e1s a f\u00e9m \u00e9s a puha \u00fcl\u00e9ses szelepek k\u00f6z\u00f6tt<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/butterfly-valve\/what-difference-metal-vs-soft-seated-butterfly-valves\/#1_Sealing_Performance\" >1. T\u00f6m\u00edt\u00e9si teljes\u00edtm\u00e9ny<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/butterfly-valve\/what-difference-metal-vs-soft-seated-butterfly-valves\/#2_Temperature_Range\" >2. H\u0151m\u00e9rs\u00e9kleti tartom\u00e1ny<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/butterfly-valve\/what-difference-metal-vs-soft-seated-butterfly-valves\/#3_Pressure_Rating\" >3. Nyom\u00e1s\u00e9rt\u00e9k<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/butterfly-valve\/what-difference-metal-vs-soft-seated-butterfly-valves\/#4_Abrasion_and_Corrosion_Resistance\" >4. Kop\u00e1s- \u00e9s korr\u00f3zi\u00f3\u00e1ll\u00f3s\u00e1g<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/butterfly-valve\/what-difference-metal-vs-soft-seated-butterfly-valves\/#5_Service_Life_and_Maintenance\" >5. \u00c9lettartam \u00e9s karbantart\u00e1s<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/butterfly-valve\/what-difference-metal-vs-soft-seated-butterfly-valves\/#6_Cost\" >6. K\u00f6lts\u00e9g<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/butterfly-valve\/what-difference-metal-vs-soft-seated-butterfly-valves\/#7_Structural_Differences\" >7. Szerkezeti k\u00fcl\u00f6nbs\u00e9gek<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/butterfly-valve\/what-difference-metal-vs-soft-seated-butterfly-valves\/#Industry_Applications_Metal_Seated_and_Soft_Seated_Valves\" >Ipari alkalmaz\u00e1sok: F\u00e9m \u00fcl\u00e9ses \u00e9s puha \u00fcl\u00e9ses szelepek<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/butterfly-valve\/what-difference-metal-vs-soft-seated-butterfly-valves\/#Conclusion\" >K\u00f6vetkeztet\u00e9s<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">Az ipari \u00e1raml\u00e1sszab\u00e1lyoz\u00e1sban a pillang\u00f3szelepek fontos szerepet j\u00e1tszanak a <a href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/valves-for-water-treatment\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/valves-for-water-treatment\/\" rel=\"noreferrer noopener\">v\u00edztiszt\u00edt\u00f3 telepeken<\/a> \u00e9s az elektromos h\u00e1l\u00f3zatokban.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00e9rn\u00f6kk\u00e9nt vagy beszerz\u00e9si szakemberk\u00e9nt kulcsfontoss\u00e1g\u00fa d\u00f6nt\u00e9s meghozatal\u00e1t jelenti egy f\u00e9m \u00fcl\u00e9ses pillang\u00f3szelep \u00e9s egy puha \u00fcl\u00e9ses pillang\u00f3szelep k\u00f6z\u00f6tt. A rossz t\u00f6m\u00edt\u0151anyag kiv\u00e1laszt\u00e1sa id\u0151 el\u0151tti sziv\u00e1rg\u00e1shoz, k\u00f6lts\u00e9ges, nem tervezett le\u00e1ll\u00e1sokhoz \u00e9s s\u00falyos biztons\u00e1gi kock\u00e1zatokhoz vezethet.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ez a cikk a f\u00e9m \u00fcl\u00e9ses \u00e9s a puha \u00fcl\u00e9ses szelepek k\u00f6z\u00f6tti k\u00fcl\u00f6nbs\u00e9geket, azok jellemz\u0151it, specifik\u00e1ci\u00f3it \u00e9s alkalmaz\u00e1si ter\u00fcleteit t\u00e1rgyalja. Seg\u00edteni fog a m\u00e9rn\u00f6k\u00f6knek \u00e9s a beszerz\u00e9si szakembereknek a szelept\u00edpusok kiv\u00e1laszt\u00e1s\u00e1ban az ISO 5208 szabv\u00e1nyok alapj\u00e1n.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Soft_Seated_Butterfly_Valves_Features_and_Specifications\"><\/span>Puha \u00fcl\u00e9ses pillang\u00f3szelepek: Jellemz\u0151k \u00e9s specifik\u00e1ci\u00f3k<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A puha \u00fcl\u00e9ses pillang\u00f3szelep rugalmas, nem f\u00e9mes anyagot haszn\u00e1l a t\u00f6m\u00edt\u0151fel\u00fcleten. Amikor a t\u00e1rcsa z\u00e1r\u00f3dik, r\u00e1nyom\u00f3dik a puha t\u00f6m\u00edt\u00e9sre. Ez\u00e9rt h\u00edvj\u00e1k puha \u00fcl\u00e9ses szelepnek.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A szelep anyaga kiss\u00e9 deform\u00e1l\u00f3dik, \u00e9s kit\u00f6lti a mikroszkopikus r\u00e9seket a t\u00e1rcsa sz\u00e9le \u00e9s az \u00fcl\u00e9s k\u00f6z\u00f6tt. Ez szoros, nulla sziv\u00e1rg\u00e1s\u00fa t\u00f6m\u00edt\u00e9st eredm\u00e9nyez.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ez a kialak\u00edt\u00e1s a rugalmas \u00fcl\u00e9ses <strong>pillang\u00f3szab\u00e1lyoz\u00f3szelepn\u00e9l<\/strong>. is megfigyelhet\u0151. Egy m\u00e1sik t\u00edpus a <strong>ragasztott \u00fcl\u00e9ses pillang\u00f3szelep,<\/strong> ahol az \u00fcl\u00e9st a gy\u00e1rt\u00e1s sor\u00e1n k\u00f6zvetlen\u00fcl a h\u00e1zba ragasztj\u00e1k. Ez a kialak\u00edt\u00e1s az \u00fcl\u00e9st elv\u00e1laszthatatlann\u00e1 teszi a h\u00e1zt\u00f3l. Seg\u00edt cs\u00f6kkenteni az \u00f6sszeszerel\u00e9si alkatr\u00e9szek sz\u00e1m\u00e1t, de azt is jelenti, hogy az \u00fcl\u00e9st elhaszn\u00e1l\u00f3d\u00e1sakor a h\u00e1zat kell cser\u00e9lni.\u00a0<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Materials_Used_in_Soft_Seat_Valves\"><\/span>A puha \u00fcl\u00e9ses szelepekben haszn\u00e1lt \u00e1ltal\u00e1nos anyagok<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ez a r\u00e9sz a puha \u00fcl\u00e9ses szelepekben haszn\u00e1lt k\u00fcl\u00f6nb\u00f6z\u0151 anyagokat \u00e9s m\u0171szaki specifik\u00e1ci\u00f3kat t\u00e1rgyalja. Minden anyag k\u00fcl\u00f6nb\u00f6z\u0151 k\u00f6zegekhez alkalmas, amelyek a h\u0151m\u00e9rs\u00e9klett\u0151l, a k\u00e9miai \u00f6sszef\u00e9rhet\u0151s\u00e9gt\u0151l \u00e9s a szelep ciklusainak gyakoris\u00e1g\u00e1t\u00f3l f\u00fcggenek.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>EPDM (etil\u00e9n-propil\u00e9n-di\u00e9n monomer) \u2013 <\/strong>Ellen\u00e1ll az \u00f3zonnak, a h\u0151nek \u00e9s az \u00f6reged\u00e9snek. -40\u00b0C \u00e9s 120\u00b0C k\u00f6z\u00f6tti h\u0151m\u00e9rs\u00e9kleten m\u0171k\u00f6dhet. \u00c9desv\u00edzi, szennyv\u00edzi \u00e9s tengerv\u00edz rendszerekben haszn\u00e1lj\u00e1k.<\/li>\n\n\n\n<li><strong>NBR (nitril\/buna-N) \u2013 <\/strong>Szok\u00e1sos v\u00e1laszt\u00e1s k\u0151olaj alap\u00fa folyad\u00e9kokhoz \u00e9s f\u00f6ldg\u00e1zhoz. J\u00f3 olaj- \u00e9s kop\u00e1s\u00e1ll\u00f3s\u00e1g. -30\u00b0C \u00e9s 90\u00b0C k\u00f6z\u00f6tti h\u0151m\u00e9rs\u00e9kleten m\u0171k\u00f6dhet.<\/li>\n\n\n\n<li><strong>PTFE (politetrafluoretil\u00e9n) \u2013 <\/strong>Szinte univerz\u00e1lis k\u00e9miai ellen\u00e1ll\u00e1ssal rendelkezik. \u00c1ltal\u00e1ban gy\u00f3gyszer\u00e9szeti, vegyipari \u00e9s savas\/l\u00fagos cs\u0151vezet\u00e9kekben haszn\u00e1lj\u00e1k. FDA-kompatibilis min\u0151s\u00e9gben is kaphat\u00f3. -196\u00b0C \u00e9s 200\u00b0C k\u00f6z\u00f6tti h\u0151m\u00e9rs\u00e9kleten m\u0171k\u00f6dhet.<\/li>\n\n\n\n<li><strong>Viton (FKM) \u2013 <\/strong>K\u00e9pes kiss\u00e9 magasabb h\u0151m\u00e9rs\u00e9kleteket kezelni, mint a standard gumi. Kiv\u00e1l\u00f3 k\u00e9miai ellen\u00e1ll\u00e1ssal rendelkezik. Gyakori agressz\u00edv old\u00f3szeres \u00e9s \u00fczemanyag-alkalmaz\u00e1sokban.\u00a0<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Features_and_Specifications_of_Metal_Seated_Butterfly_Valves\"><\/span>F\u00e9m \u00fcl\u00e9ses pillang\u00f3szelepek jellemz\u0151i \u00e9s specifik\u00e1ci\u00f3i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/05\/Features-and-Specifications-of-Metal-Seated-Butterfly-Valves-1024x512.webp\" alt=\"K\u00e9p egy nagynyom\u00e1s\u00fa g\u0151zr\u0151l, f\u00e9m \u00fcl\u00e9s\u0171 pillang\u00f3szelepekkel\" class=\"wp-image-15196\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/05\/Features-and-Specifications-of-Metal-Seated-Butterfly-Valves-1024x512.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/05\/Features-and-Specifications-of-Metal-Seated-Butterfly-Valves-300x150.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/05\/Features-and-Specifications-of-Metal-Seated-Butterfly-Valves-768x384.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/05\/Features-and-Specifications-of-Metal-Seated-Butterfly-Valves-18x9.webp 18w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/05\/Features-and-Specifications-of-Metal-Seated-Butterfly-Valves.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A f\u00e9m \u00fcl\u00e9ses pillang\u00f3szelep mind a t\u00e1rcsa sz\u00e9l\u00e9n, mind az \u00fcl\u00e9sen f\u00e9mb\u0151l k\u00e9sz\u00fclt. A szelep olyan anyagokat haszn\u00e1l, mint a rozsdamentes ac\u00e9l, grafittal ell\u00e1tott ac\u00e9l vagy \u00f6tv\u00f6z\u00f6tt ac\u00e9l fel\u00fcletek, amelyeket Stellite vagy Tungsten Carbide (HVOF elj\u00e1r\u00e1s) bevonattal l\u00e1ttak el.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A f\u00e9m-f\u00e9m \u00e9rintkez\u00e9s nem olyan illeszked\u0151, mint a gumi. A f\u00e9m \u00fcl\u00e9ses szelepek gyakran haszn\u00e1lnak <a href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/single-double-offset-butterfly-valves-differences\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/single-double-offset-butterfly-valves-differences\/\" rel=\"noreferrer noopener\">dupla excenteres<\/a> vagy <a href=\"https:\/\/www.xintaivalves.com\/hu\/products\/triple-eccentric-butterfly-valves\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/products\/triple-eccentric-butterfly-valves\/\" rel=\"noreferrer noopener\">tripla excenteres (TOV)<\/a> geometri\u00e1t a megb\u00edzhat\u00f3 t\u00f6m\u00edt\u00e9s el\u00e9r\u00e9s\u00e9hez. A tripla excenteres szelepek gyakran megfelelnek a <a href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/standard\/understanding-the-standard-api-valve\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/standard\/understanding-the-standard-api-valve\/\" rel=\"noreferrer noopener\">API 609 szabv\u00e1nyoknak<\/a> a nagy teljes\u00edtm\u00e9ny\u0171 pillang\u00f3szelepek sz\u00e1m\u00e1ra.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Az excenteres kialak\u00edt\u00e1s seg\u00edt felemelni a t\u00e1rcs\u00e1t az \u00fcl\u00e9sr\u0151l haszn\u00e1lat k\u00f6zben. Csak n\u00e9h\u00e1ny fokkal \u00e9rintkezik z\u00e1r\u00e1s el\u0151tt. Ez seg\u00edt cs\u00f6kkenteni az \u00fcl\u00e9s kop\u00e1s\u00e1t \u00e9s meghosszabb\u00edtja az \u00e9lettartamot.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00e1sr\u00e9szt a tripla excenteres kialak\u00edt\u00e1s t\u00f6m\u00edt\u0151fel\u00fclete k\u00fapos sz\u00f6get alkot, ahelyett, hogy a szelep k\u00f6zep\u00e9n \u00fclne. Nyit\u00e1skor vagy z\u00e1r\u00e1skor a t\u00e1rcsa \u00e9keli be mag\u00e1t az \u00fcl\u00e9sbe an\u00e9lk\u00fcl, hogy bele s\u00farl\u00f3dna. A t\u00f6m\u00edt\u0151er\u0151 a t\u00e1rcsa v\u00e9gs\u0151 helyzet\u00e9b\u0151l ad\u00f3dik, nem pedig a s\u00farl\u00f3d\u00e1sb\u00f3l.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ez a kialak\u00edt\u00e1s ellen\u00e1ll\u00f3bb\u00e1 teszi a f\u00e9m \u00fcl\u00e9ses szelepet, mint a puha \u00fcl\u00e9ses szelepet. Ellen\u00e1ll a nagynyom\u00e1s\u00fa g\u0151znek, koptat\u00f3 iszapoknak, <a href=\"https:\/\/www.xintaivalves.com\/hu\/blog\/cryogenic-valves\/cryogenic-globe-valve-lng-safety\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/cryogenic-valves\/cryogenic-globe-valve-lng-safety\/\" rel=\"noreferrer noopener\">kriog\u00e9n LNG-nek<\/a>, \u00e9s korroz\u00edv vegyi \u00e1raml\u00e1soknak.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Comparison_Between_Metal_and_Soft-Seated_Valves\"><\/span>\u00d6sszehasonl\u00edt\u00e1s a f\u00e9m \u00e9s a puha \u00fcl\u00e9ses szelepek k\u00f6z\u00f6tt<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/05\/Comparison-Between-Metal-and-Soft-Seated-Valves-1024x512.webp\" alt=\"Kulcsfontoss\u00e1g\u00fa \u00f6sszehasonl\u00edt\u00e1s a puha \u00fcl\u00e9s\u0171 pillang\u00f3szelepek \u00e9s a f\u00e9m \u00fcl\u00e9s\u0171 pillang\u00f3szelepek k\u00f6z\u00f6tt\" class=\"wp-image-15197\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/05\/Comparison-Between-Metal-and-Soft-Seated-Valves-1024x512.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/05\/Comparison-Between-Metal-and-Soft-Seated-Valves-300x150.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/05\/Comparison-Between-Metal-and-Soft-Seated-Valves-768x384.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/05\/Comparison-Between-Metal-and-Soft-Seated-Valves-18x9.webp 18w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/05\/Comparison-Between-Metal-and-Soft-Seated-Valves.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ebben a r\u00e9szben megismerheti az egyes szelept\u00edpusok f\u0151 k\u00fcl\u00f6nbs\u00e9geit. Ez seg\u00edt kiv\u00e1lasztani a legjobb szelept\u00edpust az alkalmaz\u00e1st\u00f3l f\u00fcgg\u0151en.\u00a0<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Sealing_Performance\"><\/span>1. T\u00f6m\u00edt\u00e9si teljes\u00edtm\u00e9ny<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A puha \u00fcl\u00e9ses szelepek nulla l\u00e1that\u00f3 sziv\u00e1rg\u00e1st \u00e9rnek el, ami megfelel az ISO 5208 VI. oszt\u00e1ly\u00fa szabv\u00e1nyoknak. Ez teszi \u0151ket a megfelel\u0151 v\u00e1laszt\u00e1ss\u00e1 v\u00edzeloszt\u00f3 vagy gy\u00f3gyszer\u00e9szeti rendszerek sz\u00e1m\u00e1ra.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Metal seated valves permit minor, controlled leakage, which adheres to ISO 5208 Class IV or Class V standards. These are acceptable in most industrial processes. The benefit of metal seats is that they do not age, swell, or harden as polymers do. This makes them reliable for long-term sealing stability.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Temperature_Range\"><\/span>2. H\u0151m\u00e9rs\u00e9kleti tartom\u00e1ny<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Soft seat valves fail when they go beyond their material limits. EPDM degrades when subjected to temperatures above 120\u00b0C. PTFE is limited to 200\u00b0C. Beyond those temperatures, metal seated valves are required.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Metal seated valves are temperature resistant from -196\u00b0C to 600\u00b0C. Alloy seats can withstand high temperatures, which makes them suitable for power plant steam lines and refinery distillation units.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Austenitic stainless steel can withstand very low temperatures, which makes it suitable for a <strong>cryogenic butterfly valve <\/strong>in LNG terminals and liquefied gas service. PTFE and rubber can freeze and shatter in very low temperatures.\u00a0<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Pressure_Rating\"><\/span>3. Nyom\u00e1s\u00e9rt\u00e9k<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Soft seated valves can operate within PN10 to PN16 pressure classes. This makes them suitable for water supply and light industrial lines.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Metal seated designs can withstand PN25, PN40, and higher pressures. They are suitable for high-pressure steam, gas transmission, and hydraulic systems.\u00a0<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Abrasion_and_Corrosion_Resistance\"><\/span>4. Kop\u00e1s- \u00e9s korr\u00f3zi\u00f3\u00e1ll\u00f3s\u00e1g<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Soft seat valves are prone to erosion and abrasion. Particles such as fine sand or catalyst fines scratch the soft seats and cause premature leakage in rubber or PTFE-seated valves.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Metal seats coated with Stellite (cobalt-chromium alloy) are resistant to particle erosion. The coatings protect against chemical attack in acid, alkali, and oxidizing environments.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Service_Life_and_Maintenance\"><\/span>5. \u00c9lettartam \u00e9s karbantart\u00e1s<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Normally, a soft-seated valve lasts three to five years before the seat needs replacement. The soft seat is easier to replace than a machined metal seat. However, soft seats degrade faster in harsh conditions and require more frequent maintenance.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Metal seats last more than ten years in demanding service due to their protective coatings. Repairs are more expensive, but maintenance intervals are longer.\u00a0<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Cost\"><\/span>6. K\u00f6lts\u00e9g<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Soft seated valves are 30% to 50% cheaper because their material and machining requirements are simpler. Metal seated designs are more expensive. They require precision machining of offset geometries and application of wear-resistant coatings.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If your project has high-temperature or abrasive service, it is more cost-effective to invest in a metal valve seat. This results in reduced downtime and fewer replacements.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7_Structural_Differences\"><\/span>7. Szerkezeti k\u00fcl\u00f6nbs\u00e9gek<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Soft seated valves typically utilize a concentric (centerline) design where the disc and stem share the same axis. On the other hand, metal seated models use double or triple eccentric geometries. This helps minimize seat contact during the stroke, which is vital for maintaining a durable metal-to-metal seal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Because the disc wedges firmly into the metal seat, these designs require higher operating torque. Consequently, a <strong>pillang\u00f3szelep m\u0171k\u00f6dtet\u0151vel<\/strong> f\u00e9m \u00fcl\u00e9ses szerelv\u00e9nyekn\u00e9l alapfelszerelts\u00e9g.\u00a0<\/p>\n\n\n\n<style>\n  .hero-card {\n    display: flex;\n    flex-wrap: wrap;\n    align-items: center;\n    background: #f7f8fa;\n    border-radius: 16px;\n    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);\n    padding: 24px;\n    max-width: 900px;\n    margin: 40px auto;\n    font-family: Arial, sans-serif;\n    text-decoration: none;\n    color: inherit;\n    font-family: 'Poppins';\n    transition: transform 0.2s ease-in-out;\n  }\n\n  .hero-card:hover {\n    transform: translateY(-2px);\n  }\n\n  .hero-image {\n    width: 220px;\n    height: auto;\n    border-radius: 12px;\n    object-fit: cover;\n    flex-shrink: 0;\n  }\n\n  .hero-content {\n    padding-left: 24px;\n    flex: 1;\n    min-width: 260px;\n  }\n\n  .hero-title {\n    font-size: 1.6rem;\n    font-weight: bold;\n    margin-bottom: 12px;\n    color: #222;\n    font-family: 'Poppins';\n  }\n\n  .hero-description {\n    font-size: 1rem;\n    color: #555;\n    margin-bottom: 18px;\n    line-height: 1.5;\n  }\n\n  .hero-link {\n    display: inline-block;\n    padding: 10px 20px;\n    background-color: #D70C19;\n    color: #fff;\n    text-decoration: none;\n    border-radius: 8px;\n    font-weight: bold;\n    transition: background 0.2s ease-in-out;\n  }\n\n  .hero-link:hover {\n    background-color: #b30a15;\n  }\n\n  @media (max-width: 640px) {\n    .hero-card {\n      flex-direction: column;\n      text-align: center;\n    }\n\n    .hero-content {\n      padding-left: 0;\n      padding-top: 20px;\n    }\n\n    .hero-image {\n      width: 100%;\n      max-width: 280px;\n    }\n  }\n<\/style>\n\n<a class=\"hero-card\" href=\"https:\/\/www.xintaivalves.com\/hu\/products\/centerline-wafer-type-butterfly-valve\/\" target=\"_blank\" rel=\"noopener\">\n  <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/xintaivalves.com\/wp-content\/uploads\/2022\/02\/%E6%9C%AA%E6%A0%87%E9%A2%98-2-1.jpg\" alt=\"CENTERLINE OSTYA T\u00cdPUS\u00da PUHA T\u00d6M\u00cdT\u00c9S PILLANG\u00d3SZELEP\">\n  <div class=\"hero-content\">\n    <div class=\"hero-title\">CENTERLINE OSTYA T\u00cdPUS\u00da PUHA T\u00d6M\u00cdT\u00c9S PILLANG\u00d3SZELEP<\/div>\n    <div class=\"hero-description\">\n      A pillang\u00f3szelepek alacsony profil\u00fa eszk\u00f6z\u00f6k, amelyeket ipari folyamatokban haszn\u00e1lnak. Viszonylag v\u00e9konyak, ami azt jelenti, hogy kevesebb helyet foglalhatnak el a cs\u0151vezet\u00e9kekben, mint m\u00e1s t\u00edpus\u00fa szelepek.\n    <\/div>\n    <span class=\"hero-link\">Fedezze fel a term\u00e9keket \u00e9s megold\u00e1sokat<\/span>\n  <\/div>\n<\/a>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Industry_Applications_Metal_Seated_and_Soft_Seated_Valves\"><\/span>Ipari alkalmaz\u00e1sok: F\u00e9m \u00fcl\u00e9ses \u00e9s puha \u00fcl\u00e9ses szelepek<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ez a t\u00e1bl\u00e1zat \u00f6sszefoglalja azokat a gyakori alkalmaz\u00e1sokat, ahol f\u00e9m \u00fcl\u00e9ses \u00e9s puha \u00fcl\u00e9ses szelepeket haszn\u00e1lnak:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Ipar\u00e1g Kateg\u00f3ria<\/strong><\/td><td><strong>Puha \u00fcl\u00e9ses szelepek<\/strong><\/td><td><strong>F\u00e9m \u00fcl\u00e9ses szelepek<\/strong><\/td><\/tr><tr><td>V\u00edzkezel\u00e9s&nbsp;<\/td><td>Telep\u00fcl\u00e9si v\u00edz- \u00e9s szennyv\u00edzkezel\u00e9s<\/td><td>\u00c1ltal\u00e1ban nem sz\u00fcks\u00e9ges; kiv\u00e9ve magas nyom\u00e1s\/h\u0151m\u00e9rs\u00e9klet eset\u00e9n.<\/td><\/tr><tr><td>Energia \u00e9s \u00fczemanyag<\/td><td>Nem aj\u00e1nlott magas h\u0151m\u00e9rs\u00e9klet\u0171 \u00fczemanyagokhoz.<\/td><td>Olaj- \u00e9s g\u00e1ztiszt\u00edt\u00f3 \u00fczemek, k\u0151olajvezet\u00e9kek \u00e9s g\u00e1zsz\u00e1ll\u00edt\u00f3 vezet\u00e9kek.<\/td><\/tr><tr><td>\u00c1ramtermel\u00e9s<\/td><td>Korl\u00e1tozottan haszn\u00e1lhat\u00f3 alacsony h\u0151m\u00e9rs\u00e9klet\u0171 k\u00f6z\u00fczemi v\u00edzhez.<\/td><td>T\u00falhev\u00edtett g\u0151zvezet\u00e9kek, kaz\u00e1nt\u00e1pl\u00e1l\u00f3 v\u00edz \u00e9s f\u00fcstg\u00e1zrendszerek.<\/td><\/tr><tr><td>Vegyi \u00e9s gy\u00f3gyszeripar<\/td><td>\u00c9lelmiszer, ital, gy\u00f3gyszer (FDA-kompatibilis) \u00e9s k\u00f6nny\u0171 vegyi feldolgoz\u00e1s.<\/td><td>Petrok\u00e9miai \u00fczemek, nagynyom\u00e1s\u00fa korroz\u00edv k\u00f6zegek \u00e9s t\u0171z\u00e1ll\u00f3 kivitelek.<\/td><\/tr><tr><td>Neh\u00e9zipar<\/td><td>Nem alkalmas koptat\u00f3 k\u00f6zegekhez.<\/td><td>B\u00e1ny\u00e1szat, koh\u00e1szat, iszapsz\u00e1ll\u00edt\u00e1s, hamukezel\u00e9s \u00e9s \u00e9rctiszt\u00edt\u00e1s.<\/td><\/tr><tr><td>Speci\u00e1lis alkalmaz\u00e1sok<\/td><td>Extr\u00e9m hidegben meghib\u00e1sodik.<\/td><td>Kriog\u00e9n pillang\u00f3szelepes alkalmaz\u00e1sok (pl. LNG szolg\u00e1ltat\u00e1s -196\u00b0C-on).<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>K\u00f6vetkeztet\u00e9s<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A megfelel\u0151 szelep kiv\u00e1laszt\u00e1sa nagyban f\u00fcgg a specifikus \u00fczemi k\u00f6r\u00fclm\u00e9nyekt\u0151l. A puha \u00fcl\u00e9ses kialak\u00edt\u00e1sok nulla sziv\u00e1rg\u00e1st \u00e9s alacsonyabb k\u00f6lts\u00e9geket k\u00edn\u00e1lnak m\u00e9rs\u00e9kelt h\u0151m\u00e9rs\u00e9klet\u0171 \u00e9s tiszta rendszerek eset\u00e9n. A f\u00e9m \u00fcl\u00e9ses kialak\u00edt\u00e1sok tart\u00f3ss\u00e1got \u00e9s ellen\u00e1ll\u00e1st biztos\u00edtanak koptat\u00f3, magas h\u0151m\u00e9rs\u00e9klet\u0171 vagy kriog\u00e9n k\u00f6zegek eset\u00e9n.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A prec\u00edzi\u00f3s m\u00e9rn\u00f6ki munka tapasztalt <strong>f\u00e9m \u00fcl\u00e9ses pillang\u00f3szelep gy\u00e1rt\u00f3kkal val\u00f3 partners\u00e9gre t\u00e1maszkodik. <\/strong>Ez biztos\u00edtja a tan\u00fas\u00edtott anyagokhoz \u00e9s nyomon k\u00f6vethet\u0151 bevonatokhoz val\u00f3 hozz\u00e1f\u00e9r\u00e9st. A <strong>f\u00e9m \u00fcl\u00e9ses pillang\u00f3szelep \u00e1ra<\/strong> anyagt\u00f3l \u00e9s bonyolults\u00e1gt\u00f3l f\u00fcgg\u0151en v\u00e1ltozhat, de a hossz\u00fa t\u00e1v\u00fa \u00e9lettartam igazolja a befektet\u00e9st.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A Xintai Valves, k\u00fcl\u00f6nf\u00e9le ipari szelepek gy\u00e1rt\u00f3ja, k\u00fcl\u00f6nf\u00e9le <strong>f\u00e9m \u00fcl\u00e9ses pillang\u00f3szelep m\u00e9reteket<\/strong> k\u00edn\u00e1l projektj\u00e9hez. Vegye fel vel\u00fcnk a kapcsolatot szak\u00e9rt\u0151i m\u0171szaki t\u00e1mogat\u00e1s\u00e9rt.\u00a0<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color has-medium-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/www.xintaivalves.com\/hu\/contact\/\" style=\"background-color:#b30a15\" target=\"_blank\" rel=\"noreferrer noopener\">Ingyenes \u00e1raj\u00e1nlat k\u00e9r\u00e9se<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>In industrial flow control, butterfly valves play an important role in water treatment plants and power grids.\u00a0 As an engineer or procurement specialist, deciding between a metal-seated butterfly valve and a soft-seated butterfly valve is crucial. Choosing the wrong sealing material can lead to premature leaks, costly unplanned shutdowns, and serious safety risks.\u00a0 This article [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":15198,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-15195","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-butterfly-valve"],"_links":{"self":[{"href":"https:\/\/www.xintaivalves.com\/hu\/wp-json\/wp\/v2\/posts\/15195","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xintaivalves.com\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xintaivalves.com\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/hu\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/hu\/wp-json\/wp\/v2\/comments?post=15195"}],"version-history":[{"count":4,"href":"https:\/\/www.xintaivalves.com\/hu\/wp-json\/wp\/v2\/posts\/15195\/revisions"}],"predecessor-version":[{"id":15202,"href":"https:\/\/www.xintaivalves.com\/hu\/wp-json\/wp\/v2\/posts\/15195\/revisions\/15202"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/hu\/wp-json\/wp\/v2\/media\/15198"}],"wp:attachment":[{"href":"https:\/\/www.xintaivalves.com\/hu\/wp-json\/wp\/v2\/media?parent=15195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/hu\/wp-json\/wp\/v2\/categories?post=15195"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/hu\/wp-json\/wp\/v2\/tags?post=15195"}],"curies":[{"name":"munkaf\u00fczet","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}