{"id":3154,"date":"2024-11-08T08:49:59","date_gmt":"2024-11-08T08:49:59","guid":{"rendered":"https:\/\/procamlock.com\/ball-valve-overview-from-structure-material-to-type-selection\/"},"modified":"2025-08-22T08:04:48","modified_gmt":"2025-08-22T08:04:48","slug":"palloventtiilin-yleiskatsaus-rakenteen-materiaalista-tyypin-valintaan","status":"publish","type":"post","link":"https:\/\/procamlock.com\/fi\/ball-valve-overview-from-structure-material-to-type-selection\/","title":{"rendered":"Palloventtiilin yleiskatsaus: rakenteesta ja materiaalista tyyppiin ja valintaan"},"content":{"rendered":"<p>Palloventtiili on venttiili, jota k\u00e4ytet\u00e4\u00e4n laajalti putkistoissa, nesteiss\u00e4 tai kaasuissa. Se on nimetty venttiilin naksahdustyypin mukaan, ja sit\u00e4 k\u00e4ytet\u00e4\u00e4n yleisesti erilaisissa vesihuoltoputkistoissa ja kasteluj\u00e4rjestelmiss\u00e4 nesteiden tai kaasujen virtauksen s\u00e4\u00e4t\u00e4miseen. V\u00e4liaineen kulkua s\u00e4\u00e4det\u00e4\u00e4n tai estet\u00e4\u00e4n yleens\u00e4 avaamalla ja sulkemalla palloventtiili\u00e4.\u00a0<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">Perusrakenne<\/h2>\r\n\r\n\r\n\r\n<p>Palloventtiili koostuu p\u00e4\u00e4asiassa venttiilin varresta, pallosta, venttiilin istukasta, tiivisterenkaasta ja kotelosta.\u00a0<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>Venttiilin varsi<\/strong>: K\u00e4ytet\u00e4\u00e4n palloventtiilin avaamiseen tai sulkemiseen. Kun venttiilin varsi on yhdensuuntainen venttiilin rungon kanssa, palloventtiili on auki. Kun venttiilin varsi on kohtisuorassa venttiilin runkoon n\u00e4hden, palloventtiili on kiinni.\u00a0<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>Pallo<\/strong>Venttiilin sis\u00e4ll\u00e4 on pallo, jossa on reik\u00e4. Pallon rei\u00e4n suuntaa s\u00e4\u00e4det\u00e4\u00e4n v\u00e4liaineen kulun hallitsemiseksi tai est\u00e4miseksi.\u00a0<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>Venttiilin istukka<\/strong>Venttiilin istukka sijaitsee yleens\u00e4 venttiilin sis\u00e4ll\u00e4 pallon ymp\u00e4rill\u00e4, tukee palloa ja varmistaa, ett\u00e4 pallo ja venttiili muodostavat tiiviin tiivistyksen.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>Tiivisterengas<\/strong>Yleens\u00e4 sijaitsee venttiilin varren ja venttiilirungon v\u00e4liss\u00e4 varmistaen, ett\u00e4 v\u00e4liaine ei vuoda venttiilin varren suunnasta.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>Asuminen<\/strong>K\u00e4ytet\u00e4\u00e4n kaikkien palloventtiilin osien tukemiseen ja suojaamiseen.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">Materiaalivalinta<\/h2>\r\n\r\n\r\n\r\n<p>Yleens\u00e4 eri materiaaleista valmistetut palloventtiilit valitaan eri k\u00e4ytt\u00f6ymp\u00e4rist\u00f6jen ja siirtov\u00e4liainetyyppien mukaan.\u00a0<\/p>\r\n\r\n\r\n\r\n<p>Yleisi\u00e4 palloventtiilien materiaalityyppej\u00e4 ovat: ruostumaton ter\u00e4s, hiiliter\u00e4s, messinki ja muovi jne.\u00a0<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>Ruostumaton ter\u00e4s<\/strong>Sill\u00e4 on erinomainen korroosionkest\u00e4vyys ja korkean l\u00e4mp\u00f6tilan kest\u00e4vyys. Se soveltuu eritt\u00e4in hyvin k\u00e4ytett\u00e4v\u00e4ksi korkeissa l\u00e4mp\u00f6tiloissa ja paineissa sek\u00e4 sy\u00f6vytt\u00e4vi\u00e4 nesteit\u00e4 sis\u00e4lt\u00e4viss\u00e4 ymp\u00e4rist\u00f6iss\u00e4. Sit\u00e4 k\u00e4ytet\u00e4\u00e4n usein esimerkiksi \u00f6ljy-, kemian- ja meriteollisuudessa.\u00a0<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-1043\" src=\"https:\/\/procamlock.com\/wp-content\/uploads\/2024\/11\/ss-ball-valve-2.jpg\" alt=\"\" \/><\/figure>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>hiiliter\u00e4s<\/strong>Ruostumattomaan ter\u00e4kseen verrattuna sill\u00e4 on huono korroosionkest\u00e4vyys, mutta hyv\u00e4 lujuus ja se soveltuu k\u00e4ytett\u00e4v\u00e4ksi ymp\u00e4rist\u00f6iss\u00e4, joissa on alhainen korroosioaltistus. Sit\u00e4 k\u00e4ytet\u00e4\u00e4n yleens\u00e4 teollisuudenaloilla, joilla on alhainen korroosioaltistus, kuten vesihuollossa ja maakaasussa.\u00a0<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>Messinki<\/strong>Hyv\u00e4 korroosionkest\u00e4vyys, soveltuu k\u00e4ytett\u00e4v\u00e4ksi keski- ja matalapaineymp\u00e4rist\u00f6iss\u00e4, yleisesti kotitalouksien vesijohtoputkissa, ilmastointi- ja LVI-j\u00e4rjestelmiss\u00e4.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>Muovi<\/strong>Kevyt, eritt\u00e4in kannettava, korroosionkest\u00e4v\u00e4 ja kustannustehokas. K\u00e4ytet\u00e4\u00e4n yleisesti keski- ja matalapaine- ja l\u00e4mp\u00f6tilaymp\u00e4rist\u00f6iss\u00e4 vedenk\u00e4sittelyj\u00e4rjestelmiss\u00e4, maatalouden kasteluj\u00e4rjestelmiss\u00e4 ja kotitalouksien vesij\u00e4rjestelmiss\u00e4.\u00a0<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">Toimintaperiaate<\/h2>\r\n\r\n\r\n\r\n<p>Palloventtiilin avautumista ja sulkeutumista ohjataan yl\u00e4puolella olevalla venttiilin varrella. Venttiilin varsi voi ohjata palloventtiilin sis\u00e4ll\u00e4 olevaa rei&#039;itetty\u00e4 palloa py\u00f6rim\u00e4\u00e4n 90\u00b0 kulmassa, jotta voidaan m\u00e4\u00e4ritt\u00e4\u00e4, p\u00e4\u00e4seek\u00f6 neste kulkemaan sen l\u00e4pi vai tukkiiko se.\u00a0<\/p>\r\n\r\n\r\n\r\n<p>Kun venttiilin varren suunta on palloventtiilin suuntainen, palloventtiili on avoimessa tilassa ja sis\u00e4inen neste voi kulkea esteett\u00e4. Kun venttiilin varren suunta on kohtisuorassa palloventtiiliin n\u00e4hden, palloventtiili on suljetussa tilassa ja sis\u00e4isen nesteen virtaus on katkaistu eik\u00e4 neste p\u00e4\u00e4se kulkemaan.\u00a0<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">Palloventtiilityypit<\/h2>\r\n\r\n\r\n\r\n<p>Eri k\u00e4ytt\u00f6tapojen mukaan palloventtiilit voidaan jakaa manuaalisiin palloventtiileihin, s\u00e4hk\u00f6isiin palloventtiileihin, pneumaattisiin palloventtiileihin, hydraulisiin palloventtiileihin ja pneumaattis-hydraulisiin palloventtiileihin.\u00a0<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-1044\" src=\"https:\/\/procamlock.com\/wp-content\/uploads\/2024\/11\/ball-valve-2.jpg\" alt=\"\" \/><\/figure>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">Manuaalinen palloventtiili<\/h3>\r\n\r\n\r\n\r\n<p>Se on yleisin palloventtiilityyppi. Venttiilin vartta k\u00e4ytet\u00e4\u00e4n manuaalisesti palloventtiilin avaamisen ja sulkemisen ohjaamiseksi. Se sopii matalapaineisiin, pienihalkaisijaisiin kotitalouksien vesiputkij\u00e4rjestelmiin jne. Manuaalisella palloventtiilill\u00e4 on yksinkertainen rakenne ja helppok\u00e4ytt\u00f6isyys, mutta se ei sovellu j\u00e4rjestelmiin, jotka vaativat kauko-ohjausta.\u00a0<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">S\u00e4hk\u00f6inen palloventtiili<\/h3>\r\n\r\n\r\n\r\n<p>Venttiilin varsi toimii s\u00e4hk\u00f6ll\u00e4, joka ohjaa palloventtiilin avautumista ja sulkeutumista. S\u00e4hk\u00f6iset palloventtiilit soveltuvat neste- ja kaasunsiirtoj\u00e4rjestelmiin, jotka vaativat kauko-ohjausta, ja niit\u00e4 k\u00e4ytet\u00e4\u00e4n yleisesti esimerkiksi \u00f6ljy-, kemian- ja maakaasuteollisuudessa.\u00a0<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">Pneumaattinen palloventtiili<\/h3>\r\n\r\n\r\n\r\n<p>Venttiilin karaa k\u00e4ytt\u00e4\u00e4 ja k\u00e4ytt\u00e4\u00e4 paineilma, ja avautumis- ja sulkeutumisnopeudet ovat eritt\u00e4in nopeita. Pneumaattiset kuulaventtiilit soveltuvat tehokkaisiin siirtoj\u00e4rjestelmiin, jotka vaativat nopeaa toimintaa, ja niit\u00e4 voidaan k\u00e4ytt\u00e4\u00e4 my\u00f6s syttyviss\u00e4 ja r\u00e4j\u00e4hdysherkiss\u00e4 ymp\u00e4rist\u00f6iss\u00e4. Niit\u00e4 k\u00e4ytet\u00e4\u00e4n yleisesti kemian-, l\u00e4\u00e4ke- ja muiden teollisuudenalojen automaatioj\u00e4rjestelmiss\u00e4.\u00a0<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">Hydraulinen palloventtiili<\/h3>\r\n\r\n\r\n\r\n<p>Palloventtiilin avaamista ja sulkemista ohjataan hydraulisella k\u00e4ytt\u00f6laitteella, mik\u00e4 soveltuu erityisesti k\u00e4ytett\u00e4v\u00e4ksi korkeapaineymp\u00e4rist\u00f6iss\u00e4 ja tarkkoja ohjausymp\u00e4rist\u00f6j\u00e4 vaativissa ymp\u00e4rist\u00f6iss\u00e4. Hydraulisia palloventtiilej\u00e4 k\u00e4ytet\u00e4\u00e4n laajalti suurissa ja monimutkaisissa laitteissa ja j\u00e4rjestelmiss\u00e4.\u00a0<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">Pneumaattis-hydraulinen palloventtiili<\/h3>\r\n\r\n\r\n\r\n<p>Pneumaattisesti hydraulisella kuulaventtiilill\u00e4 on sek\u00e4 pneumaattisten ett\u00e4 hydraulisten kuulaventtiilien edut, ja se ohjaa kuulaventtiilin avautumista ja sulkeutumista paineilman ja hydraulisen paineen yhdistelm\u00e4ll\u00e4. Se sopii ymp\u00e4rist\u00f6ihin, joissa on korkeat vaatimukset j\u00e4rjestelm\u00e4n turvallisuudelle ja vakaudelle, ja sit\u00e4 k\u00e4ytet\u00e4\u00e4n usein esimerkiksi petrokemian j\u00e4rjestelmiss\u00e4.\u00a0<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">Valintapisteet<\/h2>\r\n\r\n\r\n\r\n<p>Palloventtiili\u00e4 valittaessa on otettava huomioon monia tekij\u00f6it\u00e4 sen varmistamiseksi, ett\u00e4 se t\u00e4ytt\u00e4\u00e4 vastaavan j\u00e4rjestelm\u00e4n erilaiset vaatimukset. Seuraavassa on joitakin yleisi\u00e4 huomioitavia seikkoja.\u00a0<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>Nestem\u00e4inen v\u00e4liaine<\/strong>Ennen palloventtiilin valintaa on ensin m\u00e4\u00e4ritett\u00e4v\u00e4 nestev\u00e4liaineen tyyppi varmistaakseen, ett\u00e4 valittu palloventtiilimateriaali on yhteensopiva siirrett\u00e4v\u00e4n v\u00e4liaineen kanssa tai sy\u00f6pynyt.\u00a0<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>K\u00e4ytt\u00f6paine ja l\u00e4mp\u00f6tila-alue<\/strong>Joillakin palloventtiileill\u00e4 on rajoitettu paineenkest\u00e4vyys ja sovellettava l\u00e4mp\u00f6tila-alue, joten sinun on vahvistettava tiedot ennen valintaa, jotta v\u00e4lt\u00e4t sopimattoman palloventtiilin valitsemisen.\u00a0<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>Maksaa<\/strong>Jos kyseess\u00e4 on perinteinen sovellusymp\u00e4rist\u00f6, voit valita perinteisen kustannustehokkaan manuaalisen kuulaventtiilin pit\u00e4\u00e4ksesi kustannusbudjetin hallittavissa rajoissa. Jos kyseess\u00e4 on kuitenkin sovellusj\u00e4rjestelm\u00e4, jolla on korkeat kuulaventtiilin suorituskykyvaatimukset, sinun on valittava vastaava kuulaventtiili. Et saa valita edullista kuulaventtiili\u00e4, joka ei t\u00e4yt\u00e4 vaatimuksia, koska se johtaa vain huonoihin tuloksiin.\u00a0<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">Johtop\u00e4\u00e4t\u00f6s<\/h2>\r\n\r\n\r\n\r\n<p>Palloventtiilej\u00e4 on saatavilla monenlaisista materiaaleista ja tyypeist\u00e4. Kun valitset palloventtiilin toimialallesi tai j\u00e4rjestelm\u00e4llesi, voit k\u00e4\u00e4nty\u00e4 ammattitaitoisen tiimimme puoleen. Tarjoamme sinulle sopivimman palloventtiilin tarpeidesi mukaan varmistaaksemme j\u00e4rjestelm\u00e4si vakaan toiminnan.<\/p>","protected":false},"excerpt":{"rendered":"<p>A ball valve is a valve widely used in pipe fluid or gas transmission systems. It is named after its [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":3043,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"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":"","ast-disable-related-posts":"","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":[5],"tags":[],"class_list":["post-3154","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech-support"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ball Valve Overview: from Structure &amp; 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