{"id":252,"date":"2018-05-23T13:22:06","date_gmt":"2018-05-23T11:22:06","guid":{"rendered":"http:\/\/www.prometal.dk\/?page_id=252"},"modified":"2019-09-10T15:29:30","modified_gmt":"2019-09-10T13:29:30","slug":"skydeventiler","status":"publish","type":"page","link":"https:\/\/www.prometal.dk\/?page_id=252","title":{"rendered":"Skydeventiler"},"content":{"rendered":"<h1>SKYDEVENTILER<\/h1>\n<p>ProMetal leverer skydeventiler fra \u00bd\u201d (DN25) og opefter i mange forskellige designs.<\/p>\n<p>Skydeventiler er designet til afsp\u00e6rring og er derfor enten helt lukkede eller helt \u00e5bne. Der findes dog enkelte varianter af designs \u2013 f.eks. \u201dV port seat\u201d, som bruges til mindre reguleringsopgaver, hvor der ikke er krav om stor n\u00f8jagtighed. En skydeventil anvendes ofte n\u00e5r det er n\u00f8dvendigt med et minimalt tryktab og fuldt genneml\u00f8b.<\/p>\n<p>Betjeningen af skydeventilen sker ved hj\u00e6lp af en gevindsk\u00e5ret spindel, som, n\u00e5r denne betjenes, f\u00e5r skyderen til at bev\u00e6ge sig opad eller nedad p\u00e5 spindlen. Denne proces g\u00f8r at skydeventilen ogs\u00e5 kaldes for en \u201dmulti-turn ventil\u201d. N\u00e5r spindlen roteres i urets retning, lukkes ventilen. Dette kaldes CTC. Omvendt kaldes det CTO, n\u00e5r ventilen \u00e5bner ved at spindlen roteres mod urets retning.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-400 alignleft\" src=\"https:\/\/www.prometal.dk\/wp-content\/uploads\/2018\/06\/ProMetal-Ventiler-MSA-Skydeventiler-185x300.png\" alt=\"P\u00e5 billedet ses en bl\u00e5 MSA skydeventil\" width=\"185\" height=\"300\" srcset=\"https:\/\/www.prometal.dk\/wp-content\/uploads\/2018\/06\/ProMetal-Ventiler-MSA-Skydeventiler-185x300.png 185w, https:\/\/www.prometal.dk\/wp-content\/uploads\/2018\/06\/ProMetal-Ventiler-MSA-Skydeventiler.png 264w\" sizes=\"auto, (max-width: 185px) 100vw, 185px\" \/> \u00a0Ventilerne kan benyttes til alle slags applikationer b\u00e5de i installationer over jord og i nedgravede installationer. Skal den anvendes i en installation under jorden er det afg\u00f8rende at finde den rigtige ventil, da de i modsat fald vil resultere i h\u00f8je udskiftningsomkostninger.<\/p>\n<p>Skydeventilerne har den ulempe at de optager forholdsvis meget plads i h\u00f8jden, men den fordel at de har forholdsvis lidt tryktab over ventilen n\u00e5r den er \u00e5ben. Samtidig har de den fordel at de er \u201dbi-directional\u201d, alts\u00e5 kan flowe i begge retninger.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-399 alignright\" src=\"https:\/\/www.prometal.dk\/wp-content\/uploads\/2018\/06\/ProMetal-Ventiler-MSA-Skydeventiler-2-107x300.png\" alt=\"Her ses en bl\u00e5 MSA skydeventil\" width=\"107\" height=\"300\" srcset=\"https:\/\/www.prometal.dk\/wp-content\/uploads\/2018\/06\/ProMetal-Ventiler-MSA-Skydeventiler-2-107x300.png 107w, https:\/\/www.prometal.dk\/wp-content\/uploads\/2018\/06\/ProMetal-Ventiler-MSA-Skydeventiler-2.png 262w\" sizes=\"auto, (max-width: 107px) 100vw, 107px\" \/><\/p>\n<p>Skydeventiler er ogs\u00e5 forholdsvis langsomme til at \u00e5bne, og ved st\u00f8rre ventilst\u00f8rrelser kr\u00e6ver de oftest en\u00a0<a href=\"https:\/\/www.prometal.dk\/aktuatorer-til-ventiler\/\">aktuator<\/a>. Det er ogs\u00e5 det ventildesign som er sv\u00e6rest at reparere og vedligeholde imens de sidder i r\u00f8rsystemet. Det kan dog lade sig g\u00f8re, og <a href=\"https:\/\/www.global.weir\/services\/flow-control-service-catalogue\/control-valve-services\/\">Weir Services<\/a> i England har specialiseret sig i at udskifte s\u00e6der p\u00e5 st\u00f8rre indsvejsede skydeventiler.<\/p>\n<p><strong>Design:<\/strong><\/p>\n<ul>\n<li>Parallel skydeventil, prim\u00e6rt til damp<\/li>\n<li>Uni-flow parallel skydeventil, prim\u00e6rt til dr\u00e6nfunktioner<\/li>\n<li>Through conduit gate valve, skydeventil ofte brugt offshore til \u201cpigging\u201d (ventiler der kan uds\u00e6ttes for skidt)<\/li>\n<li>Wedge type gate valve (solid, hollow, slapp gate, split and flexible wedge gate)<\/li>\n<li>Non-rising stem \/ rising stem gate valves<\/li>\n<\/ul>\n<p>Er I stadig i tvivl om, hvilken skydeventil I skal anvende til jeres applikation? <a href=\"https:\/\/www.prometal.dk\/kontakt\/\">Kontakt ProMetal for yderligere information og hj\u00e6lp til skydeventiler.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>SKYDEVENTILER ProMetal leverer skydeventiler fra \u00bd\u201d (DN25) og opefter i mange forskellige designs. Skydeventiler er designet til afsp\u00e6rring og er derfor enten helt lukkede eller helt \u00e5bne. Der findes dog enkelte varianter af designs \u2013 f.eks. \u201dV port seat\u201d, som bruges til mindre reguleringsopgaver, hvor der ikke er krav om stor n\u00f8jagtighed. En skydeventil anvendes&hellip;<\/p>\n<p class=\"more-link\"><a href=\"https:\/\/www.prometal.dk\/?page_id=252\" class=\"themebutton2\">Read More<\/a><\/p>\n","protected":false},"author":2,"featured_media":585,"parent":237,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"tmpl-page-sidebar.php","meta":{"footnotes":""},"class_list":["post-252","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Skydeventiler til afsp\u00e6rring, i forskellige designs - ProMetal A\/S<\/title>\n<meta name=\"description\" content=\"Skydeventiler er designet til afsp\u00e6rring og er derfor enten helt lukket eller helt \u00e5bne. ProMetal A\/S leverer skydeventiler i mange forskellige designs.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.prometal.dk\/?page_id=252\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Skydeventiler til afsp\u00e6rring, i forskellige designs - ProMetal A\/S\" \/>\n<meta property=\"og:description\" content=\"Skydeventiler er designet til afsp\u00e6rring og er derfor enten helt lukket eller helt \u00e5bne. 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