{"id":16710,"date":"2022-06-23T02:55:43","date_gmt":"2022-06-23T02:55:43","guid":{"rendered":"https:\/\/zecovalve.com\/?p=16710"},"modified":"2023-02-23T06:33:10","modified_gmt":"2023-02-23T06:33:10","slug":"selection-standards-of-cast-steel-globe-valve","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/de\/selection-standards-of-cast-steel-globe-valve.html","title":{"rendered":"Auswahlstandards f\u00fcr Durchgangsventile aus Stahlguss"},"content":{"rendered":"<p>Das Absperrventil aus Stahlguss ist eines der am h\u00e4ufigsten verwendeten Ventile. Der Grund f\u00fcr seine Beliebtheit liegt darin, dass die Reibung zwischen den Dichtfl\u00e4chen beim \u00d6ffnen und Schlie\u00dfen gering ist, was zu einer l\u00e4ngeren Lebensdauer f\u00fchrt, die \u00d6ffnungsh\u00f6he nicht gro\u00df ist, die Herstellung einfach ist und die Wartung bequem ist. Es ist nicht nur f\u00fcr mittlere und niedrige Dr\u00fccke, sondern auch f\u00fcr hohe Dr\u00fccke geeignet.<\/p>\n\n\n\n\n\n<p>Das Schlie\u00dfprinzip des Absperrventils aus Stahlguss besteht darin, dass die Dichtfl\u00e4che der Scheibe und die Dichtfl\u00e4che des Ventilsitzes aufgrund des Drucks des Ventilschafts eng aneinander anliegen, um den Durchfluss des Mediums zu verhindern.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-structures-of-the-cast-steel-globe-valve\">\u2160. Strukturen des Absperrventils aus Stahlguss<\/h2>\n\n\n\n<p>Die L\u00e4nge ist gr\u00f6\u00dfer als die des Absperrschiebers, der Fl\u00fcssigkeitswiderstand ist gro\u00df und die Dichtungszuverl\u00e4ssigkeit ist bei Langzeitbetrieb nicht hoch.<\/p>\n\n\n\n<p>Als eines der wichtigsten Absperrventile spielt das Absperrventil aus Stahlguss eine wichtige Rolle im Luft- und Raumfahrtbereich. Als wichtiger Bestandteil von Luft- und Raumfahrtger\u00e4ten erf\u00fcllt das Absperrventil aus Stahlguss die Funktionen des Medientransports, der Absperrung und der Einstellung, und seine Dichtungsleistung wirkt sich direkt auf den sicheren und zuverl\u00e4ssigen Betrieb von Luft- und Raumfahrtger\u00e4ten aus.<\/p>\n\n\n\n<p>Die Untersuchung der Einflussfaktoren und Regeln der Dichtungseigenschaften typischer Absperrventile aus Stahlguss hat eine richtungsweisende Bedeutung f\u00fcr die strukturelle Gestaltung des Ventildichtungspaars und verbessert dadurch die Dichtungsleistung und Zuverl\u00e4ssigkeit des Ventils.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-the-selection-standard-of-the-cast-steel-globe-valve\">\u2161. Was ist der Auswahlstandard f\u00fcr Absperrventile aus Gussstahl?<\/h2>\n\n\n\n<ol class=\"wp-block-list\"><li>F\u00fcr Rohrleitungen oder Ger\u00e4te mit Hochtemperatur- und Hochdruckmedien sollten Absperrventile aus Stahlguss gew\u00e4hlt werden. Beispielsweise eignen sich Absperrventile aus Stahlguss f\u00fcr Hochtemperatur- und Hochdruckleitungen von W\u00e4rmekraftwerken und petrochemischen Systemen.<\/li><li>An Rohrleitungen, an denen keine strengen Anforderungen an die Konvektionsbest\u00e4ndigkeit gestellt werden, d.\u00a0h. an Stellen, an denen der Druckverlust nicht ber\u00fccksichtigt wird.<\/li><li>F\u00fcr kleine Ventile wie Nadelventile, Instrumentenventile, Probenahmeventile, Druckmessventile usw. k\u00f6nnen Absperrventile aus Stahlguss ausgew\u00e4hlt werden.<\/li><li>Es gibt eine Durchfluss- oder Druckeinstellung, aber die Anforderungen an die Einstellgenauigkeit sind nicht hoch und der Durchmesser der Rohrleitung ist relativ klein. Beispielsweise sollte bei einer Rohrleitung mit einem Nenndurchmesser von \u2264 50 mm ein Kugelventil oder eine Drosselklappe aus Stahlguss verwendet werden.<\/li><li>Bei Wasserversorgungs- und Heizungsprojekten im St\u00e4dtebau k\u00f6nnen bei Rohrleitungen mit kleineren Nenndurchmessern Absperrventile, Ausgleichsventile oder Kolbenventile aus Stahlguss eingesetzt werden, beispielsweise bei Rohrleitungen mit einem Nenndurchmesser von weniger als 150 mm.<\/li><li>Anwendbar auf mittlere Rohrleitungen wie Dampf unter DN200;<\/li><li>Nicht geeignet f\u00fcr Medien mit hoher Viskosit\u00e4t;<\/li><li>Nicht geeignet f\u00fcr Medien mit leicht absetzbaren Partikeln;<\/li><li>Es ist nicht f\u00fcr Entl\u00fcftungsventile und Ventile von Niedervakuumsystemen geeignet.<\/li><\/ol>\n\n\n\n<!-- Andy:h-related-tags -->\n<h2 id=\"h-related-tags\">Verwandte Tags:<\/h2>\n<!-- \/Andy:h-related-tags -->\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/\">ZECO-Ventil<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/difference-between-gate-valves-and-ball-valves.html\/\">Schieberventil vs. Kugelhahn<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/advantages-and-disadvantages-of-globe-valves.html\/\">Was ist ein Durchgangsventil?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/the-function-of-globe-valve-in-pipeline-system.html\/\">Was sind Absperrventile?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/what-is-an-axial-flow-silent-check-valve.html\/\">Was ist ein Axialr\u00fcckschlagventil<\/a>\n\n<\/div>\n\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/difference-between-gate-valve-and-butterfly-valve.html\/\">Unterschied zwischen Absperrschieber und Absperrklappe<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/china-gate-valves-suppliersnon-rising-stem-gate-valvesks-gate-valves.html\/\">Was ist ein Absperrschieber?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/tag\/shanghai-pressure-reducing-valve-factory\/\">Shanghai Druckminderventilfabrik<\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Das Durchgangsventil aus Stahlguss ist eines der am h\u00e4ufigsten verwendeten Ventile. Der Grund, warum es so beliebt ist, ist, dass die Reibung ... <a title=\"Auswahlstandards f\u00fcr Durchgangsventile aus Stahlguss\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/de\/selection-standards-of-cast-steel-globe-valve.html\" aria-label=\"Mehr zu Auswahlstandards f\u00fcr Absperrventile aus Stahlguss\">Weiterlesen ...<\/a><\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1929],"tags":[2419,1805,3671],"class_list":["post-16710","post","type-post","status-publish","format-standard","hentry","category-globe-valve","tag-cast-steel-globe-valve","tag-globe-valve","tag-globe-valve-flow-direction","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":false,"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/de\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":1929,"name":"Globe Valve","slug":"globe-valve","term_group":0,"term_taxonomy_id":1929,"taxonomy":"category","description":"","parent":0,"count":21,"filter":"raw","cat_ID":1929,"category_count":21,"category_description":"","cat_name":"Globe Valve","category_nicename":"globe-valve","category_parent":0}],"tag_info":[{"term_id":2419,"name":"cast steel globe valve","slug":"cast-steel-globe-valve","term_group":0,"term_taxonomy_id":2419,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":1805,"name":"globe valve","slug":"globe-valve","term_group":0,"term_taxonomy_id":1805,"taxonomy":"post_tag","description":"","parent":0,"count":21,"filter":"raw"},{"term_id":3671,"name":"Globe Valve Flow Direction","slug":"globe-valve-flow-direction","term_group":0,"term_taxonomy_id":3671,"taxonomy":"post_tag","description":"<!-- wp:generateblocks\/button-container {\"uniqueId\":\"f8260ba6\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"e4f70767\",\"hasUrl\":true,\"target\":true,\"backgroundColor\":\"#0366d6\",\"textColor\":\"#ffffff\",\"backgroundColorHover\":\"#222222\",\"textColorHover\":\"#ffffff\",\"paddingTop\":\"15\",\"paddingRight\":\"20\",\"paddingBottom\":\"15\",\"paddingLeft\":\"20\"} -->\r\n<a class=\"gb-button gb-button-e4f70767 gb-button-text\" href=\"mailto:commercial@zecovalve.com\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET GLOBE VALVE FLOW DIRECTION INFORMATION<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_d5c49d-10\"} \/-->\r\n\r\n<!-- wp:heading -->\r\n<h2>Globe Valve Direction of Flow<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<a href=\"https:\/\/zecovalve.com\/product-category\/globe-valve\">Globe valves<\/a> have become one of the most-used valves in companies in almost every industry. And with their ability to start, stop, and throttle fluid flow within a pipeline, it\u2019s easy to see why.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nGenerally speaking, the flow of globe vales is from down to up. It means the medium will go through from the disc downside and then out by the upside. Globe valves usually adopt a compulsory sealed design, so closing the valve offer pressure to the disc against the seat. So if you want to open the valve, the globe valve disc must overcome resistance made by stem and packing friction, medium pressure will offer adverse pressure which helps open the valve. It means you can use less force than the closing valve. So the stem diameter should be larger, to avoid stem bending fault. (depending on the metal material's physical performance of the stem ). In recent years, there are more and more valve pressure seals, the medium through the upper disc to the down disc, so the close valve force is smaller than the open valve force, valve shaft diameter is allowed to be smaller.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBut some opinions disagree with it, especially for a globe valve with a larger size (for example, a size bigger than DN250), the globe valve usually adopts a valve pressure seal, and considering closing valve force, it is easy to reach the seal performance. But it should take the stabilization of the valve into consideration when the valve stem diameter is smaller than the seat diameter.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBut how exactly do these valves work and what\u2019s the globe valve direction flow?\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>How do Globe Valves Work?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA globe valve is primarily designed to stop, start and regulate flow. It is comprised of a movable disk and a stationary ring seat in a generally spherical body. The seat of a globe valve is in the middle of and parallel to the pipe, and the opening in the seat is closed off with the disk. When the handle is turned, manually or through an actuator, a disc is lowered or raised by means of the valve stem. When the disc is fully lowered, the fluid flow is shut off. When the disc is fully raised, the fluid flow is at its maximum rate. When the disc is raised to the less than maximum level, the fluid flow is regulated in proportion to the vertical travel of the disc.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-globe-valve-flow-direction\"><strong>Globe Valve Flow Direction<\/strong><\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n-For low-temperature applications, globe and angle valves are ordinarily installed so that pressure under the disk. This promotes easy operation, helps protect the packing, and eliminates a certain amount of erosive action to the seat and disk faces.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n-For high-temperature steam service, globe valves are installed so that pressure is above the disk. Otherwise, the stem will contract upon cooling and tend to lift the disk off the seat ( and leak).\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Flow to Open (FTO)<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nAlso referred to as standard or forward flow, or in globe valves, flow under the seat. Think about when you've controlled the flow of water from a garden hose with your thumb. Your thumb acts like the face of the plug in a globe valve - flow is pushing against your thumb to open a flow path for the water.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Flow to Close (FTC)<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nAlso referred to as reverse flow or in globe valves, flow over the seat. Consider a drain plug in a bathtub. The flow direction is against the back or top of the plug (rather than the face) creating a tendency for the plug to close into the drain.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:image {\"align\":\"center\",\"id\":27401,\"width\":376,\"height\":387,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\r\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img class=\"wp-image-27401\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2023\/02\/GLOBE-VALVE-FTO-FTC.png\" alt=\"\" width=\"376\" height=\"387\" \/><\/figure>\r\n<!-- \/wp:image -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":8,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1929,"label":"Globe Valve"}],"post_tag":[{"value":2419,"label":"cast steel globe valve"},{"value":1805,"label":"globe valve"},{"value":3671,"label":"Globe Valve Flow Direction"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Selection Standards of Cast Steel Globe Valve - ZECO Valve<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zecovalve.com\/de\/selection-standards-of-cast-steel-globe-valve.html\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Selection Standards of Cast Steel Globe Valve - ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"Cast steel globe valve is one of the most widely used valves. The reason why it is popular is that the friction ... Weiterlesen ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/de\/selection-standards-of-cast-steel-globe-valve.html\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\n<meta property=\"article:published_time\" content=\"2022-06-23T02:55:43+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-02-23T06:33:10+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\">\n\t<meta name=\"twitter:data1\" content=\"Jerry\">\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\">\n\t<meta name=\"twitter:data2\" content=\"2\u00a0Minuten\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/zecovalve.com\/#website\",\"url\":\"https:\/\/zecovalve.com\/\",\"name\":\"ZECO Valve\",\"description\":\"Industrial Ball Valve, Gate Valve and Globe Valve Manufacturer\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/zecovalve.com\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"de\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/selection-standards-of-cast-steel-globe-valve.html#webpage\",\"url\":\"https:\/\/zecovalve.com\/selection-standards-of-cast-steel-globe-valve.html\",\"name\":\"Selection Standards of Cast Steel Globe Valve - ZECO Valve\",\"isPartOf\":{\"@id\":\"https:\/\/zecovalve.com\/#website\"},\"datePublished\":\"2022-06-23T02:55:43+00:00\",\"dateModified\":\"2023-02-23T06:33:10+00:00\",\"author\":{\"@id\":\"https:\/\/zecovalve.com\/#\/schema\/person\/f65555145e0ef282ff87649309aba6a3\"},\"breadcrumb\":{\"@id\":\"https:\/\/zecovalve.com\/selection-standards-of-cast-steel-globe-valve.html#breadcrumb\"},\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zecovalve.com\/selection-standards-of-cast-steel-globe-valve.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zecovalve.com\/selection-standards-of-cast-steel-globe-valve.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/\",\"url\":\"https:\/\/zecovalve.com\/\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"position\":2,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/selection-standards-of-cast-steel-globe-valve.html\",\"url\":\"https:\/\/zecovalve.com\/selection-standards-of-cast-steel-globe-valve.html\",\"name\":\"Selection Standards of Cast Steel Globe Valve\"}}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/zecovalve.com\/#\/schema\/person\/f65555145e0ef282ff87649309aba6a3\",\"name\":\"Jerry\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","_links":{"self":[{"href":"https:\/\/zecovalve.com\/de\/wp-json\/wp\/v2\/posts\/16710","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zecovalve.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zecovalve.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/de\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/de\/wp-json\/wp\/v2\/comments?post=16710"}],"version-history":[{"count":0,"href":"https:\/\/zecovalve.com\/de\/wp-json\/wp\/v2\/posts\/16710\/revisions"}],"wp:attachment":[{"href":"https:\/\/zecovalve.com\/de\/wp-json\/wp\/v2\/media?parent=16710"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zecovalve.com\/de\/wp-json\/wp\/v2\/categories?post=16710"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zecovalve.com\/de\/wp-json\/wp\/v2\/tags?post=16710"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}