{"id":2702,"date":"2021-12-29T04:04:30","date_gmt":"2021-12-29T04:04:30","guid":{"rendered":"https:\/\/zecovalve.com\/pros-and-cons-of-diaphragm-valve-and-globe-valve-zeco-valve.html"},"modified":"2022-10-31T07:46:27","modified_gmt":"2022-10-31T07:46:27","slug":"pros-and-cons-of-diaphragm-valve-and-globe-valve-zeco-valve","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/de\/pros-and-cons-of-diaphragm-valve-and-globe-valve-zeco-valve.html","title":{"rendered":"Alles, was Sie \u00fcber Membranventile wissen m\u00fcssen \u2013 Membranventilfunktion"},"content":{"rendered":"<p>Membranventile bestehen aus einem Ventilk\u00f6rper mit zwei oder mehr \u00d6ffnungen, einer Membran und einem \u201eWehr oder Sattel\u201c oder Sitz, auf dem die Membran das Ventil schlie\u00dft. Das Membranventil wurde urspr\u00fcnglich f\u00fcr industrielle Anwendungen und Pfeifenorgeln entwickelt. Sp\u00e4ter wurde das Design f\u00fcr den Einsatz in der biopharmazeutischen Industrie angepasst, indem nachgiebige Materialien verwendet wurden, die Desinfektions- und Sterilisationsverfahren standhalten. Dar\u00fcber hinaus werden hygienische Membranventile speziell nach den h\u00f6chsten Standards f\u00fcr Anwendungen in der Herstellung von Medikamenten und Lebensmitteln entwickelt.<\/p>\n\n\n\n\n\n<h2 class=\"gb-headline gb-headline-4f68b528 gb-headline-text\">Was ist ein Membranventil?<\/h2>\n\n\n\n<p>Membranventile sind bidirektionale Ein-\/Aus-Drosselventile. Sie werden verwendet, um den Fl\u00fcssigkeitsfluss zu steuern, indem sie den Bereich regulieren, \u00fcber den das Medium in das Ventil eintreten und aus ihm austreten kann, wodurch seine Geschwindigkeit und Str\u00f6mung effektiv ver\u00e4ndert werden. Sie sind sogenannte \u201eMembranventile\u201c, weil eine d\u00fcnne, flexible Membran verwendet wird, um das \u00d6ffnen und Schlie\u00dfen des Ventils zu steuern. Sie k\u00f6nnen aus Metall wie Edelstahl, Kunststoff und sogar aus Einwegmaterialien hergestellt werden. Membranventile sind wie Quetschventile, verwenden jedoch einen Linearkompressor, der die d\u00fcnne Membran in Kontakt mit dem Ventilk\u00f6rper dr\u00fcckt. Sie bieten eine diskrete und variable Druckregelung und k\u00f6nnen sowohl manuell als auch automatisch bet\u00e4tigt werden. Membranventile sind saubere, leckagefreie, wartungsfreundliche, sichere und effektive Ventile, die sich am besten f\u00fcr Anwendungen mit mittlerem Druck und mittlerer Temperatur eignen, die eine Stopp-\/Start-Fl\u00fcssigkeitsregelung erfordern.<\/p>\n\n\n\n<h2 class=\"gb-headline gb-headline-696d6810 gb-headline-text\">Wie funktioniert ein Membranventil?<\/h2>\n\n\n\n<p>Ihre Funktionsweise \u00e4hnelt der Steuerung des Wasserflusses durch einen flexiblen Schlauch durch Abklemmen des Schlauchs. Diese Ventile eignen sich gut f\u00fcr Str\u00f6me, die feste Partikel wie Schl\u00e4mme enthalten, obwohl eine pr\u00e4zise Drosselung aufgrund der Elastizit\u00e4t der Membran schwierig zu erreichen sein kann.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"618\" height=\"248\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/diaphragm-valvesad2dd694715949b6a6c1358071f855ab.webp\" alt=\"\" class=\"wp-image-17980\"\/><\/figure>\n<\/div>\n\n\n<h2 class=\"gb-headline gb-headline-fb2b7231 gb-headline-text\">Arten von Membranventilen<\/h2>\n\n\n\n<h3 class=\"gb-headline gb-headline-744f92a9 gb-headline-text\">Drahtmembranventil<\/h3>\n\n\n\n<p>Die am h\u00e4ufigsten erh\u00e4ltlichen Ausf\u00fchrungen sind Membranventile vom Wehrtyp. Die erh\u00f6hte Lippen-\/Sattelkonfiguration f\u00fcr eine begrenzte Durchflussregelung ist ideal geeignet und dank der Abdeckung \u00fcber der Membran und dem Antrieb ist eine sichere Leckage gew\u00e4hrleistet. Diese Ausf\u00fchrung ist f\u00fcr sch\u00e4dliche oder korrosive Gase und Fl\u00fcssigkeiten geeignet, da diese Abdeckung jeden Zusammenbruch der Membran verhindert. Als integriertes Element des Ventilk\u00f6rpers ist ein Wehr vorgesehen. Das Wehr dient als Ventilsitz, um die Membran zusammenzudr\u00fccken und so den Druckanstieg zu vermeiden. Der geneigte K\u00f6rper entleert dieses Ventil oft auf nat\u00fcrliche Weise, obwohl dies in beide Richtungen erfolgen kann und bei bestimmten Anwendungen m\u00f6glicherweise nicht w\u00fcnschenswert ist. Im Allgemeinen wird diese Art von Membranventil in gro\u00dfen Gr\u00f6\u00dfen hergestellt. Das erh\u00f6hte Wehr verringert die Bewegung der Membran von der vollst\u00e4ndig ge\u00f6ffneten in die vollst\u00e4ndig geschlossene Position und verringert so die Belastung und Spannung in der Membran. F\u00fcr glatte, homogene Fl\u00fcssigkeiten wird h\u00e4ufig das Wehrventil verwendet, da sich auf beiden Seiten des Sattels viskose Schl\u00e4mme und Sedimente ansammeln k\u00f6nnen. In Prozessen wie Lebensmittel-\/Chemie-, Gasverarbeitungs-, Korrosions- und Wasseranwendungen sind sie am h\u00e4ufigsten anzutreffen.<\/p>\n\n\n\n<h3 class=\"gb-headline gb-headline-8b081bcd gb-headline-text\">Durchgangsmembranventil<\/h3>\n\n\n\n<p>Das Durchgangsmembranventil \u00e4hnelt im Aussehen den Wehrtypen, weist jedoch nicht den typischen Sattel auf, sondern hat stattdessen eine gerade Schiene. Normalerweise sind ihre Membranen kompakter und erm\u00f6glichen eine l\u00e4ngere Strecke, da der unterste Teil des Ventils ber\u00fchrt werden muss. Wenn das Durchgangsventil ge\u00f6ffnet ist, hebt sich die Membran hoch, um einen maximalen Str\u00f6mungsstrom in jede Richtung zu erreichen. Wenn das Ventil geschlossen ist, dichtet die Membran dicht ab, selbst wenn sich grobes oder faseriges Material in der Leitung befindet. Diese Ventile m\u00fcssen ebenfalls repariert werden, da ihre Lebensdauer aufgrund ihrer kompakteren Membranen normalerweise k\u00fcrzer ist als die von Wehrtypen. F\u00fcr Schl\u00e4mme, viskose \u00d6le und andere Bedingungen, bei denen Verstopfungen minimiert werden m\u00fcssen, werden h\u00e4ufig Durchgangsmembranventile verwendet. In der Getr\u00e4nkeindustrie wird am h\u00e4ufigsten der Vollbohrungstyp von Ventilen verwendet. Er erm\u00f6glicht die Reinigung mit einer Kugelb\u00fcrste, ohne das Ventil zu \u00f6ffnen oder aus der Leitung zu entfernen, entweder mit Dampf oder Natronlauge. Sie eignen sich auch f\u00fcr bidirektionale Str\u00f6mungsregime, da kein Sattel vorhanden ist, um den pl\u00f6tzlichen \u00dcbergang vom Einlass zum Auslass zu vermeiden.<\/p>\n\n\n\n<h2 class=\"gb-headline gb-headline-03dcf478 gb-headline-text\">Membranventilfunktion<\/h2>\n\n\n\n<p>Die Membran ist \u00fcber einen in die Membran eingegossenen Bolzen mit einem Kompressor verbunden. Um den Durchfluss zu starten oder zu erh\u00f6hen, wird der Kompressor durch den Ventilschaft nach oben bewegt. Um den Durchfluss zu stoppen oder zu verlangsamen, wird der Kompressor abgesenkt und die Membran gegen den Boden des Ventils gedr\u00fcckt. Membranventile eignen sich hervorragend zur Steuerung des Durchflusses von Fl\u00fcssigkeiten mit Schwebstoffen und bieten die Flexibilit\u00e4t, in jeder beliebigen Position installiert werden zu k\u00f6nnen. Membranventile vom Wehrtyp drosseln besser als durchgehende Membranventile, da die gro\u00dfe Absperrfl\u00e4che entlang des Sitzes ihnen die Eigenschaften eines schnell \u00f6ffnenden Ventils verleiht. Die Membran fungiert als Dichtung des Ventils und dichtet Lecks zwischen Geh\u00e4use und Verschlusskappe ab.<\/p>\n\n\n\n<p>Membranventile verwenden einen korrosionsbest\u00e4ndigen Ventilk\u00f6rper und eine korrosionsbest\u00e4ndige Membran, um die Ventilkegelkomponenten zu ersetzen, und steuern das Medium durch Bewegen der Membran. Wenn die Membran angehoben wird, wird der Durchgang ge\u00f6ffnet; wenn die Membran abgesenkt wird, wird sie gegen den Ventilk\u00f6rper gedr\u00fcckt und das Ventil wird geschlossen.<\/p>\n\n\n\n<figure class=\"wp-block-image\" id=\"attachment_283\"><img decoding=\"async\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2021\/12\/20211229040429-61cbde4d9a953.gif\" alt=\"Funktionsweise eines Membranventils\" class=\"wp-image-283\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-advantages-of-diaphragm-valve\">Vorteile des Membranventils<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>1) Einfache Struktur, bestehend aus nur drei Teilen: einem Ventilk\u00f6rper, einer Membran und einer Abdeckung<\/li><li>2) W\u00e4hrend des Betriebs kommt das Medium nur mit der Membran in Kontakt, sodass das Ventil nicht so leicht verunreinigt wird.<\/li><li>3) Geeignet f\u00fcr den Transport korrosiver, viskoser Fl\u00fcssigkeiten<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-disadvantages-of-diaphragm-valve\">Nachteile des Membranventils<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>1) Nicht f\u00fcr gr\u00f6\u00dfere Rohrdurchmesser geeignet<\/li><li>2) Schlechte Druck- und Temperaturbest\u00e4ndigkeit<\/li><\/ul>\n\n\n\n<h2 class=\"gb-headline gb-headline-7399b883 gb-headline-text\">Membran-Baumaterial<\/h2>\n\n\n\n<p>Membranen k\u00f6nnen aus verschiedenen Materialien hergestellt werden. Die Materialauswahl richtet sich nach der Art des zu verarbeitenden Materials, der Temperatur, dem Druck und der Betriebsh\u00e4ufigkeit. Elastomere Membranmaterialien sind bei hohen Temperaturen sehr best\u00e4ndig gegen Chemikalien. Die mechanischen Eigenschaften von Elastomermaterialien lassen jedoch bei h\u00f6heren Temperaturen (\u00fcber 150 \u00b0F) nach. Hoher Druck kann die Membran auch zerst\u00f6ren. Ein weiterer Faktor, der die Funktion der Membran beeintr\u00e4chtigen kann, ist die Konzentration des zu verarbeitenden Mediums. Das Material kann bis zu einer bestimmten Konzentration und\/oder Temperatur eine zufriedenstellende Korrosionsbest\u00e4ndigkeit gegen\u00fcber bestimmten Korrosionsmitteln aufweisen. Beispiele f\u00fcr Membranmaterialien und ihre Spezifikationen finden Sie in der folgenden Tabelle.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Material<\/strong><\/td><td><strong>Gr\u00f6\u00dfe<\/strong><\/td><td>&nbsp;<\/td><td><strong>Temperatur<\/strong><\/td><td>&nbsp;<\/td><td><strong>Anwendungen<\/strong><\/td><\/tr><tr><td>&nbsp;<\/td><td>Zoll<\/td><td>mm<\/td><td>\u00baF<\/td><td>\u00baC<\/td><td>&nbsp;<\/td><\/tr><tr><td>Butylkautschuk<\/td><td>0.6 - 14<\/td><td>15 - 350<\/td><td>\u2013 22 bis 134<\/td><td>\u2013 30 bis 90<\/td><td>S\u00e4uren und Laugen<\/td><\/tr><tr><td>Nitrilkautschuk<\/td><td>0.6 - 14<\/td><td>15 - 350<\/td><td>14 bis 134<\/td><td>-10 bis 90<\/td><td>\u00d6le, Fette und Kraftstoffe<\/td><\/tr><tr><td>Neopren<\/td><td>0.6 - 14<\/td><td>15 - 350<\/td><td>\u2013 4 bis 134<\/td><td>\u2013 20 bis 90<\/td><td>\u00d6le, Fette, Luft und radioaktive Fl\u00fcssigkeiten<\/td><\/tr><tr><td>Naturkautschuk\/Synthesekautschuk<\/td><td>0.6 - 14<\/td><td>15 - 350<\/td><td>\u2013 40 bis 134<\/td><td>\u2013 40 bis 90<\/td><td>Schleifmittel, Brau- und verd\u00fcnnte Minerals\u00e4uren<\/td><\/tr><tr><td>Wei\u00dfer Naturkautschuk<\/td><td>0.6 - 5<\/td><td>15 - 125<\/td><td>\u2013 31 bis 134<\/td><td>\u2013 35 bis 90<\/td><td>Lebensmittel und Pharmazeutika<\/td><\/tr><tr><td>Wei\u00dfes Butyl<\/td><td>0.6 - 6<\/td><td>15 - 150<\/td><td>\u2013 22 bis 212<\/td><td>\u2013 30 bis 100<\/td><td>Nat\u00fcrliche Farben, Lebensmittel, Kunststoffe und Pharmazeutika<\/td><\/tr><tr><td>Viton<\/td><td>0.6 - 14<\/td><td>15 - 350<\/td><td>41 bis 284<\/td><td>5 bis 140<\/td><td>Kohlenwasserstoffs\u00e4uren, Schwefel- und Chloranwendungen<\/td><\/tr><tr><td>Hypalon<\/td><td>0.6 - 14<\/td><td>15 - 350<\/td><td>32 bis 134<\/td><td>0 bis 90<\/td><td>S\u00e4ure- und ozonbest\u00e4ndig<\/td><\/tr><tr><td>Butylkautschuk<\/td><td>0.6 - 14<\/td><td>15 - 350<\/td><td>\u2013 4 bis 248<\/td><td>\u2013 20 bis 120<\/td><td>Hei\u00dfwasser- und intermittierende Dampfdienste, Zuckerraffination<\/td><\/tr><\/tbody><\/table><\/figure>\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\/tag\/shanghai-pressure-reducing-valve-factory\/\">Shanghai Druckminderventilfabrik<\/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\/gate-valve-problems.html\/\">Reparatur von Absperrschiebern<\/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\/history-of-automatic-control-valve-zeco-valve-industrial-valve-manufacturer.html\/\">Was sind automatische Regelventile?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/the-difference-between-globe-valve-and-ball-valve.html\/\">Durchgangsventil vs. Kugelhahn<\/a>\n\n<\/div>\n\n\n\n<p>Zehn Artikel davor und danach<\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/an-overview-of-sanitary-control-valve.html\/\">Hygieneventile f\u00fcr die industrielle Parf\u00fcmherstellung<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/how-to-maintain-the-sanitary-diaphragm-valves-zeco-valve.html\/\">Wie werden hygienische Membranventile gewartet? \u2013 Zeco Valve<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/press-drop-an-important-selection-criteria-for-choosing-control-valves-zeco-valve.html\/\">Pressabfall: Ein wichtiges Auswahlkriterium f\u00fcr die Wahl von Regelventilen \u2013 Zeco Valve<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/maintenance-of-sanitary-pneumatic-ball-valve-zeco-valve.html\/\">Wartung des pneumatischen Sanit\u00e4rkugelhahns \u2013 Zeco Valve<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/how-does-sanitary-ball-valve-work-zeco-valve.html\/\">Wie funktioniert ein Hygiene-Kugelhahn? \u2013 Zeco Valve<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/sanitary-ball-valve-image-gallery-zeco-valve.html\/\">Bildergalerie zu Sanit\u00e4rkugelh\u00e4hnen \u2013 Zeco Valve<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/categories-of-pressure-relief-valves-and-their-applications-zeco-valve.html\/\">Kategorien von Druckbegrenzungsventilen und ihre Anwendungen \u2013 Zeco Valve<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/differences-between-sanitary-valves-and-industrial-valves.html\/\">Unterschiede zwischen Sanit\u00e4rventilen und Industrieventilen<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/sanitary-diaphragm-valve-image-gallery-zeco-valve.html\/\">Bildergalerie zu hygienischen Membranventilen \u2013 Zeco Valve<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/4-metrics-for-the-quality-of-sanitary-pneumatic-ball-valves-zeco-valve.html\/\">4 Kennzahlen f\u00fcr die Qualit\u00e4t von pneumatischen Kugelh\u00e4hnen im Sanit\u00e4rbereich \u2013 Zeco Valve<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Membranventile bestehen aus einem Ventilk\u00f6rper mit zwei oder mehr \u00d6ffnungen, einer Membran und einem \u201eWehr oder Sattel\u201c oder Sitz darauf \u2026 <a title=\"Alles, was Sie \u00fcber Membranventile wissen m\u00fcssen \u2013 Membranventilfunktion\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/de\/pros-and-cons-of-diaphragm-valve-and-globe-valve-zeco-valve.html\" aria-label=\"Mehr zu Alles, was Sie \u00fcber Membranventile wissen m\u00fcssen \u2013 Membranventilfunktion\">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":[1],"tags":[2702,2704,2703,3205],"class_list":["post-2702","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-diaphragm-valve","tag-diaphragm-valve-diagram","tag-diaphragm-valve-function","tag-diaphragm-valve-manufacturers","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":1,"name":"Uncategorized","slug":"uncategorized","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":452,"filter":"raw","cat_ID":1,"category_count":452,"category_description":"","cat_name":"Uncategorized","category_nicename":"uncategorized","category_parent":0}],"tag_info":[{"term_id":2702,"name":"Diaphragm Valve","slug":"diaphragm-valve","term_group":0,"term_taxonomy_id":2702,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":2704,"name":"diaphragm valve diagram","slug":"diaphragm-valve-diagram","term_group":0,"term_taxonomy_id":2704,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":2703,"name":"Diaphragm Valve Function","slug":"diaphragm-valve-function","term_group":0,"term_taxonomy_id":2703,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_7d0b55-1a\"} \/-->\r\n\r\n<!-- wp:generateblocks\/button-container {\"uniqueId\":\"6d8495a3\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"3d442e11\",\"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-3d442e11 gb-button-text\" href=\"https:\/\/zecovalve.com\/contact\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET DIAPHRAGM VALVE DIAGRAM INFORMATION<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-what-is-a-diaphragm-valve\">What is a Diaphragm Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nDiaphragm valves get their name from a flexible disc that comes into contact with a seat at the top of the valve body to form a seal. A diaphragm is a flexible, pressure-responsive element that transmits force to open, close, or control a valve. Diaphragm valves are related to pinch valves, but use an elastomeric diaphragm, instead of an elastomeric liner in the valve body, to separate the flow stream from the closure element.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:image {\"align\":\"center\",\"id\":19395,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\r\n<figure class=\"wp-block-image aligncenter size-full\"><img class=\"wp-image-19395\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/20220708083634-62c7ec92aba44.jpg\" alt=\"\" \/><\/figure>\r\n<!-- \/wp:image -->\r\n\r\n<!-- wp:heading -->\r\n<h2>How do Diaphragm Valves Work?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nDiaphragm valves are simple in construction and operation. A valve actuator is in contact with the inner membrane (or \u201cdiaphragm\u201d) of the valve in its open position. When the user desires the valve to be shut, the actuator is pressed and\/or turned and the membrane is pushed into the edge of the solid damn, closing the valve. Certain diaphragm valves can also have half open\/restricted positions where the membrane is partially closed, allowing a throttled flow through the valve. In the next section, we will examine the broad categories of diaphragm valves and where they are most useful.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Types of Diaphragm Valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Weir-Type Diaphragm Valves<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe weir-type diaphragm valve is one of the most common designs available and is what is shown in Figure 2, above. The raised lip\/saddle design is best suited for small flow control and is kept leak-proof thanks to the bonnet over the diaphragm and actuator. This design is optimal for dangerous or corrosive liquid and gas, as any failure with the membrane will be kept contained by this bonnet. Also, the sloped body makes this valve inherently self-draining, but this draining can happen in both valve directions which may not be optimal for some applications. The weir-type valve is mostly specified for clean, homogenous fluids, as viscous slurries and sediments may build up on either side of the saddle. They are most often found in processes such as food\/chemical, gas production, corrosive, and water applications.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Straight Through Type Diaphragm Valves<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe straight-through diaphragm valve is structurally similar to weir-types; however, it does not contain the characteristic saddle and instead has a completely straight pathway. Their membranes are typically more flexible and allow for farther travel distance, as it must touch the very bottom of the valve. These valves must often be serviced\/replaced, as their lifespan is typically less than weir-type designs due to their more flexible membranes. Straight-through diaphragm valves are used for slurries, viscous fluids, and other applications where blocking must be reduced. They are also useful for bi-directional flow regimes, as there is no saddle to impede swift changing from inlet to outlet.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Diaphragm Valve Parts<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe components of diaphragm valves are the following:\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Diaphragm Valve Bonnet<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe bonnet serves as the top cover and is bolted to the valve body. It protects the compressor, stem, diaphragm, and other non-wetted components of the diaphragm valve.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Diaphragm Valve Body<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe valve body is the component directly connected to the pipeline wherein the fluid passes. The flow area inside the valve body depends on the type of diaphragm valve.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBoth the valve body and bonnet are constructed from strong, rigid, and corrosive resistant materials.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Diaphragm Valve Diaphragm<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe diaphragm is made from a highly elastic polymeric disc that moves down to touch the bottom of the valve body to limit or obstruct the passage of fluid. The diaphragm lifts if the fluid flow rate is to be increased or the valve is to be fully opened. The fluid flows underneath the diaphragm. However, this component limits the valve\u2019s operating temperature and pressure due to the diaphragm\u2019s material and structure. It must also be replaced periodically since its mechanical properties degrade during usage.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe diaphragm isolates the non-wetted components (compressor, stem, and actuator) from the flowing media. Therefore, solids and viscous fluids are less likely to interfere with the operating mechanism of the diaphragm valve. This also protects the non-wetted components from corrosion. Conversely, the fluid in the pipeline will not be contaminated with the lubricant used in operating the valve.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":4} -->\r\n<h4>Material of Diaphragm Valve Diaphragm<\/h4>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<strong>Unlined or Rubber Lined Type<\/strong>\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>NR\/Natural Rubber<\/li>\r\n \t<li>NBR\/Nitrile\/Buna-N<\/li>\r\n \t<li>EPDM<\/li>\r\n \t<li>FKM\/Viton<\/li>\r\n \t<li>BUNA-N<\/li>\r\n \t<li>SI\/Silicone rubber<\/li>\r\n \t<li>Leather<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<strong>Fluorine Plastic Type<\/strong>\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>FEP, with EPDM backing<\/li>\r\n \t<li>PTFE, with EPDM backing<\/li>\r\n \t<li>PFA, with EPDM backing<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Diaphragm Valve Compressor<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe compressor is a disc that lies between the valve stem and the diaphragm. It supports the diaphragm valve and distributes the forces from the stem during linear movement. The compressor design is optimized to provide better flow throttling and control.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Diaphragm Valve Stem<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe stem is a vertical shaft connected to the compressor that exerts linear motion to move both compressor and diaphragm, thus operating the diaphragm valve. It transmits the motion exerted by the actuator. Diaphragm valves can either have piston- or threaded-type stems. As the name implies, piston-type valves are moved by a piston assembly inside the bonnet, with the valve stem likely acting as the piston rod. This type requires linear force exerted by fluid pressure. Threaded stem valves have a matching stem nut. This type requires torque to linearly move the stem, as well as lubrication for smooth motion.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe threaded stems of diaphragm valves can have a rising or non-rising mechanism:\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li><strong>Rising Stem<\/strong>: Rising stems or indicating stems extend their length up to the handwheel. As the handwheel is turned, the stem rises or descends to open or close the valve, respectively. Hence, it is easier to determine the extent to which the valve is opened by looking at the amount of stem exposed. However, rising stems take up more space than non-rising stems.<\/li>\r\n \t<li><strong>Non-Rising Stem:<\/strong> Non-rising stems or non-indicating stems are rotated to open or close the valve, but it does not cause the stem to move up or down. Non-rising stem valves are used in limited spaces, such as in underground piping systems.<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Advantages and Disadvantages of Diaphragm Valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:table {\"className\":\"is-style-stripes\"} -->\r\n<figure class=\"wp-block-table is-style-stripes\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td><strong>Advantages<\/strong><\/td>\r\n<td><strong>Disadvantages<\/strong><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Extremely clean<\/td>\r\n<td>Can only be used at moderate temperatures (-60 to 450\u00baF)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Leak proof seal<\/td>\r\n<td>Can only be used in moderate pressures (approximately 300psi)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Tight shut-off<\/td>\r\n<td>Cannot be used in multi-turn operations<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Easy maintenance<\/td>\r\n<td>No industry standard face-to-face dimensions<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Repairs can be made without interrupting the pipeline<\/td>\r\n<td>The body must be made of corrosive resistant material<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Reduce leakage to the environment<\/td>\r\n<td><\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n<!-- \/wp:table -->","parent":0,"count":2,"filter":"raw"},{"term_id":3205,"name":"Diaphragm Valve Manufacturers","slug":"diaphragm-valve-manufacturers","term_group":0,"term_taxonomy_id":3205,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_e83080-b5\"} \/-->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nZECO Valves is a High-Quality Diaphragm Valves Manufacturer in China. We are a leading manufacturer of Diaphragm Valves. Our Diaphragm Valves are manufactured according to International ASTM ANSI Standards, ASTM API Standards, and ASTM DIN Standards in India. Mail us for Easy and Quick Quotes at Factory Prices.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:generateblocks\/button-container {\"uniqueId\":\"6d8495a3\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"3d442e11\",\"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-3d442e11 gb-button-text\" href=\"mailto:commercial@zecovalve.com\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET DIAPHRAGM VALVE MANUFACTURERS INFORMATION<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Description of Diaphragm Valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nDiaphragm Valves consist of a Valves body with two or more ports, a diaphragm, and a \"weir or saddle\" or seat upon which the Diaphragm closes the valve. The basic construction of the Diaphragm Valves is quite simple. It is composed of three principal units called Body, Bonnet, and Diaphragm.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nDiaphragm Valves are particularly designed for handling Corrosive, Abrasives, Viscous or Fibrous Fluids.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Advantages of Diaphragm Valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>The most economical corrosion-free and resisting Valves available today.<\/li>\r\n \t<li>Adaptable Body and Diaphragm materials.<\/li>\r\n \t<li>Permanent air tightness against fiber and gases Resilient closure.<\/li>\r\n \t<li>No contamination. The most suitable for Nuclear &amp; Food Services.<\/li>\r\n \t<li>No Gland packing.<\/li>\r\n \t<li>Simple in-line maintenance.<\/li>\r\n \t<li>Easy dismantling and assembly are possible without removing the body from the pipeline.<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Specifications of Diaphragm Valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Flange Drilling : ANSI B 16.5 \/ BS 10 Table \/ DIN \/ JIS<\/li>\r\n \t<li>Butt Weld End: ANSI B16.25<\/li>\r\n \t<li>SW Ends: ANSI B 16.11<\/li>\r\n \t<li>Testing: BS 6755-1<\/li>\r\n \t<li>Pressure -Temperature Rating: ASTM B 16.34<\/li>\r\n \t<li>Size : 1\" - 10\" (25mm - 250mm)<\/li>\r\n \t<li>Desige Code : BS 5156<\/li>\r\n \t<li>Pressure Rating: PN 6 - PN 16<\/li>\r\n \t<li>MAT. OF CON. : CI \/ CS \/ SS \/ Alloys \/ Monel \/ Hastelloy MOC<\/li>\r\n \t<li>Actuation: Handle Wheel, Pneumatic Cylinder<\/li>\r\n \t<li>Body Lining : EPDM \/ Ebonite \/ Neoprene \/ FRP \/ PTFE<\/li>\r\n \t<li>Body Diaphragm : EPDM \/ Ebonite \/ Neoprene \/ FRP \/ PTFE<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Maintenance of Diaphragm Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nMaintenance of Diaphragm Valves is very simple. By dismantling the Bonnet from the Body, the whole Trim Assembly can be taken out for cleaning and maintenance while the Body will remain in the Pipeline. Hence the design allows maintenance to save time and energy. Its linear flow characteristics make it perfect for throttling or modulating operations. On\/off and control, automation is supplied with Pneumatic Actuators or Cylinders.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Diaphragm Valve Manufacturers<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Burkert Fluid Control Systems<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBurkert Fluid Control Systems is a global process supplier of high-quality customized fluid control systems and products, including diaphragm valves. Some of our products include dual weirs, zero static tee valves, and more. For additional information, please visit our website. Burkert is one of the world's top companies for measurement, control, and regulation technology.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>International Polymer Solutions<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWe make a wide range of products that are engineered solutions for you! Our diaphragm valves are number one in the industry when it comes to quality and production time. Our objective is to make sure that you have a versatile product to get the job done. All of our products are guaranteed high quality!\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Yamada America, Inc.<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nYamada\u00ae Corporation has been a leading producer of fluid-handling products for over 60 years. As a leader in pneumatic pumping technology, Yamada\u00ae is known in industries worldwide for its innovative products, superior quality, and unmatched reliability. Yamada\u2019s ISO 9001 certification ensures quality procedures for manufacturing bellows pumps, dampeners, and more.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":3,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}],"post_tag":[{"value":2702,"label":"Diaphragm Valve"},{"value":2704,"label":"diaphragm valve diagram"},{"value":2703,"label":"Diaphragm Valve Function"},{"value":3205,"label":"Diaphragm Valve Manufacturers"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>All You Need to Know About Diaphragm valve - Diaphragm Valve Function<\/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\/pros-and-cons-of-diaphragm-valve-and-globe-valve-zeco-valve.html\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"All You Need to Know About Diaphragm valve - Diaphragm Valve Function\" \/>\n<meta property=\"og:description\" content=\"Diaphragm valves consists of a valve body with two or more ports, a diaphragm, and a \u201cweir or saddle\u201d or seat upon ... 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