{"id":7605,"date":"2021-12-30T07:12:21","date_gmt":"2021-12-30T07:12:21","guid":{"rendered":"https:\/\/zecovalve.com\/advantages-of-bellows-seal-globe-valves-zeco-valve-industrial-valve-manufacturer.html"},"modified":"2022-11-05T09:31:09","modified_gmt":"2022-11-05T09:31:09","slug":"advantages-of-bellows-seal-globe-valves-zeco-valve-industrial-valve-manufacturer","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/de\/advantages-of-bellows-seal-globe-valves-zeco-valve-industrial-valve-manufacturer.html","title":{"rendered":"Absperrventile mit Faltenbalg \u2013 Faltenbalgventil"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Was ist ein Balgventil?<\/h2>\n\n\n\n<p>Ein Faltenbalgventil ist ein speziell entwickeltes Ventil, das f\u00fcr den Einsatz in Industrien geeignet ist, in denen mit gef\u00e4hrlichen Medien gearbeitet wird und in denen selbst kleinste Leckagen \u00e4u\u00dferst kritisch sein k\u00f6nnen. Mit dem exponentiellen Wachstum neuer Industrien wie der Chemie- und Nuklearindustrie flie\u00dfen immer mehr brennbare, gef\u00e4hrliche, extrem giftige und toxische Medien durch die Rohrleitungen. Dies birgt ein hohes Risiko von Leckagen, Explosionen und Gesundheitsgefahren. Daher gelten f\u00fcr die in solchen Rohren und Systemen verwendeten Ventile besondere, strenge Anforderungen hinsichtlich Leckagen und Abdichtung.<\/p>\n\n\n\n<p>Die Notwendigkeit eines v\u00f6llig anderen Ansatzes zur Erzielung der gew\u00fcnschten Abdichtung und Redundanz hat zur Entwicklung des Balgdichtungs-Absperrventils gef\u00fchrt.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-1024x507.jpg\" alt=\"\" class=\"wp-image-20798\" width=\"512\" height=\"254\" srcset=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-1024x507.jpg 1024w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-300x149.jpg 300w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-768x381.jpg 768w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-1536x761.jpg 1536w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-2048x1015.jpg 2048w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-600x297.jpg 600w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Aufbau von Absperrventilen mit Faltenbalg<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>OS&amp;Y-Struktur<\/strong><ul><li>Die Struktur verf\u00fcgt \u00fcber eine nicht drehbare Spindel und einen nicht anhebbaren Griff, sodass der Balg nicht verdreht wird.<\/li><\/ul><\/li><li><strong>Stopfbuchspackung<\/strong><ul><li>Dies verhindert eine externe Leckage im Falle eines Balgbruchs. MV, Schmiedestahl, Gussstahl, SUS 20K: Packung aus expandiertem Graphit SUS 10K, 150 lb: Verst\u00e4rktes PTFE + PTFE-Packung<\/li><\/ul><\/li><li><strong>Verschraubte Motorhaubenstruktur<\/strong><ul><li>Die verschraubte Haubenstruktur erm\u00f6glicht eine einfache Wartung und Handhabung.<\/li><\/ul><ul><li>Die verschraubte Konstruktion sorgt f\u00fcr eine zuverl\u00e4ssige Befestigung.<\/li><\/ul><\/li><li><strong>Obere Dichtung<\/strong><ul><li>F\u00fcr die obere Dichtung wird ein Sitz aus expandiertem Graphit verwendet.<\/li><li>Dadurch wird eine Leckage nach au\u00dfen im Falle eines Balgbruchs verhindert.<\/li><\/ul><\/li><li><strong>Untere Dichtung<\/strong><ul><li>Externe Leckagen werden durch den Einsatz einer hochwertigen Dichtung blockiert. MV, Schmiedestahl, Gussstahl, SUS 20K: Expandierte grafische Dichtung SUS 10K, 150lb: Verst\u00e4rkte PTFE-Dichtung<\/li><\/ul><\/li><li><strong>Balg<\/strong><ul><li>Hydroulischer Mehrschichtbalg. Es wird SUS316L verwendet, das sich durch hervorragende Druck- und Korrosionsbest\u00e4ndigkeit auszeichnet.<\/li><\/ul><\/li><li><strong>Sitzfl\u00e4chen<\/strong><ul><li>Beide Sitzfl\u00e4chen mit hervorragender Klemm- und Abriebfestigkeit. (Optional f\u00fcr SUS-Ventile)<\/li><\/ul><\/li><li><strong>Ventilk\u00f6rper<\/strong><ul><li>Unterst\u00fctzt Sph\u00e4roguss (FCD-S), Edelstahl (SCS13A), (SCS14A), Stahlguss (ASTM A216-WCB) und Schmiedestahl (ASTM A105).<\/li><\/ul><\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-advantages-of-bellows-seal-globe-valves\">Vorteile von Balgdichtungs-Absperrventilen<\/h2>\n\n\n\n<p>Das Design des Absperrventils mit Faltenbalg ist besser als das eines gew\u00f6hnlichen Absperrventils. Was sind also die Vorteile von Absperrventilen mit Faltenbalg gegen\u00fcber gew\u00f6hnlichen Ventilen?<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>Das Absperrventil mit Faltenbalg weist keine Leckage auf und wird bei Medien mit hohem Risiko eingesetzt.<\/li><li>Das herk\u00f6mmliche Absperrventil ist mit einer Packung abgedichtet. Zwischen dem Ventilschaft und der Packung tritt ein Gleiten auf, sodass das Ventil bei niedrigen Temperaturen leicht undicht wird.<\/li><li>Absperrventile mit Faltenbalgdichtung verwenden geschlossene B\u00e4lge, die gedehnt und komprimiert werden k\u00f6nnen, um Stopfdichtungen zu ersetzen. Dadurch werden Leckagen durch Stopfverluste wirksam verhindert. Im Allgemeinen werden diese Ventile zur \u00dcbertragung von Medien mit hoher Durchl\u00e4ssigkeit verwendet. Beispielsweise treten bei Absperrventilen mit Faltenbalgdichtung f\u00fcr Wasserstoffsysteme normalerweise keine Leckagen auf, solange die B\u00e4lge nicht besch\u00e4digt sind. Das herk\u00f6mmliche Absperrventil ist jedoch mit einer Stopfpackung abgedichtet, die leicht zu Leckagen f\u00fchren kann.<\/li><li>Das Balgventil kann den Medienfluss unterbrechen und der \u00d6ffnungs- oder Schlie\u00dfhub des Ventilschafts ist relativ kurz. Da die \u00c4nderung der Sitz\u00f6ffnung proportional zum Hub der Scheibe ist, ist das Ventil eine ideale Wahl f\u00fcr die Durchflussregulierung. Daher eignet sich dieser Ventiltyp sehr gut zum Regulieren oder Unterbrechen des Durchflusses und zum Drosseln.<\/li><li>Doppelte Dichtungen (Faltenbalg + Packung). Wenn der Balg versagt, verhindert die Ventilschaftpackung ein Auslaufen. Und die Dichtung entspricht internationalen Standards.<\/li><li>Kein Fl\u00fcssigkeitsverlust und Reduzierung des Energieverlusts.<\/li><li>Lange Lebensdauer, dadurch geringere Wartungsh\u00e4ufigkeit und geringere Betriebskosten.<\/li><li>Die robuste Balgabdichtung sorgt f\u00fcr eine leckagefreie Ventilspindel und damit f\u00fcr Wartungsfreiheit.<\/li><li>Um die Abdichtung des Ventils bei gasf\u00f6rmigen Medien zu verbessern, werden PTFE-Weichdichtungswerkstoffe f\u00fcr den Ventilsitz eingesetzt.<\/li><li>Der Ventilsitz mit hoher Temperaturbest\u00e4ndigkeit (\u2264 425 \u00b0C) verf\u00fcgt \u00fcber eine konische Oberfl\u00e4che und eine harte Abdichtung.<\/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\/produktkategorie\/globe-valve\/\">Hersteller von Absperrventilen \u2013 Verschiedene Absperrventiltypen<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/produktkategorie\/gate-valve\/\">Schieberventilhersteller \u2013 Verschiedene Schieberventiltypen<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/produktkategorie\/ball-valve\/\">Kugelhahnhersteller \u2013 Verschiedene Kugelhahntypen<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/produktkategorie\/butterfly-valve\/\">Hersteller von Absperrklappen \u2013 Verschiedene Absperrklappentypen<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/produktkategorie\/balancing-valve\/\">Ausgleichsventil \u2013 HVAC-Ventil<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/produktkategorie\/check-valve\/\">R\u00fcckschlagventilhersteller \u2013 Verschiedene R\u00fcckschlagventiltypen<\/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\/what-should-be-paid-attention-to-when-using-flat-gate-valve-%e6%8a%80%e6%9c%af%e7%9f%a5%e8%af%86-news-zeco-valve-group-co-ltd-professional-valve-manufacturer.html\/\">Worauf sollte bei der Verwendung von Flachschieberventilen geachtet werden? 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Ein Balgventil ist ein speziell entwickeltes Ventil, das f\u00fcr den Einsatz in Industrien geeignet ist, in denen mit gef\u00e4hrlichen Stoffen gearbeitet wird \u2026 <a title=\"Absperrventile mit Faltenbalg \u2013 Faltenbalgventil\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/de\/advantages-of-bellows-seal-globe-valves-zeco-valve-industrial-valve-manufacturer.html\" aria-label=\"Mehr zu Balgdichtungs-Absperrventile \u2013 Balgventil\">Weiterlesen ...<\/a><\/p>","protected":false},"author":2,"featured_media":20798,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1],"tags":[2689,3110,2684,3687,2687,3686],"class_list":["post-7605","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-bellow-seal-globe-valve-factory","tag-bellows-seal-gate-valve","tag-bellows-seal-globe-valve","tag-bellows-seal-globe-valve-factory","tag-china-bellows-seal-globe-valve","tag-industrial-bellows","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-1024x507.jpg",1024,507,true],"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":2689,"name":"bellow seal globe valve factory","slug":"bellow-seal-globe-valve-factory","term_group":0,"term_taxonomy_id":2689,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":3110,"name":"Bellows Seal Gate Valve","slug":"bellows-seal-gate-valve","term_group":0,"term_taxonomy_id":3110,"taxonomy":"post_tag","description":"<!-- wp:paragraph -->\r\n\r\nIn particular chemical processes, the fluids in the pipes are often toxic, radioactive, and hazardous. Bellow sealed valves are used to prevent leakage of any toxic chemical into the atmosphere. The bellow can be supplied in different materials like 316Ti, 321, C276, or Alloy 625. Body material can be selected from all available materials.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLeakage at various points in pipelines found in chemical plants creates emissions. All such leakage points can be detected using various methods and instruments and should be noted by the plant engineer. Critical leakage points include flanged gasket joints and the Valve\/pump gland packing, etc. Today the chemical process industry is gearing itself towards safer technology for better environmental protection and it has become every process engineer's responsibility to design plants that limit damage to the environment through the prevention of leakage of any toxic chemicals.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_60ba43-05\"} \/-->\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 BELLOW SEAL GATE VALVE PRICE<\/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-bellow-seal-gate-valve\">What is Bellow Seal Gate Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA Bellow Seal Gate Valve is a specially designed valve suitable for use in industries dealing with a hazardous medium where even minute leakages can be extremely critical. With the exponential growth of new industries such as the chemical and nuclear industries, there is a growing abundance of flammable, hazardous, extremely poisonous, and toxic media flowing through the pipelines. This creates a high risk of leakage, explosion, and health hazards. So, the valves used in such pipes and systems have specific stringent leakage and sealing requirements.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Bellow Construction of Bellow Sealed Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe bellow cartridge is welded to both the Valve Bonnet and the Valve stem. The bellow cartridge has a number of convolutions and these convolutions become compressed or expanded depending upon the movement of the Valve stem. (Scientifically speaking the bellow gets compressed when the Valve is in the open position and expanded when the Valve is in the closed condition). It is important to properly install the Valve bodies. The bellow can be sealed to the Valves in two different ways. Firstly, the bellow can be welded to the Valve stem at the top and the Valve body at the bottom. In this case, the process fluid is contained inside the bellow, or in the second method the bellow is welded to the Valve stem at the bottom and the body on the top. In this case, the process fluid is contained in the annular region between the Valve Bonnet and bellow (from the outside).\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe bellow is a critical component and forms the heart of the bellow seal Valves. To avoid any twisting of the bellow the Valve must have a stem with linear movement only. This can be achieved using a so-called sleeve nut at the Yoke portion of the Valve Bonnet. A handwheel is fitted onto the sleeve-nut which effectively transfers a rotary motion of the handwheel into a linear motion in the Valve stem.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Bellow types of Bellow Seal Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThere are two main types of bellow.. the Forged Bellow and the Welded Bellow. Formed-type bellows are made by rolling a flat sheet (thin wall foil) into a tube which is then longitudinally fusion welded. This tube is subsequently mechanically or hydrostatically formed into a bellow with rounded and widely spaced folds. The welded leaf type bellow is made by welding washer-like plates of thin metal together at both the inner and outer circumference of the washers - like plates. A welded leaf bellow has more folds per unit length as compared to forged bellows. Thus, for the same stroke length, forged bellows are two to three times longer than their welded leaf counterparts.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nReportedly, mechanically forged bellows fail at random spots, while the welded leaf usually fails at or near a weld. To ensure full penetration of bellow ends and end coller welding it is advisable to fabricate using micro plasma welding.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Bellow Design of Bellows Seal Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe multi-ply bellow design is preferred for handling higher-pressure fluids (generally two or three plies of the metal wall). A two-ply bellow can increase its pressure rating by 80% to 100% as compared to a single ply bellow of the same thickness. Alternatively, if a single ply bellow of a thickness equivalent to a pressure rating of a two-ply bellow is used, the stroke length is reduced. Thus, a multi-ply bellow design offers a distinct advantage over a single ply bellow. It is clear that the bellow is subject to metal fatigue and this fatigue can induce weld failure. The bellow fatigue life is affected by the material of construction, fabrication technique, stroke length, and stroke frequency, in addition to the usual parameters such as fluid temperature and pressure.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Specification of Bellow Seal Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Design standard: ASME B16.34<\/li>\r\n \t<li>Face to face dimension: ASME B16.10<\/li>\r\n \t<li>Flanged ends: ASME B16.5<\/li>\r\n \t<li>Test &amp; inspection: API 598<\/li>\r\n \t<li>Nominal Size: NPS 1\/2\uff5e16<\/li>\r\n \t<li>Pressure Rating: CL.150\uff5eCL.1500<\/li>\r\n \t<li>End Connection: RF\/RTJ\/BW\/SW<\/li>\r\n \t<li>Body Material: Casting &amp; Forging(Carbon Steel, SS, Duplex, Hastelloy)<\/li>\r\n \t<li>Trim Material: As per standard or order requirement<\/li>\r\n \t<li>Bellow Material\uff1a304\/304L\/316\/316L\/Inconel600\/625\/718<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Features of Bellows Seal Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Long cycle life bellows (3000 cycles): Designed and qualification tested for high pressure\/temperature service.<\/li>\r\n \t<li>Bellows monitoring port (optional): A plug can be connected to the space above the bellows to monitor performance.<\/li>\r\n \t<li>Two secondary stem seals: a) Backseat in an open position; b) Graphite packing.<\/li>\r\n \t<li>Superior seating faces: Seats CoCr alloy hardfaced and the wedge is solid CoCr alloy.<\/li>\r\n \t<li>Each valve is tested per API 598.<\/li>\r\n \t<li>Every bellow assembly is helium leak-tested to assure zero leakage.<\/li>\r\n \t<li>Non-rotating stems prevent torsion of bellow.<\/li>\r\n \t<li>Secondary stem seals include:<\/li>\r\n \t<li>Stem backseat<\/li>\r\n \t<li>API 624 stem packing<\/li>\r\n \t<li>Lubricant fittings to ensure proper lubrication of stem bushing for efficient opening and closing.<\/li>\r\n \t<li>Multiple bellows materials are available: 316Ti, Hastelloy, Inconel, Monel, etc.<\/li>\r\n \t<li>All bellows are hydroformed with a minimum of two layers.<\/li>\r\n \t<li>Available in pressure classes 150-1500 (All body materials available)<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Applications of Bellow Sealed Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe hot oil system, steam system, hot and cold water system, etc.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":5,"filter":"raw"},{"term_id":2684,"name":"Bellows Seal Globe Valve","slug":"bellows-seal-globe-valve","term_group":0,"term_taxonomy_id":2684,"taxonomy":"post_tag","description":"","parent":0,"count":4,"filter":"raw"},{"term_id":3687,"name":"bellows seal globe valve factory","slug":"bellows-seal-globe-valve-factory","term_group":0,"term_taxonomy_id":3687,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2687,"name":"China Bellows Seal Globe Valve","slug":"china-bellows-seal-globe-valve","term_group":0,"term_taxonomy_id":2687,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_3a9674-b3\"} \/-->\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 BELLOW SEAL GLOBE VALVE PRICE<\/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-bellow-seal-globe-valve\">What is Bellow Seal Globe Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA Bellows Valve is a specially designed valve suitable for use in industries dealing with a hazardous medium where even minute leakages can be extremely critical. With the exponential growth of new industries such as the chemical and nuclear industries, there is a growing abundance of flammable, hazardous, extremely poisonous, and toxic media flowing through the pipelines. This creates a high risk of leakage, explosion, and health hazards. So, the valves used in such pipes and systems have specific stringent leakage and sealing requirements.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe need for a completely different approach required for the desired sealing &amp; redundancy has led to the development of Bellow seal globe Valves.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Features of Bellow Seal Globe Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul><!-- wp:list-item -->\r\n \t<li>Long cycle life bellows (10,000 cycles): Designed and qualification tested for high pressure\/temperature applications.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Bellows monitoring port (optional): A plug can be connected to the space above the bellows to monitor performance.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Two secondary stem seals: a) Backseat in an open position; b) Graphite packing.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Superior seating faces: Seats hard faced with CoCr alloy, and the disc is solid CoCr alloy.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Technical Specifications of Bellow Seal Globe Valve<\/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>TYPE OF DISC<\/td>\r\n<td>Plug\r\nNeedle\r\nSwivel\r\nRegulating Disc<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>CONSTRUCTION<\/td>\r\n<td>Bolted\r\nWelded\r\nExtended\r\nPressure Seal Bonnet<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>PATTERN<\/td>\r\n<td>Straight\r\nAngle\r\nY-type<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>END CONNECTIONS<\/td>\r\n<td>Flanged\r\nBW\r\nSW\r\nTHR<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>OPTIONS<\/td>\r\n<td>Extended Bonnet\r\nBellow Sealed\r\nHeating Jacket\r\nScrew-Down\/Non-Return<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>OPERATED<\/td>\r\n<td>Handwheel\r\nActuator Operated\r\nBare Stem<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>BELLOW SEAL MATERIALS<\/td>\r\n<td>304\r\n321\r\n316Ti\r\nAlloy 625\r\nC276<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>DESIGN &amp; TESTING<\/td>\r\n<td>All available international standards according to API, EN, ISO\r\nFire safe design<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>SIZE &amp; BORE<\/td>\r\n<td>ANSI 1\/4 \u2013 16\u201d\r\nDN 6 \u2013 DN 400<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>PRESSURE RANGE<\/td>\r\n<td>ANSI 125 \u2013 4,500 lbs.\r\nDIN PN 10 \u2013 PN 400<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n<!-- \/wp:table -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Applications of Bellows Seal Globe Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBellow sealed globe valves can be deployed for a wide variety of applications in the oil &amp; gas and petrochemical industries when high quality, reliable valves are required. A few example applications include:\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul><!-- wp:list-item -->\r\n \t<li>High-temperature services<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>High-cycle and switching services<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Emergency shutdown valves<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>High-integrity pressure protection system<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>High-pressure oxygen, nitrogen, or hydrogen<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Solids handling (powders, fines, dust, and catalysts)<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Polyethylene or polypropylene<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Coal conversion, and gasification<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Thermal fluids<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Separator, filter, and drying systems<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Compressor stations<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>On\/off isolation service<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Oil &amp; gas manifolds<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- \/wp:list -->","parent":0,"count":5,"filter":"raw"},{"term_id":3686,"name":"industrial bellows","slug":"industrial-bellows","term_group":0,"term_taxonomy_id":3686,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}],"post_tag":[{"value":2689,"label":"bellow seal globe valve factory"},{"value":3110,"label":"Bellows Seal Gate Valve"},{"value":2684,"label":"Bellows Seal Globe Valve"},{"value":3687,"label":"bellows seal globe valve factory"},{"value":2687,"label":"China Bellows Seal Globe Valve"},{"value":3686,"label":"industrial bellows"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bellows Seal Globe Valves - Bellow 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\/advantages-of-bellows-seal-globe-valves-zeco-valve-industrial-valve-manufacturer.html\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bellows Seal Globe Valves - Bellow Valve | ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"What is a Bellow Valve? 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