{"id":8765,"date":"2021-12-30T07:54:49","date_gmt":"2021-12-30T07:54:49","guid":{"rendered":"https:\/\/zecovalve.com\/news-why-choose-bellows-seal-globe-valve-professional-valve-manufacturer.html"},"modified":"2022-10-11T14:13:18","modified_gmt":"2022-10-11T14:13:18","slug":"news-why-choose-bellows-seal-globe-valve-professional-valve-manufacturer","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/de\/news-why-choose-bellows-seal-globe-valve-professional-valve-manufacturer.html","title":{"rendered":"Faltenbalgventil \u2013 Absperrventil mit Faltenbalg"},"content":{"rendered":"<h2 class=\"gb-headline gb-headline-0ffc58db gb-headline-text\">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 und 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 Absperrventils mit Faltenbalg 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\/\u6ce2\u7eb9\u7ba1\u622a\u6b62\u9600-2-1024x768.jpg\" alt=\"\" class=\"wp-image-17961\" width=\"512\" height=\"384\" srcset=\"\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" data-srcset=\"\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"gb-headline gb-headline-3f010a8e gb-headline-text\">Wie funktioniert ein Absperrventil mit Balgdichtung?<\/h2>\n\n\n\n<p>Ein Balgventil ist eine kompakte Konstruktion, eine Art Regelventil, das einen Balg zur Abdichtung der Ventilschaftkomponenten verwendet. Das Balgventil hat innen einen Balg, und das untere Ende des Edelstahlbalgs ist mit dem Schaft verschwei\u00dft, um zu verhindern, dass die Systemfl\u00fcssigkeit den Schaft erodiert. Das andere Ende ist zwischen dem Ventilk\u00f6rper und der Ventilabdeckung positioniert, um eine dauerhafte Abdichtung zu erzeugen. Diese doppelte Dichtungskonfiguration verhindert Leckagen, d. h. selbst wenn der Balg kollabiert, verhindert die Schaftverpackung weitere Leckagen. Der Balg ist mit dem Ventilschaft verschwei\u00dft, um eine stabile Betriebseffizienz zu gew\u00e4hrleisten und die durch die Bewegung des Ventileinsatzes verursachte Vibration des Ventilschafts zu verhindern.<\/p>\n\n\n\n<h2 class=\"gb-headline gb-headline-35ccd817 gb-headline-text\">Vergleich zwischen Balgdichtungs-Absperrventilen und herk\u00f6mmlichen Ventilen<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><th><br><\/th><th>Faltenbalgventile<\/th><th>Kolbenventile<\/th><th>Konventionelle Ventile<\/th><\/tr><tr><td>Prim\u00e4re Schaftdichtung<\/td><td>Metallbalg<\/td><td>Kolbenring<\/td><td>Stopfbuchspackung<\/td><\/tr><tr><td>Sekund\u00e4re Spindelabdichtung<\/td><td>Stopfbuchspackung<\/td><td>Keiner<\/td><td>Keiner<\/td><\/tr><tr><td>Schaftleckage<\/td><td>Nicht m\u00f6glich, da Metallb\u00e4lge f\u00fcr mehrere tausend Zyklen ausgelegt sind<\/td><td>Tritt auf, sobald der Ring verschlei\u00dft.<\/td><td>Sehr h\u00e4ufig. Aufgrund der Reibung zwischen Schaft und Ventilschaft kommt es innerhalb weniger Zyklen zu Reibung, unabh\u00e4ngig von der Ventilmarke oder der Qualit\u00e4t der Stopfbuchspackung.<\/td><\/tr><tr><td>Packungsersatz<\/td><td>Unzutreffend<\/td><td>Ringe m\u00fcssen h\u00e4ufig gewechselt werden<\/td><td>Die Packung muss sehr oft ausgetauscht werden<\/td><\/tr><tr><td>Wiederbeschaffungskosten<\/td><td>Unzutreffend<\/td><td>Sehr hoch<\/td><td>Hoch<\/td><\/tr><tr><td>Medienverlust<\/td><td>Kein Verlust. Da die Isolierung durch einen Metallbalg erfolgt, sind Leckagen (in ppm) nicht m\u00f6glich.<\/td><td>Gro\u00df im Falle von Undichtigkeiten<\/td><td>Erhebliche Menge durch Stopfbuchsenlecks. Normalerweise gro\u00dfe Menge, wenn das Leck unbeachtet bleibt.<\/td><\/tr><tr><td>Ger\u00e4teausfallzeiten<\/td><td>Null<\/td><td>Sehr hoch zum Ersetzen von Ringen<\/td><td>Sehr hoch f\u00fcr den Austausch der Stopfbuchspackung<\/td><\/tr><tr><td>Wartungskosten oft<\/td><td>Null<\/td><td>Hoch, da die Ringe mindestens alle sechs Monate gewechselt werden m\u00fcssen<\/td><td>Sehr hoch. Die Stopfbuchspackung muss ersetzt\/neu verpackt werden. Die Kosten sowie die Ausfallzeit der Ausr\u00fcstung und die aufgewendeten Arbeitsstunden sind sehr hoch.<\/td><\/tr><tr><td>Ventillebensdauer<\/td><td>H\u00f6chste Jahre<\/td><td>Niedrig<\/td><td>Sehr niedrig \u2013 in -Monaten. Aufgrund von Undichtigkeiten in der Stopfbuchse verschlei\u00dfen bestimmte Teile, wodurch das Ventil nach einigen Monaten irreparabel wird.<\/td><\/tr><tr><td>Sicherheit<\/td><td>Kann sicher f\u00fcr fast alle Medien verwendet werden<\/td><td>Kann f\u00fcr begrenzte Medien wie Dampf, hei\u00dfes Wasser verwendet werden<\/td><td>H\u00f6chst unsicher, wenn das Medium gef\u00e4hrlich \/ giftig ist<\/td><\/tr><tr><td>Kosten<\/td><td>Vergleichsweise h\u00f6here Anschaffungskosten, aber niedrigste Gesamtbetriebskosten<\/td><td>Hoch im Vergleich zu den Vorteilen<\/td><td>Anfangs niedrig, aber nach einigen Jahren sehr hoch, wenn die Kosten der Verpackung, die Ausfallzeit, die aufgewendeten Arbeitsstunden und die Anzahl der ausgetauschten Ventile usw. ber\u00fccksichtigt werden.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"507\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/\u5fb7\u6807\u622a\u6b62\u9600-1-1024x507.jpg\" alt=\"\" class=\"wp-image-17962\" srcset=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/\u5fb7\u6807\u622a\u6b62\u9600-1-1024x507.jpg 1024w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/\u5fb7\u6807\u622a\u6b62\u9600-1-300x149.jpg 300w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/\u5fb7\u6807\u622a\u6b62\u9600-1-768x381.jpg 768w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/\u5fb7\u6807\u622a\u6b62\u9600-1-1536x761.jpg 1536w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/\u5fb7\u6807\u622a\u6b62\u9600-1-2048x1015.jpg 2048w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/\u5fb7\u6807\u622a\u6b62\u9600-1-600x297.jpg 600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"gb-headline gb-headline-402e1e94 gb-headline-text\">Vorteile des Balgdichtungs-Absperrventils<\/h2>\n\n\n\n<ol class=\"wp-block-list\"><li>Doppelte Dichtungskonstruktion (Balg + Stopfpackung). Bei einem Ausfall des Balgs wird auch eine Spindelstopfpackung vermieden.<\/li><li>Angemessene Struktur, zuverl\u00e4ssige Abdichtung, hervorragende Leistung, sch\u00f6nes Aussehen.<\/li><li>Kein Fl\u00fcssigkeitsverlust, weniger Energieverlust, bessere Anlagensicherheit.<\/li><li>Die Dichtungsoberfl\u00e4che besteht aus einer Hartlegierung auf Co-Basis und ist verschlei\u00dffest, korrosionsbest\u00e4ndig, reibungsfest, hat eine lange Lebensdauer, verringert den Wartungsaufwand und senkt die Betriebskosten.<\/li><li>Die robuste Balgdichtungskonstruktion stellt sicher, dass die Spindel nicht ausl\u00e4uft und kein Wartungsaufwand entsteht.<\/li><li>Konditionierung des Absperrventilschafts und Nitrierung der Oberfl\u00e4che, gute Korrosions- und Reibungsbest\u00e4ndigkeit;<\/li><li>Intuitivere Anzeige der Hubposition des Ventilschafts.<\/li><\/ol>\n\n\n\n<h2 class=\"gb-headline gb-headline-51b1b350 gb-headline-text\">Anwendungen von Balgdichtungs-Absperrventilen<\/h2>\n\n\n\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: medium;\">Das Absperrventil mit Faltenbalg eignet sich f\u00fcr die Erd\u00f6l-, Chemie-, Pharma-, Kunstd\u00fcnger- und Stromindustrie sowie andere Industriezweige unter verschiedenen Arbeitsbedingungen der Rohrleitung und wird zum Absperren oder Durchlassen des Rohrleitungsmediums verwendet.<\/span><\/p>\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\/introduction-of-epdm-nbr-butterfly-valve-seat-industrial-valve-information-news-zeco-valve.html\/\">NBR-Absperrklappe<\/a>\n\n<\/div>\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\/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\/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\/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-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\/news-comparison-of-pneumatic-control-valve-and-hydraulic-valve-professional-valve-manufacturer.html\/\">Neuigkeiten \u2013 Vergleich von pneumatischem Steuerventil und hydraulischem Ventil | Professioneller Ventilhersteller<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/news-cryogenic-valves-for-lng-applications-professional-valve-manufacturer.html\/\">News \u2013 Kryogene Ventile f\u00fcr LNG-Anwendungen | Professioneller Ventilhersteller<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/news-welcome-to-the-new-website-of-zeco-valve-professional-valve-manufacturer.html\/\">Neuigkeiten \u2013 Willkommen auf der neuen Website von Zeco VALVE | Professioneller Ventilhersteller<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/news-types-and-selection-of-pneumatic-valve-accessories-professional-valve-manufacturer.html\/\">Neuigkeiten \u2013 Typen und Auswahl von pneumatischem Ventilzubeh\u00f6r | Professioneller Ventilhersteller<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/news-top-ten-chinese-valve-manufacturers-professional-valve-manufacturer.html\/\">Nachrichten \u2013 Die zehn gr\u00f6\u00dften chinesischen Ventilhersteller | Professioneller Ventilhersteller<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/news-forged-steel-valves-and-cast-steel-valves-professional-valve-manufacturer.html\/\">Neuigkeiten \u2013 Ventile aus Schmiedestahl und Ventile aus Gussstahl | Professioneller Ventilhersteller<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/news-top-10-china-ball-valve-manufacturer-list-in-2020-professional-valve-manufacturer.html\/\">Neuigkeiten \u2013 Liste der Top 10 chinesischen Kugelhahnhersteller im Jahr 2020 | Professioneller Ventilhersteller<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/news-china-gate-valve-product-market-analysis-professional-valve-manufacturer.html\/\">Nachrichten \u2013 China Gate Valve Produktmarktanalyse | Professioneller Ventilhersteller<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/news-wafer-check-valve-professional-valve-manufacturer.html\/\">Neuigkeiten \u2013 Wafer-R\u00fcckschlagventil | Professioneller Ventilhersteller<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/de\/news-fully-lined-polyurethane-knife-gate-valve-abrasive-resistant-professional-valve-manufacturer.html\/\">Neuigkeiten \u2013 Abriebfestes, vollst\u00e4ndig ausgekleidetes Absperrschieberventil aus Polyurethan | Professioneller Ventilhersteller<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Was ist ein Balgventil? 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=\"Faltenbalgventil \u2013 Absperrventil mit Faltenbalg\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/de\/news-why-choose-bellows-seal-globe-valve-professional-valve-manufacturer.html\" aria-label=\"Mehr zu Balgventil \u2013 Balgdichtungs-Absperrventil\">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":[2683,2689,2688,2686,2685,3110,2684,2682,2687],"class_list":["post-8765","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-bellow-seal-globe-valve","tag-bellow-seal-globe-valve-factory","tag-bellow-sealed-ball-valve-manufacturer","tag-bellow-sealed-globe-valve-manufacturer","tag-bellow-sealed-globe-valve-supplier","tag-bellows-seal-gate-valve","tag-bellows-seal-globe-valve","tag-bellows-valve","tag-china-bellows-seal-globe-valve","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":2683,"name":"Bellow Seal Globe Valve","slug":"bellow-seal-globe-valve","term_group":0,"term_taxonomy_id":2683,"taxonomy":"post_tag","description":"","parent":0,"count":4,"filter":"raw"},{"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":2688,"name":"bellow sealed ball valve manufacturer","slug":"bellow-sealed-ball-valve-manufacturer","term_group":0,"term_taxonomy_id":2688,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2686,"name":"bellow-sealed globe valve manufacturer","slug":"bellow-sealed-globe-valve-manufacturer","term_group":0,"term_taxonomy_id":2686,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2685,"name":"bellow-sealed globe valve supplier","slug":"bellow-sealed-globe-valve-supplier","term_group":0,"term_taxonomy_id":2685,"taxonomy":"post_tag","description":"","parent":0,"count":1,"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":2682,"name":"Bellows Valve","slug":"bellows-valve","term_group":0,"term_taxonomy_id":2682,"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"}],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}],"post_tag":[{"value":2683,"label":"Bellow Seal Globe Valve"},{"value":2689,"label":"bellow seal globe valve factory"},{"value":2688,"label":"bellow sealed ball valve manufacturer"},{"value":2686,"label":"bellow-sealed globe valve manufacturer"},{"value":2685,"label":"bellow-sealed globe valve supplier"},{"value":3110,"label":"Bellows Seal Gate Valve"},{"value":2684,"label":"Bellows Seal Globe Valve"},{"value":2682,"label":"Bellows Valve"},{"value":2687,"label":"China Bellows Seal Globe Valve"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bellows Valve - Bellow Seal 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\/news-why-choose-bellows-seal-globe-valve-professional-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 Valve - Bellow Seal Globe Valve | ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"What is a Bellows Valve? 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