{"id":17481,"date":"2022-06-27T15:34:49","date_gmt":"2022-06-27T15:34:49","guid":{"rendered":"https:\/\/zecovalve.com\/?p=17481"},"modified":"2022-08-08T03:30:07","modified_gmt":"2022-08-08T03:30:07","slug":"notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/fr\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html","title":{"rendered":"Notes pour l'installation et l'utilisation de la vanne papillon chinoise \u00e0 double excentrique"},"content":{"rendered":"<ul class=\"wp-block-list\"><li>1. v\u00e9rifier que les sp\u00e9cifications de la vanne papillon, la pression, la temp\u00e9rature et la r\u00e9sistance \u00e0 la corrosion sont conformes aux exigences avant l'installation. Les pi\u00e8ces doivent \u00eatre v\u00e9rifi\u00e9es pour s'assurer qu'elles ne sont pas endommag\u00e9es ou desserr\u00e9es.<\/li><li>2. De nombreuses vannes papillon peuvent \u00eatre install\u00e9es sur des conduites de n'importe quel angle, et il convient de les fermer et de les installer ; lors du soudage des brides de conduites, l'ouverture d'\u00e9tanch\u00e9it\u00e9 de la vanne doit \u00eatre bloqu\u00e9e par une plaque afin d'\u00e9viter la contusion de la surface d'\u00e9tanch\u00e9it\u00e9 par des particules et des objets divers. Apr\u00e8s le soudage, retirer la vanne, nettoyer la surface d'\u00e9tanch\u00e9it\u00e9 de la vanne et la cavit\u00e9 interne de la canalisation, puis installer la vanne fixe.<\/li><li>3. Lors de l'installation de la soupape, il convient de veiller \u00e0 la direction de la pression qu'elle supporte.<\/li><li>4. Avant l'installation, la surface d'\u00e9tanch\u00e9it\u00e9 (surface d'\u00e9tanch\u00e9it\u00e9 aux deux extr\u00e9mit\u00e9s, plaque de papillon et si\u00e8ge) doit \u00eatre soigneusement nettoy\u00e9e pour \u00e9liminer la poussi\u00e8re et la salet\u00e9.<\/li><li>5. Avant l'installation, la vanne papillon doit \u00eatre test\u00e9e vide, l'ouverture et la fermeture doivent \u00eatre flexibles, et la position d'ouverture et de fermeture doit \u00eatre conforme \u00e0 la position indiqu\u00e9e par l'aiguille.<\/li><li>6. Op\u00e9ration manuelle dans le sens des aiguilles d'une montre pour la fermeture, dans le sens inverse des aiguilles d'une montre pour l'ouverture, l'indication de l'aiguille est en place, il ne faut pas forcer \u00e0 nouveau l'ouverture et la fermeture de la vanne.<\/li><li>7. L'essai de pression de la vanne ne doit pas \u00eatre effectu\u00e9 avec une simple bride, mais avec une double bride. La pression d'essai doit \u00eatre conforme \u00e0 la norme GB\/T13927-92.<\/li><li>8. Lors du serrage des boulons, il convient de proc\u00e9der \u00e0 un serrage alternatif sym\u00e9trique et non pas \u00e0 un serrage s\u00e9par\u00e9 \u00e0 tour de r\u00f4le.<\/li><li>9. La vis de limitation a \u00e9t\u00e9 r\u00e9gl\u00e9e avant de quitter l'usine. Elle ne doit pas \u00eatre r\u00e9gl\u00e9e facilement. Si le dispositif d'entra\u00eenement est \u00e9lectrique ou pneumatique, veuillez vous r\u00e9f\u00e9rer aux instructions du dispositif d'entra\u00eenement concern\u00e9.<\/li><li>10. Le syst\u00e8me \u00e9lectrique\u00a0<strong>vanne papillon\u00a0<\/strong>a r\u00e9gl\u00e9 la course d'ouverture et de fermeture du m\u00e9canisme de commande lorsqu'il quitte l'usine. Afin d'\u00e9viter toute erreur de sens lors de la connexion de l'alimentation \u00e9lectrique, l'utilisateur doit d'abord l'ouvrir manuellement jusqu'\u00e0 la position semi-ouverte avant la premi\u00e8re connexion de l'alimentation \u00e9lectrique, puis appuyer sur l'interrupteur pour v\u00e9rifier que le sens de la plaque indicatrice est conforme au sens d'ouverture de la vanne.<\/li><li>11. Les causes du mauvais fonctionnement de l'ouverture et de la fermeture de la soupape doivent \u00eatre identifi\u00e9es, r\u00e9par\u00e9es et \u00e9limin\u00e9es afin d'\u00e9viter que la soupape ne soit endommag\u00e9e par l'utilisation de la m\u00e9thode de postcombustion.<\/li><\/ul>","protected":false},"excerpt":{"rendered":"<p>1. V\u00e9rifiez si les sp\u00e9cifications de la vanne papillon, la pression, la temp\u00e9rature et la r\u00e9sistance \u00e0 la corrosion r\u00e9pondent aux exigences avant l&#039;installation. Les pi\u00e8ces doivent \u00eatre v\u00e9rifi\u00e9es pour d\u00e9celer tout dommage\u2026 <a title=\"Notes pour l&#039;installation et l&#039;utilisation de la vanne papillon chinoise \u00e0 double excentrique\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/fr\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html\" aria-label=\"Plus sur Notes pour l&#039;installation et l&#039;utilisation de la vanne papillon double excentrique de Chine\">Lire plus<\/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":[2210],"tags":[2629,1881],"class_list":["post-17481","post","type-post","status-publish","format-standard","hentry","category-butterfly-valve","tag-api-609-butterfly-valve","tag-butterfly-valve-wikipedia","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\/fr\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":2210,"name":"Butterfly Valve","slug":"butterfly-valve","term_group":0,"term_taxonomy_id":2210,"taxonomy":"category","description":"","parent":0,"count":49,"filter":"raw","cat_ID":2210,"category_count":49,"category_description":"","cat_name":"Butterfly Valve","category_nicename":"butterfly-valve","category_parent":0}],"tag_info":[{"term_id":2629,"name":"API 609 Butterfly Valve","slug":"api-609-butterfly-valve","term_group":0,"term_taxonomy_id":2629,"taxonomy":"post_tag","description":"<!-- wp:heading -->\r\n<h2>What is API 609 Standard?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nAPI 609 is the American design standard for butterfly valves, which is divided into Category A and B.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-what-is-an-api-609-butterfly-valve\">What is an API 609 Butterfly Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA butterfly valve is used to shut off or modulate the flow of a fluid (isolation and regulation). API 609 Centric butterfly valves (soft seated) are preferred to gate and ball valves for low-pressure and non-critical applications as they are cheaper, lighter, and easier to install. Eccentric butterfly valves (double offset and triple offset valves) with metal seats have surged in popularity and compete with globe and ball valves for some applications.\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=\"https:\/\/zecovalve.com\/contact\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET API 609 BUTTERFLY VALVE PRICE<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Types of API 609 Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>API 609 Category A Butterfly Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe Centric or concentric butterfly valve is the primary type of butterfly valve design. In this design of the valve, the stem crosses from the centerline of the disc. Between the pipe bore and the seat, there is the inside diameter boundary. This zero-offset valve is also called resilient-seated because it relies on the adaptability of the seat rubber to seal the flow after closing it efficiently. At around 85\u00b0 during a 90\u00b0 rotation, the disc first comes into connection with the seat in this kind of valve. Concentric butterfly valves are generally used for low-pressure applications.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>API 609 Category B Butterfly Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nIn the eccentric butterfly valve, the stem passes behind the centerline of the disc instead of passing through it. As the stem is positioned behind the centerline, the valve is called a single offset. This design helps to minimize the disc contact with the seal, which increases the service life of the valve. In double-offset butterfly valves or doubly eccentric butterfly valves, the stem is positioned at the backside of the disc with an extra offset. This stem design allows the rotating disc to cover the seat only for one to three degrees. A triple offset butterfly valve is frequently used in more complex applications that have the same design as a double offset butterfly valve. A triple offset butterfly valve is efficient and reduces wear. This valve has metal seats that create a bubble-tight shut-off and make it able to use in higher temperature applications.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":9,"filter":"raw"},{"term_id":1881,"name":"Butterfly Valve Wikipedia","slug":"butterfly-valve-wikipedia","term_group":0,"term_taxonomy_id":1881,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_49a87c-f7\"} \/-->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-what-is-a-butterfly-valve\">What is a Butterfly Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nButterfly Valve is a valve that can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of Ball Valves, which allows for quick shut-off. Butterfly valves are generally favored because they are lower in cost than other valve designs as well as being lighter in weight, meaning less support is required. The disc is positioned in the center of the pipe, passing through the disc is a rod connected to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.\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=\"https:\/\/zecovalve.com\/contact\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET BUTTERFLY VALVE PRICE<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Types of Butterfly Valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li><strong>Concentric Butterfly Valve<\/strong>\r\n<ul>\r\n \t<li>The most basic design of a butterfly valve is a centric or concentric butterfly valve. The stem passes through the disc\u2019s centerline, and the seat is the inside diameter periphery of the valve body (Figure 4 on the left). This zero-offset valve design is known as resilient-seated because efficient sealing relies on the flexibility of the rubber seat. When closing, the disc first comes into contact with the seat at around 85\u00b0 during a 90\u00b0 rotation. Concentric butterfly valves are suitable for low-pressure ranges.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Double Offset Butterfly Valve<\/strong>\r\n<ul>\r\n \t<li>This popular valve is also known as a high-performance butterfly valve. This valve has two stems offset from the center. This creates a cam action during the application's process.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Triple Offset Butterfly Valve<\/strong>\r\n<ul>\r\n \t<li>Triple Offset Butterfly Valves are essential in applications where a bubble-tight shut-off is required. In some applications, bubble-tight shut-off cannot be achieved using double offset butterfly valves. Some applications do not lend themselves well to traditional butterfly valves, for example, applications involving harsh chemicals or media with small particles prone to clogging valves and pipelines.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Gate Valve vs Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nButterfly valves are comparatively more extensively used in large sizes compared to gate valves. Because butterfly valves open and close quickly and can be frequently operated, they are ideal for applications that require quick opening and closing, especially for emergency shutoffs.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":11,"filter":"raw"}],"taxonomy_info":{"category":[{"value":2210,"label":"Butterfly Valve"}],"post_tag":[{"value":2629,"label":"API 609 Butterfly Valve"},{"value":1881,"label":"Butterfly Valve Wikipedia"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Notes for Installation and Use of China Double E\u200bccentric Butterfly 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\/fr\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Notes for Installation and Use of China Double E\u200bccentric Butterfly Valve - ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"1.Check whether butterfly valve specifications, pressure, temperature and corrosion resistance meet the requirements before installation. The parts should be checked for damage ... Lire plus\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/fr\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\n<meta property=\"article:published_time\" content=\"2022-06-27T15:34:49+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-08-08T03:30:07+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\">\n\t<meta name=\"twitter:data1\" content=\"Jerry\">\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\">\n\t<meta name=\"twitter:data2\" content=\"1 minute\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/zecovalve.com\/#website\",\"url\":\"https:\/\/zecovalve.com\/\",\"name\":\"ZECO Valve\",\"description\":\"Industrial Ball Valve, Gate Valve and Globe Valve Manufacturer\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/zecovalve.com\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html#webpage\",\"url\":\"https:\/\/zecovalve.com\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html\",\"name\":\"Notes for Installation and Use of China Double E\\u200bccentric Butterfly Valve - ZECO Valve\",\"isPartOf\":{\"@id\":\"https:\/\/zecovalve.com\/#website\"},\"datePublished\":\"2022-06-27T15:34:49+00:00\",\"dateModified\":\"2022-08-08T03:30:07+00:00\",\"author\":{\"@id\":\"https:\/\/zecovalve.com\/#\/schema\/person\/f65555145e0ef282ff87649309aba6a3\"},\"breadcrumb\":{\"@id\":\"https:\/\/zecovalve.com\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zecovalve.com\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zecovalve.com\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/\",\"url\":\"https:\/\/zecovalve.com\/\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"position\":2,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html\",\"url\":\"https:\/\/zecovalve.com\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html\",\"name\":\"Notes for Installation and Use of China Double E\\u200bccentric Butterfly Valve\"}}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/zecovalve.com\/#\/schema\/person\/f65555145e0ef282ff87649309aba6a3\",\"name\":\"Jerry\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","_links":{"self":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/posts\/17481","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/comments?post=17481"}],"version-history":[{"count":0,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/posts\/17481\/revisions"}],"wp:attachment":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/media?parent=17481"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/categories?post=17481"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/tags?post=17481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}