![\"Vanne](\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/lug-butterfly-valve-1.jpg\")
<\/figure>\n<\/div>\n\n\nQu'est-ce qu'une vanne papillon de type plaquette\u00a0?<\/h2>\n\n\n\n
La fonction d'une vanne papillon \u00e0 plaquette est de conserver un joint pour se prot\u00e9ger contre la diff\u00e9rence de pression bidirectionnelle dans l'\u00e9coulement du fluide. En d\u2019autres termes, la version wafer des vannes papillon a \u00e9t\u00e9 con\u00e7ue pour maintenir un joint \u00e9tanche, prot\u00e9geant ainsi contre une diff\u00e9rence de pression bidirectionnelle afin d\u2019\u00e9viter tout reflux dans les syst\u00e8mes fabriqu\u00e9s pour un d\u00e9bit unidirectionnel. Ceci est accompli en utilisant un joint bien ajust\u00e9, tel qu'un joint torique, un joint ou usin\u00e9 avec pr\u00e9cision, ainsi qu'une face de vanne plate sur les sections aval et amont de la vanne.<\/p>\n\n\n
![\"Vanne](\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/wafer-butterfly-valve-1.jpg\")
<\/figure>\n<\/div>\n\n\nWafer vs Lug<\/h2>\n\n\n\n
Vanne papillon de type plaquette<\/strong><\/p>\n\n\n\n Vanne papillon \u00e0 cosse<\/strong><\/p>\n\n\n\n Dans le cas d'une vanne papillon type Wafer, le corps est annulaire avec quelques trous de centrage non taraud\u00e9s. Certains types de plaquettes en ont deux, tandis que d'autres en ont quatre.<\/p>\n\n\n\n Les boulons de bride sont ins\u00e9r\u00e9s \u00e0 travers les trous de boulons des deux brides de tuyau et les trous de centrage de la vanne papillon. Les brides des tuyaux sont tir\u00e9es l'une vers l'autre en serrant les boulons de bride, et la vanne papillon est serr\u00e9e entre les brides et maintenue en place.<\/p>\n\n\n\n Dans le cas d'une vanne papillon \u00e0 ergots, il y a ce que l'on appelle des \u00ab oreilles \u00bb sur toute la circonf\u00e9rence du corps dans lesquelles les filetages sont taraud\u00e9s. De cette fa\u00e7on, la vanne papillon peut \u00eatre serr\u00e9e contre les deux brides du tuyau \u00e0 l'aide de 2 boulons s\u00e9par\u00e9s (un de chaque c\u00f4t\u00e9).<\/p>\n\n\n\n \u00c9tant donn\u00e9 que la vanne papillon est fix\u00e9e \u00e0 chaque bride des deux c\u00f4t\u00e9s avec des boulons s\u00e9par\u00e9s et plus courts, le risque de relaxation par dilatation thermique est plus faible qu'avec une vanne de type Wafer. De ce fait, la version Lug est plus adapt\u00e9e aux applications pr\u00e9sentant de grands \u00e9carts de temp\u00e9rature.<\/p>\n\n\n\n La vanne de type plaquette comporte g\u00e9n\u00e9ralement deux ou quatre trous non filet\u00e9s pour fixer et aligner la vanne dans deux brides d'accouplement. Le style \u00e0 cosse comporte des trous filet\u00e9s qui permettent \u00e0 l'utilisateur de retirer une extr\u00e9mit\u00e9 de la ligne sans affecter le c\u00f4t\u00e9 oppos\u00e9, car elle est maintenue solidement contre une bride avec des boulons qui correspondent aux cosses filet\u00e9es de la vanne. Cela facilite le nettoyage, l'inspection, la r\u00e9paration ou le remplacement d'autres sections de tuyauterie, car il n'est pas n\u00e9cessaire d'arr\u00eater l'ensemble du syst\u00e8me.<\/p>\n\n\n\n\n Qu'est-ce qu'une vanne papillon \u00e0 oreilles ? Les vannes papillon \u00e0 oreilles sont g\u00e9n\u00e9ralement constitu\u00e9es d'un m\u00e9tal tel que la fonte ductile ou l'acier. Elles se caract\u00e9risent par ... Lire plus<\/a><\/p>","protected":false},"author":2,"featured_media":16949,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[2210],"tags":[2629,3156,3398,3657,3509,2366,2812,3400,2815,3397,2814,3399],"class_list":["post-26576","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-butterfly-valve","tag-api-609-butterfly-valve","tag-butterfly-valve-api-609","tag-butterfly-valve-lug-vs-wafer","tag-center-line-butterfly-valve","tag-centerline-butterfly-valve","tag-lug-butterfly-valve","tag-lug-type-butterfly-valve","tag-lug-valve-vs-wafer","tag-lug-vs-wafer","tag-lug-wafer-butterfly-valve","tag-wafer-vs-lug","tag-wafer-vs-lug-valve","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/butterfly-valve-1.jpg",600,400,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":"\r\n\n
Dans le cas d'une vanne papillon type Wafer, le corps est annulaire avec quelques trous de centrage non taraud\u00e9s. Certains types de plaquettes en ont deux, tandis que d'autres en ont quatre.<\/li>\n<\/ul>\n\n\n\n\n
Cosses et plaquettes<\/h2>\n\n\n\n
Cosse de vanne papillon vs plaquette<\/h2>\n\n\n\n
Balises associ\u00e9es :<\/h2>\n\n\n\n\n
What is API 609 Standard?<\/h2>\r\n\r\n\r\n\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\r\n\r\n\r\n
What is an API 609 Butterfly Valve?<\/h2>\r\n\r\n\r\n\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\r\n\r\n\r\n\r\nGET API 609 BUTTERFLY VALVE PRICE<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n
Types of API 609 Butterfly Valve<\/h2>\r\n\r\n\r\n\r\n
API 609 Category A Butterfly Valve<\/h3>\r\n\r\n\r\n\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\r\n\r\n\r\n
API 609 Category B Butterfly Valve<\/h3>\r\n\r\n\r\n\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","parent":0,"count":9,"filter":"raw"},{"term_id":3156,"name":"Butterfly Valve API 609","slug":"butterfly-valve-api-609","term_group":0,"term_taxonomy_id":3156,"taxonomy":"post_tag","description":"\r\n\r\nGET CHINA BUTTERFLY VALVE WITH HANDLES PRICELIST INFORMATION<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\nButterfly valves are quarter-turn valves ideal for on\/off operations as well as modulating flow. This valve is rated for 10 bars of non-hazardous fluids and is operated by a squeeze lever. Please note that the maximum pressure may deviate based on the medium, detailed consultation with ZECO butterfly valve suppliers and manufacturers, with many years of experience in producing and selling butterfly valves.\r\n\r\n\r\n\r\n\r\n
China Butterfly Valve with Handles Pictures<\/h2>\r\n\r\n\r\n\r\n
<\/figure>\r\n\r\n\r\n\r\nChina Butterfly Valve with Handles Pricelist<\/h2>\r\n\r\n\r\n\r\n\r\nButterfly valve selection can not only be selected according to the price, the most important thing is to choose according to the actual engineering design requirements.\r\n\r\n\r\n\r\n\r\n\r\nDifferent materials and brands will affect the price of butterfly valves. It is very important to choose a reliable butterfly valve brand manufacturer. ZECO is a professional butterfly valve supplier and manufacturer with a cheap price and reliable quality.\r\n\r\n\r\n\r\n\r\n
Features of China Butterfly Valve with Handles Pricelist<\/h2>\r\n\r\n\r\n\r\n
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Performance of China Butterfly Valve with Handles<\/h2>\r\n\r\n\r\n\r\n\r\nButterfly valves are used in many fields. The performance of electric plastic butterfly valves is summarized as follows:\r\n\r\n\r\n\r\n\r\n
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Details of China Butterfly Valve with Handles<\/h2>\r\n\r\n\r\n\r\n