{"id":2467,"count":6,"description":"\r\n\r\nLa soci\u00e9t\u00e9 ZECO propose actuellement principalement les cinq types de vannes papillon suivants : la vanne papillon \u00e0 triple d\u00e9calage, la vanne papillon LUG, la vanne papillon haute performance, la vanne papillon \u00e0 si\u00e8ge m\u00e9tallique et la vanne papillon \u00e0 double d\u00e9calage. Chacune d'entre elles est con\u00e7ue et fabriqu\u00e9e en fonction des besoins sp\u00e9cifiques de nos clients dans leur secteur d'activit\u00e9. Nous garantissons la qualit\u00e9 de nos vannes papillon ainsi que leurs prix comp\u00e9titifs.\r\n\r\n\r\n\r\n\r\n\r\nOBTENIR DES INFORMATIONS SUR LA CONCEPTION DES VANNES PAPILLON \u00c0 FERMETURE PAR DISQUE<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n

Type de vanne papillon sur la conception de la fermeture du disque<\/h2>\r\n\r\n\r\n\r\n

Vanne papillon concentrique<\/h3>\r\n\r\n\r\n\r\n\r\nLa conception la plus basique d'une vanne papillon est une vanne papillon centr\u00e9e ou concentrique. La tige passe par l'axe du disque et le si\u00e8ge correspond au diam\u00e8tre int\u00e9rieur du corps de la vanne. Cette conception de vanne \u00e0 d\u00e9calage z\u00e9ro est connue sous le nom de si\u00e8ge r\u00e9silient, car l'efficacit\u00e9 de l'\u00e9tanch\u00e9it\u00e9 repose sur la flexibilit\u00e9 du si\u00e8ge en caoutchouc. Lors de la fermeture, le disque entre d'abord en contact avec le si\u00e8ge \u00e0 environ 85\u00b0 au cours d'une rotation de 90\u00b0. Les vannes papillon concentriques conviennent aux plages de basse pression.\r\n\r\n\r\n\r\n\r\n

Vanne papillon \u00e0 double excentration<\/h3>\r\n\r\n\r\n\r\n\r\nDans le cas d'un double d\u00e9calage, le disque est d\u00e9cal\u00e9 par rapport \u00e0 l'axe de la valve et \u00e0 l'axe du corps de la valve. Vous pouvez le voir sur l'image o\u00f9 un et deux sont \u00e9crits. Cela cr\u00e9e une action de came pendant le fonctionnement qui soul\u00e8ve le si\u00e8ge hors du joint.\r\n\r\n\r\n\r\n\r\n\r\nLe double d\u00e9calage permet une ouverture et une fermeture en douceur car la friction ne s'applique que pendant les premiers degr\u00e9s d'ouverture et les derniers degr\u00e9s de fermeture, soit environ 10 degr\u00e9s d'ouverture et de fermeture.\r\n\r\n\r\n\r\n\r\n

Vanne papillon \u00e0 triple excentration<\/h3>\r\n\r\n\r\n\r\n\r\nLa conception unique des soupapes \u00e0 triple excentration emp\u00eache le grippage et les rayures entre le si\u00e8ge m\u00e9tallique et le disque m\u00e9tallique. Le joint n'entre en contact avec le si\u00e8ge qu'au moment de la fermeture compl\u00e8te. Les robinets \u00e0 triple excentration sont g\u00e9n\u00e9ralement utilis\u00e9s dans les applications qui n\u00e9cessitent une fermeture \u00e9tanche bidirectionnelle. Par exemple, dans le p\u00e9trole et le gaz, les usines chimiques, les terminaux et r\u00e9servoirs GNL\/GNP et la construction navale. Elles sont \u00e9galement utilis\u00e9es pour les huiles sales ou lourdes afin d'\u00e9viter l'extrusion.\r\n\r\n\r\n\r\n\r\n

Liste des vannes papillon \u00e0 vendre<\/h2>\r\n\r\n\r\n\r\n
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Vanne papillon \u00e0 triple excentration\/ GET VALVE PRICE ><\/em><\/a><\/figcaption><\/figure>\r\n\r\n\r\n\r\n\r\nVanne papillon \u00e0 triple excentration La vanne papillon \u00e0 triple excentration ZECO adopte une structure \u00e0 trois centres, qui augmente l'excentration de l'angle dans le temps sur la base d'une vanne papillon \u00e0 double excentration avec un joint m\u00e9tal sur m\u00e9tal \/ GET VALVE PRICE ><\/a>\r\n\r\n\r\n\r\n<\/div>\r\n\r\n\r\n\r\n
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Vanne papillon \u00e0 oreilles\/ GET VALVE PRICE ><\/em><\/a><\/figcaption><\/figure>\r\n\r\n\r\n\r\n\r\nLa vanne papillon \u00e0 oreilles ZECO est l'un des principaux fabricants mondiaux de vannes papillon haute performance. La conception \u00e0 bride de presse-\u00e9toupe de la vanne papillon haute performance ZECO exerce une pression sur le presse-\u00e9toupe afin d'emp\u00eacher toute fuite externe.\/ OBTENIR LE PRIX DE LA VANNE ><\/a>\r\n\r\n\r\n\r\n<\/div>\r\n\r\n\r\n<\/div>\r\n\r\n\r\n\r\n
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Vanne papillon haute performance\/ GET VALVE PRICE ><\/em><\/a><\/figcaption><\/figure>\r\n\r\n\r\n\r\n\r\nVanne papillon haute performance ZECO est l'un des principaux fabricants mondiaux de vannes papillon haute performance. La conception du si\u00e8ge r\u00e9silient bidirectionnel et ignifuge des vannes papillon haute performance ZECO garantit une \u00e9tanch\u00e9it\u00e9 totale de la vanne en fonctionnement normal.\/ OBTENIR LE PRIX DE LA VANNE ><\/a>\r\n\r\n\r\n\r\n<\/div>\r\n\r\n\r\n\r\n
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Vanne papillon \u00e0 si\u00e8ge m\u00e9tallique\/ GET VALVE PRICE ><\/em><\/a><\/figcaption><\/figure>\r\n\r\n\r\n\r\n\r\nVanne papillon \u00e0 si\u00e8ge m\u00e9tallique ZECO est un fournisseur mondial sp\u00e9cialis\u00e9 dans les vannes papillon \u00e0 \u00e9tanch\u00e9it\u00e9 dure. Gr\u00e2ce \u00e0 son expertise technique, \u00e0 ses processus de fabrication et \u00e0 ses conseils d'entretien, ZECO s'est impos\u00e9 comme un leader dans le domaine des vannes.\/ OBTENIR LE PRIX DE LA VANNE ><\/a>\r\n\r\n\r\n\r\n<\/div>\r\n\r\n\r\n<\/div>\r\n\r\n\r\n\r\n
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Vanne papillon \u00e0 double excentration\/ GET VALVE PRICE ><\/em><\/a><\/figcaption><\/figure>\r\n\r\n\r\n\r\n\r\nRobinet \u00e0 papillon \u00e0 double excentration Le robinet \u00e0 papillon \u00e0 double excentration ZECO peut avoir un si\u00e8ge en caoutchouc, un si\u00e8ge en PTFE et un si\u00e8ge en PTFE r\u00e9sistant au feu. La vanne papillon \u00e0 double excentration ZECO a deux excentrations \/ GET VALVE PRICE ><\/a>\r\n\r\n\r\n\r\n<\/div>\r\n\r\n\r\n\r\n
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Informations sur les produits de la vanne papillon ZECO<\/h2>\r\n\r\n\r\n\r\n\r\nVanne papillon ZECO \u00e0 double excentrique (double d\u00e9calage) : la conception \u00e9volue \u00e0 partir d'une vanne papillon \u00e0 simple excentrique et la vanne papillon \u00e0 double excentrique est actuellement la vanne papillon la plus couramment utilis\u00e9e. La caract\u00e9ristique est que la tige est d\u00e9cal\u00e9e par rapport \u00e0 l'axe du disque et \u00e0 l'axe du corps de la vanne. Le double effet excentrique permet au disque de se d\u00e9sengager rapidement du si\u00e8ge de la vanne apr\u00e8s l'ouverture, ce qui \u00e9limine consid\u00e9rablement le serrage excessif et le raclage du disque et du si\u00e8ge de la vanne, diminue le couple d'ouverture, r\u00e9duit l'usure et am\u00e9liore la dur\u00e9e de vie de la vanne. Le raclage est consid\u00e9rablement r\u00e9duit, et la vanne papillon \u00e0 double excentrique est \u00e9galement disponible pour les si\u00e8ges m\u00e9tal-m\u00e9tal, ce qui am\u00e9liore l'application de la vanne papillon dans des conditions de travail \u00e0 haute temp\u00e9rature. Cependant, la conception de l'\u00e9tanch\u00e9it\u00e9 est celle d'une structure d'\u00e9tanch\u00e9it\u00e9 de position, c'est-\u00e0-dire que la surface de contact du disque de la vanne et du si\u00e8ge est en contact lin\u00e9aire, et l'\u00e9tanch\u00e9it\u00e9 repose sur la d\u00e9formation \u00e9lastique cr\u00e9\u00e9e par la pression du disque sur le si\u00e8ge de la vanne, ce qui impose des exigences strictes en mati\u00e8re de fermeture de la vanne (en particulier pour les si\u00e8ges m\u00e9tal-m\u00e9tal), le palier ne convient que pour les basses pressions, ce qui explique pourquoi les gens pensent que les vannes papillon ne conviennent pas pour les applications \u00e0 haute pression et \u00e0 faible fuite.\r\n\r\n\r\n\r\n\r\n\r\nVanne papillon \u00e0 triple excentricit\u00e9 (triple d\u00e9calage) ZECO : pour adapter la vanne \u00e0 une application \u00e0 haute temp\u00e9rature, il convient d\u2019utiliser une \u00e9tanch\u00e9it\u00e9 m\u00e9tal sur m\u00e9tal, mais cela entra\u00eene toutefois une fuite. Pour obtenir une \u00e9tanch\u00e9it\u00e9 parfaite, il faudrait envisager un mat\u00e9riau souple pour l\u2019\u00e9tanch\u00e9it\u00e9, mais il est \u00e9vident qu\u2019un joint souple ne convient pas aux applications \u00e0 haute temp\u00e9rature. C\u2019est pourquoi la triple excentricit\u00e9 de la vanne papillon a \u00e9t\u00e9 con\u00e7ue pour pallier les inconv\u00e9nients d\u2019une vanne papillon \u00e0 double excentricit\u00e9. Sa particularit\u00e9 r\u00e9side dans le fait que l\u2019axe conique de la surface de contact du disque de la vanne est d\u00e9vi\u00e9 par rapport \u00e0 l\u2019axe du corps de la vanne, ce qui signifie qu\u2019apr\u00e8s l\u2019introduction de cette troisi\u00e8me excentricit\u00e9, l\u2019\u00e9tanch\u00e9it\u00e9 du disque n\u2019est plus excentr\u00e9e par rapport \u00e0 la position axiale de la tige de la vanne \u00e0 double excentricit\u00e9. De plus, la surface d\u2019\u00e9tanch\u00e9it\u00e9 est \u00e0 la fois elliptique et asym\u00e9trique : un c\u00f4t\u00e9 de cette surface est inclin\u00e9 par rapport \u00e0 l\u2019axe central du corps, tandis que l\u2019autre lui est parall\u00e8le. La principale diff\u00e9rence entre les vannes papillon \u00e0 double excentricit\u00e9 et celles \u00e0 triple excentricit\u00e9 r\u00e9side dans le fait que l\u2019\u00e9tanch\u00e9it\u00e9 n\u2019est pas de type positionnel mais de type torsionnel ; ainsi, une vanne papillon \u00e0 triple excentricit\u00e9 assure l\u2019\u00e9tanch\u00e9it\u00e9 gr\u00e2ce \u00e0 la pression de contact exerc\u00e9e sur le si\u00e8ge de la vanne. Une vanne papillon \u00e0 triple excentrique permet d\u2019obtenir une \u00e9tanch\u00e9it\u00e9 parfaite (z\u00e9ro fuite) gr\u00e2ce au contact m\u00e9tal sur m\u00e9tal avec le si\u00e8ge, ce qui rend cette vanne adapt\u00e9e aux applications \u00e0 moyenne pression, haute pression et haute temp\u00e9rature.\r\n\r\n","link":"https:\/\/zecovalve.com\/fr\/categorie-de-produits\/butterfly-valve\/butterfly-valve-by-form","name":"Vanne papillon par forme","slug":"butterfly-valve-by-form","taxonomy":"product_cat","parent":2044,"meta":[],"yoast_head":"\nButterfly Valve Type - Concentric \/ Double Offset \/ Triple Offset Butterfly 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\/categorie-de-produits\/butterfly-valve\/butterfly-valve-by-form\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Butterfly Valve Type - Concentric \/ Double Offset \/ Triple Offset Butterfly Valve\" \/>\n<meta property=\"og:description\" content=\"ZECO company currently mainly supplies the following five forms of butterfly valves, including\u00a0triple offset butterfly valve, LUG butterfly valve, high-performance butterfly valve, metal seated butterfly valve, and double offset butterfly valve. Each is designed and produced according to the customer’s needs in the industry. We promise the product quality and the competitive price of our butterfly valve. GET BUTTERFLY VALVE TYPE ON DISC CLOSURE DEISGN INFORMATION Butterfly Valve Type on Disc Closure Design Concentric Butterfly Valve 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. 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. Double Offset Butterfly Valve In Double Offset, the disk is offset from the valve center line and also from the valve body center line. You can see this in the image where one and two are written. This creates a cam action during operation that lifts the seat out of the seal. Double offset makes opening and closing smooth as friction is applicable only during the first few degrees of opening and final few degrees of closing, approx 10 degrees of opening and closing. Triple Offset Butterfly Valve The unique design of triple-offset valves prevents galling and scratches between the metal seat and the metal disc. The seal only ever comes into contact with the seat at the point of complete closure. Triple-offset valves are generally used in applications that require bi-directional tight shut-off. For example, in oil and gas, chemical factories, LNG\/NPG terminals and tanks, and shipbuilding. They are also used for dirty or heavy oil to prevent extrusion. Butterfly Valve for Sale List Triple Offset Butterfly Valve\/ GET VALVE PRICE > Triple Offset Butterfly Valve ZECO triple offset butterfly valve adopts three-eccentric structure, which increases angle eccentricity in time on the basis of double offset butterfly valve with metal to metal seal.\/ GET VALVE PRICE > Lug Butterfly Valve\/ GET VALVE PRICE > Lug Butterfly Valve ZECO is one of the world’s leading manufacturers of high-performance butterfly valves. The gland flange design of ZECO high-performance butterfly valve applies load against packing gland to prevent external leakage.\/ GET VALVE PRICE > High Performance Butterfly Valve\/ GET VALVE PRICE > High Performance Butterfly Valve ZECO is one of the world’s leading manufacturers of high-performance butterfly valves. ZECO high-performance butterfly valve’s fireproof bi-directional resilient seat design ensures zero leakage of the valve during normal operation.\/ GET VALVE PRICE > Metal Seated Butterfly Valve\/ GET VALVE PRICE > Metal Seated Butterfly Valve ZECO is a global professional supplier of hard seal butterfly valves. ZECO’s professional technology, production process and maintenance guidance have made ZECO a leader in the field of valves.\/ GET VALVE PRICE > Double Offset Butterfly Valve\/ GET VALVE PRICE > Double Offset Butterfly Valve ZECO double offset butterfly valve can have rubber seat, PTFE seat and fire safe PTFE seat. And ZECO double offset butterfly valve has two offsets.\/ GET VALVE PRICE > Product Information of ZECO Butterfly Valve ZECO double eccentric(double offset) butterfly valve: the design upgrades from a single eccentric butterfly valve and double eccentric butterfly valve is currently the most commonly used butterfly valve. The feature is that the stem is offset from the centerline of the disc and the centerline of the valve body. The double eccentric effect makes the disc quickly disengaged from the valve seat after opening, which greatly eliminates unnecessary over-squeezing and scraping of the disc and valve seat, decreases the opening torque, reduces wear, and improves its service life of it. The scraping is greatly decreased, and the double eccentric butterfly valve is also available for metal-to-metal seats, which improves the application of the butterfly valve in high-temperature working conditions. However, the sealing design is of position sealing structure, that is, the contact surface of the valve disc and the seat is in line contact, and the sealing relies on elastic deformation created by the disc pressing valve seat, so it has a strict requirement of valve closure (especially for metal to metal seat), the bearing only suitable for low pressure, which is why people think that butterfly valves are not suitable for high-pressure and low leakage application. ZECO triple eccentric(triple offset) butterfly valve: to make the valve suitable for a high-temperature application, metal to metal seal should be used, but there will be a leakage in the meantime. In order to achieve zero leakage, soft material for sealing should be considered, but obviously, the soft seal is not suitable for high-temperature applications. Therefore the third eccentricity of the butterfly valve was designed to make up for the shortcoming of a double eccentric butterfly valve. The feature is that the conical axis of the contact surface of the valve disc is deflected to the axis of the valve body, which means, after the third eccentricity, the disc sealing is not eccentric at the axial position of the double eccentric valve stem. In addition, the sealing is an ellipse and asymmetrical in the meantime, one side of the sealing is inclined to the body’s center line and the other side is parallel to it. The biggest difference between double eccentric and triple eccentric butterfly valves is that the sealing design is not a positional seal but a torsion seal, which means, a triple eccentric butterfly valve achieves sealing by sealing the surface pressure of the valve seat. A triple eccentric butterfly valve allows the metal to the metal seat to achieve zero leakage and makes the butterfly valve suitable for medium pressure, high pressure, and high-temperature application.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/fr\/categorie-de-produits\/butterfly-valve\/butterfly-valve-by-form\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\n<meta property=\"og:image\" content=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/triple-offset-butterfly-valve.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\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\":\"CollectionPage\",\"@id\":\"https:\/\/zecovalve.com\/product-category\/butterfly-valve\/butterfly-valve-by-form#webpage\",\"url\":\"https:\/\/zecovalve.com\/product-category\/butterfly-valve\/butterfly-valve-by-form\",\"name\":\"Butterfly Valve Type - Concentric \/ Double Offset \/ Triple Offset Butterfly Valve\",\"isPartOf\":{\"@id\":\"https:\/\/zecovalve.com\/#website\"},\"breadcrumb\":{\"@id\":\"https:\/\/zecovalve.com\/product-category\/butterfly-valve\/butterfly-valve-by-form#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zecovalve.com\/product-category\/butterfly-valve\/butterfly-valve-by-form\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zecovalve.com\/product-category\/butterfly-valve\/butterfly-valve-by-form#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\/product-category\/butterfly-valve\",\"url\":\"https:\/\/zecovalve.com\/product-category\/butterfly-valve\",\"name\":\"Butterfly Valve\"}},{\"@type\":\"ListItem\",\"position\":3,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/product-category\/butterfly-valve\/butterfly-valve-by-form\",\"url\":\"https:\/\/zecovalve.com\/product-category\/butterfly-valve\/butterfly-valve-by-form\",\"name\":\"Butterfly Valve By Form\"}}]}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","_links":{"self":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/product_cat\/2467","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/product_cat"}],"about":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/taxonomies\/product_cat"}],"up":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/product_cat\/2044"}],"wp:post_type":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/product?product_cat=2467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}