{"id":2469,"count":2,"description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_9aa51d-a6\"} \/-->\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>OBTENIR LE PRIX DU MAT\u00c9RIAU DE LA VANNE PAPILLON<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-butterfly-valve-material\">Mat\u00e9riau de la vanne papillon<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nIl existe diff\u00e9rents types de mat\u00e9riaux pour les vannes papillon afin de r\u00e9pondre aux exigences des diff\u00e9rentes applications, tels que A216 WCB, A216 WCC, A217 WC6, A217 WC9, et ainsi de suite. En fonction de notre riche exp\u00e9rience et des besoins de l'industrie, nous s\u00e9lectionnons le mat\u00e9riau appropri\u00e9 pour produire les vannes papillon. Actuellement, nous fournissons principalement des vannes papillon en acier inoxydable et des vannes papillon cryog\u00e9niques. Vous pouvez cliquer sur le produit pour obtenir plus de d\u00e9tails.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-butterfly-valves-for-sale-list-by-material\">Liste des vannes papillon \u00e0 vendre par mat\u00e9riau<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:columns -->\r\n<div class=\"wp-block-columns\">\r\n\r\n<!-- wp:column -->\r\n<div class=\"wp-block-column\">\r\n\r\n<!-- wp:image {\"id\":16168,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\r\n<figure class=\"wp-block-image size-full\"><img class=\"wp-image-16168\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/stainless-steel-butterfly-valve.jpg\" alt=\"Vanne papillon en acier inoxydable\" \/><figcaption><a href=\"https:\/\/zecovalve.com\/fr\/products\/stainless-steel-butterfly-valve.html\/\">Vanne papillon en acier inoxydable<em>\/ GET VALVE PRICE &gt;<\/em><\/a><\/figcaption><\/figure>\r\n<!-- \/wp:image -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<a href=\"https:\/\/zecovalve.com\/fr\/products\/stainless-steel-butterfly-valve.html\/\">Vanne papillon en acier inoxydable La vanne papillon en acier inoxydable ZECO est une sorte de vanne papillon \u00e0 haute performance et longue dur\u00e9e de vie. Elle est principalement compos\u00e9e de dispositifs d'entra\u00eenement et de pi\u00e8ces en acier inoxydable.<\/a>\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<\/div>\r\n<!-- \/wp:column -->\r\n\r\n<!-- wp:column -->\r\n<div class=\"wp-block-column\">\r\n\r\n<!-- wp:image {\"id\":16242,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\r\n<figure class=\"wp-block-image size-full\"><img class=\"wp-image-16242\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/cryogenic-butterfly-valve.jpg\" alt=\"Vanne papillon cryog\u00e9nique\" \/><figcaption><a href=\"https:\/\/zecovalve.com\/fr\/products\/cryogenic-butterfly-valve.html\/\">Vanne papillon cryog\u00e9nique<em>\/ GET VALVE PRICE &gt;<\/em><\/a><\/figcaption><\/figure>\r\n<!-- \/wp:image -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<a href=\"https:\/\/zecovalve.com\/fr\/products\/cryogenic-butterfly-valve.html\/\">Vanne papillon cryog\u00e9nique ZECO Le volume du corps de la vanne papillon cryog\u00e9nique est faible et de forme sym\u00e9trique, et l'\u00e9paisseur de la paroi est uniforme.<\/a>\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<\/div>\r\n<!-- \/wp:column -->\r\n\r\n<\/div>\r\n<!-- \/wp:columns -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-introduction-of-butterfly-valve-material\">Introduction aux mat\u00e9riaux des vannes papillon<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA216 WCB et A216 WCC sont des mat\u00e9riaux couramment utilis\u00e9s pour les corps et les disques des vannes papillon, ils conviennent \u00e0 l'eau, \u00e0 l'huile, au gaz, \u00e0 la vapeur et \u00e0 d'autres milieux non corrosifs, parfois ils peuvent \u00e9galement \u00eatre utilis\u00e9s pour un service acide apr\u00e8s avoir \u00e9limin\u00e9 NACE MR-01-75 ou NACE MR-01-03 et pris en compte l'allocation de la corrosion. Il convient de noter qu'ils ne conviennent pas aux basses temp\u00e9ratures inf\u00e9rieures \u00e0 -29\u2103 et aux hautes temp\u00e9ratures sup\u00e9rieures \u00e0 425\u2103.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<strong>Corps de vanne WCC<\/strong>\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLa qualit\u00e9 WCC est couverte par la norme ASTM A216, qui couvre les pi\u00e8ces moul\u00e9es en acier au carbone pour vannes, raccords, brides et autres pi\u00e8ces sous pression pour service \u00e0 haute temp\u00e9rature et la qualit\u00e9 requise pour l'assemblage avec d'autres pi\u00e8ces moul\u00e9es ou en acier forg\u00e9 par soudage par fusion.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLes vannes A217 WC6 et A217 WC9 sont g\u00e9n\u00e9ralement utilis\u00e9es pour des applications \u00e0 haute temp\u00e9rature, le fluide \u00e9tant g\u00e9n\u00e9ralement de la vapeur ou de l'air chaud \u00e0 haute temp\u00e9rature. Pour ces applications, la vanne est \u00e9quip\u00e9e d'un si\u00e8ge m\u00e9tal\/m\u00e9tal ou d'une bague de si\u00e8ge SS+Graphite. Afin d'obtenir une fermeture \u00e9tanche, ces vannes sont g\u00e9n\u00e9ralement con\u00e7ues avec un triple excentrique.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<strong>Corps de vanne WC6<\/strong>\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLes soupapes ASTM A217 Gr. WC6 sont fabriqu\u00e9es en mat\u00e9riau WC6. La sp\u00e9cification ASTM A217 comprend un groupe d'aciers faiblement alli\u00e9s au molybd\u00e8ne et au chrome molybd\u00e8ne. Le mat\u00e9riau WC6 est un acier au chrome 1 \u00bc \u00bd molybd\u00e8ne.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA352 LCB et A352 LCC sont g\u00e9n\u00e9ralement utilis\u00e9s pour les applications \u00e0 basse temp\u00e9rature, habituellement, le fluide est de basse temp\u00e9rature mais plus de -46\u2103 ou la vanne est install\u00e9e \u00e0 l'ext\u00e9rieur dans une zone d'un environnement froid. Mais ces mat\u00e9riaux ne peuvent pas \u00eatre utilis\u00e9s pour les hautes temp\u00e9ratures sup\u00e9rieures \u00e0 345\u2103.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA351 CF8, A351 CF8M, A351 CF3, et A351 CF3M, ces aciers inoxydables aust\u00e9nitiques sont antirouille et anticorrosion, et conviennent \u00e0 divers types d'acides. Ils sont \u00e9galement tr\u00e8s performants pour les applications \u00e0 basse et haute temp\u00e9rature, mais leur co\u00fbt est beaucoup plus \u00e9lev\u00e9 que celui de l'acier au carbone.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLes robinets en aluminium-bronze tels que B148 C95500 et B148 C95800 sont parfaitement adapt\u00e9s aux applications en eau de mer. La vanne papillon en aluminium-bronze est largement utilis\u00e9e dans les applications offshore et les pipelines d'eau de mer. En raison de son co\u00fbt \u00e9lev\u00e9, les vannes papillon de grande taille sont g\u00e9n\u00e9ralement utilis\u00e9es comme mat\u00e9riau de disque pour la conception de la ligne centrale.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nL'acier duplex A890 4A, A890 5A, SAF2205, S31803 et l'acier super duplex A890 6A, SAF2507, et S32750 ont un champ d'application similaire \u00e0 celui de l'Al-Bronze, ils ont une bonne r\u00e9sistance \u00e0 la corrosion par le chlorure, ils sont donc largement utilis\u00e9s pour les applications d'eau de mer et d'eau produite.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Qu'est-ce qu'un si\u00e8ge de soupape ?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nEssentiellement, le si\u00e8ge d'une vanne est l'endroit o\u00f9 repose l'\u00e9l\u00e9ment mobile de la vanne lorsqu'elle est en position ferm\u00e9e. Dans les applications de vannes papillon, le disque repose fermement sur le si\u00e8ge pour fermer et \u00e9tanch\u00e9ifier la vanne. Les si\u00e8ges sont con\u00e7us pour maintenir le joint intact malgr\u00e9 les contraintes thermiques, de frottement et d'impact d'un processus.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Introduction du mat\u00e9riau du si\u00e8ge de la vanne papillon<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLe si\u00e8ge de soupape est une pi\u00e8ce amovible situ\u00e9e \u00e0 l'int\u00e9rieur de la soupape. Sa fonction principale est de soutenir le noyau de la soupape pour qu'il soit compl\u00e8tement ferm\u00e9 ou enti\u00e8rement ferm\u00e9 et de former une paire de joints d'\u00e9tanch\u00e9it\u00e9. Dans des circonstances normales, le diam\u00e8tre du si\u00e8ge de soupape correspond \u00e0 la taille de la soupape. Le si\u00e8ge de la vanne papillon est constitu\u00e9 d'une large gamme de mat\u00e9riaux, mais les mat\u00e9riaux couramment utilis\u00e9s sont l'EPDM \u00e0 \u00e9tanch\u00e9it\u00e9 souple, le caoutchouc nitrile (NBR), le polyt\u00e9trafluoro\u00e9thyl\u00e8ne (PTFE) et les mat\u00e9riaux m\u00e9talliques \u00e0 \u00e9tanch\u00e9it\u00e9 dure en alliage dur. Nous allons les pr\u00e9senter un par un ci-dessous.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list {\"ordered\":true} -->\r\n<ol>\r\n \t<li>EPDM : Par rapport aux autres caoutchoucs \u00e0 usage g\u00e9n\u00e9ral, l'EPDM pr\u00e9sente de grands avantages.\r\n<ul>\r\n \t<li>Le rapport co\u00fbt\/performance est tr\u00e8s \u00e9lev\u00e9. Parmi les caoutchoucs couramment utilis\u00e9s, l'EPDM a la densit\u00e9 de caoutchouc brut la plus l\u00e9g\u00e8re et peut \u00eatre rempli en grande quantit\u00e9, ce qui r\u00e9duit le co\u00fbt du caoutchouc.<\/li>\r\n \t<li>Le mat\u00e9riau EPDM est r\u00e9sistant au vieillissement, \u00e0 l'exposition au soleil, \u00e0 la chaleur, \u00e0 l'humidit\u00e9 et aux radiations, et convient aux milieux faiblement acides et faiblement alcalins. Bonnes propri\u00e9t\u00e9s d'isolation.<\/li>\r\n \t<li>La plage de temp\u00e9rature applicable peut \u00eatre aussi basse que -40\u2103-60\u2103, et il peut \u00eatre utilis\u00e9 pendant une longue p\u00e9riode dans des conditions de temp\u00e9rature de 130\u2103.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li>Caoutchouc nitrile (NBR) : r\u00e9sistance \u00e0 l'huile, r\u00e9sistance \u00e0 la chaleur, r\u00e9sistance \u00e0 l'abrasion, bonne r\u00e9sistance \u00e0 l'eau, \u00e9tanch\u00e9it\u00e9 \u00e0 l'air et excellentes propri\u00e9t\u00e9s de collage. Il est largement utilis\u00e9 dans les ol\u00e9oducs. L'inconv\u00e9nient est qu'il n'est pas r\u00e9sistant aux basses temp\u00e9ratures, \u00e0 l'ozone, qu'il a de mauvaises performances d'isolation et qu'il est g\u00e9n\u00e9ralement \u00e9lastique.<\/li>\r\n \t<li>Polyt\u00e9trafluoro\u00e9thyl\u00e8ne (PTFE) : Fluoroplastique, ce mat\u00e9riau pr\u00e9sente une forte r\u00e9sistance aux acides, aux alcalis et \u00e0 divers solvants organiques. Il r\u00e9siste \u00e9galement aux temp\u00e9ratures \u00e9lev\u00e9es et peut \u00eatre utilis\u00e9 en continu \u00e0 260\u00b0C, la temp\u00e9rature maximale d'utilisation pouvant atteindre 290-320\u00b0C. L'\u00e9mergence du PTFE a permis de r\u00e9soudre de nombreux probl\u00e8mes dans les industries chimique, p\u00e9troli\u00e8re, pharmaceutique et autres.<\/li>\r\n \t<li>VITON (V) : Con\u00e7u pour des temp\u00e9ratures de 0\u00b0F \u00e0 300\u00b0F. Viton est une marque d\u00e9pos\u00e9e de E.I. DuPont. Flour est la marque d\u00e9pos\u00e9e de 3M pour l'\u00e9lastom\u00e8re fluorocarbon\u00e9 \u00e9quivalent. Ce mat\u00e9riau offre une plus grande r\u00e9sistance \u00e0 la temp\u00e9rature et une r\u00e9sistance chimique exceptionnelle. Il r\u00e9siste aux produits hydrocarbon\u00e9s et aux acides min\u00e9raux, qu'il s'agisse de solutions dilu\u00e9es ou concentr\u00e9es. Cependant, il ne doit jamais \u00eatre utilis\u00e9 dans les applications vapeur et est relativement m\u00e9diocre dans les applications eau.<\/li>\r\n \t<li>Joint m\u00e9tallique dur (alliage dur) : Le mat\u00e9riau du si\u00e8ge de soupape \u00e0 joint m\u00e9tallique dur pr\u00e9sente une tr\u00e8s bonne r\u00e9sistance aux temp\u00e9ratures et aux pressions \u00e9lev\u00e9es, \u00e0 la corrosion, \u00e0 l'usure et \u00e0 d'autres caract\u00e9ristiques, ce qui compense les d\u00e9fauts du mat\u00e9riau \u00e0 joint souple qui n'est pas r\u00e9sistant aux temp\u00e9ratures et aux pressions \u00e9lev\u00e9es. Cependant, le mat\u00e9riau d'\u00e9tanch\u00e9it\u00e9 dur est tr\u00e8s exigeant en ce qui concerne la technologie de traitement. Le seul inconv\u00e9nient du si\u00e8ge de soupape \u00e0 joint dur en m\u00e9tal est que les performances d'\u00e9tanch\u00e9it\u00e9 sont m\u00e9diocres et que des fuites se produisent apr\u00e8s une longue p\u00e9riode de fonctionnement.<\/li>\r\n<\/ol>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Quel type de mat\u00e9riau dois-je utiliser ?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nCertaines caract\u00e9ristiques des si\u00e8ges de vannes papillon se chevauchent avec d'autres. Vous trouverez ci-dessous une comparaison c\u00f4te \u00e0 c\u00f4te de ces mat\u00e9riaux.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<strong>EPDM vs BUNA<\/strong>\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nL'EPDM r\u00e9siste aux alcalis, aux acides et aux c\u00e9tones. L'EPDM n'est pas adapt\u00e9 aux applications impliquant des carburants \u00e0 base de p\u00e9trole, de l'huile et des solvants non polaires, mais le BUNA l'est.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nSi l'EDPM et le BUNA sont tous deux r\u00e9sistants \u00e0 l'abrasion et \u00e0 la d\u00e9chirure, l'EDPM est plus r\u00e9sistant \u00e0 la chaleur que le BUNA. Si l'on compare l'EDPM \u00e0 la BUNA, l'EDPM est plus adapt\u00e9 aux applications ext\u00e9rieures car il r\u00e9siste aux intemp\u00e9ries.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<strong>VITON VS BUNA<\/strong>\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nVITON et BUNA sont tous deux r\u00e9sistants \u00e0 la d\u00e9formation par compression et supportent la plupart des huiles, lubrifiants et mat\u00e9riaux \u00e0 base de p\u00e9trole.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLa principale diff\u00e9rence entre VITON et BUNA est la r\u00e9sistance \u00e0 la temp\u00e9rature. VITON maintient une \u00e9tanch\u00e9it\u00e9 \u00e0 des temp\u00e9ratures sup\u00e9rieures d'environ 150\u00b0 \u00e0 celles de BUNA. Cependant, BUNA peut maintenir un joint \u00e0 des temp\u00e9ratures beaucoup plus froides que VITON.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nVITON r\u00e9siste mieux aux \u00e9l\u00e9ments ext\u00e9rieurs que BUNA, mais BUNA est consid\u00e9r\u00e9 comme meilleur pour les applications industrielles lourdes.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<strong>EPDM VS PTFE<\/strong>\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nL'EPDM est un monom\u00e8re et le PFTE (T\u00e9flon) est un fluoropolym\u00e8re. Lorsque l'on compare l'EPDM au PFTE, la tol\u00e9rance \u00e0 la temp\u00e9rature et la flexibilit\u00e9 sont les principales diff\u00e9rences. Le PTFE peut r\u00e9sister \u00e0 une plus large gamme de temp\u00e9ratures, tant froides que chaudes.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nL'EPDM est un caoutchouc r\u00e9sistant \u00e0 la d\u00e9chirure qui supporte les mouvements r\u00e9p\u00e9titifs, tandis que le PFTE est in\u00e9lastique. Le PTFE est id\u00e9al pour les processus p\u00e9troliers, tandis que l'EPDM convient aux applications HVAC.\r\n\r\n<!-- \/wp:paragraph -->","link":"https:\/\/zecovalve.com\/fr\/categorie-de-produits\/butterfly-valve\/butterfly-valve-by-material","name":"Robinet \u00e0 papillon par mat\u00e9riau","slug":"butterfly-valve-by-material","taxonomy":"product_cat","parent":2044,"meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Butterfly Material - Butterfly Valve Seat Material | Butterfly Valve Manufacturer - ZECO<\/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-material\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Butterfly Material - Butterfly Valve Seat Material | Butterfly Valve Manufacturer - ZECO\" \/>\n<meta property=\"og:description\" content=\"GET BUTTERFLY VALVE MATERIAL PRICE  Butterfly Valve Material  There is various kind of materials available for butterfly valve to suit the requirement of different application, such as A216 WCB, A216 WCC, A217 WC6, A217 WC9, and so on. According to our rich experience and industry needs, we select the proper material to produce butterfly valves. Currently, we mainly supply stainless steel butterfly valves and cryogenic butterfly valves. You may click the product to get more details.  Butterfly Valves for Sale List by Material    Stainless Steel Butterfly Valve\/ GET VALVE PRICE &gt;  Stainless Steel Butterfly Valve ZECO stainless steel butterfly valve is a kind of butterfly valve with high performance and long service life. It is mainly composed of driving devices and stainless steel parts.\/ GET VALVE PRICE &gt;    Cryogenic Butterfly Valve\/ GET VALVE PRICE &gt;  Cryogenic Butterfly Valve ZECO cryogenic butterfly valve body volume is small and symmetrical in shape, and the wall thickness is uniform.\/ GET VALVE PRICE &gt;    Introduction of Butterfly Valve Material  A216 WCB and A216 WCC are commonly used materials for the butterfly valve bodies and disc, they are suitable for water, oil, gas, steam, and other non-corrosive media, some times they can also be used for sour service after disposing of NACE MR-01-75 or NACE MR-01-03 and consider corrosion allowance in. It should be noticed that they are not suitable for low-temperature below -29\u2103 and high-temperature over 425\u2103.  WCC Valve Body  Grade WCC is covered by ASTM A216 standard, which specification covers carbon steel castings for valves, fittings, flanges, and other pressure-containing parts for high-temperature service and the quality required for assembly with other castings or wrought steel parts by fusion welding.  A217 WC6 and A217 WC9 are usually used for high-temperature applications, usually, the medium is high-temperature steam or hot air, for such applications, the valve is with metal to metal seat or SS+Graphite seat ring. In order to achieve tight shut-off, these valves are usually of a triple eccentric design.  WC6 Valve Body  ASTM A217 Gr. WC6 Valves are made up of WC6 material. The specification ASTM A217 includes a low alloy steel group of molybdenum and chromium molybdenum steels. The WC6 material is 1 \u00bc chromium \u00bd molybdenum steel.  A352 LCB and A352 LCC are usually used for low-temperature applications, usually, the medium is of low-temperature but over -46\u2103 or the valve is installed outdoors in an area of a cold environment. But these materials can not be used for high-temperature over 345\u2103.  A351 CF8, A351 CF8M, A351 CF3, and A351 CF3M, these austenitic stainless steel that is anti-rust and anti-corrosion, suitable for the medium of various kinds of acid. They also perform great for low-temperature and high-temperature applications but their cost of them is much higher than carbon steel.  Aluminum-bronze like B148 C95500 and B148 C95800 are perfectly suitable for seawater application. Al-Bronze butterfly valve is widely used in offshore applications and seawater pipelines. Because the cost of it is high, a big-size butterfly valve usually uses as a disc material for centerline design.  Duplex Steel A890 4A, A890 5A, SAF2205, S31803 and super duplex steel A890 6A, SAF2507, and S32750 have similar application range of Al-Bronze, they have good resistance to chloride corrosion, so they are widely used for seawater application and produced water application.  What is a Seat On a Valve?  Essentially, a valve seat is where the moving component of a valve rests when in the closed position. In butterfly valve applications, the disc rests securely on the seat to close and seal the valve. Seats are designed to keep the seal intact despite the thermal, friction, and impact stresses of a process.  Introduction of Butterfly Valve Seat Material  The valve seat is a detachable part inside the valve. Its main function is to support the valve core to be fully closed or fully closed and to form a sealing pair. Under normal circumstances, the diameter of the valve seat is the size of the valve. The butterfly valve seat is made of a wide range of materials, but the commonly used materials include soft-seal EPDM, nitrile rubber (NBR), polytetrafluoroethylene (PTFE), and metal hard-seal hard alloy materials. kind. Let\u2019s introduce them one by one below.  EPDM: Compared with other general-purpose rubbers, EPDM has great advantages. The cost performance is very high. Among the commonly used rubbers, EPDM has the lightest raw rubber density and can be filled in a large amount, reducing the cost of the rubber. EPDM material is resistant to aging, sun exposure, heat resistance, moisture resistance, and radiation resistance, and is suitable for weak acid and weak alkali media. Good insulation properties. The applicable temperature range can be as low as -40\u2103\u201360\u2103, and it can be used for a long time under the temperature condition of 130\u2103.  Nitrile rubber (NBR): oil resistance, heat resistance, abrasion resistance and good water resistance, air tightness, and excellent bonding properties. It is widely used in petroleum pipelines. The disadvantage is that it is not resistant to low temperatures, ozone, poor insulation performance, and general elasticity. Polytetrafluoroethylene (PTFE): A fluoroplastic, this material has strong resistance to acids, alkalis, and various organic solvents. At the same time, the material is resistant to high temperatures and can be used continuously at 260\u00b0C, and the maximum use temperature can reach 290-320\u00b0C. The emergence of PTFE has successfully solved many problems in the chemical, petroleum, pharmaceutical, and other industries. VITON (V): Rated for temperatures 0\u00b0F to 300\u00b0F. Viton is an E.I. DuPont trademark. Flour is 3M\u2019s trademark for the equivalent fluorocarbon elastomer. This material offers higher temperature resistance and outstanding chemical resistance. It is resistant to hydrocarbon products and mineral acids, both dilute and concentrated solutions. However, it is never to be used in steam applications and is relatively poor in water service. Metal hard seal (hard alloy): The material of the metal hard seal valve seat has very good high temperature and high-pressure resistance, corrosion resistance, wear resistance, and other characteristics, which makes up for the defects of soft seal material that is not resistant to high temperature and high pressure. However, the hard seal material has high requirements on the processing technology. The only disadvantage of the metal hard seal valve seat is that the sealing performance is poor, and leakage will occur after a long time of operation.  What Type of Material Should I Use?  Some butterfly valve seat characteristics overlap with others. Below is a side-by-side comparison of these materials.  EPDM vs BUNA  EPDM is resistant to alkalis, acids, and ketones. EPDM is not suitable for applications that involve petroleum-based fuels, oil, and non-polar solvents, but BUNA is.  While both EDPM and BUNA are abrasion and tear-resistant, EDPM is more heat-resistant than BUNA. When comparing EDPM vs BUNA, EDPM is better for outdoor applications as it stands up to elements.  VITON VS BUNA  VITON and BUNA are both compression set resistant and endure most oils, lubricants, and petroleum-based materials.  When comparing VITON vs BUNA, the main difference is temperature resistance. VITON maintains a seal with temperatures about 150\u00b0 hotter than BUNA would. However, BUNA can maintain a seal in much colder temperatures than VITON.  VITON stands up better for outdoor elements than BUNA, but BUNA is considered to be better for heavy-duty industrial applications.  EPDM VS PTFE  EPDM is a monomer and PFTE (Teflon) is a fluoropolymer. When comparing EPDM vs PFTE, temperature tolerance and flexibility are the main differences. PTFE can withstand a wider range of temperatures of both cold and hot extremes.  EPDM is a tear-resistant rubber that endures repetitive motion, whereas PFTE is inelastic. PTFE is ideal for petroleum processes while EPDM is suited for HVAC applications.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/fr\/categorie-de-produits\/butterfly-valve\/butterfly-valve-by-material\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\n<meta property=\"og:image\" content=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/stainless-steel-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-material#webpage\",\"url\":\"https:\/\/zecovalve.com\/product-category\/butterfly-valve\/butterfly-valve-by-material\",\"name\":\"Butterfly Material - Butterfly Valve Seat Material | Butterfly Valve Manufacturer - ZECO\",\"isPartOf\":{\"@id\":\"https:\/\/zecovalve.com\/#website\"},\"breadcrumb\":{\"@id\":\"https:\/\/zecovalve.com\/product-category\/butterfly-valve\/butterfly-valve-by-material#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zecovalve.com\/product-category\/butterfly-valve\/butterfly-valve-by-material\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zecovalve.com\/product-category\/butterfly-valve\/butterfly-valve-by-material#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-material\",\"url\":\"https:\/\/zecovalve.com\/product-category\/butterfly-valve\/butterfly-valve-by-material\",\"name\":\"Butterfly Valve By Material\"}}]}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","_links":{"self":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/product_cat\/2469","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=2469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}