![\"\"\/](\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/01\/20220105074420-61d54c54d552c.jpg\")
<\/figure>\n<\/div>\n\n\n\n\nQu'est-ce qu'une vanne \u00e0 simple si\u00e8ge ?<\/strong><\/strong><\/h2>\n\n\n\nUne vanne \u00e0 si\u00e8ge unique a un seul si\u00e8ge et un seul clapet. Dans ce type de vanne, la pression du processus atteindrait le c\u00f4t\u00e9 inf\u00e9rieur du clapet, ce qui cr\u00e9erait une force vers le haut dans la tige de la vanne. L'actionneur de cette vanne peut contr\u00f4ler cette force ou il est capable d'agir contre la force cr\u00e9\u00e9e par la pression du processus. Ainsi l'actionneur peut d\u00e9placer ou maintenir la tige vers le bas en contr\u00f4lant cette force. L'actionneur de cette vanne doit \u00eatre capable de contr\u00f4ler cette force, mais c'est une t\u00e2che difficile si la vanne est grande. Si la vanne est grande, la pression cr\u00e9\u00e9e sera \u00e9galement importante et l'actionneur doit \u00eatre capable de g\u00e9rer cette force, et pour cette raison, la vanne \u00e0 simple si\u00e8ge n'est pas utilis\u00e9e pour les applications haute pression. Les vannes \u00e0 si\u00e8ge unique conviennent si nous avons besoin d'un degr\u00e9 d'arr\u00eat plus \u00e9lev\u00e9, les vannes \u00e0 si\u00e8ge unique ou les vannes \u00e0 orifice unique se pr\u00e9sentent sous de nombreuses formes : \u00e0 globe, \u00e0 angle, en barre, etc. La vanne \u00e0 si\u00e8ge unique a une construction guid\u00e9e par le haut et elle a une bonne capacit\u00e9 de d\u00e9bit par rapport aux vannes guid\u00e9es sup\u00e9rieure et inf\u00e9rieure. La s\u00e9lection des actionneurs et des clapets pour une vanne monovoie doit se faire en fonction de la pression du fluide.<\/p>\n\n\n\n
Avantages des vannes \u00e0 simple si\u00e8ge<\/h2>\n\n\n\n- Il offre une grande plage de r\u00e9glage et une fermeture \u00e9tanche<\/li>
- Une prise r\u00e9versible est disponible<\/li><\/ul>\n\n\n\n
Inconv\u00e9nients des vannes \u00e0 simple si\u00e8ge<\/h2>\n\n\n\n- Un gros actionneur est n\u00e9cessaire<\/li>
- La r\u00e9cup\u00e9ration de pression est faible<\/li>
- Utilis\u00e9 uniquement pour les applications de petit diam\u00e8tre<\/li>
- La force n\u00e9cessaire pour entra\u00eener la tige est \u00e9lev\u00e9e<\/li><\/ul>\n\n\n\n
Applications des vannes \u00e0 simple si\u00e8ge<\/h2>\n\n\n\n
Ces vannes sont utilis\u00e9es pour contr\u00f4ler une large gamme de param\u00e8tres de processus et, en raison de cette caract\u00e9ristique, elles sont utilis\u00e9es dans la production de p\u00e9trole et de gaz et dans la production d'\u00e9lectricit\u00e9.<\/p>\n\n\n\n
Qu'est-ce qu'une vanne \u00e0 double si\u00e8ge (vanne \u00e0 double port)\u00a0?<\/h2>\n\n\n\n
Une vanne \u00e0 double si\u00e8ge est une vanne guid\u00e9e par le haut et par le bas et ces vannes ont deux clapets et deux si\u00e8ges. Dans ce type de vanne, la pression de ligne agit vers le haut dans un clapet et vers le bas dans l'autre, et de ce fait, la force est \u00e9quilibr\u00e9e. Ces vannes sont utilis\u00e9es pour les applications haute pression. Les vannes \u00e0 double orifice sont des vannes \u00e0 pression \u00e9quilibr\u00e9e et peuvent fermer le clapet de la vanne contre une pression de fonctionnement plus \u00e9lev\u00e9e. Une fermeture \u00e9tanche n'est pas possible car dans les vannes \u00e0 simple si\u00e8ge, ces vannes ont une r\u00e9ponse de d\u00e9bit rapide et une plus grande capacit\u00e9 que les vannes \u00e0 simple si\u00e8ge et elles sont utilis\u00e9es lorsqu'une fermeture \u00e9tanche n'est pas n\u00e9cessaire. Dans cette vanne, les deux ports ne peuvent pas \u00eatre ouverts en m\u00eame temps. Les vannes \u00e0 double port peuvent d\u00e9tourner le d\u00e9bit d\u2019une seule conduite d\u2019\u00e9coulement vers une ou plusieurs sorties.<\/p>\n\n\n\n
Avantages des vannes \u00e0 double si\u00e8ge<\/h2>\n\n\n\n- Il peut \u00eatre utilis\u00e9 pour des vannes plus grandes<\/li>
- Il peut \u00eatre utilis\u00e9 pour les services \u00e0 haut d\u00e9bit et haute pression<\/li><\/ul>\n\n\n\n
Inconv\u00e9nients des vannes \u00e0 double si\u00e8ge<\/h2>\n\n\n\n- Une fermeture \u00e9tanche n'est pas possible<\/li>
- En raison de l'\u00e9rosion et de la cavitation, les parties du corps pourraient s'user<\/li><\/ul>\n\n\n\n
Quelle est la diff\u00e9rence entre une vanne de r\u00e9gulation \u00e0 simple si\u00e8ge et \u00e0 double si\u00e8ge\u00a0?<\/h2>\n\n\n\n- 1) La vanne de r\u00e9gulation \u00e0 simple si\u00e8ge n'a qu'une seule garniture et un si\u00e8ge, la vanne de r\u00e9gulation \u00e0 double si\u00e8ge a deux garnitures et deux si\u00e8ges.<\/li>
- 2) La vanne de r\u00e9gulation \u00e0 si\u00e8ge unique pr\u00e9sente une petite fuite et il est facile d'obtenir une \u00e9tanch\u00e9it\u00e9 et une d\u00e9coupe strictes\u00a0; La vanne de r\u00e9gulation \u00e0 double si\u00e8ge pr\u00e9sente une fuite importante.<\/li>
- 3) La vanne de r\u00e9gulation \u00e0 simple si\u00e8ge permet une petite pression diff\u00e9rentielle\u00a0; la vanne de r\u00e9gulation \u00e0 double si\u00e8ge est soumise \u00e0 une petite force de d\u00e9s\u00e9quilibre et permet une grande pression diff\u00e9rentielle.<\/li>
- 4) La vanne de r\u00e9gulation \u00e0 simple si\u00e8ge a une petite capacit\u00e9 de d\u00e9bit et la vanne de r\u00e9gulation \u00e0 double si\u00e8ge a une grande capacit\u00e9 de d\u00e9bit. Par rapport \u00e0 d'autres vannes de r\u00e9gulation du m\u00eame diam\u00e8tre, la vanne de r\u00e9gulation \u00e0 double si\u00e8ge peut traverser plus de fluide, et la capacit\u00e9 de d\u00e9bit de la vanne de r\u00e9gulation \u00e0 double si\u00e8ge de m\u00eame diam\u00e8tre est d'environ 20%-50% plus grande que celle de la vanne de r\u00e9gulation \u00e0 simple si\u00e8ge.<\/li>
- 5) En raison de la pouss\u00e9e importante du fluide vers l'organe interne de la vanne, c'est-\u00e0-dire que la force d\u00e9s\u00e9quilibr\u00e9e est importante. Par cons\u00e9quent, dans l'application d'une diff\u00e9rence de pression \u00e9lev\u00e9e et d'un grand diam\u00e8tre, il n'est pas appropri\u00e9 d'utiliser une vanne de r\u00e9gulation \u00e0 un seul si\u00e8ge\u00a0; La vanne de r\u00e9gulation \u00e0 double si\u00e8ge ne convient pas aux applications diff\u00e9rentielles \u00e0 haute pression. En raison de son chemin d'\u00e9coulement complexe, il ne convient pas au contr\u00f4le des fluides contenant des fibres et des fluides \u00e0 haute viscosit\u00e9.<\/li><\/ul>\n\n\n\n
Le si\u00e8ge de vanne de commande pneumatique \u00e0 double si\u00e8ge est dot\u00e9 de bouchons de vanne inf\u00e9rieurs et sup\u00e9rieurs. Le fluide s'\u00e9coule \u00e9galement sur le c\u00f4t\u00e9 gauche du corps, traverse le si\u00e8ge de vanne et le clapet et s'\u00e9coule du c\u00f4t\u00e9 droit. Elle peut d\u00e9biter plus de fluide que la vanne de r\u00e9gulation habituelle \u00e0 si\u00e8ge unique avec un diam\u00e8tre nominal similaire, et la capacit\u00e9 de d\u00e9bit est \u00e9galement \u00e9lev\u00e9e d'environ 20% \u00e0 25%. Les forces agissant sur les bouchons inf\u00e9rieur et sup\u00e9rieur peuvent s'annuler, donc la pression de d\u00e9s\u00e9quilibre est faible, la diff\u00e9rence de pression de fonctionnement est grande.<\/p>\n\n\n\n
- 1.Les options de la vanne de r\u00e9gulation \u00e0 si\u00e8ge unique\u00a0: la fuite est faible, la pression d\u00e9s\u00e9quilibr\u00e9e est grande et la diff\u00e9rence de pression admissible est \u00e9galement plus petite par rapport \u00e0 la vanne \u00e0 double si\u00e8ge.<\/li>
- 2. Les caract\u00e9ristiques de la vanne de r\u00e9gulation \u00e0 double si\u00e8ge : grande diff\u00e9rence de pression admissible. Il est presque toujours particuli\u00e8rement appropri\u00e9 pour les applications pr\u00e9sentant des d\u00e9bits \u00e9lev\u00e9s, des chutes impitoyables et d\u2019\u00e9normes fuites. <\/li><\/ul>\n\n\n\n\n
Balises associ\u00e9es :<\/h2>\n\n\n\n\n\nSoupape ZECO<\/a>\n\n<\/div>\n\n\n\n\nRobinet \u00e0 papillon NBR<\/a>\n\n<\/div>\n\n\n\n\nQue sont les vannes de r\u00e9gulation automatique ?<\/a>\n\n<\/div>\n\n\n\n\nDiff\u00e9rence entre la vanne \u00e0 vanne et la vanne papillon<\/a>\n\n<\/div>\n\n\n\n\nVanne et robinet \u00e0 boisseau sph\u00e9rique<\/a>\n\n<\/div>\n\n\n\n\nQu'est-ce qu'un robinet \u00e0 soupape ?<\/a>\n\n<\/div>\n\n\n\n\nFabricant de robinets-vannes \u00e0 commande manuelle<\/a>\n\n<\/div>\n\n\n\n\nDiff\u00e9rence entre la vanne \u00e0 vanne et la vanne papillon<\/a>\n\n<\/div>\n\n\n\n\nQu'est-ce qu'un robinet-vanne ?<\/a>\n\n<\/div>\n\n\n\n\nRobinet \u00e0 soupape et robinet \u00e0 bille<\/a>\n\n<\/div>\n\n\n\nDix articles avant et apr\u00e8s<\/p>\n\n\n\n
L'UE fournira du gaz \u00e0 l'Ukraine via le gazoduc Vojany \u2013 Zeco Valve | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\nLa diff\u00e9rence entre le robinet \u00e0 tournant sph\u00e9rique flottant et le robinet \u00e0 tournant sph\u00e9rique mont\u00e9 sur tourillon \u2013 Zeco Valve | Fabricant de vannes industrielles<\/a><\/p>\n\n\n\nL'Ukraine importera 7,23 m\u00e8tres cubes de gaz \u2013 Zeco Valve | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\nComment calculer le dimensionnement d'une soupape de s\u00e9curit\u00e9 (soupape de surpression) \u2013 Zeco Valve | Fabricant de vannes industrielles<\/a><\/p>\n\n\n\nLa demande mondiale de gaz augmentera chaque ann\u00e9e de 2,21 TP3T \u2013 Zeco Valve | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\nL'alimentation en \u00e9nergie du gazoduc de Sib\u00e9rie d\u00e9butera en ao\u00fbt \u2013 Zeco Valve | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\nComment fonctionne un actionneur de v\u00e9rin pneumatique \u2013 Zeco Valve | Fabricant de vannes industrielles<\/a><\/p>\n\n\n\nLa Chine aide le Turkm\u00e9nistan \u00e0 am\u00e9liorer sa production de gaz \u2013 Zeco Valve | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\nOl\u00e9oduc Northern Gateway approuv\u00e9 par le gouvernement canadien \u2013 Zeco Valve | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\nLes caract\u00e9ristiques du robinet \u00e0 bille 3 voies \u2013 Zeco Valve | Fabricant de vannes industrielles<\/a><\/p>","protected":false},"excerpt":{"rendered":"La construction de la vanne de r\u00e9gulation ressemble principalement \u00e0 un globe, cette vanne de r\u00e9gulation peut \u00eatre \u00e0 simple ou \u00e0 double si\u00e8ge. Du nom\u2026 Lire plus<\/a><\/p>","protected":false},"author":2,"featured_media":12828,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[2368],"tags":[3149,2641,2645,2642,2643,2646,2647,2644],"class_list":["post-12829","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-control-valve","tag-actuated-globe-valve","tag-control-valve","tag-double-seat-valve","tag-double-seated-control-valve","tag-double-seated-valve","tag-single-seat-valve","tag-single-seated-control-valve","tag-single-seated-valve","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/01\/20220105074420-61d54c54d552c.jpg",750,276,false],"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/fr\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":2368,"name":"Control Valve","slug":"control-valve","term_group":0,"term_taxonomy_id":2368,"taxonomy":"category","description":"","parent":0,"count":12,"filter":"raw","cat_ID":2368,"category_count":12,"category_description":"","cat_name":"Control Valve","category_nicename":"control-valve","category_parent":0}],"tag_info":[{"term_id":3149,"name":"Actuated Globe Valve - Globe Control Valve","slug":"actuated-globe-valve","term_group":0,"term_taxonomy_id":3149,"taxonomy":"post_tag","description":"\r\nWhat is a Globe Control Valve?<\/h2>\r\n\r\n\r\n\r\n\r\nWhen precise control is needed, globe valves are the favorite in many industries. Globe valves use the linear motion of a plunger that seats in a seat in a plane that divides the upper and lower half of the valve. In 2-way globe valves, the lower half is connected to the inlet port, and the upper half is connected to the outlet. On 3-way globe valves, there is a third port directly below the seat. There are 2 different styles of globe valve, each for a specific function:\r\n\r\n\r\n\r\n\r\n\r\nGET ACTUATED GLOBE VALVE PRICE<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n![\"\"](\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/08\/2-WAY-GLOBE-VALVE.png\")
<\/figure>\r\n\r\n\r\n<\/div>\r\n\r\n\r\n\r\n\r\n\r\n\r\n![\"\"](\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/08\/3-way-globe-valve.png\")
<\/figure>\r\n\r\n\r\n<\/div>\r\n\r\n\r\n<\/div>\r\n\r\n\r\n\r\nWhat is an Actuated Globe Valve?<\/h2>\r\n\r\n\r\n\r\n\r\nActuated globe valve is the most advanced available in design, features, performance, and cost-effectiveness. Its design includes superior proportional control characteristics and safety features for a wide variety of applications, ranging from common fluids to the most aggressive chemicals. Accurate fluid control is achieved by positioning the valve plug to vary the aperture between the plug and the seat ring. The valve design allows the use of different plug\/seat sets to provide desired flow versus travel characteristics. A wide range of controllable CV is available, from 0.23 to a maximum of 105. Reduced trim is an option.\r\n\r\n\r\n\r\n\r\nApplications of Actuated Globe Valves<\/h2>\r\n\r\n\r\n\r\n\r\nActuated Globe valves are available in a variety of sizes (NPS 1\/2 thru 36) and provide users with high performance and reliability. They can help solve an array of application needs from big to small, hot to cold, and general to severe.\r\n\r\n\r\n\r\n\r\n\r\nBonnets are available in different styles to accommodate different application temperatures. This primarily includes standard bonnets and optional extension bonnets, which may be used to protect packing materials when the valve is used in extremely hot or cold applications.\r\n\r\n\r\n\r\n\r\n\r\nThere are also special packing configurations for applications that require the packing system to maintain fugitive emission concentrations below environmental standards.\r\n\r\n\r\n\r\n\r\n\r\nSome of the most typical applications of globe valves include cooling water systems, fuel oil systems, feedwater or chemical feed systems, boiler, and main steam vents and drains, and turbine lube oil systems.\r\n\r\n","parent":0,"count":7,"filter":"raw"},{"term_id":2641,"name":"Control Valve","slug":"control-valve","term_group":0,"term_taxonomy_id":2641,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2645,"name":"double seat valve","slug":"double-seat-valve","term_group":0,"term_taxonomy_id":2645,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2642,"name":"double seated control valve","slug":"double-seated-control-valve","term_group":0,"term_taxonomy_id":2642,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2643,"name":"double seated valve","slug":"double-seated-valve","term_group":0,"term_taxonomy_id":2643,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2646,"name":"single seat valve","slug":"single-seat-valve","term_group":0,"term_taxonomy_id":2646,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2647,"name":"single seated control valve","slug":"single-seated-control-valve","term_group":0,"term_taxonomy_id":2647,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2644,"name":"single seated valve","slug":"single-seated-valve","term_group":0,"term_taxonomy_id":2644,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"}],"taxonomy_info":{"category":[{"value":2368,"label":"Control Valve"}],"post_tag":[{"value":3149,"label":"Actuated Globe Valve - Globe Control Valve"},{"value":2641,"label":"Control Valve"},{"value":2645,"label":"double seat valve"},{"value":2642,"label":"double seated control valve"},{"value":2643,"label":"double seated valve"},{"value":2646,"label":"single seat valve"},{"value":2647,"label":"single seated control valve"},{"value":2644,"label":"single seated valve"}]},"yoast_head":"\nThe difference between single seated & double seated control valves<\/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\/the-difference-between-single-seated-double-seated-control-valves-zeco-valve-industrial-valve-manufacturer.html\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The difference between single seated & double seated control valves\" \/>\n<meta property=\"og:description\" content=\"The control valve construction is mostly like a globe, this control valve could be either, single-seated or double seated. From the name ... Lire plus\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/fr\/the-difference-between-single-seated-double-seated-control-valves-zeco-valve-industrial-valve-manufacturer.html\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\n<meta property=\"article:published_time\" content=\"2022-01-05T07:44:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-08-11T06:29:30+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/01\/20220105074420-61d54c54d552c.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"750\" \/>\n\t<meta property=\"og:image:height\" content=\"276\" \/>\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=\"4 minutes\">\n<script 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- Il offre une grande plage de r\u00e9glage et une fermeture \u00e9tanche<\/li>
- Une prise r\u00e9versible est disponible<\/li><\/ul>\n\n\n\n
Inconv\u00e9nients des vannes \u00e0 simple si\u00e8ge<\/h2>\n\n\n\n
- Un gros actionneur est n\u00e9cessaire<\/li>
- La r\u00e9cup\u00e9ration de pression est faible<\/li>
- Utilis\u00e9 uniquement pour les applications de petit diam\u00e8tre<\/li>
- La force n\u00e9cessaire pour entra\u00eener la tige est \u00e9lev\u00e9e<\/li><\/ul>\n\n\n\n
Applications des vannes \u00e0 simple si\u00e8ge<\/h2>\n\n\n\n
Ces vannes sont utilis\u00e9es pour contr\u00f4ler une large gamme de param\u00e8tres de processus et, en raison de cette caract\u00e9ristique, elles sont utilis\u00e9es dans la production de p\u00e9trole et de gaz et dans la production d'\u00e9lectricit\u00e9.<\/p>\n\n\n\n
Qu'est-ce qu'une vanne \u00e0 double si\u00e8ge (vanne \u00e0 double port)\u00a0?<\/h2>\n\n\n\n
Une vanne \u00e0 double si\u00e8ge est une vanne guid\u00e9e par le haut et par le bas et ces vannes ont deux clapets et deux si\u00e8ges. Dans ce type de vanne, la pression de ligne agit vers le haut dans un clapet et vers le bas dans l'autre, et de ce fait, la force est \u00e9quilibr\u00e9e. Ces vannes sont utilis\u00e9es pour les applications haute pression. Les vannes \u00e0 double orifice sont des vannes \u00e0 pression \u00e9quilibr\u00e9e et peuvent fermer le clapet de la vanne contre une pression de fonctionnement plus \u00e9lev\u00e9e. Une fermeture \u00e9tanche n'est pas possible car dans les vannes \u00e0 simple si\u00e8ge, ces vannes ont une r\u00e9ponse de d\u00e9bit rapide et une plus grande capacit\u00e9 que les vannes \u00e0 simple si\u00e8ge et elles sont utilis\u00e9es lorsqu'une fermeture \u00e9tanche n'est pas n\u00e9cessaire. Dans cette vanne, les deux ports ne peuvent pas \u00eatre ouverts en m\u00eame temps. Les vannes \u00e0 double port peuvent d\u00e9tourner le d\u00e9bit d\u2019une seule conduite d\u2019\u00e9coulement vers une ou plusieurs sorties.<\/p>\n\n\n\n
Avantages des vannes \u00e0 double si\u00e8ge<\/h2>\n\n\n\n
- Il peut \u00eatre utilis\u00e9 pour des vannes plus grandes<\/li>
- Il peut \u00eatre utilis\u00e9 pour les services \u00e0 haut d\u00e9bit et haute pression<\/li><\/ul>\n\n\n\n
Inconv\u00e9nients des vannes \u00e0 double si\u00e8ge<\/h2>\n\n\n\n
- Une fermeture \u00e9tanche n'est pas possible<\/li>
- En raison de l'\u00e9rosion et de la cavitation, les parties du corps pourraient s'user<\/li><\/ul>\n\n\n\n
Quelle est la diff\u00e9rence entre une vanne de r\u00e9gulation \u00e0 simple si\u00e8ge et \u00e0 double si\u00e8ge\u00a0?<\/h2>\n\n\n\n
- 1) La vanne de r\u00e9gulation \u00e0 simple si\u00e8ge n'a qu'une seule garniture et un si\u00e8ge, la vanne de r\u00e9gulation \u00e0 double si\u00e8ge a deux garnitures et deux si\u00e8ges.<\/li>
- 2) La vanne de r\u00e9gulation \u00e0 si\u00e8ge unique pr\u00e9sente une petite fuite et il est facile d'obtenir une \u00e9tanch\u00e9it\u00e9 et une d\u00e9coupe strictes\u00a0; La vanne de r\u00e9gulation \u00e0 double si\u00e8ge pr\u00e9sente une fuite importante.<\/li>
- 3) La vanne de r\u00e9gulation \u00e0 simple si\u00e8ge permet une petite pression diff\u00e9rentielle\u00a0; la vanne de r\u00e9gulation \u00e0 double si\u00e8ge est soumise \u00e0 une petite force de d\u00e9s\u00e9quilibre et permet une grande pression diff\u00e9rentielle.<\/li>
- 4) La vanne de r\u00e9gulation \u00e0 simple si\u00e8ge a une petite capacit\u00e9 de d\u00e9bit et la vanne de r\u00e9gulation \u00e0 double si\u00e8ge a une grande capacit\u00e9 de d\u00e9bit. Par rapport \u00e0 d'autres vannes de r\u00e9gulation du m\u00eame diam\u00e8tre, la vanne de r\u00e9gulation \u00e0 double si\u00e8ge peut traverser plus de fluide, et la capacit\u00e9 de d\u00e9bit de la vanne de r\u00e9gulation \u00e0 double si\u00e8ge de m\u00eame diam\u00e8tre est d'environ 20%-50% plus grande que celle de la vanne de r\u00e9gulation \u00e0 simple si\u00e8ge.<\/li>
- 5) En raison de la pouss\u00e9e importante du fluide vers l'organe interne de la vanne, c'est-\u00e0-dire que la force d\u00e9s\u00e9quilibr\u00e9e est importante. Par cons\u00e9quent, dans l'application d'une diff\u00e9rence de pression \u00e9lev\u00e9e et d'un grand diam\u00e8tre, il n'est pas appropri\u00e9 d'utiliser une vanne de r\u00e9gulation \u00e0 un seul si\u00e8ge\u00a0; La vanne de r\u00e9gulation \u00e0 double si\u00e8ge ne convient pas aux applications diff\u00e9rentielles \u00e0 haute pression. En raison de son chemin d'\u00e9coulement complexe, il ne convient pas au contr\u00f4le des fluides contenant des fibres et des fluides \u00e0 haute viscosit\u00e9.<\/li><\/ul>\n\n\n\n
Le si\u00e8ge de vanne de commande pneumatique \u00e0 double si\u00e8ge est dot\u00e9 de bouchons de vanne inf\u00e9rieurs et sup\u00e9rieurs. Le fluide s'\u00e9coule \u00e9galement sur le c\u00f4t\u00e9 gauche du corps, traverse le si\u00e8ge de vanne et le clapet et s'\u00e9coule du c\u00f4t\u00e9 droit. Elle peut d\u00e9biter plus de fluide que la vanne de r\u00e9gulation habituelle \u00e0 si\u00e8ge unique avec un diam\u00e8tre nominal similaire, et la capacit\u00e9 de d\u00e9bit est \u00e9galement \u00e9lev\u00e9e d'environ 20% \u00e0 25%. Les forces agissant sur les bouchons inf\u00e9rieur et sup\u00e9rieur peuvent s'annuler, donc la pression de d\u00e9s\u00e9quilibre est faible, la diff\u00e9rence de pression de fonctionnement est grande.<\/p>\n\n\n\n
- 1.Les options de la vanne de r\u00e9gulation \u00e0 si\u00e8ge unique\u00a0: la fuite est faible, la pression d\u00e9s\u00e9quilibr\u00e9e est grande et la diff\u00e9rence de pression admissible est \u00e9galement plus petite par rapport \u00e0 la vanne \u00e0 double si\u00e8ge.<\/li>
- 2. Les caract\u00e9ristiques de la vanne de r\u00e9gulation \u00e0 double si\u00e8ge : grande diff\u00e9rence de pression admissible. Il est presque toujours particuli\u00e8rement appropri\u00e9 pour les applications pr\u00e9sentant des d\u00e9bits \u00e9lev\u00e9s, des chutes impitoyables et d\u2019\u00e9normes fuites. <\/li><\/ul>\n\n\n\n\n
Balises associ\u00e9es :<\/h2>\n\n\n\n\n
\nSoupape ZECO<\/a>\n\n<\/div>\n\n\n\n\nRobinet \u00e0 papillon NBR<\/a>\n\n<\/div>\n\n\n\n\nQue sont les vannes de r\u00e9gulation automatique ?<\/a>\n\n<\/div>\n\n\n\n\nDiff\u00e9rence entre la vanne \u00e0 vanne et la vanne papillon<\/a>\n\n<\/div>\n\n\n\n\nVanne et robinet \u00e0 boisseau sph\u00e9rique<\/a>\n\n<\/div>\n\n\n\n\nQu'est-ce qu'un robinet \u00e0 soupape ?<\/a>\n\n<\/div>\n\n\n\n\nFabricant de robinets-vannes \u00e0 commande manuelle<\/a>\n\n<\/div>\n\n\n\n\nDiff\u00e9rence entre la vanne \u00e0 vanne et la vanne papillon<\/a>\n\n<\/div>\n\n\n\n\nQu'est-ce qu'un robinet-vanne ?<\/a>\n\n<\/div>\n\n\n\n\nRobinet \u00e0 soupape et robinet \u00e0 bille<\/a>\n\n<\/div>\n\n\n\nDix articles avant et apr\u00e8s<\/p>\n\n\n\n
L'UE fournira du gaz \u00e0 l'Ukraine via le gazoduc Vojany \u2013 Zeco Valve | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\n
La diff\u00e9rence entre le robinet \u00e0 tournant sph\u00e9rique flottant et le robinet \u00e0 tournant sph\u00e9rique mont\u00e9 sur tourillon \u2013 Zeco Valve | Fabricant de vannes industrielles<\/a><\/p>\n\n\n\n
L'Ukraine importera 7,23 m\u00e8tres cubes de gaz \u2013 Zeco Valve | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\n
Comment calculer le dimensionnement d'une soupape de s\u00e9curit\u00e9 (soupape de surpression) \u2013 Zeco Valve | Fabricant de vannes industrielles<\/a><\/p>\n\n\n\n
La demande mondiale de gaz augmentera chaque ann\u00e9e de 2,21 TP3T \u2013 Zeco Valve | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\n
L'alimentation en \u00e9nergie du gazoduc de Sib\u00e9rie d\u00e9butera en ao\u00fbt \u2013 Zeco Valve | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\n
Comment fonctionne un actionneur de v\u00e9rin pneumatique \u2013 Zeco Valve | Fabricant de vannes industrielles<\/a><\/p>\n\n\n\n
La Chine aide le Turkm\u00e9nistan \u00e0 am\u00e9liorer sa production de gaz \u2013 Zeco Valve | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\n
Ol\u00e9oduc Northern Gateway approuv\u00e9 par le gouvernement canadien \u2013 Zeco Valve | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\n
Les caract\u00e9ristiques du robinet \u00e0 bille 3 voies \u2013 Zeco Valve | Fabricant de vannes industrielles<\/a><\/p>","protected":false},"excerpt":{"rendered":"
La construction de la vanne de r\u00e9gulation ressemble principalement \u00e0 un globe, cette vanne de r\u00e9gulation peut \u00eatre \u00e0 simple ou \u00e0 double si\u00e8ge. Du nom\u2026 Lire plus<\/a><\/p>","protected":false},"author":2,"featured_media":12828,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[2368],"tags":[3149,2641,2645,2642,2643,2646,2647,2644],"class_list":["post-12829","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-control-valve","tag-actuated-globe-valve","tag-control-valve","tag-double-seat-valve","tag-double-seated-control-valve","tag-double-seated-valve","tag-single-seat-valve","tag-single-seated-control-valve","tag-single-seated-valve","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/01\/20220105074420-61d54c54d552c.jpg",750,276,false],"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/fr\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":2368,"name":"Control Valve","slug":"control-valve","term_group":0,"term_taxonomy_id":2368,"taxonomy":"category","description":"","parent":0,"count":12,"filter":"raw","cat_ID":2368,"category_count":12,"category_description":"","cat_name":"Control Valve","category_nicename":"control-valve","category_parent":0}],"tag_info":[{"term_id":3149,"name":"Actuated Globe Valve - Globe Control Valve","slug":"actuated-globe-valve","term_group":0,"term_taxonomy_id":3149,"taxonomy":"post_tag","description":"\r\n
What is a Globe Control Valve?<\/h2>\r\n\r\n\r\n\r\n\r\nWhen precise control is needed, globe valves are the favorite in many industries. Globe valves use the linear motion of a plunger that seats in a seat in a plane that divides the upper and lower half of the valve. In 2-way globe valves, the lower half is connected to the inlet port, and the upper half is connected to the outlet. On 3-way globe valves, there is a third port directly below the seat. There are 2 different styles of globe valve, each for a specific function:\r\n\r\n\r\n\r\n\r\n\r\nGET ACTUATED GLOBE VALVE PRICE<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n
\r\n\r\n\r\n\r\n\r\n\r\n<\/figure>\r\n\r\n\r\n<\/div>\r\n\r\n\r\n\r\n\r\n\r\n\r\n<\/figure>\r\n\r\n\r\n<\/div>\r\n\r\n\r\n<\/div>\r\n\r\n\r\n\r\nWhat is an Actuated Globe Valve?<\/h2>\r\n\r\n\r\n\r\n\r\nActuated globe valve is the most advanced available in design, features, performance, and cost-effectiveness. Its design includes superior proportional control characteristics and safety features for a wide variety of applications, ranging from common fluids to the most aggressive chemicals. Accurate fluid control is achieved by positioning the valve plug to vary the aperture between the plug and the seat ring. The valve design allows the use of different plug\/seat sets to provide desired flow versus travel characteristics. A wide range of controllable CV is available, from 0.23 to a maximum of 105. Reduced trim is an option.\r\n\r\n\r\n\r\n\r\n
Applications of Actuated Globe Valves<\/h2>\r\n\r\n\r\n\r\n\r\nActuated Globe valves are available in a variety of sizes (NPS 1\/2 thru 36) and provide users with high performance and reliability. They can help solve an array of application needs from big to small, hot to cold, and general to severe.\r\n\r\n\r\n\r\n\r\n\r\nBonnets are available in different styles to accommodate different application temperatures. This primarily includes standard bonnets and optional extension bonnets, which may be used to protect packing materials when the valve is used in extremely hot or cold applications.\r\n\r\n\r\n\r\n\r\n\r\nThere are also special packing configurations for applications that require the packing system to maintain fugitive emission concentrations below environmental standards.\r\n\r\n\r\n\r\n\r\n\r\nSome of the most typical applications of globe valves include cooling water systems, fuel oil systems, feedwater or chemical feed systems, boiler, and main steam vents and drains, and turbine lube oil systems.\r\n\r\n","parent":0,"count":7,"filter":"raw"},{"term_id":2641,"name":"Control Valve","slug":"control-valve","term_group":0,"term_taxonomy_id":2641,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2645,"name":"double seat valve","slug":"double-seat-valve","term_group":0,"term_taxonomy_id":2645,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2642,"name":"double seated control valve","slug":"double-seated-control-valve","term_group":0,"term_taxonomy_id":2642,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2643,"name":"double seated valve","slug":"double-seated-valve","term_group":0,"term_taxonomy_id":2643,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2646,"name":"single seat valve","slug":"single-seat-valve","term_group":0,"term_taxonomy_id":2646,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2647,"name":"single seated control valve","slug":"single-seated-control-valve","term_group":0,"term_taxonomy_id":2647,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2644,"name":"single seated valve","slug":"single-seated-valve","term_group":0,"term_taxonomy_id":2644,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"}],"taxonomy_info":{"category":[{"value":2368,"label":"Control Valve"}],"post_tag":[{"value":3149,"label":"Actuated Globe Valve - Globe Control Valve"},{"value":2641,"label":"Control Valve"},{"value":2645,"label":"double seat valve"},{"value":2642,"label":"double seated control valve"},{"value":2643,"label":"double seated valve"},{"value":2646,"label":"single seat valve"},{"value":2647,"label":"single seated control valve"},{"value":2644,"label":"single seated valve"}]},"yoast_head":"\n
The difference between single seated & double seated control valves<\/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\/the-difference-between-single-seated-double-seated-control-valves-zeco-valve-industrial-valve-manufacturer.html\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The difference between single seated & double seated control valves\" \/>\n<meta property=\"og:description\" content=\"The control valve construction is mostly like a globe, this control valve could be either, single-seated or double seated. From the name ... 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