{"id":16446,"date":"2022-06-21T05:38:10","date_gmt":"2022-06-21T05:38:10","guid":{"rendered":"https:\/\/zecovalve.com\/?p=16446"},"modified":"2023-02-23T06:33:46","modified_gmt":"2023-02-23T06:33:46","slug":"working-principle-of-pneumatic-globe-valve","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/fr\/working-principle-of-pneumatic-globe-valve.html","title":{"rendered":"Principe de fonctionnement du robinet \u00e0 soupape pneumatique"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>1. Introduction du pneumatique&nbsp;<\/strong><strong>robinet \u00e0 soupape<\/strong><\/h2>\n\n\n\n<p>La vanne d&#039;arr\u00eat pneumatique, largement utilis\u00e9e dans le syst\u00e8me important des mines et des centrales nucl\u00e9aires, est un \u00e9quipement cl\u00e9 important pour assurer la s\u00e9curit\u00e9 de la production de la centrale \u00e9lectrique. Dans le fonctionnement r\u00e9el, de nombreux facteurs tels que le r\u00e9glage du m\u00e9canisme manuel, la d\u00e9faillance de l&#039;emballage, un fonctionnement inappropri\u00e9, un d\u00e9bit d&#039;admission d&#039;air insuffisant entra\u00eenent de nombreuses d\u00e9faillances qui menacent le fonctionnement s\u00fbr et stable de la centrale \u00e9lectrique. Dans cet article, en prenant comme exemple le robinet \u00e0 soupape pneumatique produit par SEREG, analysez le principe de fonctionnement d&#039;un robinet \u00e0 soupape pneumatique typique pour centrale \u00e9lectrique et d\u00e9crivez en d\u00e9tail le r\u00e9glage du point neutre. Il constitue une base pour le fonctionnement et le d\u00e9pannage du robinet \u00e0 soupape pneumatique SEREG ou d&#039;un robinet \u00e0 soupape pneumatique similaire utilis\u00e9 dans la centrale \u00e9lectrique.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>2. Introduction au principe de fonctionnement du robinet \u00e0 soupape pneumatique\u00a0<\/strong><\/h2>\n\n\n\n<p>Principe de fonctionnement du pneumatique\u00a0<a href=\"https:\/\/zecovalve.com\/fr\/products\/globe-valve-check-valve\/\">robinet \u00e0 soupape<\/a>: la plupart des vannes utilisant l&#039;air comprim\u00e9 comme source d&#039;alimentation adoptent une t\u00e9l\u00e9commande. La salle de contr\u00f4le principale d\u00e9clenche manuellement ou automatiquement la commande d&#039;action pour faire agir l&#039;\u00e9lectrovanne d&#039;admission et d&#039;\u00e9chappement pour fournir et \u00e9vacuer l&#039;air comprim\u00e9 vers l&#039;actionneur. L&#039;air comprim\u00e9 agit sur le piston ou le diaphragme pour surmonter le frottement de l&#039;action de la valve et la force du ressort sur la tige. Appuyez vers le bas (perte de pression d&#039;air, ouvrez la vanne J) ou soulevez (perte de pression d&#039;air, ouvrez la vanne F1) la tige de la vanne, en entra\u00eenant le noyau de la vanne de haut en bas pour ouvrir ou fermer la vanne. Lorsque la pression d&#039;air est perdue dans la vanne et que la t\u00eate d&#039;entra\u00eenement comprime l&#039;air, la vanne sera dans la position s\u00fbre d&#039;ouverture compl\u00e8te ou de fermeture compl\u00e8te selon les exigences du syst\u00e8me. La pression d&#039;alimentation en air de l&#039;instrument de service est g\u00e9n\u00e9ralement de 4 \u00e0 9 bars. Avant d&#039;entrer dans la vanne, filtrez et purifiez l&#039;air comprim\u00e9 \u00e0 travers le filtre, puis r\u00e9duisez la pression \u00e0 travers le <a href=\"https:\/\/zecovalve.com\/fr\/water-pressure-reducing-valve-manufacturer-zeco-valve.html\/\" data-internallinksmanager029f6b8e52c=\"8\" title=\"D\u00e9tendeur\" target=\"_blank\" rel=\"noopener\">d\u00e9tendeur<\/a>. La lecture du manom\u00e8tre d&#039;entr\u00e9e ne d\u00e9passe pas 4 bars. Le r\u00e9glage peut \u00eatre r\u00e9alis\u00e9 en ajustant la vis de r\u00e9glage install\u00e9e sur le dessus du <a href=\"https:\/\/zecovalve.com\/fr\/water-pressure-reducing-valve-manufacturer-zeco-valve.html\/\" data-internallinksmanager029f6b8e52c=\"8\" title=\"D\u00e9tendeur\" target=\"_blank\" rel=\"noopener\">d\u00e9tendeur<\/a>, et le couvercle de protection doit \u00eatre desserr\u00e9 avant le r\u00e9glage.<\/p>\n\n\n\n<p>Les quatre types de vannes \u00e0 soupape pneumatiques les plus courantes et les plus utilis\u00e9es sont\u00a0: la vanne ferm\u00e9e par perte d&#039;air du volant, la vanne ouverte par perte d&#039;air du volant, la vanne ferm\u00e9e par perte d&#039;air sans volant et la vanne ouverte par perte d&#039;air sans volant. .<\/p>\n\n\n\n<!-- Andy:h-related-tags -->\n<h2 id=\"h-related-tags\">Balises associ\u00e9es :<\/h2>\n<!-- \/Andy:h-related-tags -->\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/\">Soupape ZECO<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/introduction-of-epdm-nbr-butterfly-valve-seat-industrial-valve-information-news-zeco-valve.html\/\">Robinet \u00e0 papillon NBR<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/gate-valve-problems.html\/\">R\u00e9paration de vannes \u00e0 vanne<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/difference-between-gate-valves-and-ball-valves.html\/\">Vanne et robinet \u00e0 boisseau sph\u00e9rique<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/advantages-and-disadvantages-of-globe-valves.html\/\">Qu'est-ce qu'un robinet \u00e0 soupape ?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/what-is-an-axial-flow-silent-check-valve.html\/\">Qu'est-ce qu'un clapet anti-retour axial ?<\/a>\n\n<\/div>\n\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/the-function-of-globe-valve-in-pipeline-system.html\/\">Que sont les vannes \u00e0 soupape\u00a0?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/produit\/manual-gate-valve\/\">Fabricant de robinets-vannes \u00e0 commande manuelle<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/difference-between-gate-valve-and-butterfly-valve.html\/\">Diff\u00e9rence entre la vanne \u00e0 vanne et la vanne papillon<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/china-gate-valves-suppliersnon-rising-stem-gate-valvesks-gate-valves.html\/\">Qu'est-ce qu'un robinet-vanne ?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/tag\/shanghai-pressure-reducing-valve-factory\/\">Usine de soupapes de r\u00e9duction de pression de Shanghai<\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>1. Introduction de la vanne \u00e0 soupape pneumatique La vanne d&#039;arr\u00eat pneumatique, largement utilis\u00e9e dans le syst\u00e8me important des mines et des centrales nucl\u00e9aires, est un\u2026 <a title=\"Principe de fonctionnement du robinet \u00e0 soupape pneumatique\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/fr\/working-principle-of-pneumatic-globe-valve.html\" aria-label=\"Plus sur Principe de fonctionnement du robinet \u00e0 soupape pneumatique\">Lire plus<\/a><\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1929],"tags":[3149,1805,3671,2261,2259,2260],"class_list":["post-16446","post","type-post","status-publish","format-standard","hentry","category-globe-valve","tag-actuated-globe-valve","tag-globe-valve","tag-globe-valve-flow-direction","tag-introduction-of-pneumatic-globe-valve","tag-pneumatic-globe-valve","tag-working-principle-of-pneumatic-globe-valve","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":false,"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/fr\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":1929,"name":"Globe Valve","slug":"globe-valve","term_group":0,"term_taxonomy_id":1929,"taxonomy":"category","description":"","parent":0,"count":21,"filter":"raw","cat_ID":1929,"category_count":21,"category_description":"","cat_name":"Globe Valve","category_nicename":"globe-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":"<!-- wp:heading -->\r\n<h2 id=\"h-what-is-a-globe-valve\">What is a Globe Control Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\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<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:generateblocks\/button-container {\"uniqueId\":\"6d8495a3\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"3d442e11\",\"hasUrl\":true,\"target\":true,\"backgroundColor\":\"#0366d6\",\"textColor\":\"#ffffff\",\"backgroundColorHover\":\"#222222\",\"textColorHover\":\"#ffffff\",\"paddingTop\":\"15\",\"paddingRight\":\"20\",\"paddingBottom\":\"15\",\"paddingLeft\":\"20\"} -->\r\n<a class=\"gb-button gb-button-3d442e11 gb-button-text\" href=\"https:\/\/zecovalve.com\/contact\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET ACTUATED GLOBE VALVE PRICE<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\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\":26709,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\r\n<figure class=\"wp-block-image size-full\"><img class=\"wp-image-26709\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/08\/2-WAY-GLOBE-VALVE.png\" alt=\"\" \/><\/figure>\r\n<!-- \/wp:image -->\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\":26710,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\r\n<figure class=\"wp-block-image size-full\"><img class=\"wp-image-26710\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/08\/3-way-globe-valve.png\" alt=\"\" \/><\/figure>\r\n<!-- \/wp:image -->\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>What is an Actuated Globe Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\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<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Applications of Actuated Globe Valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\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<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\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<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\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<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\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<!-- \/wp:paragraph -->","parent":0,"count":7,"filter":"raw"},{"term_id":1805,"name":"globe valve","slug":"globe-valve","term_group":0,"term_taxonomy_id":1805,"taxonomy":"post_tag","description":"","parent":0,"count":21,"filter":"raw"},{"term_id":3671,"name":"Globe Valve Flow Direction","slug":"globe-valve-flow-direction","term_group":0,"term_taxonomy_id":3671,"taxonomy":"post_tag","description":"<!-- wp:generateblocks\/button-container {\"uniqueId\":\"f8260ba6\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"e4f70767\",\"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-e4f70767 gb-button-text\" href=\"mailto:commercial@zecovalve.com\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET GLOBE VALVE FLOW DIRECTION INFORMATION<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_d5c49d-10\"} \/-->\r\n\r\n<!-- wp:heading -->\r\n<h2>Globe Valve Direction of Flow<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<a href=\"https:\/\/zecovalve.com\/product-category\/globe-valve\">Globe valves<\/a> have become one of the most-used valves in companies in almost every industry. And with their ability to start, stop, and throttle fluid flow within a pipeline, it\u2019s easy to see why.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nGenerally speaking, the flow of globe vales is from down to up. It means the medium will go through from the disc downside and then out by the upside. Globe valves usually adopt a compulsory sealed design, so closing the valve offer pressure to the disc against the seat. So if you want to open the valve, the globe valve disc must overcome resistance made by stem and packing friction, medium pressure will offer adverse pressure which helps open the valve. It means you can use less force than the closing valve. So the stem diameter should be larger, to avoid stem bending fault. (depending on the metal material's physical performance of the stem ). In recent years, there are more and more valve pressure seals, the medium through the upper disc to the down disc, so the close valve force is smaller than the open valve force, valve shaft diameter is allowed to be smaller.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBut some opinions disagree with it, especially for a globe valve with a larger size (for example, a size bigger than DN250), the globe valve usually adopts a valve pressure seal, and considering closing valve force, it is easy to reach the seal performance. But it should take the stabilization of the valve into consideration when the valve stem diameter is smaller than the seat diameter.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBut how exactly do these valves work and what\u2019s the globe valve direction flow?\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>How do Globe Valves Work?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA globe valve is primarily designed to stop, start and regulate flow. It is comprised of a movable disk and a stationary ring seat in a generally spherical body. The seat of a globe valve is in the middle of and parallel to the pipe, and the opening in the seat is closed off with the disk. When the handle is turned, manually or through an actuator, a disc is lowered or raised by means of the valve stem. When the disc is fully lowered, the fluid flow is shut off. When the disc is fully raised, the fluid flow is at its maximum rate. When the disc is raised to the less than maximum level, the fluid flow is regulated in proportion to the vertical travel of the disc.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-globe-valve-flow-direction\"><strong>Globe Valve Flow Direction<\/strong><\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n-For low-temperature applications, globe and angle valves are ordinarily installed so that pressure under the disk. This promotes easy operation, helps protect the packing, and eliminates a certain amount of erosive action to the seat and disk faces.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n-For high-temperature steam service, globe valves are installed so that pressure is above the disk. Otherwise, the stem will contract upon cooling and tend to lift the disk off the seat ( and leak).\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Flow to Open (FTO)<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nAlso referred to as standard or forward flow, or in globe valves, flow under the seat. Think about when you've controlled the flow of water from a garden hose with your thumb. Your thumb acts like the face of the plug in a globe valve - flow is pushing against your thumb to open a flow path for the water.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Flow to Close (FTC)<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nAlso referred to as reverse flow or in globe valves, flow over the seat. Consider a drain plug in a bathtub. The flow direction is against the back or top of the plug (rather than the face) creating a tendency for the plug to close into the drain.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:image {\"align\":\"center\",\"id\":27401,\"width\":376,\"height\":387,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\r\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img class=\"wp-image-27401\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2023\/02\/GLOBE-VALVE-FTO-FTC.png\" alt=\"\" width=\"376\" height=\"387\" \/><\/figure>\r\n<!-- \/wp:image -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":8,"filter":"raw"},{"term_id":2261,"name":"introduction of pneumatic globe valve","slug":"introduction-of-pneumatic-globe-valve","term_group":0,"term_taxonomy_id":2261,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2259,"name":"pneumatic globe valve","slug":"pneumatic-globe-valve","term_group":0,"term_taxonomy_id":2259,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":2260,"name":"working principle of pneumatic globe valve","slug":"working-principle-of-pneumatic-globe-valve","term_group":0,"term_taxonomy_id":2260,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1929,"label":"Globe Valve"}],"post_tag":[{"value":3149,"label":"Actuated Globe Valve - Globe Control Valve"},{"value":1805,"label":"globe valve"},{"value":3671,"label":"Globe Valve Flow Direction"},{"value":2261,"label":"introduction of pneumatic globe valve"},{"value":2259,"label":"pneumatic globe valve"},{"value":2260,"label":"working principle of pneumatic globe valve"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Working Principle of Pneumatic Globe Valve - ZECO Valve<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zecovalve.com\/fr\/working-principle-of-pneumatic-globe-valve.html\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Working Principle of Pneumatic Globe Valve - ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"1. Introduction of pneumatic&nbsp;globe valve Pneumatic cut-off valve, widely used in the important system of mine and nuclear power plant, is an ... 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