{"id":8562,"date":"2021-12-30T07:24:17","date_gmt":"2021-12-30T07:24:17","guid":{"rendered":"https:\/\/zecovalve.com\/news-function-of-pneumatic-valve-positioner-api-approved-valve-manufacturer.html"},"modified":"2022-11-01T05:53:26","modified_gmt":"2022-11-01T05:53:26","slug":"news-function-of-pneumatic-valve-positioner-api-approved-valve-manufacturer","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/fr\/news-function-of-pneumatic-valve-positioner-api-approved-valve-manufacturer.html","title":{"rendered":"Positionneur de vanne de r\u00e9gulation pneumatique"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Qu&#039;est-ce qu&#039;un positionneur dans une vanne de r\u00e9gulation\u00a0?<\/h2>\n\n\n\n<p>Un positionneur de vanne est un dispositif qui interface avec le contr\u00f4leur de processus et l&#039;actionneur et est connect\u00e9 \u00e0 la tige de vanne afin de pouvoir d\u00e9tecter la position exacte de la vanne. Le positionneur re\u00e7oit un signal d&#039;entr\u00e9e du contr\u00f4leur de processus et envoie un signal \u00e0 l&#039;actionneur pour d\u00e9placer la vanne.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Configuration du positionneur de vanne<\/h2>\n\n\n\n<p>Les positionneurs de vannes peuvent \u00eatre divis\u00e9s en positionneurs de vannes pneumatiques, positionneurs de vannes \u00e9lectropneumatiques et positionneurs de vannes intelligents en fonction de leur structure et de leur principe de fonctionnement.<\/p>\n\n\n\n<p>Le positionneur de vanne peut augmenter la puissance de sortie de la vanne de r\u00e9gulation, r\u00e9duire le d\u00e9calage de transmission du signal de r\u00e9gulation, acc\u00e9l\u00e9rer le mouvement de la tige de vanne, am\u00e9liorer la lin\u00e9arit\u00e9 de la vanne, surmonter le frottement de la tige de vanne et \u00e9liminer l&#039;influence de la force d\u00e9s\u00e9quilibr\u00e9e afin d&#039;assurer le bon positionnement de la vanne de r\u00e9gulation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Adaptateurs de positionneur de vanne<\/h2>\n\n\n\n<p>Les actionneurs couramment utilis\u00e9s sont les actionneurs pneumatiques, les actionneurs \u00e9lectriques, il existe des courses droites et des courses angulaires. Pour l&#039;ouverture et la fermeture automatiques et manuelles de toutes sortes de vannes, plaques anti-vent, etc.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-valve-positioner-working-principle\">Principe de fonctionnement du positionneur de vanne<\/h2>\n\n\n\n<p>Le positionneur de vanne est l&#039;accessoire principal de la vanne de r\u00e9gulation. Il prend le signal de d\u00e9placement de la tige de soupape comme signal de mesure de retour d&#039;entr\u00e9e, prend le signal de sortie du contr\u00f4leur comme signal de r\u00e9glage, poursuit la comparaison, lorsque les deux ont un \u00e9cart, modifie son signal de sortie vers le m\u00e9canisme ex\u00e9cutif, provoque l&#039;action du m\u00e9canisme ex\u00e9cutif. , la correspondance biunivoque entre le multiple de d\u00e9placement de la tige de vanne et le signal de sortie du contr\u00f4leur est \u00e9tablie. Par cons\u00e9quent, le positionneur de vanne consiste en un signal de mesure du d\u00e9placement de la tige de vanne envoy\u00e9 \u00e0 la sortie du syst\u00e8me de commande par r\u00e9troaction du signal r\u00e9gl\u00e9 par le contr\u00f4leur. Les variables de contr\u00f4le du syst\u00e8me de contr\u00f4le sont les signaux de sortie du positionneur de vanne vers l&#039;actionneur.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Classification des positionneurs de vannes<\/h2>\n\n\n\n<p>Le positionneur de vanne, en fonction du signal d&#039;entr\u00e9e, est divis\u00e9 en un positionneur de vanne pneumatique et un positionneur de vanne \u00e9lectrique. Le signal d&#039;entr\u00e9e du positionneur de vanne pneumatique est un signal de gaz standard, par exemple un signal de gaz 20 ~ 100KPA, son signal de sortie est un signal de gaz standard. Le signal d&#039;entr\u00e9e du positionneur de vanne \u00e9lectrique est le signal de courant ou de tension standard, tel qu&#039;un signal de courant 4 ~ 20 mA ou un signal de tension 1 ~ 5 V, etc. Dans la vanne \u00e9lectrique, le positionneur sera converti en force \u00e9lectromagn\u00e9tique, le signal de gaz est ensuite \u00e9mis. \u00e0 la vanne de commande \u00e0 cadran.<br>Le sens d&#039;action peut \u00eatre divis\u00e9 en un positionneur de vanne unidirectionnelle et un positionneur de vanne \u00e0 deux voies. Lorsque le positionneur de vanne unidirectionnelle est utilis\u00e9 dans l&#039;actionneur \u00e0 piston, le positionneur de vanne fonctionne dans une seule direction et le positionneur de vanne \u00e0 deux voies fonctionne des deux c\u00f4t\u00e9s du cylindre de l&#039;actionneur \u00e0 piston et dans les deux sens.<\/p>\n\n\n\n<p>Selon la sortie du positionneur de vanne et le gain du signal d&#039;entr\u00e9e, les symboles sont divis\u00e9s en positionneur de vanne positif et positionneur de vanne n\u00e9gatif. Lorsque le signal d&#039;entr\u00e9e du positionneur de vanne \u00e0 action positive augmente, le signal de sortie augmente \u00e9galement, de sorte que le gain est positif. Lorsque le signal d&#039;entr\u00e9e du positionneur de vanne \u00e0 contre-action augmente, le signal de sortie est r\u00e9duit et, par cons\u00e9quent, le gain est n\u00e9gatif.<\/p>\n\n\n\n<p>Selon le signal d&#039;entr\u00e9e d&#039;un positionneur de vanne, il s&#039;agit d&#039;un signal analogique ou d&#039;un signal num\u00e9rique, qui peut \u00eatre divis\u00e9 en un positionneur de vanne g\u00e9n\u00e9ral et un positionneur de vanne \u00e9lectrique \u00e0 bus de terrain. Le signal d&#039;entr\u00e9e d&#039;un positionneur de vanne g\u00e9n\u00e9ral est un signal analogique de pression d&#039;air ou de courant et de tension, et le signal d&#039;entr\u00e9e du positionneur de vanne \u00e9lectrique du bus de terrain est un signal num\u00e9rique du bus de terrain.<\/p>\n\n\n\n<p>Selon que le positionneur de vanne avec CPU peut \u00eatre divis\u00e9 en positionneur de vanne \u00e9lectrique g\u00e9n\u00e9ral et positionneur de vanne \u00e9lectrique intelligent. Le positionneur de vanne \u00e9lectrique g\u00e9n\u00e9ral n&#039;a pas de processeur, il n&#039;a donc pas d&#039;intelligence et ne peut pas g\u00e9rer les op\u00e9rations intelligentes pertinentes. Le positionneur de vanne intelligent avec CPU peut g\u00e9rer le fonctionnement intelligent, par exemple, il peut effectuer la compensation non lin\u00e9aire du canal aller, etc. Le positionneur de vanne \u00e9lectrique du bus de terrain peut \u00e9galement ex\u00e9cuter le module de fonction tel que PID pour r\u00e9aliser l&#039;op\u00e9ration correspondante .<\/p>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/categorie-de-produits\/globe-valve\/\">Fabricant de robinets \u00e0 soupape \u2013 Diff\u00e9rents types de robinets \u00e0 soupape<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/categorie-de-produits\/gate-valve\/\">Fabricant de robinets-vannes \u2013 Diff\u00e9rents types de robinets-vannes<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/categorie-de-produits\/ball-valve\/\">Fabricant de robinets \u00e0 tournant sph\u00e9rique \u2013 Diff\u00e9rents types de robinets \u00e0 tournant sph\u00e9rique<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/categorie-de-produits\/butterfly-valve\/\">Fabricant de vannes papillon \u2013 Diff\u00e9rents types de vannes papillon<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/categorie-de-produits\/balancing-valve\/\">Vanne d&#039;\u00e9quilibrage \u2013 Vanne CVC<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/categorie-de-produits\/check-valve\/\">Fabricant de clapets anti-retour \u2013 Diff\u00e9rents types de clapets anti-retour<\/a>\n\n<\/div>\n\n\n\n<p>Dix articles avant et apr\u00e8s<\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/news-5-common-solenoid-valves-api-approved-valve-manufacturer.html\/\">Actualit\u00e9s \u2013 5 \u00e9lectrovannes courantes | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/news-5-characteristics-of-solenoid-valve-api-approved-valve-manufacturer.html\/\">Actualit\u00e9s \u2013 5 caract\u00e9ristiques de l&#039;\u00e9lectrovanne | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/news-6-kinds-of-valves-commonly-used-in-long-distance-pipeline-api-approved-valve-manufacturer.html\/\">Actualit\u00e9s \u2013 6 types de vannes couramment utilis\u00e9es dans les pipelines longue distance | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/news-5-tips-for-choosing-a-home-valve-api-approved-valve-manufacturer.html\/\">Actualit\u00e9s \u2013 5 conseils pour choisir une vanne domestique | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/news-application-of-new-intelligent-valve-positioner-in-control-valve-api-approved-valve-manufacturer.html\/\">Actualit\u00e9s \u2013 Application du nouveau positionneur de vanne intelligent dans la vanne de r\u00e9gulation | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/news-modular-intelligent-electric-valve-controller-api-approved-valve-manufacturer.html\/\">Actualit\u00e9s \u2013 Contr\u00f4leur de vanne \u00e9lectrique intelligent modulaire | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/news-the-development-course-of-valve-api-approved-valve-manufacturer.html\/\">Actualit\u00e9s \u2013 Le cours de d\u00e9veloppement de Valve | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/news-6-characteristics-of-valve-api-approved-valve-manufacturer.html\/\">Actualit\u00e9s \u2013 6 caract\u00e9ristiques de la vanne | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/news-application-of-valves-in-water-supply-system-api-approved-valve-manufacturer.html\/\">Actualit\u00e9s \u2013 Application de vannes dans le syst\u00e8me d&#039;approvisionnement en eau | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/news-difference-between-flange-connection-threaded-connection-and-welded-connection-api-approved-valve-manufacturer.html\/\">Actualit\u00e9s \u2013 Diff\u00e9rence entre la connexion \u00e0 bride, la connexion filet\u00e9e et la connexion soud\u00e9e | Fabricant de vannes agr\u00e9\u00e9 API<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Qu&#039;est-ce qu&#039;un positionneur dans une vanne de r\u00e9gulation\u00a0? Un positionneur de vanne est un dispositif qui s&#039;interface avec le contr\u00f4leur de processus et l&#039;actionneur\u2026 <a title=\"Positionneur de vanne de r\u00e9gulation pneumatique\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/fr\/news-function-of-pneumatic-valve-positioner-api-approved-valve-manufacturer.html\" aria-label=\"Plus sur Positionneur de vanne de r\u00e9gulation pneumatique\">Lire plus<\/a><\/p>","protected":false},"author":2,"featured_media":26426,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1],"tags":[3226],"class_list":["post-8562","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-cage-guided-control-valve","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/08\/Control-Valve-0-1024x768.jpg",1024,768,true],"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/fr\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":1,"name":"Uncategorized","slug":"uncategorized","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":452,"filter":"raw","cat_ID":1,"category_count":452,"category_description":"","cat_name":"Uncategorized","category_nicename":"uncategorized","category_parent":0}],"tag_info":[{"term_id":3226,"name":"Cage Guided Control Valve","slug":"cage-guided-control-valve","term_group":0,"term_taxonomy_id":3226,"taxonomy":"post_tag","description":"<!-- 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>GET CAGE GUIDED CONTROL VALVE PRICE<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_a0a547-00\"} \/-->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-what-is-cage-guided-control-valve\">What is Cage Guided Control Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA more modern version of the globe valve design uses a piston-shaped plug inside a surrounding cage with ports cast or machined into it.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThese cage-guided globe valves throttle flow by uncovering more or less of the port area in the surrounding cage as the plug moves up and down. The cage also serves to guide the plug so the stem need not be subjected to lateral forces as in a stem-guided valve design.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe Cage guided control valve is a balanced valve that can be used as a dump valve, pressure regulator, suction controller, recirculation valve, and plunger lift applications. Compared to the stem-guided series, cage guided control valves feature larger trim sizes (available in 2\" to 10\" end connections) for higher valve coefficients (Cv). Cage guided control valves can be equipped with an optional electric drive or operated with compressed air to meet zero-emission requirements.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:image {\"align\":\"center\",\"id\":26426,\"width\":512,\"height\":384,\"sizeSlug\":\"large\",\"linkDestination\":\"none\"} -->\r\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img class=\"wp-image-26426\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/08\/Control-Valve-0-1024x768.jpg\" alt=\"\" width=\"512\" height=\"384\" \/><\/figure>\r\n<!-- \/wp:image -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Structure of Cage Guided Globe Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nCage-guided globe valves are available with both balanced and unbalanced plugs. A balanced plug has one or more ports drilled from top to bottom, allowing fluid pressure to equalize on both sides of the plug. This helps minimize the forces acting on the plug which must be overcome by the actuator:\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:image {\"align\":\"center\",\"id\":27294,\"width\":587,\"height\":336,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\r\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img class=\"wp-image-27294\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/11\/Cage-guided-globe-valves.webp\" alt=\"\" width=\"587\" height=\"336\" \/><\/figure>\r\n<!-- \/wp:image -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nUnbalanced plugs generate a force equal to the product of the differential pressure across the plug and the plug\u2019s area (F = PA), which may be quite substantial in some applications.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBalanced plugs do not generate this same force because they equalize the pressure on both sides of the plug, however, they exhibit the disadvantage of one more leak path when the valve is in the fully closed position (through the balancing ports, past the piston ring, and out the cage ports):\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:image {\"align\":\"center\",\"id\":27295,\"width\":552,\"height\":274,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\r\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img class=\"wp-image-27295\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/11\/Cage-guided-globe-valves-principle.webp\" alt=\"\" width=\"552\" height=\"274\" \/><\/figure>\r\n<!-- \/wp:image -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThus, balanced and unbalanced cage-guided globe valves exhibit similar characteristics to double ported and single-ported stem- or port-guided globe valves, and for similar reasons.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBalanced cage guided valves are easy to position, just like double-ported stem-guided and port-guided globe valves.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nHowever, balanced cage-guided valves tend to leak more when in the shut position due to a greater number of leak paths, much the same as with double-ported stem-guided and port-guided globe valves.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Components of Cage Guide Globe Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list {\"ordered\":true} -->\r\n<ol>\r\n \t<li>Valve Trims<\/li>\r\n<\/ol>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nAccording to the needs of the working conditions, different materials and surface hardening treatments can easily be chosen to meet the requirements of each function module of trim to improve its performance of the corrosion, cavitation, and erosion resistance, and lengthen service life.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list {\"ordered\":true,\"start\":2} -->\r\n<ol start=\"2\">\r\n \t<li>Valve body<\/li>\r\n<\/ol>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe body of LN8 series control valves consists of two passages from upper and lower, forming a shape like a letter \"S\". The design of an elliptical section reduces the flow resistance and turbulent flow to keep the flow fluent. The flap in the middle of the upper passage can reduce the eddy flow and increase the flow capacity.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list {\"ordered\":true,\"start\":3} -->\r\n<ol start=\"3\">\r\n \t<li>Actuator<\/li>\r\n<\/ol>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe standard mate is a Multi-spring pneumatic diaphragm actuator, which can be used in many conditions with the features of strong output force, high reliability, long lifespan, and extensive application. The output force changes with the number of springs. The high-stress-resistant diaphragm, bearing maximum pressure of 0.5 MPa air supply, gives the control valve a reliable shutoff. This type of actuator has a long life cycle of more than 1 million times.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Features of Cage Guided Control Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Modular design concept, combining the American and Japanese schools of high-precision control and the German school of the modular concept.<\/li>\r\n \t<li>The cage valve inner cavity of the valve body is S-shaped distribution, smooth and without dead ends; there are guide wings inside the valve body, which can reduce the mutual force of the medium inside the valve body and reduce the occurrence of cavitation.<\/li>\r\n \t<li>The use of sleeve guidance, large guide diameter, smooth guidance, with good dynamic stability.<\/li>\r\n \t<li>The cage valve seat adopts a floating design, while the sealing surface adopts a tapered form to ensure good alignment of the sealing sub.<\/li>\r\n \t<li>Sleeve window control flow characteristics, flow characteristics control accurately.<\/li>\r\n \t<li>The structure of the inner part is balanced, allowing a large differential pressure, small operating force, and large flow capacity.<\/li>\r\n \t<li>Equipment, linear and quick-open flow characteristics are available.<\/li>\r\n \t<li>Good use in the temperature range of -80 to 593\u2103.<\/li>\r\n \t<li>And pipeline connection with RF, RJ, FM, and other flange types and SW, and BW welding types.<\/li>\r\n \t<li>The flange distance conforms to GB\/T 17213.3-2005 \/ IEC 60534-3-1:2000; or ISA S75.03-1992 standard.<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->","parent":0,"count":5,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}],"post_tag":[{"value":3226,"label":"Cage Guided Control Valve"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Pneumatic Control Valve Positioner | 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\/news-function-of-pneumatic-valve-positioner-api-approved-valve-manufacturer.html\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pneumatic Control Valve Positioner | ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"What is a Positioner in Control Valve? A valve positioner is a device that interfaces with the process controller and the actuator ... 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