{"id":1978,"count":4,"description":"\r\n\r\n\r\n\r\nOBTENIR LE PRIX DE L'ACTIONNEUR DE SOUPAPE \u00c0 CR\u00c9MAILL\u00c8RE ET PIGNON<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n

Qu'est-ce qu'un actionneur de vanne \u00e0 cr\u00e9maill\u00e8re et pignon\u00a0?<\/h2>\r\n\r\n\r\n\r\n\r\nLes actionneurs \u00e0 cr\u00e9maill\u00e8re et pignon sont des dispositifs m\u00e9caniques utilis\u00e9s pour ouvrir et fermer automatiquement des vannes ou des registres, g\u00e9n\u00e9ralement pour des applications industrielles.\r\n\r\n\r\n\r\n\r\n\r\n\u201cRack and pinion\u201d is a generic term for a pair of gears that convert linear motion into rotational motion. A linear gear bar called \u201cthe rack\u201d engages teeth on a circular gear called \"the pinion\". The linear force exerted on the rack will cause a rotational motion of the pinion.\r\n\r\n\r\n\r\n\r\n\r\nPour l'automatisation des vannes, une conception d'actionneur courante utilise deux cr\u00e9maill\u00e8res de type piston se d\u00e9pla\u00e7ant dans des directions oppos\u00e9es pour assurer des forces \u00e9quilibr\u00e9es sur le pignon. G\u00e9n\u00e9ralement, la pression pneumatique est utilis\u00e9e pour alimenter l\u2019actionneur. En appliquant une pression sur les cr\u00e9maill\u00e8res du piston, le pignon peut \u00eatre tourn\u00e9 dans la position souhait\u00e9e. Le bas du pignon se connecte \u00e0 la tige de valve pour ouvrir et fermer la valve lorsque le pignon tourne.\r\n\r\n\r\n\r\n\r\n

Composants de l'actionneur de vanne \u00e0 cr\u00e9maill\u00e8re et pignon<\/h2>\r\n\r\n\r\n\r\n
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Caract\u00e9ristiques de l'actionneur de vanne \u00e0 cr\u00e9maill\u00e8re et pignon<\/h2>\r\n\r\n\r\n\r\n\r\nLes actionneurs pneumatiques \u00e0 cr\u00e9maill\u00e8re et pignon offrent de nombreuses fonctionnalit\u00e9s et avantages pour l'actionnement op\u00e9rationnel des vannes \u00e0 bille, papillon et \u00e0 boisseau sph\u00e9rique.\r\n\r\n\r\n\r\n\r\n
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    • La conception compacte et l\u00e9g\u00e8re permet une installation facile avec une unit\u00e9 d'ajustement et d'oubli virtuelle sans entretien. Quel que soit votre emplacement, c'est le choix id\u00e9al pour une installation sans tracas.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
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        • Une utilisation op\u00e9rationnelle vari\u00e9e offre aux industries et aux applications des solutions rapides et s\u00e9curis\u00e9es pour les cycles n\u00e9cessitant une \u00e0 des centaines d'op\u00e9rations par jour.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
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            • Les faibles d\u00e9penses initiales et les cycles de vie prolong\u00e9s offrent des solutions rentables aux \u00e9quivalents \u00e9lectriques co\u00fbteux. Lorsqu\u2019elles sont correctement entretenues, les compagnies a\u00e9riennes pr\u00e9sentent peu d\u2019inconv\u00e9nients.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
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                • Les installations de montage direct et les plates-formes ISO aux normes internationales permettent un assemblage, des tests et une exp\u00e9dition rapides pour les applications critiques. Les \u00e9lectrovannes et les interrupteurs de fin de course offrent des ajouts boulonn\u00e9s.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
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                    • Clockwise or counterclockwise setup is available based on end users' requirements. In-House or In-Field adaption is offered as part of after sales or pre-installation supply service.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
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                        • Plusieurs rev\u00eatements de protection sont disponibles aupr\u00e8s des fabricants en standard ou en compl\u00e9ment OEM. Cela inclut les rev\u00eatements RAL sp\u00e9cifiques au PTFE, \u00e0 l'\u00e9poxy, \u00e0 l'\u00e9mail et \u00e0 la marine.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n\r\n\r\n

                          Conception \u00e0 rack unique ou \u00e0 double rack<\/h2>\r\n\r\n\r\n\r\n\r\nLes actionneurs \u00e0 cr\u00e9maill\u00e8re et pignon offrent les plages de couple et de rotation les plus larges par rapport aux autres m\u00e9canismes de conversion pour convertir la force lin\u00e9aire en couple de rotation. Il a une efficacit\u00e9 m\u00e9canique \u00e9lev\u00e9e et les couples qu\u2019ils sont capables de produire vont de quelques Nm \u00e0 plusieurs milliers de Nm.\r\n\r\n\r\n\r\n\r\n\r\nCependant, un inconv\u00e9nient potentiel de la conception \u00e0 cr\u00e9maill\u00e8re et pignon est le jeu. Un jeu se produit lorsque les engrenages \u00e0 cr\u00e9maill\u00e8re et pignon ne sont pas compl\u00e8tement align\u00e9s et qu'il existe un petit espace entre chaque connexion \u00e0 engrenages. Ce d\u00e9salignement peut provoquer une usure des engrenages pendant le cycle de vie de l'actionneur, ce qui \u00e0 son tour augmente le jeu.\r\n\r\n\r\n\r\n\r\n\r\nUne unit\u00e9 \u00e0 double cr\u00e9maill\u00e8re utilise une paire de cr\u00e9maill\u00e8res sur les c\u00f4t\u00e9s oppos\u00e9s du pignon. Cela permet d'\u00e9liminer le jeu d\u00fb \u00e0 une force contraire, de doubler \u00e9galement le couple de sortie de l'unit\u00e9 et d'augmenter l'efficacit\u00e9 m\u00e9canique du syst\u00e8me.\r\n\r\n\r\n\r\n\r\n

                          Simple effet ou double effet<\/h2>\r\n\r\n\r\n\r\n\r\nDans un actionneur \u00e0 simple effet, l'air n'est fourni que d'un c\u00f4t\u00e9 du piston et n'est responsable du mouvement du piston que dans une seule direction. Le mouvement du piston en sens inverse est assur\u00e9 par un ressort m\u00e9canique. Les actionneurs \u00e0 simple effet conservent l'air comprim\u00e9 mais effectuent un travail dans une seule direction. Un inconv\u00e9nient des v\u00e9rins \u00e0 simple effet est la force de sortie incoh\u00e9rente sur une course compl\u00e8te en raison de la force du ressort oppos\u00e9e.\r\n\r\n\r\n\r\n\r\n\r\nDans un actionneur \u00e0 double effet, l'air est fourni aux chambres des deux c\u00f4t\u00e9s du ou des pistons. Une pression d'air plus \u00e9lev\u00e9e d'un c\u00f4t\u00e9 peut entra\u00eener le(s) piston(s) de l'autre c\u00f4t\u00e9. Les actionneurs \u00e0 double effet sont utilis\u00e9s lorsque le travail doit \u00eatre effectu\u00e9 dans les deux sens.\r\n\r\n\r\n\r\n\r\n\r\nL'un des avantages des v\u00e9rins \u00e0 double effet est la force de sortie constante sur toute la plage de rotation. Les inconv\u00e9nients des v\u00e9rins \u00e0 double effet sont leur besoin d'air comprim\u00e9 pour le mouvement dans les deux sens et l'absence de position d\u00e9finie en cas de panne de puissance ou de pression.\r\n\r\n\r\n\r\n\r\n

                          Proc\u00e9dure de d\u00e9pannage g\u00e9n\u00e9rale<\/h2>\r\n\r\n\r\n\r\n
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                          Probl\u00e8mes<\/td>\r\nInspection<\/td>\r\nSolutions<\/td>\r\n<\/tr>\r\n
                          Pneumatic valve isn't working<\/td>\r\nL'\u00e9lectrovanne ou sa bobine est endommag\u00e9e.\/Les ports de l'\u00e9lectrovanne sont bouch\u00e9s.<\/td>\r\nRemplacez l'\u00e9lectrovanne ou sa bobine. Retirez les contaminants attach\u00e9s aux ports sol\u00e9no\u00efdes.<\/td>\r\n<\/tr>\r\n
                          Pneumatic valve isn't working<\/td>\r\nTestez avec l'actionneur sous pression d'alimentation en air pour v\u00e9rifier l'\u00e9tanch\u00e9it\u00e9 des joints du piston et l'\u00e9tat de l'actionneur.<\/td>\r\nRemplacez les joints de piston us\u00e9s ou l'actionneur endommag\u00e9.<\/td>\r\n<\/tr>\r\n
                          Pneumatic valve isn't working<\/td>\r\nLa vanne est obstru\u00e9e par des contaminants.<\/td>\r\n\u00c9liminez les contaminants ou remplacez les pi\u00e8ces endommag\u00e9es.<\/td>\r\n<\/tr>\r\n
                          Pneumatic valve isn't working<\/td>\r\nThe valve is switched to manual\r\nmode.<\/td>\r\nRemettez la poign\u00e9e de l'op\u00e9rateur en mode pneumatique.<\/td>\r\n<\/tr>\r\n
                          La valve pneumatique agit lentement, paresseusement<\/td>\r\nLa pression motrice est incorrecte.<\/td>\r\nAugmentez la pression d'alimentation en air \u00e0 0,4-0,7 MPa.<\/td>\r\n<\/tr>\r\n
                          La valve pneumatique agit lentement, paresseusement<\/td>\r\nL'actionneur est sous-dimensionn\u00e9 avec un couple de sortie insuffisant.<\/td>\r\nS\u00e9lectionnez le mod\u00e8le d'actionneur correct.<\/td>\r\n<\/tr>\r\n
                          La valve pneumatique agit lentement, paresseusement<\/td>\r\nIl y a des probl\u00e8mes avec la fixation de la valve ou d'autres pi\u00e8ces.<\/td>\r\nR\u00e9ajustez le serrage de la valve.<\/td>\r\n<\/tr>\r\n
                          La valve pneumatique agit lentement, paresseusement<\/td>\r\nLa pression du gaz de puissance est trop faible.\/Le tube connect\u00e9 au gaz est bouch\u00e9.<\/td>\r\nRemplacez les accessoires par des ports plus grands.\/Supprimez le blocage ou le filtre.<\/td>\r\n<\/tr>\r\n
                          Il n'y a aucune indication provenant du commutateur limit\u00e9.<\/td>\r\nIl y a une panne de la carte d'alimentation.<\/td>\r\nV\u00e9rifiez et r\u00e9parez l\u2019alimentation \u00e9lectrique.<\/td>\r\n<\/tr>\r\n
                          Il n'y a aucune indication provenant du commutateur limit\u00e9.<\/td>\r\nLa position de la came de commutation limit\u00e9e n'est pas pr\u00e9cise.<\/td>\r\nR\u00e9glez la came de commutation limit\u00e9e dans la bonne position.<\/td>\r\n<\/tr>\r\n
                          Il n'y a aucune indication provenant du commutateur limit\u00e9.<\/td>\r\nLe micro-interrupteur est en panne.<\/td>\r\nRemplacez le micro-interrupteur.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n","link":"https:\/\/zecovalve.com\/fr\/tag\/rack-and-pinion-actuators","name":"Actionneurs \u00e0 cr\u00e9maill\u00e8re et pignon","slug":"rack-and-pinion-actuators","taxonomy":"post_tag","meta":[],"yoast_head":"\nRack and Pinion Valve Actuator - Rack and Pinion Actuators | 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\/tag\/rack-and-pinion-actuators\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rack and Pinion Valve Actuator - Rack and Pinion Actuators | ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"GET RACK AND PINION VALVE ACTUATOR PRICE What is Rack and Pinion Valve Actuator? Rack and pinion actuators are mechanical devices used to automatically open and close valves or dampers, usually for industrial applications. \u201cRack and pinion\u201d is a generic term for a pair of gears that convert linear motion into rotational motion. A linear gear bar called \u201cthe rack\u201d engages teeth on a circular gear called “the pinion”. The linear force exerted on the rack will cause a rotational motion of the pinion. For valve automation, a common actuator design uses two piston-type racks moving in opposite directions to ensure balanced forces on the pinion. Typically, pneumatic air pressure is used to power the actuator. By applying pressure to the piston racks, the pinion can be turned to the desired position. The pinion bottom connects to the valve stem to open and close the valve as the pinion turns. Components of Rack and Pinion Valve Actuator Features of Rack and Pinion Valve Actuator Pneumatic rack and pinion actuators offer many features and benefits for the operational actuation of the ball, butterfly, and plug valves. The compact and lightweight design provides an easy installation with a virtual maintenance free fit and forget unit. Whatever your location this is the perfect choice for hassle free installation. Varied operational usage provides industries and applications with fast acting, fail-safe solutions for cycles requiring single to hundreds of operations per day. Low initial cost outlays and extended life cycles offer cost-effective solutions to that expensive electric equivalents. When serviced correctly airlines provide little downside. Direct mount facilities and international standard iso platforms allow quick assembly, testing, and despatch for critical applications. Solenoid Valves & Valve Limit Switches offer bolt on additions. Clockwise or counterclockwise setup is available based on end users’ requirements. In-House or In-Field adaption is offered as part of after sales or pre-installation supply service. Multiple protection coatings are available from Manufacturers as standard or as an OEM addition. This includes PTFE, Epoxy, Enamel & Marine specific RAL coatings. Single Rack vs Dual Rack Design Rack-and-pinion actuators offer the widest ranges of torque and rotation compared to other conversion mechanisms for converting linear force to rotational torque. It has high mechanical efficiency and the torques that they are able to produce range from a couple of Nm to multiple thousands of Nm. However, one potential drawback of the rack-and-pinion design is backlash. Backlash occurs when rack and pinion gears are not completely aligned and there is a small gap between each geared connection. This misalignment can cause wear on the gears during the life cycle of the actuator, which in turn increases backlash. A double rack unit uses a pair of racks on opposite sides of the pinion. This helps eliminate backlash due to a counter force and also doubles the output torque of the unit and increases the mechanical efficiency of the system. Single Acting vs Double Acting In a single-acting actuator, the air is only supplied to one side of the piston and is responsible for the movement of the piston in only one direction. The movement of the piston in the opposite direction is performed by a mechanical spring. Single-acting actuators conserve compressed air but perform work in only one direction. A downside of single-acting cylinders is the inconsistent output force through a full stroke due to the opposing spring force. In a double-acting actuator, the air is supplied to chambers on both sides of the piston(s). Higher air pressure on one side can drive the piston(s) to the other side. Double-acting actuators are used when work needs to be performed in both directions. One of the advantages of double-acting cylinders is the constant output force through a full rotation range. The drawbacks of double-acting cylinders are their need for compressed air for movement in both directions and a lack of a defined position in case of a power or pressure failure. General Troubleshooting Procedure Problems Inspection Solutions Pneumatic valve isn’t working The solenoid valve or its coil is damaged.\/The solenoid ports are plugged. Replace the solenoid valve or its coil. Remove contaminants attached to the solenoid ports. Pneumatic valve isn’t working Test with the actuator under air supply pressure, to check the piston seals for leaking and the actuator for damage. Replace the worn down piston seals or damaged actuator. Pneumatic valve isn’t working The valve is plugged with contaminants. Remove contaminants or replace the damaged parts. Pneumatic valve isn’t working The valve is switched to manual mode. Turn the handle of gear operator back to pneumatic mode. Pneumatic valve is acting slowly, sluggishly The motive pressure is incorrect. Increase the air supply pressure to 0.4-0.7Mpa. Pneumatic valve is acting slowly, sluggishly The actuator is undersized with insufficient torque output. Select the correct actuator model. Pneumatic valve is acting slowly, sluggishly There are problems with the valve binding or the other parts. Re-adjust the valve binding. Pneumatic valve is acting slowly, sluggishly The power gas pressure is too low.\/The tubing connected to the gas is plugged. Replace the accessories with larger ports.\/Remove blockage or filter There is no indication from the limited switch. There is a power board failure. Check and repair the power supply. There is no indication from the limited switch. The position of the limited switch cam is not in accurate position. Adjust the limited switch cam to the correct position. There is no indication from the limited switch. The microswitch has failed. Replace the microswitch.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/fr\/tag\/rack-and-pinion-actuators\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\n<meta property=\"og:image\" content=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/12\/Components-of-Rack-and-Pinion-Valve-Actuator-1024x489.png\" \/>\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\/tag\/rack-and-pinion-actuators#webpage\",\"url\":\"https:\/\/zecovalve.com\/tag\/rack-and-pinion-actuators\",\"name\":\"Rack and Pinion Valve Actuator - Rack and Pinion Actuators | ZECO Valve\",\"isPartOf\":{\"@id\":\"https:\/\/zecovalve.com\/#website\"},\"breadcrumb\":{\"@id\":\"https:\/\/zecovalve.com\/tag\/rack-and-pinion-actuators#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zecovalve.com\/tag\/rack-and-pinion-actuators\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zecovalve.com\/tag\/rack-and-pinion-actuators#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\/tag\/rack-and-pinion-actuators\",\"url\":\"https:\/\/zecovalve.com\/tag\/rack-and-pinion-actuators\",\"name\":\"Rack and Pinion Actuators\"}}]}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","_links":{"self":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/tags\/1978","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/tags"}],"about":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/taxonomies\/post_tag"}],"wp:post_type":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/posts?tags=1978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}