- 1. Les pi\u00e8ces non m\u00e9talliques doivent \u00eatre retir\u00e9es de l'agent de nettoyage imm\u00e9diatement apr\u00e8s le nettoyage et ne doivent pas \u00eatre tremp\u00e9es pendant une longue p\u00e9riode.<\/li>
- 2. Apr\u00e8s le nettoyage, il doit \u00eatre assembl\u00e9 une fois que l'agent de nettoyage sur le mur lav\u00e9 s'est volatilis\u00e9 (il peut \u00eatre essuy\u00e9 avec un chiffon en soie non imbib\u00e9 d'agent de nettoyage), mais il ne doit pas \u00eatre mis de c\u00f4t\u00e9 pendant une longue p\u00e9riode, sinon il rouillera et \u00eatre contamin\u00e9 par la poussi\u00e8re.<\/li>
- 3. Les pi\u00e8ces d\u00e9tach\u00e9es d\u00e9mont\u00e9es peuvent \u00eatre nettoy\u00e9es par immersion. Les parties m\u00e9talliques des pi\u00e8ces non m\u00e9talliques d\u00e9mont\u00e9es peuvent \u00eatre frott\u00e9es avec un chiffon en soie propre et fin impr\u00e9gn\u00e9 de produit nettoyant (pour \u00e9viter que les fibres ne tombent et n'adh\u00e8rent aux pi\u00e8ces). Lors du nettoyage, toute graisse, salet\u00e9, colle accumul\u00e9e, poussi\u00e8re, etc. adh\u00e9r\u00e9e au mur doit \u00eatre \u00e9limin\u00e9e.<\/li>
- 4. Les nouvelles pi\u00e8ces doivent \u00eatre nettoy\u00e9es avant l'assemblage.<\/li>
- 5. Pendant l'assemblage, les d\u00e9bris m\u00e9talliques, les fibres, la graisse (sauf celles sp\u00e9cifi\u00e9es pour l'utilisation), la poussi\u00e8re, les autres impuret\u00e9s et les corps \u00e9trangers ne doivent pas contaminer, adh\u00e9rer ou rester \u00e0 la surface des pi\u00e8ces ou de la cavit\u00e9 int\u00e9rieure.<\/li>
- 6. Ce n'est que lorsque la pression autour du robinet \u00e0 bille est rel\u00e2ch\u00e9e que celui-ci peut \u00eatre d\u00e9mont\u00e9.<\/li><\/ul>\n\n\n\n
\u2161. Principales caract\u00e9ristiques du robinet \u00e0 tournant sph\u00e9rique \u00e9lectrique<\/h2>\n\n\n\n
- 1. La bague d'\u00e9tanch\u00e9it\u00e9 est en PTFE et d'autres mat\u00e9riaux \u00e9lastiques. Cette structure permet de bonnes performances d'\u00e9tanch\u00e9it\u00e9 et \u00e0 la vanne d'\u00eatre facilement scell\u00e9e, et la capacit\u00e9 d'\u00e9tanch\u00e9it\u00e9 du robinet \u00e0 tournant sph\u00e9rique augmente avec l'augmentation de la pression moyenne.<\/li>
- 2. Le joint de tige de valve est fiable. \u00c9tant donn\u00e9 que la tige de vanne tourne uniquement sans se soulever, le joint d'\u00e9tanch\u00e9it\u00e9 de la tige de vanne n'est pas facile \u00e0 endommager et la capacit\u00e9 d'\u00e9tanch\u00e9it\u00e9 augmente avec l'augmentation de la pression moyenne.<\/li>
- 3. Gr\u00e2ce au roulement de but\u00e9e r\u00e9duisant le couple de friction de la tige de vanne, un fonctionnement stable et flexible \u00e0 long terme de la tige de vanne \u00e0 bille \u00e9lectrique sera r\u00e9alis\u00e9.<\/li>
- 4. Fonction antistatique : un ressort est plac\u00e9 entre la bille, la tige de vanne et le corps de vanne pour exporter l'\u00e9lectricit\u00e9 statique g\u00e9n\u00e9r\u00e9e lors du processus de commutation.<\/li>
- 5. Faible r\u00e9sistance \u00e0 l'\u00e9coulement. Le robinet \u00e0 bille pr\u00e9sente la r\u00e9sistance au d\u00e9bit la plus faible parmi toutes les vannes. M\u00eame le robinet \u00e0 tournant sph\u00e9rique de diam\u00e8tre r\u00e9duit pr\u00e9sente une tr\u00e8s faible r\u00e9sistance au d\u00e9bit.<\/li>
- 6. Comme le PTFE et d'autres mat\u00e9riaux ont une bonne autolubrification et une faible perte de friction avec la bille, la dur\u00e9e de vie du robinet \u00e0 bille est longue.<\/li>
- 7. La tige de valve mont\u00e9e en bas et la marche convexe de la t\u00eate de la tige de valve emp\u00eachent la tige de valve de s'\u00e9jecter. Si le joint de tige de vanne est endommag\u00e9 par un incendie, un contact m\u00e9tallique peut \u00eatre form\u00e9 entre la marche convexe et le corps de vanne pour garantir l'\u00e9tanch\u00e9it\u00e9 de la tige de vanne.<\/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\nVanne et robinet \u00e0 boisseau sph\u00e9rique<\/a>\n\n<\/div>\n\n\n\n\nRobinet \u00e0 papillon NBR<\/a>\n\n<\/div>\n\n\n\n\nR\u00e9paration de vannes \u00e0 vanne<\/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\nQu'est-ce qu'un clapet anti-retour axial ?<\/a>\n\n<\/div>\n\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\nUsine de soupapes de r\u00e9duction de pression de Shanghai<\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"Le robinet \u00e0 boisseau sph\u00e9rique \u00e9lectrique est un actionneur important dans les syst\u00e8mes de contr\u00f4le de l'automatisation industrielle. Il tourne autour de la tige du robinet en ligne avec le ... 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":[1927],"tags":[805,2204,2173],"class_list":["post-16699","post","type-post","status-publish","format-standard","hentry","category-ball-valve","tag-ammonia","tag-ball-valves","tag-electric-ball-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":1927,"name":"Ball Valve","slug":"ball-valve","term_group":0,"term_taxonomy_id":1927,"taxonomy":"category","description":"Ball Valve Description","parent":0,"count":82,"filter":"raw","cat_ID":1927,"category_count":82,"category_description":"Ball Valve Description","cat_name":"Ball Valve","category_nicename":"ball-valve","category_parent":0}],"tag_info":[{"term_id":805,"name":"Ammonia Valve","slug":"ammonia","term_group":0,"term_taxonomy_id":805,"taxonomy":"post_tag","description":"\r\n\r\n\r\n\r\nGET AMMONIA VALVE PRICE<\/strong><\/strong><\/a>\r\n\r\n\r\n\r\n\r\n
Ammonia Process Overview<\/h2>\r\n\r\n\r\n\r\n\r\nAmmonia synthesis is used to produce ammonia from nitrogen and hydrogen. The produced ammonia can then be used as a fertilizer, or it can be further processed into urea or nitric acid. A mixture of hydrogen and nitrogen, usually originating from a steam reformer, is admitted to the synthesis loop and then compressed in two stages into the synthesis pressure of 150-300 bar (2200-4400 psi). The stream is preheated by heat exchange with the hot effluent coming out of the converter before entering the ammonia converter.\r\n\r\n\r\n\r\n\r\n\r\nThe ammonia conversion process is a compromise between temperature and pressure. For the catalyst to be efficient a temperature of at least 400 \u00b0C (750 \u00b0F) is needed,\r\n\r\n\r\n\r\n\r\n\r\nbut since the reaction is exothermic a higher temperature negatively affects product yield. To counter this issue, the pressure is increased to push the reaction equilibrium toward ammonia (thus increasing product yield). Heat is recovered from the effluent by generating steam and by pre-heating the incoming feed. The effluent is then sent to refrigeration before the product is separated from the medium and unreacted gas is recycled to the start of the synthesis loop.\r\n\r\n\r\n\r\n\r\n
![\"\"](\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/11\/ammonia-process.png\")
<\/figure>\r\n\r\n\r\n\r\nTypes of Valves in Ammonia Synthesis Loop<\/h2>\r\n\r\n\r\n\r\n\r\nThe role of valves in the ammonia synthesis loop is to control the flow of synthesis gas into the converter and to ensure the recycling of the unreacted synthesis gas.\r\n\r\n\r\n\r\n\r\n
Converter inlet valve<\/h3>\r\n\r\n\r\n\r\n\r\nThis valve is used to adjust the flow of synthesis gas into the converter. The flow may need to be adjusted to cope with temperature fluctuations in the converter.\r\n\r\n\r\n\r\n\r\n
Converter outlet valve<\/h3>\r\n\r\n\r\n\r\n\r\nThis valve is located after the reactor and is used to regulate the flow of effluent to the boiler.\r\n\r\n\r\n\r\n\r\n
Boiler bypass valve<\/h3>\r\n\r\n\r\n\r\n\r\nThis valve is used to control the flow of reactor effluent that bypasses the boiler, allowing the amount of pre-heating by the synthesis gas heat exchanger to be controlled.\r\n\r\n\r\n\r\n\r\n
Ammonia Uses & Operating Conditions<\/h2>\r\n\r\n\r\n\r\n\r\nAmmonia is a colorless gas that consists of nitrogen and hydrogen (NH3). At atmospheric conditions, it is lighter than air with a pungent odor. It is a highly caustic irritant that is both toxic and flammable. Because of its low boiling point, as a liquid, it must be stored under pressure or at a low temperature. Industrial ammonia is sold either as ammonia liquor or as pressurized or refrigerated anhydrous liquid ammonia transported in tank cars or cylinders. Household ammonia or ammonium hydroxide is a solution of NH3 in water. Most ammonia is consumed in the manufacturing of fertilizer. It is also a building block for the synthesis of many pharmaceutical products and is used in many commercial cleaning products.\r\n\r\n\r\n\r\n\r\n
Ammonia Service Ball Valves<\/h2>\r\n\r\n\r\n\r\n\r\nAmmonia valves are engineered for performance and reliability in the most hazardous industrial processes such as severe ammonia applications. These valves are available in a \u201cfloating\u201d type with two basic body configurations \u2013 split body in full and standard port and a unibody in standard port only.\r\n\r\n\r\n\r\n\r\n
Cleaning & Testing<\/h2>\r\n\r\n\r\n\r\n\r\nAll components used for ammonia service, in a gaseous or liquid state, are specifically cleaned to remove any traces of oil, grease, or hydrocarbon materials prior to the valve assembly. Valves for ammonia service are assembled in an oil-free restricted area by personnel who are specially equipped and trained to perform this task. The assembling area, work, surfaces, equipment, and tools are specially maintained to ensure cleanliness requirements are met.\r\n\r\n","parent":0,"count":3,"filter":"raw"},{"term_id":2204,"name":"Ball Valves","slug":"ball-valves","term_group":0,"term_taxonomy_id":2204,"taxonomy":"post_tag","description":"","parent":0,"count":38,"filter":"raw"},{"term_id":2173,"name":"Electric ball valve","slug":"electric-ball-valve","term_group":0,"term_taxonomy_id":2173,"taxonomy":"post_tag","description":"","parent":0,"count":11,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1927,"label":"Ball Valve"}],"post_tag":[{"value":805,"label":"Ammonia Valve"},{"value":2204,"label":"Ball Valves"},{"value":2173,"label":"Electric ball valve"}]},"yoast_head":"\n
Maintenance Method and Main Characteristics of Electric Ball 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\/maintenance-method-and-main-characteristics-of-electric-ball-valve.html\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Maintenance Method and Main Characteristics of Electric Ball Valve - ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"Electric ball valve is an important actuator in industrial automation control system. It rotates around the valve stem in line with the ... Lire plus\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/fr\/maintenance-method-and-main-characteristics-of-electric-ball-valve.html\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\n<meta property=\"article:published_time\" content=\"2022-06-22T15:29:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-11-29T01:23:39+00:00\" \/>\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=\"2 minutes\">\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\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/maintenance-method-and-main-characteristics-of-electric-ball-valve.html#webpage\",\"url\":\"https:\/\/zecovalve.com\/maintenance-method-and-main-characteristics-of-electric-ball-valve.html\",\"name\":\"Maintenance Method and Main Characteristics of Electric Ball Valve - ZECO Valve\",\"isPartOf\":{\"@id\":\"https:\/\/zecovalve.com\/#website\"},\"datePublished\":\"2022-06-22T15:29:35+00:00\",\"dateModified\":\"2022-11-29T01:23:39+00:00\",\"author\":{\"@id\":\"https:\/\/zecovalve.com\/#\/schema\/person\/f65555145e0ef282ff87649309aba6a3\"},\"breadcrumb\":{\"@id\":\"https:\/\/zecovalve.com\/maintenance-method-and-main-characteristics-of-electric-ball-valve.html#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zecovalve.com\/maintenance-method-and-main-characteristics-of-electric-ball-valve.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zecovalve.com\/maintenance-method-and-main-characteristics-of-electric-ball-valve.html#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\/maintenance-method-and-main-characteristics-of-electric-ball-valve.html\",\"url\":\"https:\/\/zecovalve.com\/maintenance-method-and-main-characteristics-of-electric-ball-valve.html\",\"name\":\"Maintenance Method and Main Characteristics of Electric Ball Valve\"}}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/zecovalve.com\/#\/schema\/person\/f65555145e0ef282ff87649309aba6a3\",\"name\":\"Jerry\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","_links":{"self":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/posts\/16699","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/comments?post=16699"}],"version-history":[{"count":0,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/posts\/16699\/revisions"}],"wp:attachment":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/media?parent=16699"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/categories?post=16699"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/tags?post=16699"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}