{"id":10738,"date":"2022-11-29T08:40:43","date_gmt":"2022-11-29T00:40:43","guid":{"rendered":"https:\/\/limegreen-okapi-448594.hostingersite.com\/?p=10738"},"modified":"2022-11-29T08:40:47","modified_gmt":"2022-11-29T00:40:47","slug":"nominal-pressure-vs-working-pressure","status":"publish","type":"post","link":"https:\/\/raymonvalve.com\/fr\/blog\/nominal-pressure-vs-working-pressure\/","title":{"rendered":"<strong>Pression nominale vs. pression de service<\/strong>"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>Pression de service<\/strong><\/h2>\n\n\n\n<p>La pression de service est la quantit\u00e9 de force appliqu\u00e9e aux parois internes. Elle est appliqu\u00e9e par les parois internes de la cuve sous pression. Ceci dans les conditions normales de fonctionnement. Avoir la bonne pression \u00e0 sa pression de service signifie qu'elle subit la force de pression pour laquelle elle a \u00e9t\u00e9 con\u00e7ue.<\/p>\n\n\n\n<p>La m\u00e9thode de fonctionnement peut \u00eatre observ\u00e9e par la vari\u00e9t\u00e9 des m\u00e9thodes :<\/p>\n\n\n\n<p>\u00b7 Une \u00e9quipe d'ing\u00e9nierie qui effectue de nombreux types d'analyses informatiques<\/p>\n\n\n\n<p>\u00b7 \u00a0 \u00a0 \u00a0 \u00a0 Il effectue des tests destructifs<\/p>\n\n\n\n<p>\u00b7 \u00a0 \u00a0 \u00a0 \u00a0 En utilisant un calculateur conforme aux normes industrielles. L'American Petroleum Institute est une organisation reconnue. Elle aide \u00e0 d\u00e9finir la pression de service d'une cuve sous pression.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Pression nominale<\/strong><\/h2>\n\n\n\n<p>La pression nominale est repr\u00e9sent\u00e9e par le symbole PN et indique la pression de service maximale \u00e0 une temp\u00e9rature donn\u00e9e. Pour un corps de vanne en acier au carbone, la pression de service autoris\u00e9e pour l'application est inf\u00e9rieure \u00e0 200. La PN, \u00e9galement appel\u00e9e pression nominale, est utilis\u00e9e comme pr\u00e9fixe pour les classes de pression des brides. La pression nominale de la vanne fait r\u00e9f\u00e9rence \u00e0 la pression de conception et de service de la vanne, et ce niveau de pression est classifi\u00e9 selon les normes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Pression nominale vs. pression de service<\/strong><\/h2>\n\n\n\n<p>1. \u00a0 La pression nominale est la capacit\u00e9 de charge du produit. Elle est exprim\u00e9e en PN \u00e0 une temp\u00e9rature de r\u00e9f\u00e9rence, dont l'unit\u00e9 est le MPa. La pression de service de la vanne \u00e0 soupape est la pression r\u00e9elle utilis\u00e9e par l'utilisateur. Elle se situe dans l'environnement d'application et doit \u00eatre inf\u00e9rieure \u00e0 la pression nominale de la vanne \u00e0 soupape.<\/p>\n\n\n\n<p>2. \u00a0 La pression nominale pour diff\u00e9rents mat\u00e9riaux a de nombreuses temp\u00e9ratures de r\u00e9f\u00e9rence, comme la temp\u00e9rature de r\u00e9f\u00e9rence de l'acier qui est de 250 degr\u00e9s Celsius. En pression de service, la temp\u00e9rature maximale est de 300 degr\u00e9s Celsius. La pression de service est de 10 MPa et est enregistr\u00e9e comme P 30 10 Mpa.<\/p>\n\n\n\n<p>3. \u00a0 La pression nominale est enregistr\u00e9e comme 1,0 MPa sous la d\u00e9signation PN 1,0 MPa. La pression de service est de 10 MPa et est enregistr\u00e9e comme P 30 10 Mpa.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Comprendre la pression nominale et la pression de service des vannes<\/strong><\/h2>\n\n\n\n<p>La pression nominale d'une vanne correspond au symbole PN. Il s'agit de la pression maximale admissible lorsque celle-ci est appliqu\u00e9e \u00e0 une certaine temp\u00e9rature. Pour les vannes de r\u00e9gulation, elles sont associ\u00e9es au corps en carbone. Elle d\u00e9signe la pression de service maximale autoris\u00e9e pour des applications \u00e0 une temp\u00e9rature inf\u00e9rieure \u00e0 120 degr\u00e9s Celsius. Pour les corps de vannes en fonte, elle fait r\u00e9f\u00e9rence \u00e0 la pression de service maximale. La pression nominale des vannes de r\u00e9gulation est d\u00e9termin\u00e9e non seulement par la pression de service maximale, mais aussi par la temp\u00e9rature de service maximale et les mat\u00e9riaux. Ces pressions nominales ne visent pas seulement \u00e0 satisfaire la pression nominale, mais aussi la pression de service.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">&nbsp;<strong>Conclusion<\/strong><\/h2>\n\n\n\n<p>La pression de service d\u00e9signe la pression maximale sp\u00e9cifi\u00e9e par la temp\u00e9rature de fonctionnement maximale. Elle est li\u00e9e \u00e0 la tuyauterie \u00e0 chaque niveau pour le fonctionnement s\u00fbr du syst\u00e8me de tuyauterie. La pression de service est exprim\u00e9e par Pt. La pression nominale est la r\u00e9sistance \u00e0 la compression du produit \u00e0 la temp\u00e9rature de r\u00e9f\u00e9rence. Elle est exprim\u00e9e en unit\u00e9 PN comme MPa. Elle est d\u00e9sign\u00e9e comme la pression de conception donn\u00e9e par la r\u00e9sistance m\u00e9canique des composants de tuyauterie.<\/p>","protected":false},"excerpt":{"rendered":"<p>Working pressure The working pressure is the amount of force applied to the internal walls. It [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7572,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-10738","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/raymonvalve.com\/fr\/wp-json\/wp\/v2\/posts\/10738","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/raymonvalve.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/raymonvalve.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/raymonvalve.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/raymonvalve.com\/fr\/wp-json\/wp\/v2\/comments?post=10738"}],"version-history":[{"count":1,"href":"https:\/\/raymonvalve.com\/fr\/wp-json\/wp\/v2\/posts\/10738\/revisions"}],"predecessor-version":[{"id":10739,"href":"https:\/\/raymonvalve.com\/fr\/wp-json\/wp\/v2\/posts\/10738\/revisions\/10739"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/raymonvalve.com\/fr\/wp-json\/wp\/v2\/media\/7572"}],"wp:attachment":[{"href":"https:\/\/raymonvalve.com\/fr\/wp-json\/wp\/v2\/media?parent=10738"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/raymonvalve.com\/fr\/wp-json\/wp\/v2\/categories?post=10738"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/raymonvalve.com\/fr\/wp-json\/wp\/v2\/tags?post=10738"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}