{"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\/pt\/blog\/nominal-pressure-vs-working-pressure\/","title":{"rendered":"Press\u00e3o nominal vs. press\u00e3o de trabalho<\/strong>"},"content":{"rendered":"

Press\u00e3o de trabalho<\/strong><\/h2>\n\n\n\n

A press\u00e3o de trabalho \u00e9 a quantidade de for\u00e7a aplicada \u00e0s paredes internas. Ela \u00e9 aplicada pelas paredes internas do vaso de press\u00e3o, que est\u00e1 sob condi\u00e7\u00f5es normais de opera\u00e7\u00e3o. Ter a press\u00e3o correta em sua press\u00e3o de trabalho significa que ela est\u00e1 experimentando a for\u00e7a de press\u00e3o para a qual foi projetada para operar.<\/p>\n\n\n\n

O m\u00e9todo de trabalho pode ser visto pela variedade de m\u00e9todos:<\/p>\n\n\n\n

\u00b7 Uma equipe de engenharia que realiza diversos tipos de an\u00e1lises computacionais<\/p>\n\n\n\n

\u00b7 Realiza testes destrutivos<\/p>\n\n\n\n

\u00b7 Utilizando uma calculadora baseada nos padr\u00f5es da ind\u00fastria. O American Petroleum Institute \u00e9 uma organiza\u00e7\u00e3o conhecida. Ela ajuda a definir qual deve ser a press\u00e3o de trabalho da vaso de press\u00e3o.<\/p>\n\n\n\n

Press\u00e3o nominal<\/strong><\/h2>\n\n\n\n

A press\u00e3o nominal \u00e9 indicada pelo s\u00edmbolo PN e permite a press\u00e3o m\u00e1xima de opera\u00e7\u00e3o na temperatura especificada. Para o corpo de v\u00e1lvula em a\u00e7o carbono, a press\u00e3o de trabalho permitida para a aplica\u00e7\u00e3o \u00e9 inferior a 200. PN tamb\u00e9m \u00e9 conhecido como press\u00e3o nominal e \u00e9 usado como prefixo para as classes de press\u00e3o das flanges. A press\u00e3o nominal da v\u00e1lvula refere-se, na verdade, ao projeto e \u00e0 press\u00e3o de trabalho da v\u00e1lvula, e este n\u00edvel de press\u00e3o \u00e9 classificado de acordo com as normas.<\/p>\n\n\n\n

Press\u00e3o nominal vs. press\u00e3o de trabalho<\/strong><\/h2>\n\n\n\n

1. Press\u00e3o nominal \u00e9 a capacidade de suporte de press\u00e3o do produto. \u00c9 a uma temperatura de refer\u00eancia expressa em PN, cuja unidade \u00e9 MPa. A press\u00e3o de trabalho da v\u00e1lvula globo \u00e9 a press\u00e3o real do usu\u00e1rio. Ela est\u00e1 dentro do ambiente de aplica\u00e7\u00e3o e deve ser menor que a press\u00e3o nominal da v\u00e1lvula globo.<\/p>\n\n\n\n

2. A press\u00e3o nominal de diferentes materiais possui muitas temperaturas de refer\u00eancia, como a temperatura de refer\u00eancia do a\u00e7o, que \u00e9 250 graus Celsius. Na press\u00e3o de trabalho, a temperatura m\u00e1xima \u00e9 de 300 graus Celsius. A press\u00e3o de trabalho \u00e9 de 10 MPa e \u00e9 registrada como P 30 10 Mpa.<\/p>\n\n\n\n

3. A press\u00e3o nominal \u00e9 registrada como 1.0 MPa como PN 1.0 MPa. A press\u00e3o de trabalho \u00e9 de 10 MPa e \u00e9 registrada como P 30 10 Mpa.<\/p>\n\n\n\n

Entendendo a press\u00e3o nominal e de trabalho de v\u00e1lvulas<\/strong><\/h2>\n\n\n\n

Press\u00e3o nominal da v\u00e1lvula significa o s\u00edmbolo PN. \u00c9 a press\u00e3o m\u00e1xima de trabalho permitida quando aplicada a uma certa press\u00e3o. Para v\u00e1lvulas do tipo controle, elas s\u00e3o misturadas com o corpo de carbono. Refere-se \u00e0 press\u00e3o de trabalho m\u00e1xima permitida para aplica\u00e7\u00f5es abaixo de 120 graus Celsius. Para o corpo de v\u00e1lvula de ferro fundido, refere-se \u00e0 press\u00e3o de trabalho m\u00e1xima. A press\u00e3o nominal das v\u00e1lvulas de controle \u00e9 determinada n\u00e3o apenas pela press\u00e3o m\u00e1xima de trabalho, mas tamb\u00e9m pela temperatura m\u00e1xima de trabalho e pelos materiais. Essas press\u00f5es nominais n\u00e3o s\u00e3o apenas para satisfazer a press\u00e3o nominal, mas tamb\u00e9m a press\u00e3o de trabalho.<\/p>\n\n\n\n

 Conclus\u00e3o<\/strong><\/h2>\n\n\n\n

Working pressure is referred to the maximum pressure that is specified by the max operating temperature. It is with the pipeline at each level for the safe operations of the pipeline system. Working pressure is expressed with the Pt. The nominal pressure is the compressive strength of the product at the reference temperature. It is expressed in the PN unit as MPa. It is referred to as the design pressure that is given by the mechanical strength of piping components.<\/p>","protected":false},"excerpt":{"rendered":"

Working pressure The working pressure is the amount of force applied to the internal walls. It […]<\/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\/pt\/wp-json\/wp\/v2\/posts\/10738","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/raymonvalve.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/raymonvalve.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/raymonvalve.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/raymonvalve.com\/pt\/wp-json\/wp\/v2\/comments?post=10738"}],"version-history":[{"count":1,"href":"https:\/\/raymonvalve.com\/pt\/wp-json\/wp\/v2\/posts\/10738\/revisions"}],"predecessor-version":[{"id":10739,"href":"https:\/\/raymonvalve.com\/pt\/wp-json\/wp\/v2\/posts\/10738\/revisions\/10739"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/raymonvalve.com\/pt\/wp-json\/wp\/v2\/media\/7572"}],"wp:attachment":[{"href":"https:\/\/raymonvalve.com\/pt\/wp-json\/wp\/v2\/media?parent=10738"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/raymonvalve.com\/pt\/wp-json\/wp\/v2\/categories?post=10738"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/raymonvalve.com\/pt\/wp-json\/wp\/v2\/tags?post=10738"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}