{"id":5248,"date":"2019-08-02T06:23:20","date_gmt":"2019-08-02T06:23:20","guid":{"rendered":"https:\/\/www.stvvalves.com\/?p=5248"},"modified":"2019-08-02T06:23:21","modified_gmt":"2019-08-02T06:23:21","slug":"correct-installation-of-the-butterfly-valve","status":"publish","type":"post","link":"https:\/\/www.stvvalves.com\/pt\/correct-installation-of-the-butterfly-valve\/","title":{"rendered":"Instala\u00e7\u00e3o correta da v\u00e1lvula borboleta"},"content":{"rendered":"<p>1, a posi\u00e7\u00e3o de instala\u00e7\u00e3o, altura, dire\u00e7\u00e3o de importa\u00e7\u00e3o e exporta\u00e7\u00e3o devem atender aos requisitos de projeto, a conex\u00e3o deve ser firme e compacta 0,2), todos os tipos de v\u00e1lvulas manuais instaladas no tubo de isolamento, as al\u00e7as n\u00e3o devem estar para baixo.<br>\n2, a v\u00e1lvula deve ser inspecionada visualmente antes da instala\u00e7\u00e3o, a placa de identifica\u00e7\u00e3o da v\u00e1lvula deve estar em conformidade com a norma nacional atual \u201cGeneral Valve Mark\u201d GB 12220. Para v\u00e1lvulas com press\u00e3o de trabalho superior a 1,0 MPa e fun\u00e7\u00e3o de corte na linha principal tubo, os testes de resist\u00eancia e desempenho estanque devem ser realizados antes da instala\u00e7\u00e3o e devem ser usados ap\u00f3s passar no teste. No teste de resist\u00eancia, a press\u00e3o de teste \u00e9 1,5 vezes a press\u00e3o nominal, a dura\u00e7\u00e3o n\u00e3o \u00e9 inferior a 5 minutos, e o inv\u00f3lucro da v\u00e1lvula e a gaxeta devem ser qualificados sem vazamentos. No teste rigoroso, a press\u00e3o de teste \u00e9 1,1 vezes a press\u00e3o nominal; a press\u00e3o de teste deve atender aos requisitos de GB 50243 durante o teste, e o vazamento da superf\u00edcie de veda\u00e7\u00e3o da v\u00e1lvula deve ser qualificado.<\/p>\n\n\n\n<p>A v\u00e1lvula borboleta tipo wafer \u00e9 um dos tipos mais comuns de v\u00e1lvulas em tubula\u00e7\u00f5es industriais. A estrutura da v\u00e1lvula borboleta tipo wafer em si \u00e9 relativamente pequena. Basta colocar a v\u00e1lvula borboleta no meio dos flanges nas duas extremidades da tubula\u00e7\u00e3o e usar os parafusos duplos para passar pelos flanges e pares da tubula\u00e7\u00e3o. V\u00e1lvulas borboleta clipadas bloqueiam o meio fluido na linha. As v\u00e1lvulas borboleta tipo wafer s\u00e3o especialmente adequadas para locais onde o espa\u00e7o \u00e9 limitado ou onde a dist\u00e2ncia entre os tubos \u00e9 curta. Quando a v\u00e1lvula borboleta est\u00e1 na posi\u00e7\u00e3o totalmente aberta, a espessura da placa borboleta \u00e9 a \u00fanica resist\u00eancia quando o meio flui atrav\u00e9s do corpo da v\u00e1lvula, portanto a queda de press\u00e3o gerada pela v\u00e1lvula \u00e9 muito baixa. Pequeno, por isso possui melhores caracter\u00edsticas de controle de fluxo.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1021\" height=\"583\" src=\"https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/1.jpg\" alt=\"\" class=\"wp-image-5249\" srcset=\"https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/1.jpg 1021w, https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/1-600x343.jpg 600w, https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/1-300x171.jpg 300w, https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/1-768x439.jpg 768w, https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/1-705x403.jpg 705w\" sizes=\"auto, (max-width: 1021px) 100vw, 1021px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"885\" height=\"361\" src=\"https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/2.jpg\" alt=\"\" class=\"wp-image-5250\" srcset=\"https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/2.jpg 885w, https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/2-600x245.jpg 600w, https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/2-300x122.jpg 300w, https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/2-768x313.jpg 768w, https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/2-705x288.jpg 705w\" sizes=\"auto, (max-width: 885px) 100vw, 885px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"902\" height=\"407\" src=\"https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/3.jpg\" alt=\"\" class=\"wp-image-5251\" srcset=\"https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/3.jpg 902w, https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/3-600x271.jpg 600w, https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/3-300x135.jpg 300w, https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/3-768x347.jpg 768w, https:\/\/www.stvvalves.com\/wp-content\/uploads\/2019\/08\/3-705x318.jpg 705w\" sizes=\"auto, (max-width: 902px) 100vw, 902px\" \/><\/figure>","protected":false},"excerpt":{"rendered":"<p>1, the installation position, height, import and export direction must meet the design requirements, the connection should be firm and compact 0.2), all kinds of manual valves installed on the insulation pipe, the handles must not be downward. 2, the valve must be visually inspected before installation, the nameplate of the valve should comply with [&hellip;]<\/p>\n","protected":false},"author":290641,"featured_media":5251,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[1222,1218,1219,1220,1221],"class_list":["post-5248","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news","tag-installation-of-a-butterfly-valve","tag-installation-of-butterfly-valve","tag-installation-of-butterfly-valve-wafer-type","tag-installation-of-lug-butterfly-valve","tag-installation-of-lug-type-butterfly-valve"],"_links":{"self":[{"href":"https:\/\/www.stvvalves.com\/pt\/wp-json\/wp\/v2\/posts\/5248","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.stvvalves.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.stvvalves.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.stvvalves.com\/pt\/wp-json\/wp\/v2\/users\/290641"}],"replies":[{"embeddable":true,"href":"https:\/\/www.stvvalves.com\/pt\/wp-json\/wp\/v2\/comments?post=5248"}],"version-history":[{"count":0,"href":"https:\/\/www.stvvalves.com\/pt\/wp-json\/wp\/v2\/posts\/5248\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.stvvalves.com\/pt\/wp-json\/wp\/v2\/media\/5251"}],"wp:attachment":[{"href":"https:\/\/www.stvvalves.com\/pt\/wp-json\/wp\/v2\/media?parent=5248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.stvvalves.com\/pt\/wp-json\/wp\/v2\/categories?post=5248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.stvvalves.com\/pt\/wp-json\/wp\/v2\/tags?post=5248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}