{"id":16112,"date":"2022-06-19T03:57:44","date_gmt":"2022-06-19T03:57:44","guid":{"rendered":"https:\/\/zecovalve.com\/?post_type=product&#038;p=16112"},"modified":"2023-06-15T12:44:16","modified_gmt":"2023-06-15T12:44:16","slug":"cryogenic-gate-valve","status":"publish","type":"product","link":"https:\/\/zecovalve.com\/pt\/produto\/cryogenic-gate-valve","title":{"rendered":"V\u00e1lvula de gaveta criog\u00e9nica"},"content":{"rendered":"<p>As v\u00e1lvulas gaveta criog\u00e9nicas est\u00e3o adaptadas a condi\u00e7\u00f5es especiais de servi\u00e7o, sendo concebidas para funcionar eficazmente a temperaturas inferiores a -40\u00baC, utilizadas principalmente em sistemas de liquefa\u00e7\u00e3o de gases.<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image alignnone size-medium wp-image-16113\">\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-27885 size-medium\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/Cryogenic-Gate-Valve-1-300x225.jpg\" alt=\"V\u00e1lvula de gaveta criog\u00e9nica\" width=\"300\" height=\"225\" srcset=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/Cryogenic-Gate-Valve-1-300x225.jpg 300w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/Cryogenic-Gate-Valve-1-768x576.jpg 768w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/Cryogenic-Gate-Valve-1-600x450.jpg 600w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/Cryogenic-Gate-Valve-1.jpg 800w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\r\n<\/figure>\r\n\r\n\r\n<div class=\"gb-button-wrapper gb-button-wrapper-6d8495a3\">\r\n\r\n\r\n<p><a class=\"gb-button gb-button-3d442e11 gb-button-text\" href=\"https:\/\/zecovalve.com\/pt\/contact\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>OBTER PRE\u00c7O DA V\u00c1LVULA CRIOG\u00caNICA<\/strong><\/a><\/p>\r\n<\/div>\r\n\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">O que \u00e9 uma v\u00e1lvula criog\u00eanica\uff1f<\/h2>\r\n\r\n\r\n\r\n<p>Os sistemas de tubula\u00e7\u00f5es e dutos que manuseiam hidrog\u00eanio l\u00edquido, oxig\u00eanio, h\u00e9lio, nitrog\u00eanio, g\u00e1s natural liquefeito ou fluidos muito frios semelhantes exigem o uso de v\u00e1lvulas criog\u00eanicas. O termo criogenia trata dos materiais e processos abaixo de -1010C (-2390F). Conseq\u00fcentemente, as v\u00e1lvulas criog\u00eanicas devem ser projetadas com propriedades para lidar com temperaturas t\u00e3o baixas. A principal diferen\u00e7a entre as v\u00e1lvulas criog\u00eanicas e as v\u00e1lvulas padr\u00e3o \u00e9 que elas s\u00e3o capazes de trabalhar em temperaturas t\u00e3o baixas com altas press\u00f5es.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">Por que as v\u00e1lvulas criog\u00eanicas t\u00eam hastes longas?<\/h2>\r\n\r\n\r\n\r\n<p>Todas as v\u00e1lvulas criog\u00eanicas para aplica\u00e7\u00f5es de g\u00e1s natural l\u00edquido, metano, oxig\u00eanio, am\u00f4nia, etc. s\u00e3o especialmente projetadas. As v\u00e1lvulas criog\u00eanicas geralmente possuem tampas estendidas para que as veda\u00e7\u00f5es da haste da v\u00e1lvula sejam mantidas longe da fonte de frio. Isso servir\u00e1 a dois prop\u00f3sitos importantes:<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>As veda\u00e7\u00f5es da haste da v\u00e1lvula ter\u00e3o uma temperatura relativamente mais alta.<\/li>\r\n<li>Haver\u00e1 espa\u00e7o suficiente para fornecer isolamento entre a tubula\u00e7\u00e3o e a alavanca\/volante que opera a v\u00e1lvula.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">Materiais de v\u00e1lvulas criog\u00eanicas<\/h2>\r\n\r\n\r\n\r\n<p>Os materiais usuais usados para construir uma v\u00e1lvula criog\u00eanica s\u00e3o alum\u00ednio, monel, lat\u00e3o, bronze, a\u00e7o inoxid\u00e1vel, Incoly, zirc\u00f4nio, etc. PTFE ou grafite s\u00e3o normalmente usados como material de veda\u00e7\u00e3o.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\" id=\"h-what-is-a-cryogenic-gate-valve\">O que \u00e9 uma v\u00e1lvula de gaveta criog\u00eanica?<\/h2>\r\n\r\n\r\n\r\n<p>Com as v\u00e1lvulas gaveta criog\u00eanicas ZECO, a vaz\u00e3o \u00e9 tr\u00eas a cinco vezes maior do que com v\u00e1lvulas globo de tamanho compar\u00e1vel. Isto acelera o enchimento de tanques e reboques e economiza um tempo valioso para a entrega de gases liquefeitos criog\u00eanicos.<\/p>\r\n\r\n\r\n\r\n<p>As v\u00e1lvulas gaveta criog\u00eanicas est\u00e3o dispon\u00edveis em tamanhos de 1\u2033 a 24\u2033 e garantem press\u00f5es de at\u00e9 1500LB, em temperaturas de opera\u00e7\u00e3o de -196\u00b0C a +120\u00b0C. As v\u00e1lvulas gaveta s\u00e3o fabricadas em a\u00e7o inoxid\u00e1vel.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\" id=\"h-features-of-cryogenic-gate-valve\">Caracter\u00edsticas da v\u00e1lvula de gaveta criog\u00eanica:<\/h2>\r\n\r\n\r\n\r\n<p>Todas as caracter\u00edsticas b\u00e1sicas do projeto das v\u00e1lvulas gaveta de a\u00e7o fundido ZECO s\u00e3o adaptadas \u00e0s condi\u00e7\u00f5es especiais de servi\u00e7o em temperaturas criog\u00eanicas.<\/p>\r\n\r\n\r\n\r\n<p>RECURSOS ADICIONAIS DE PROJETO:<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>Castelos estendidos com comprimento de coluna de g\u00e1s suficiente, geralmente especificados pelo cliente, s\u00e3o fornecidos para todas as v\u00e1lvulas para manter a gaxeta da haste a uma dist\u00e2ncia suficiente do fluido frio para permanecerem funcionais.<\/li>\r\n<li>Cunhas flex\u00edveis com faces de assentamento em liga de CoCr para servi\u00e7o criog\u00eanico.<\/li>\r\n<li>Limpeza: Todas as v\u00e1lvulas criog\u00eanicas s\u00e3o completamente desengraxadas e limpas e as extremidades dos tubos s\u00e3o vedadas para evitar contamina\u00e7\u00e3o.<\/li>\r\n<li>Embalagem de baixa emiss\u00e3o<\/li>\r\n<li>Orif\u00edcio de sangria entre a montante e o banco traseiro para evitar o aumento de press\u00e3o da cavidade corporal.<\/li>\r\n<li>Evitar estrutura inst\u00e1vel da haste<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\" id=\"h-material-of-cryogenic-gate-valve\">Material da v\u00e1lvula de gaveta criog\u00eanica:<\/h2>\r\n\r\n\r\n\r\n<figure class=\"wp-block-table is-style-stripes\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td>N\u00e3o<\/td>\r\n<td>Parte<\/td>\r\n<td>Material<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1<\/td>\r\n<td>Corpo<\/td>\r\n<td>ASTM A350LF3<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>2<\/td>\r\n<td>Anel de assento<\/td>\r\n<td>ASTM A276 410+STL<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>3<\/td>\r\n<td>Cunha<\/td>\r\n<td>ASTM A350 LF3+STL<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4<\/td>\r\n<td>Caule<\/td>\r\n<td>ASTM A182 F6<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>5<\/td>\r\n<td>Junta da tampa do compartimento<\/td>\r\n<td>Grafite + SS316<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>6<\/td>\r\n<td>Parafuso do castelo<\/td>\r\n<td>ASTM A193 B16<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>7<\/td>\r\n<td>Porca do castelo<\/td>\r\n<td>ASTM A1944<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>8<\/td>\r\n<td>Bon\u00e9<\/td>\r\n<td>ASTM A350LF3<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>9<\/td>\r\n<td>Banco traseiro<\/td>\r\n<td>ASTM A182 410<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>10<\/td>\r\n<td>Enchimento da haste<\/td>\r\n<td>Grafite refor\u00e7ada<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>11<\/td>\r\n<td>Volante<\/td>\r\n<td>KTH330-08<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>","protected":false},"excerpt":{"rendered":"<p>As v\u00e1lvulas gaveta criog\u00eanicas s\u00e3o adaptadas a condi\u00e7\u00f5es especiais de servi\u00e7o, sendo projetadas para operar efetivamente em temperaturas abaixo de -40\u00baC, utilizadas principalmente em \u2026 <a title=\"V\u00e1lvula de gaveta criog\u00e9nica\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/pt\/produto\/cryogenic-gate-valve\" aria-label=\"Mais em V\u00e1lvula de gaveta criog\u00eanica\">Ler mais<\/a><\/p>","protected":false},"featured_media":27885,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":""},"product_cat":[2052,2454],"product_tag":[2798],"class_list":["post-16112","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-gate-valve","product_cat-gate-valve-by-material","product_tag-osy-valve","sales-flash-overlay","woocommerce-text-align-center","woocommerce-image-align-center","do-quantity-buttons"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/Cryogenic-Gate-Valve-1.jpg",800,600,false],"author_info":[],"comment_info":0,"taxonomy_info":{"product_cat":[{"value":2052,"label":"Gate Valve"},{"value":2454,"label":"Gate Valve By Material"}],"product_tag":[{"value":2798,"label":"OS&amp;Y Valve"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cryogenic Gate Valve - Cryogenic Valve Manufacturer | 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\/pt\/produto\/cryogenic-gate-valve\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cryogenic Gate Valve - Cryogenic Valve Manufacturer | ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"Cryogenic gate valves are adapted to special conditions of service, being designed to operate effectively at temperatures below -40\u00baC, mainly used in ... 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