{"id":3167,"date":"2026-03-27T14:50:24","date_gmt":"2026-03-27T13:50:24","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?page_id=3167"},"modified":"2026-03-27T14:52:35","modified_gmt":"2026-03-27T13:52:35","slug":"blind","status":"publish","type":"page","link":"https:\/\/www.nickelcasting.com\/pt\/product-forms\/flanges\/blind\/","title":{"rendered":"Flanges cegas"},"content":{"rendered":"
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\n In\u00edcio<\/a> \n \/<\/span> \n Formul\u00e1rios de produtos<\/a>\n \/<\/span> \n Flanges<\/a>\n \/<\/span> \n Flanges cegas\n <\/div>\n\n
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Flanges cegas em liga de n\u00edquel<\/h1>\n \n

\n Quando \u00e9 necess\u00e1rio terminar de forma segura um sistema de tubagem, fechar um recipiente sob press\u00e3o ou isolar uma linha para manuten\u00e7\u00e3o cr\u00edtica, as flanges cegas (BLRF \/ BLRTJ) s\u00e3o a derradeira salvaguarda. A 28Nickel fabrica flanges cegas em liga de n\u00edquel forjado de qualidade superior, concebidas para suportar as press\u00f5es internas mais extremas e meios estagnados altamente corrosivos em ambientes de processamento qu\u00edmico, mar\u00edtimos offshore e de petr\u00f3leo e g\u00e1s.\n <\/p>\n <\/div>\n\n

Graus de liga dispon\u00edveis para flanges cegas<\/h2>\n

\n Como as flanges cegas n\u00e3o t\u00eam um furo central, absorvem a maior tens\u00e3o de flex\u00e3o de qualquer tipo de flange. Para al\u00e9m disso, as linhas sem sa\u00edda acumulam frequentemente fluidos estagnados e corrosivos. A sele\u00e7\u00e3o de uma superliga de alta resist\u00eancia e resistente \u00e0 corros\u00e3o - como a Hastelloy C-276<\/a> ou Inconel 718 - \u00e9 fundamental para evitar uma falha catastr\u00f3fica.\n <\/p>\n \n

\n

Selecione um grau para ver as especifica\u00e7\u00f5es do material:<\/h3>\n
\n Inconel\u00ae 625 (excelente resist\u00eancia \u00e0 corros\u00e3o)<\/a>\n Inconel\u00ae 718 (Alta resist\u00eancia ao escoamento\/press\u00e3o)<\/a>\n \n Monel\u00ae 400 (\u00e1cido HF e \u00e1gua do mar)<\/a>\n Monel\u00ae K-500 (marinho\/g\u00e1s \u00e1cido)<\/a>\n \n Hastelloy\u00ae C-276 (Processamento Qu\u00edmico Severo)<\/a>\n Waspaloy\u00ae (escapes de alta temperatura extrema)<\/a>\n <\/div>\n <\/div>\n\n

Carater\u00edsticas e varia\u00e7\u00f5es de engenharia<\/h2>\n

\n Para al\u00e9m das flanges de obtura\u00e7\u00e3o s\u00f3lidas padr\u00e3o, fornecemos configura\u00e7\u00f5es cegas especializadas adaptadas para testes de condutas, instrumenta\u00e7\u00e3o e manuten\u00e7\u00e3o de rotina.\n <\/p>\n \n

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\ud83d\uded1<\/div>\n

Flanges cegas padr\u00e3o<\/h3>\n <\/div>\n

Discos s\u00f3lidos forjados utilizados para vedar as extremidades de sistemas de tubagem ou aberturas de recipientes sob press\u00e3o. S\u00e3o aparafusados contra uma flange correspondente (normalmente um pesco\u00e7o de soldadura ou de encaixe) para criar uma veda\u00e7\u00e3o altamente segura e estanque \u00e0 press\u00e3o.<\/p>\n <\/div>\n\n

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\ud83d\udc53<\/div>\n

Estores de \u00f3culos (Figura 8)<\/h3>\n <\/div>\n

Dispositivo de seguran\u00e7a especializado, constitu\u00eddo por uma placa s\u00f3lida (para fechar a linha) e uma placa circular (para permitir o fluxo) ligadas por uma rede. Utilizado em sistemas que requerem um isolamento frequente e absoluto para manuten\u00e7\u00e3o.<\/p>\n <\/div>\n\n

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\ud83d\udeb0<\/div>\n

Flanges cegas roscadas<\/h3>\n <\/div>\n

Flanges cegas standard que foram maquinadas com precis\u00e3o por CNC com um orif\u00edcio central roscado (NPT). S\u00e3o essenciais para a instala\u00e7\u00e3o de man\u00f3metros de press\u00e3o, v\u00e1lvulas de purga ou linhas de drenagem no final de uma tubagem.<\/p>\n <\/div>\n\n

\n
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\u2699\ufe0f<\/div>\n

Resist\u00eancia a press\u00f5es extremas<\/h3>\n <\/div>\n

Devido \u00e0 falta de uma abertura central, as flanges cegas s\u00e3o estruturalmente o tipo de flange mais forte. Quando forjadas a partir de ligas de alto rendimento como Inconel 718<\/a>, A sua capacidade de carga \u00e9 muito reduzida, podendo gerir facilmente testes de press\u00e3o hidrost\u00e1tica severos e servi\u00e7o cont\u00ednuo de alta press\u00e3o.<\/p>\n <\/div>\n\n <\/div>\n\n

Especifica\u00e7\u00f5es e dimens\u00f5es padr\u00e3o<\/div>\n
\n \n \n \n \n \n \n \n \n \n
Categoria de especifica\u00e7\u00e3o<\/th>\n Detalhes e normas<\/th>\n <\/tr>\n <\/thead>\n
Normas dimensionais<\/strong><\/td>\n ASME \/ ANSI B16.5 (at\u00e9 24\"), ASME B16.47 S\u00e9rie A & B (di\u00e2metro grande > 24\")<\/td>\n <\/tr>\n
Classes de press\u00e3o<\/strong><\/td>\n 150#, 300#, 600#, 900#, 1500#, 2500# (Personalizado<\/a> espessuras de alta press\u00e3o dispon\u00edveis)<\/td>\n <\/tr>\n
Tamanho do furo<\/strong><\/td>\n Nenhum (disco s\u00f3lido). *A menos que seja especificado como uma flange cega roscada com rosca NPT.<\/td>\n <\/tr>\n
Face da flange<\/strong><\/td>\n Face elevada (BLRF), face plana (BLFF), junta tipo anel (BLRTJ) para veda\u00e7\u00e3o m\u00e1xima.<\/td>\n <\/tr>\n
Processo de fabrico<\/strong><\/td>\n Forjado a quente e maquinado com precis\u00e3o por CNC. Nunca fundido.<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n
\n

Precisa de cegar uma linha de forma segura?<\/h3>\n

Ao solicitar um or\u00e7amento, especifique o tipo de liga (por exemplo, Hastelloy C-276), o tamanho nominal do tubo (NPS), a classe de press\u00e3o (por exemplo, 900#) e a face do flange (por exemplo, RTJ). Se precisar de um cego roscado, forne\u00e7a o tamanho de rosca NPT necess\u00e1rio.<\/p>\n Obter uma cota\u00e7\u00e3o de flange cega<\/a>\n <\/div>\n\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Home \/ Product Forms \/ Flanges \/ Blind Flanges Nickel Alloy Blind Flanges When you need to securely terminate a piping system, blank off a pressure vessel, or isolate a line for critical maintenance, Blind Flanges (BLRF \/ BLRTJ) are the ultimate safeguard. 28Nickel manufactures premium forged nickel alloy blind flanges engineered to withstand the […]<\/p>","protected":false},"author":1,"featured_media":0,"parent":3145,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"unboxed","site-sidebar-style":"unboxed","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":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","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":""},"class_list":["post-3167","page","type-page","status-publish","hentry"],"spectra_custom_meta":{"_edit_lock":["1774619451:1"],"_edit_last":["1"],"_elementor_edit_mode":["builder"],"_astra_content_layout_flag":["disabled"],"ast-title-bar-display":["disabled"],"ast-featured-img":["disabled"],"site-content-layout":["page-builder"],"ast-site-content-layout":["full-width-container"],"site-sidebar-layout":["no-sidebar"],"_elementor_template_type":["wp-page"],"_elementor_version":["3.33.2"],"_elementor_pro_version":["3.32.3"],"rank_math_seo_score":["70"],"rank_math_internal_links_processed":["1"],"_wp_page_template":["default"],"_elementor_data":["[{\"id\":\"58f435c\",\"elType\":\"container\",\"settings\":{\"display_condition_list\":[{\"display_condition_login_status\":\"subscriber\",\"_id\":\"3a3bb3e\"}]},\"elements\":[{\"id\":\"94dc55e\",\"elType\":\"widget\",\"settings\":{\"html\":\"\\n\\n

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\\n Home<\\\/a> \\n \\\/<\\\/span> \\n Product Forms<\\\/a>\\n \\\/<\\\/span> \\n Flanges<\\\/a>\\n \\\/<\\\/span> \\n Blind Flanges\\n <\\\/div>\\n\\n
\\n

Nickel Alloy Blind Flanges<\\\/h1>\\n \\n

\\n When you need to securely terminate a piping system, blank off a pressure vessel, or isolate a line for critical maintenance, Blind Flanges (BLRF \\\/ BLRTJ) are the ultimate safeguard. 28Nickel manufactures premium forged nickel alloy blind flanges engineered to withstand the most extreme internal pressures and highly corrosive stagnant media in chemical processing, offshore marine, and oil & gas environments.\\n <\\\/p>\\n <\\\/div>\\n\\n

Available Alloy Grades for Blind Flanges<\\\/h2>\\n

\\n Because blind flanges lack a center bore, they absorb the highest bending stress of any flange type. Furthermore, dead-end lines often accumulate stagnant, corrosive fluids. Selecting a high-strength, pitting-resistant superalloy\\u2014such as Hastelloy C-276 or Inconel 718\\u2014is critical to preventing catastrophic failure.\\n <\\\/p>\\n \\n

\\n

Select a Grade to View Material Specs:<\\\/h3>\\n
\\n Inconel\\u00ae 625 (Excellent Pitting Resistance)<\\\/a>\\n Inconel\\u00ae 718 (High Yield Strength\\\/Pressure)<\\\/a>\\n \\n Monel\\u00ae 400 (HF Acid & Seawater)<\\\/a>\\n Monel\\u00ae K-500 (Marine\\\/Sour Gas)<\\\/a>\\n \\n Hastelloy\\u00ae C-276 (Severe Chemical Processing)<\\\/a>\\n Waspaloy\\u00ae (Extreme High Temp Exhausts)<\\\/a>\\n <\\\/div>\\n <\\\/div>\\n\\n

Engineering Features & Variations<\\\/h2>\\n

\\n Beyond standard solid blanking flanges, we provide specialized blind configurations tailored for pipeline testing, instrumentation, and routine maintenance.\\n <\\\/p>\\n \\n

\\n \\n
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\\ud83d\\uded1<\\\/div>\\n

Standard Blind Flanges<\\\/h3>\\n <\\\/div>\\n

Solid forged disks used to seal the ends of piping systems or pressure vessel openings. They are bolted against a mating flange (typically a weld neck or slip-on) to create a highly secure, pressure-tight seal.<\\\/p>\\n <\\\/div>\\n\\n

\\n
\\n
\\ud83d\\udc53<\\\/div>\\n

Spectacle Blinds (Figure-8)<\\\/h3>\\n <\\\/div>\\n

A specialized safety device featuring a solid plate (to blind the line) and a ring plate (to allow flow) connected by a web. Used in systems requiring frequent, absolute isolation for maintenance.<\\\/p>\\n <\\\/div>\\n\\n

\\n
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\\ud83d\\udeb0<\\\/div>\\n

Tapped Blind Flanges<\\\/h3>\\n <\\\/div>\\n

Standard blind flanges that have been precision CNC-machined with a threaded center hole (NPT). These are essential for installing pressure gauges, bleed valves, or drainage lines at the end of a pipe run.<\\\/p>\\n <\\\/div>\\n\\n

\\n
\\n
\\u2699\\ufe0f<\\\/div>\\n

Extreme Pressure Resistance<\\\/h3>\\n <\\\/div>\\n

Due to the lack of a center opening, blind flanges are structurally the strongest flange type. When forged from high-yield alloys like Inconel 718, they can easily manage severe hydrostatic pressure testing and continuous high-pressure service.<\\\/p>\\n <\\\/div>\\n\\n <\\\/div>\\n\\n

Standard Specifications & Dimensions<\\\/div>\\n
\\n \\n \\n \\n \\n \\n \\n \\n \\n \\n
Specification Category<\\\/th>\\n Details & Standards<\\\/th>\\n <\\\/tr>\\n <\\\/thead>\\n
Dimensional Standards<\\\/strong><\\\/td>\\n ASME \\\/ ANSI B16.5 (Up to 24\\\"), ASME B16.47 Series A & B (Large Diameter > 24\\\")<\\\/td>\\n <\\\/tr>\\n
Pressure Classes<\\\/strong><\\\/td>\\n 150#, 300#, 600#, 900#, 1500#, 2500# (Custom high-pressure thicknesses available)<\\\/td>\\n <\\\/tr>\\n
Bore Size<\\\/strong><\\\/td>\\n None (Solid disk). *Unless specified as a Tapped Blind Flange with NPT threading.<\\\/td>\\n <\\\/tr>\\n
Flange Facing<\\\/strong><\\\/td>\\n Raised Face (BLRF), Flat Face (BLFF), Ring Type Joint (BLRTJ) for max sealing.<\\\/td>\\n <\\\/tr>\\n
Manufacturing Process<\\\/strong><\\\/td>\\n Hot Forged and Precision CNC Machined. Never cast.<\\\/td>\\n <\\\/tr>\\n <\\\/tbody>\\n <\\\/table>\\n <\\\/div>\\n\\n
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Need to Securely Blind a Line?<\\\/h3>\\n

When requesting a quote, please specify the alloy grade (e.g., Hastelloy C-276), nominal pipe size (NPS), pressure class (e.g., 900#), and flange facing (e.g., RTJ). If you need a tapped blind, please provide the required NPT thread size.<\\\/p>\\n Get a Blind Flange Quote<\\\/a>\\n <\\\/div>\\n\\n<\\\/div>\",\"display_condition_list\":[{\"display_condition_login_status\":\"subscriber\",\"_id\":\"821f165\"}]},\"elements\":[],\"widgetType\":\"html\"}],\"isInner\":false}]"],"_elementor_page_settings":["a:0:{}"],"_elementor_controls_usage":["a:2:{s:4:\"html\";a:3:{s:5:\"count\";i:1;s:15:\"control_percent\";i:0;s:8:\"controls\";a:2:{s:7:\"content\";a:1:{s:13:\"section_title\";a:1:{s:4:\"html\";i:1;}}s:8:\"advanced\";a:1:{s:26:\"display_conditions_section\";a:1:{s:22:\"display_condition_list\";i:1;}}}}s:9:\"container\";a:3:{s:5:\"count\";i:1;s:15:\"control_percent\";i:0;s:8:\"controls\";a:1:{s:8:\"advanced\";a:1:{s:26:\"display_conditions_section\";a:1:{s:22:\"display_condition_list\";i:1;}}}}}"],"rank_math_focus_keyword":["blind flanges"],"rank_math_description":["Nickel alloy blind flanges in Inconel, Monel, Hastelloy and Waspaloy for high-pressure, corrosive chemical, marine and oil gas systems."],"ilj_blacklistdefinition":["a:0:{}"],"ilj_linkdefinition":["a:1:{i:0;s:13:\"blind flanges\";}"],"site-content-style":["unboxed"],"site-sidebar-style":["unboxed"],"theme-transparent-header-meta":["default"],"astra-migrate-meta-layouts":["set"],"_uag_page_assets":["a:9:{s:3:\"css\";s:263:\".uag-blocks-common-selector{z-index:var(--z-index-desktop) !important}@media (max-width: 976px){.uag-blocks-common-selector{z-index:var(--z-index-tablet) !important}}@media (max-width: 767px){.uag-blocks-common-selector{z-index:var(--z-index-mobile) !important}}\n\";s:2:\"js\";s:0:\"\";s:18:\"current_block_list\";a:8:{i:0;s:11:\"core\/search\";i:1;s:10:\"core\/group\";i:2;s:12:\"core\/heading\";i:3;s:17:\"core\/latest-posts\";i:4;s:20:\"core\/latest-comments\";i:5;s:13:\"core\/archives\";i:6;s:15:\"core\/categories\";i:7;s:10:\"core\/image\";}s:8:\"uag_flag\";b:0;s:11:\"uag_version\";s:10:\"1779372270\";s:6:\"gfonts\";a:0:{}s:10:\"gfonts_url\";s:0:\"\";s:12:\"gfonts_files\";a:0:{}s:14:\"uag_faq_layout\";b:0;}"],"_uag_css_file_name":["uag-css-3167.css"],"_elementor_page_assets":["a:1:{s:7:\"scripts\";a:1:{i:0;s:18:\"elementor-frontend\";}}"],"_elementor_css":["a:6:{s:4:\"time\";i:1779909659;s:5:\"fonts\";a:0:{}s:5:\"icons\";a:0:{}s:20:\"dynamic_elements_ids\";a:0:{}s:6:\"status\";s:4:\"file\";i:0;s:0:\"\";}"],"_elementor_element_cache":["{\"timeout\":1779999659,\"value\":{\"content\":\"

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\\n Home<\\\/a> \\n \\\/<\\\/span> \\n Product Forms<\\\/a>\\n \\\/<\\\/span> \\n Flanges<\\\/a>\\n \\\/<\\\/span> \\n Blind Flanges\\n <\\\/div>\\n\\n
\\n

Nickel Alloy Blind Flanges<\\\/h1>\\n \\n

\\n When you need to securely terminate a piping system, blank off a pressure vessel, or isolate a line for critical maintenance, Blind Flanges (BLRF \\\/ BLRTJ) are the ultimate safeguard. 28Nickel manufactures premium forged nickel alloy blind flanges engineered to withstand the most extreme internal pressures and highly corrosive stagnant media in chemical processing, offshore marine, and oil & gas environments.\\n <\\\/p>\\n <\\\/div>\\n\\n

Available Alloy Grades for Blind Flanges<\\\/h2>\\n

\\n Because blind flanges lack a center bore, they absorb the highest bending stress of any flange type. Furthermore, dead-end lines often accumulate stagnant, corrosive fluids. Selecting a high-strength, pitting-resistant superalloy\\u2014such as Hastelloy C-276 or Inconel 718\\u2014is critical to preventing catastrophic failure.\\n <\\\/p>\\n \\n

\\n

Select a Grade to View Material Specs:<\\\/h3>\\n
\\n Inconel\\u00ae 625 (Excellent Pitting Resistance)<\\\/a>\\n Inconel\\u00ae 718 (High Yield Strength\\\/Pressure)<\\\/a>\\n \\n Monel\\u00ae 400 (HF Acid & Seawater)<\\\/a>\\n Monel\\u00ae K-500 (Marine\\\/Sour Gas)<\\\/a>\\n \\n Hastelloy\\u00ae C-276 (Severe Chemical Processing)<\\\/a>\\n Waspaloy\\u00ae (Extreme High Temp Exhausts)<\\\/a>\\n <\\\/div>\\n <\\\/div>\\n\\n

Engineering Features & Variations<\\\/h2>\\n

\\n Beyond standard solid blanking flanges, we provide specialized blind configurations tailored for pipeline testing, instrumentation, and routine maintenance.\\n <\\\/p>\\n \\n

\\n \\n
\\n
\\n
\\ud83d\\uded1<\\\/div>\\n

Standard Blind Flanges<\\\/h3>\\n <\\\/div>\\n

Solid forged disks used to seal the ends of piping systems or pressure vessel openings. They are bolted against a mating flange (typically a weld neck or slip-on) to create a highly secure, pressure-tight seal.<\\\/p>\\n <\\\/div>\\n\\n

\\n
\\n
\\ud83d\\udc53<\\\/div>\\n

Spectacle Blinds (Figure-8)<\\\/h3>\\n <\\\/div>\\n

A specialized safety device featuring a solid plate (to blind the line) and a ring plate (to allow flow) connected by a web. Used in systems requiring frequent, absolute isolation for maintenance.<\\\/p>\\n <\\\/div>\\n\\n

\\n
\\n
\\ud83d\\udeb0<\\\/div>\\n

Tapped Blind Flanges<\\\/h3>\\n <\\\/div>\\n

Standard blind flanges that have been precision CNC-machined with a threaded center hole (NPT). These are essential for installing pressure gauges, bleed valves, or drainage lines at the end of a pipe run.<\\\/p>\\n <\\\/div>\\n\\n

\\n
\\n
\\u2699\\ufe0f<\\\/div>\\n

Extreme Pressure Resistance<\\\/h3>\\n <\\\/div>\\n

Due to the lack of a center opening, blind flanges are structurally the strongest flange type. When forged from high-yield alloys like Inconel 718, they can easily manage severe hydrostatic pressure testing and continuous high-pressure service.<\\\/p>\\n <\\\/div>\\n\\n <\\\/div>\\n\\n

Standard Specifications & Dimensions<\\\/div>\\n
\\n \\n \\n \\n \\n \\n \\n \\n \\n \\n
Specification Category<\\\/th>\\n Details & Standards<\\\/th>\\n <\\\/tr>\\n <\\\/thead>\\n
Dimensional Standards<\\\/strong><\\\/td>\\n ASME \\\/ ANSI B16.5 (Up to 24\\\"), ASME B16.47 Series A & B (Large Diameter > 24\\\")<\\\/td>\\n <\\\/tr>\\n
Pressure Classes<\\\/strong><\\\/td>\\n 150#, 300#, 600#, 900#, 1500#, 2500# (Custom high-pressure thicknesses available)<\\\/td>\\n <\\\/tr>\\n
Bore Size<\\\/strong><\\\/td>\\n None (Solid disk). *Unless specified as a Tapped Blind Flange with NPT threading.<\\\/td>\\n <\\\/tr>\\n
Flange Facing<\\\/strong><\\\/td>\\n Raised Face (BLRF), Flat Face (BLFF), Ring Type Joint (BLRTJ) for max sealing.<\\\/td>\\n <\\\/tr>\\n
Manufacturing Process<\\\/strong><\\\/td>\\n Hot Forged and Precision CNC Machined. Never cast.<\\\/td>\\n <\\\/tr>\\n <\\\/tbody>\\n <\\\/table>\\n <\\\/div>\\n\\n
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Need to Securely Blind a Line?<\\\/h3>\\n

When requesting a quote, please specify the alloy grade (e.g., Hastelloy C-276), nominal pipe size (NPS), pressure class (e.g., 900#), and flange facing (e.g., RTJ). If you need a tapped blind, please provide the required NPT thread size.<\\\/p>\\n Get a Blind Flange Quote<\\\/a>\\n <\\\/div>\\n\\n<\\\/div>\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t\\t<\\\/div>\\n\\t\\t\",\"scripts\":[],\"styles\":[]}}"]},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"nickel","author_link":"https:\/\/www.nickelcasting.com\/pt\/author\/nickel\/"},"uagb_comment_info":0,"uagb_excerpt":"Home \/ Product Forms \/ Flanges \/ Blind Flanges Nickel Alloy Blind Flanges When you need to securely terminate a piping system, blank off a pressure vessel, or isolate a line for critical maintenance, Blind Flanges (BLRF \/ BLRTJ) are the ultimate safeguard. 28Nickel manufactures premium forged nickel alloy blind flanges engineered to withstand the…","_links":{"self":[{"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/pages\/3167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/comments?post=3167"}],"version-history":[{"count":4,"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/pages\/3167\/revisions"}],"predecessor-version":[{"id":3173,"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/pages\/3167\/revisions\/3173"}],"up":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/pages\/3145"}],"wp:attachment":[{"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/media?parent=3167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}