{"id":42,"date":"2012-05-03T20:13:03","date_gmt":"2012-05-03T20:13:03","guid":{"rendered":"http:\/\/www.baltogar.com\/web\/?page_id=42"},"modified":"2019-11-04T11:20:58","modified_gmt":"2019-11-04T10:20:58","slug":"ventiladores-tunel","status":"publish","type":"page","link":"https:\/\/www.b3fantech.com\/en\/products\/tunnel-fans","title":{"rendered":"Tunnel Fans"},"content":{"rendered":"<p><strong>B3 FANTECH<\/strong> provides jet and axial fans for emergency ventilation in tunnels.<\/p>\n<p>The diameter of NVT jet fan propellers ranges from 500 mm to 1,600 mm with thrust ranges varying from 185 N to 2,810 N. <\/p>\n<p>EAV booster fans can reach 2,500 mm in diameter. <\/p>\n<p>B3 FANTECH emergency fans are used in the longitudinal, transverse and semi-transverse ventilation of road and railway tunnels because of their high efficiency, reliability because of their robust construction, low noise and corrosion resistance.<\/p>\n<p><strong>Construction<\/strong><\/p>\n<ul>\n<li>Approved for operation at 400 \u00b0C for 120 minutes according to the IN-12.1013 rule.<\/li>\n<li>Depending on the ventilation requirements, <strong>B3 FANTECH<\/strong> equipment can be unidirectional or fully reversible.<\/li>\n<li>The Aerodynamic design provides high efficiencies and low sound levels.<\/li>\n<li>Structures for fixing to ceilings and appropriate anchoring elements are used for the unique features of each tunnel.<\/li>\n<li>Impellers are balanced according to ISO 1940 1-1986, grade 2.5.<\/li>\n<li>Network range frequencies of 50 Hz and 60 Hz.<\/li>\n<\/ul>\n<p><\/p>","protected":false},"excerpt":{"rendered":"B3 FANTECH provides jet and axial fans for emergency ventilation in tunnels. For infrastructures, railway, metro stations, and mines ventilation. EAV booster fans can reach 2,500 mm in diameter.","protected":false},"author":2,"featured_media":154,"parent":11,"menu_order":0,"comment_status":"open","ping_status":"open","template":"page-producto.php","meta":{"footnotes":""},"class_list":["post-42","page","type-page","status-publish","has-post-thumbnail","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.b3fantech.com\/en\/products\/tunnel-fans\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.0.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"BALTOGAR | High performance industrial fans\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Tunnel Fans | BALTOGAR\" \/>\n\t\t<meta property=\"og:url\" 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20:33:45","updated":"2025-07-21 22:31:06","seo_analyzer_scan_date":null,"focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.b3fantech.com\/en\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.b3fantech.com\/en\/products\" title=\"Products\">Products<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tTunnel Fans\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/www.b3fantech.com\/en"},{"label":"Products","link":"https:\/\/www.b3fantech.com\/en\/products"},{"label":"Tunnel 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