{"id":671,"date":"2019-07-08T15:46:51","date_gmt":"2019-07-08T13:46:51","guid":{"rendered":"http:\/\/www.krapf-lex.de\/?page_id=671"},"modified":"2019-07-09T15:33:05","modified_gmt":"2019-07-09T13:33:05","slug":"protection-against-dust","status":"publish","type":"page","link":"https:\/\/www.krapf-lex.de\/en\/air-filters\/protection-against-dust\/","title":{"rendered":"Protection against dust"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column][vc_column_text]<\/p>\n<h2>Our air filters protect against dust<\/h2>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text]<span lang=\"EN-GB\">In very dry regions and especially desert zones high rates of fine sand in the intake air can cause frequent maintenance intervals of downstreamed components or also to abrupt breakdown due to contamination. That is the reason why either filter often have to be changed or downstreamed components have to be cleaned regularly to guarantee a failure-free operation. The self-cleaning sand pre-filter with sand discharge ventilator makes possible longer maintenance intervals and improves durability of the remaining components (filter, ventilator, control element) in the ventilation system.\u00a0<\/span> Krapf &amp; Lex therefore offers two possibilities:[\/vc_column_text][vc_column_text]<b>Krapf &amp; Lex multicyclone<\/b><\/p>\n<p>The durability of downstreamed fine filters gets 20-30 times higher because of the pre-filtering with the multicyclone. The multicyclones from Krapf &amp; Lex do have all the permissions necessary for railway vehicles such as the construction and production according to DIN EN 15085 or oscillation- and shock test according to DIN EN 61373. The multicyclone filter from Krapf &amp; Lex is in use in the desert of Saudi Arabia between Damman and Riad. The fresh air for train staff and passengers is prepared by a pre-filtration designed by Krapf &amp; Lex, before the air gets leaded, almost fully free of sand and dust, to the HVAC system. The durability of the fine filter installed in the HVAC systems therefore extremely increases.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_column_text]<b>Krapf &amp; Lex Sand pre-filter<\/b><\/p>\n<p>Compared to multicyclones, absorbing effectiveness is lower, but there is less pressure loss and it also needs little space. The sand pre-filter is in use in FLIRT Algeria. 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That is the reason why either filter often have to be changed or downstreamed&hellip;<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":662,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-671","page","type-page","status-publish","hentry","description-off"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Protection against dust - Krapf &amp; Lex<\/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:\/\/www.krapf-lex.de\/en\/air-filters\/protection-against-dust\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Protection against dust - Krapf &amp; Lex\" \/>\n<meta property=\"og:description\" content=\"[vc_row][vc_column][vc_column_text] Our air filters protect against dust [\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text]In very dry regions and especially desert zones high rates of fine sand in the intake air can cause frequent maintenance intervals of downstreamed components or also to abrupt breakdown due to contamination. That is the reason why either filter often have to be changed or downstreamed&hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.krapf-lex.de\/en\/air-filters\/protection-against-dust\/\" \/>\n<meta property=\"og:site_name\" content=\"Krapf &amp; Lex\" \/>\n<meta property=\"article:modified_time\" content=\"2019-07-09T13:33:05+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.krapf-lex.de\/en\/air-filters\/protection-against-dust\/\",\"url\":\"https:\/\/www.krapf-lex.de\/en\/air-filters\/protection-against-dust\/\",\"name\":\"Protection against dust - Krapf &amp; Lex\",\"isPartOf\":{\"@id\":\"https:\/\/www.krapf-lex.de\/en\/#website\"},\"datePublished\":\"2019-07-08T13:46:51+00:00\",\"dateModified\":\"2019-07-09T13:33:05+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.krapf-lex.de\/en\/air-filters\/protection-against-dust\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.krapf-lex.de\/en\/air-filters\/protection-against-dust\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.krapf-lex.de\/en\/air-filters\/protection-against-dust\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Startseite\",\"item\":\"https:\/\/www.krapf-lex.de\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Air Filters\",\"item\":\"https:\/\/www.krapf-lex.de\/en\/air-filters\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Protection against dust\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.krapf-lex.de\/en\/#website\",\"url\":\"https:\/\/www.krapf-lex.de\/en\/\",\"name\":\"Krapf &amp; Lex\",\"description\":\"Weiden i. d. 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