{"id":24377,"date":"2023-04-20T15:07:07","date_gmt":"2023-04-20T13:07:07","guid":{"rendered":"https:\/\/nh-oring.de\/dvgw-w270-approval-o-ring-lexicon\/"},"modified":"2025-05-07T12:21:20","modified_gmt":"2025-05-07T10:21:20","slug":"dvgw-w270-approval-o-ring-lexicon","status":"publish","type":"page","link":"https:\/\/nh-oring.de\/en\/dvgw-w270-approval-o-ring-lexicon\/","title":{"rendered":"DVGW W270 approval | O-ring lexicon"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"24377\" class=\"elementor elementor-24377 elementor-20859\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e5aaf3d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e5aaf3d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-297f1d4\" data-id=\"297f1d4\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1d86d9a elementor-widget elementor-widget-heading\" data-id=\"1d86d9a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Approval DVGW W270\n\n\n\n\n\n\n<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-014e266 elementor-hidden-mobile\" data-id=\"014e266\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c01437b elementor-view-default elementor-widget elementor-widget-icon\" data-id=\"c01437b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<div class=\"elementor-icon\">\n\t\t\t<i aria-hidden=\"true\" class=\"fas fa-adjust\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-56c58f6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"56c58f6\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4564b4f\" data-id=\"4564b4f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f74909c elementor-widget elementor-widget-text-editor\" data-id=\"f74909c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The approval according to DVGW W270 refers to the growth of microbial organisms on organic materials. The focus here is primarily on materials that come into contact with drinking water. Products that are to be used in drinking water systems in Germany must be approved in accordance with DVGW W270.<\/p><p>The German Technical and Scientific Association for Gas and Water (Deutscher Verein des Gas- und Wasserfaches e.V.) is the publisher of the requirements.\u00a0<\/p><p>As with the elastomer guideline, the aim is to ensure that the system components do not have a negative impact on drinking water during the production, distribution or storage stages.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5c0573a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5c0573a\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-81600f4\" data-id=\"81600f4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-11d3539 elementor-widget elementor-widget-heading\" data-id=\"11d3539\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span style=\"background-color:#fe5050;color: #ffffff;padding: 5px\">#1<\/span> Definition DVGW W270 approval\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b13cb44 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"b13cb44\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c805602 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c805602\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d4818a7\" data-id=\"d4818a7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cb71fda elementor-widget elementor-widget-text-editor\" data-id=\"cb71fda\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tThe DVWG W270 approval confirms that a material made of organic materials in contact with drinking water complies with the maximum values for microbial growth.\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a323345 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a323345\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b674eed\" data-id=\"b674eed\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f4bb01c elementor-widget elementor-widget-heading\" data-id=\"f4bb01c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span style=\"background-color:#fe5050;color: #ffffff;padding: 5px\">#2<\/span> Significance of the approval according to DVGW W270<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bc8133f elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"bc8133f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7be41a4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7be41a4\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-95b6441\" data-id=\"95b6441\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ff54222 elementor-widget elementor-widget-text-editor\" data-id=\"ff54222\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Elastomeric sealing elements are of organic origin and therefore fall under the regulatory scope of approval for drinking water applications.&nbsp;<\/p><p>Manufacturers receive the DVGW W270 test certificate from an independent body. The award requires the disclosure of the material formulation and the passing of growth tests.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Approval DVGW W270 The approval according to DVGW W270 refers to the growth of microbial organisms on organic materials. The focus here is primarily on materials that come into contact with drinking water. Products that are to be used in drinking water systems in Germany must be approved in accordance with DVGW W270. The German &#8230; <a title=\"DVGW W270 approval | O-ring lexicon\" class=\"read-more\" href=\"https:\/\/nh-oring.de\/en\/dvgw-w270-approval-o-ring-lexicon\/\" aria-label=\"Read more about DVGW W270 approval | O-ring lexicon\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-24377","page","type-page","status-publish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>DVGW W270 approval | Simply explained | The O-ring lexicon<\/title>\n<meta name=\"description\" content=\"O-ring approval DVGW W270 simply explained \u2705 O-ring lexicon \u2705 O-ring technical terms \u2705 The O-ring supplier \u2705 Click here!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nh-oring.de\/en\/dvgw-w270-approval-o-ring-lexicon\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"DVGW W270 approval | Simply explained | The O-ring lexicon\" \/>\n<meta property=\"og:description\" content=\"O-ring approval DVGW W270 simply explained \u2705 O-ring lexicon \u2705 O-ring technical terms \u2705 The O-ring supplier \u2705 Click here!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nh-oring.de\/en\/dvgw-w270-approval-o-ring-lexicon\/\" \/>\n<meta property=\"og:site_name\" content=\"NH O-RING - 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