{"id":272,"date":"2026-04-16T02:13:25","date_gmt":"2026-04-16T00:13:25","guid":{"rendered":"https:\/\/gutachter-moll.de\/?p=272"},"modified":"2026-04-16T02:14:15","modified_gmt":"2026-04-16T00:14:15","slug":"kontaktkorrossion","status":"publish","type":"post","link":"https:\/\/gutachter-moll.de\/en\/kontaktkorrossion\/","title":{"rendered":"Contact corrosion"},"content":{"rendered":"<p><a href=\"\/en\/\">Back to homepage<\/a> <\/p>\n\n\n\n<p>Contact corrosion occurs when two metals with different levels of nobility come into contact. In drinking water installations, this is referred to as the flow rule. The definition of the flow rule can be found in DIN EN 806-4. This standard is a recognized rule of technology for drinking water installations in domestic use. The flow rule states that galvanized steel pipework must be installed upstream of copper pipework in the direction of water flow. In other words, in the direction of flow, galvanized steel must come first, followed by copper pipe.<\/p>","protected":false},"excerpt":{"rendered":"<p>Zur\u00fcck zur \u00dcbersicht Kontaktkorrosion tritt auf, wenn sich zwei unterschiedlich edel Metalle ber\u00fchren. Bei Trinkwasseranlagen wird hier von der Flie\u00dfregel gesprochen. Die Definition von Flie\u00dfregel findet sich in der DIN EN 806-4. Diese Norm ist eine anerkannte Regel der Techink f\u00fcr die Trinkwasserinstallation im h\u00e4uslichen Gebrauch. Die Flie\u00dfregel besagt, dass das Leitungsmaterial aus verzinktem Stahl [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":161,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-272","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-allgemein"],"_links":{"self":[{"href":"https:\/\/gutachter-moll.de\/en\/wp-json\/wp\/v2\/posts\/272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gutachter-moll.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gutachter-moll.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gutachter-moll.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gutachter-moll.de\/en\/wp-json\/wp\/v2\/comments?post=272"}],"version-history":[{"count":0,"href":"https:\/\/gutachter-moll.de\/en\/wp-json\/wp\/v2\/posts\/272\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gutachter-moll.de\/en\/wp-json\/wp\/v2\/media\/161"}],"wp:attachment":[{"href":"https:\/\/gutachter-moll.de\/en\/wp-json\/wp\/v2\/media?parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gutachter-moll.de\/en\/wp-json\/wp\/v2\/categories?post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gutachter-moll.de\/en\/wp-json\/wp\/v2\/tags?post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}