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The purpose of this document is to specify the dimensions and tolerances for orbital-welding fittings, intended for stainless steel fluid pipes to EN 3717. The committee responsible for this standard is NA 131-03-02 AA "Fluidische Systeme und Komponenten (Spiegelausschuss zu ISO/TC 20/SC 10)" ("Fluidic systems and components (mirror committee to ISO/TC 20/SC 10)") at DIN.
This document replaces DIN EN 3635:2008-12 .