ÖNORM EN 286-1

This document applies to the design and manufacture of welded, simple unfired pressure vessels manufactured in series, with a single or multiple compartment, here-in-after referred to as vessels. It only applies to vessels that: a) include fabrication by welding, but some designs can entail the use of bolts; b) have a simple geometry enabling simple-to-use production procedures. This is achieved by either 1) a cylindrical part of circular cross section closed by outwardly dished and/or flat ends which revolve around the same axis as the cylindrical part; or 2) two outwardly dished ends revolving around the same axis. It applies to vessels which are intended to contain air or nitrogen which are not intended to be fired and which operate within the following constraints: a) subjected to an internal gauge pressure greater than 0,5 bar; b) the parts and assemblies contributing to the strength of the vessel under pressure to be made either of non-alloy quality steel or of non-alloy aluminium or non-age hardening aluminium alloys;