ÖNORM EN 286-3

This document is applicable to simple unfired steel pressure vessels, referred to as “vessel” in this document, designed for air braking equipment and auxiliary pneumatic equipment for railway rolling stock (see Clause 13). It defines three types of vessel A, B and C (see Table 1) corresponding to the current practice of European railway networks. The vessels in this document are: a) made from a single shell; b) made from non-alloy steel; c) fabricated by welding; d) used at a maximum working pressure of 15 bar; e) the product of the maximum working pressure (in bar) and the volume (in litre): 50 bar litres < PV less than or equal to 10 000 bar litres; f) made of a cylindrical part of circular cross-section called the shell with two outwardly dished torispherical ends, that is two dished ends with the same axis of rotation. This document therefore does not apply to vessels with one or two flat ends or those made up of several compartments; g) calculated with a design pressure P (see 5.1.4.1.2); h) designed for a working temperature of between -40 °C and +100 °C; i) fastened to vehicles: 1) by straps for types A and B vessels, 2) by welded brackets for types B and C vessels.