EN 14359:2017

1.1This European Standard specifies the requirements for materials, design, manufacture, testing inspection, safety equipment configuration and documentation (including instructions for first operation), for commonly-used types of gas-loaded accumulators and pressure vessels used to provide additional gas capacity for fluid power applications (see 1.2).1.2This European Standard applies to the following types of components, defined as the pressure-containing envelope of gas-loaded accumulators:-bladder type;-diaphragm type;-piston type;-transfer type;-pressure vessels used to provide additional gas capacity.They consist of one or several parts joined together by a variety of mechanical means and by welding.1.3This European Standard applies to gas-loaded accumulators which operate with the following conditions:-subject to an internal gauge pressure greater than 0,5 bar;-working temperature not lower than -50 °C and not higher than +200 °C;-containing all liquids and gases as defined in the Pressure Equipment Directive 2014/68/EU, see Note.NOTEWhen the accumulator contains Group 1 liquids or gases, consideration relating to risks other than those required by Pressure Equipment Directive 2014/68/EU are not covered by this European Standard and must be assessed separately.