Scope

The Directive applies to the design, manufacture and conformity assessment of pressure equipment and assemblies with a maximum allowable pressure greater than 0.5 bar.

Vessels, piping, safety accessories and pressure accessories are all included.

Typical examples of pressure equipment covered include:

  • shell and water tube boilers
  • heat exchangers
  • pressure vessels
  • process pipework
  • electric heaters
  • valves – isolation
  • valves – control
  • meters
  • relief valves
  • safety valves
  • bursting discs
  • buckling rods
  • controlled safety pressure relief systems
  • pressure switches
  • temperature switches
  • fluid level switches

 

The Directive (art.13) classifies a few categories for pressure equipment, based on:

  • hazard level, which is determined based on stored energy (pressure-volume product)
  • nature of the contained fluid.

 

The Directive does not apply to:

  • assembly of pressure equipment on site and under the responsibility of the user, as in the case of industrial installations;
  • equipment for military use, for use in transport;
  • equipment which presents a relatively low hazard from pressurization and which is within the scope of another CE mark directive (e.g. the Machinery Directive, Atex Directive, Low Voltage Directive, Medical Lift)
  • vessels used for the transport of fluids while under pressure (i.e. containers used for the transport of fluids by road, rail, sea and air). These are subject to another directive, the Transportable Pressure Equipment Directive (TPED);
  • simple pressure vessels, which are the subject of a separate directive;
  • aerosol dispenser;
  • several classes of equipment as set out in the article 1.2 of the PED 2014/68;
in Pressure Equipment Directive