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Pressure equipment directive

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  Directive

Pressure equipment Directive (2014/68/EU)

  Scope

This Directive shall apply to the design, manufacture and conformity assessment of pressure equipment and assemblies with a maximum allowable pressure PS greater than 0,5 bar.

EXCLUSIONS

This Directive shall not apply to:

  • Pipelines comprising piping or a system of piping designed for the conveyance of any fluid or substance to or from an installation (onshore or offshore) starting from and including the last isolation device located within the confines of the installation, including all the annexed equipment designed specifically for pipelines; this exclusion shall not apply to standard pressure equipment such as may be found in pressure reduction stations or compression stations;
  • Networks for the supply, distribution and discharge of water and associated equipment and headraces such as penstocks, pressure tunnels, pressure shafts for hydroelectric installations and their related specific accessories;
  • Simple pressure vessels covered by Directive 2014/29/EU of the European Parliament and of the Council (1);
  • Aerosol dispensers covered by Council Directive 75/324/EEC (2);
  • Equipment intended for the functioning of vehicles defined by the following legal acts:
    • Directive 2007/46/EC of the European Parliament and of the Council (3);
    • Regulation (EU) No 167/2013 of the European Parliament and of the Council (4);
    • Regulation (EU) No 168/2013 of the European Parliament and of the Council (1);
  • Equipment classified as no higher than category I under Article 13 of this Directive and covered by one of the following Directives:
    • Directive 2006/42/EC of the European Parliament and of the Council (2);
    • Directive 2014/33/EU of the European Parliament and of the Council (3);
    • Directive 2014/35/EU of the European Parliament and of the Council (4);
    • Council Directive 93/42/EEC (5);
    • Directive 2009/142/EC of the European Parliament and of the Council (6);
    • Directive 2014/34/EU of the European Parliament and of the Council (7);
  • Equipment covered by point (b) of Article 346(1) TFEU;
  • Items specifically designed for nuclear use, failure of which may cause an emission of radioactivity;
  • Well-control equipment used in the petroleum, gas or geothermal exploration and extraction industry and in underground storage which is intended to contain and/or control well pressure; this shall comprise the wellhead (Christmas tree), the blow out preventers (BOP), the piping manifolds and all their equipment upstream;
  • Equipment comprising casings or machinery where the dimensioning, choice of material and manufacturing rules are based primarily on requirements for sufficient strength, rigidity and stability to meet the static and dynamic operational effects or other operational characteristics and for which pressure is not a significant design factor; such equipment may include:
    • Engines including turbines and internal combustion engines;
    • Steam engines, gas/steam turbines, turbo-generators, compressors, pumps and actuating devices;
  • Blast furnaces including the furnace cooling system, hot-blast recuperators, dust extractors and blast-furnace exhaust-gas scrubbers and direct reducing cupolas, including the furnace cooling, gas converters and pans for melting, re-melting, de-gassing and casting of steel, iron and non-ferrous metals;
  • Enclosures for high-voltage electrical equipment such as switchgear, control gear, transformers, and rotating machines;
  • Pressurised pipes for the containment of transmission systems, e.g. for electrical power and telephone cables;
  • Ships, rockets, aircraft and mobile off-shore units, as well as equipment specifically intended for installation on board or the propulsion thereof;
  • Pressure equipment consisting of a flexible casing, e.g. tyres, air cushions, balls used for play, inflatable craft, and other similar pressure equipment;
  • Exhaust and inlet silencers;
  • Bottles or cans for carbonated drinks for final consumption;
  • Vessels designed for the transport and distribution of drinks having a PS·V of not more than 500 bar·L and a maximum allowable pressure not exceeding 7 bar;
  • Equipment covered by Directive 2008/68/EC and Directive 2010/35/EU and equipment covered by the International Maritime Dangerous Goods Code and the Convention on International Civil Aviation;
  • Radiators and pipes in warm water heating systems;
  • Vessels designed to contain liquids with a gas pressure above the liquid of not more than 0,5 bar.

DEFINITIONS

For the purposes of this Directive, the following definitions shall apply:

  • ‘Pressure equipment’ means vessels, piping, safety accessories and pressure accessories, including, where applicable, elements attached to pressurised parts, such as flanges, nozzles, couplings, supports, lifting lugs;
  • ‘Vessel’ means a housing designed and built to contain fluids under pressure including its direct attachments up to the coupling point connecting it to other equipment; a vessel may be composed of more than one chamber;
  • ‘Piping’ means piping components intended for the transport of fluids, when connected together for integration into a pressure system; piping includes in particular a pipe or system of pipes, tubing, fittings, expansion joints, hoses, or other pressure-bearing components as appropriate; heat exchangers consisting of pipes for the purpose of cooling or heating air shall be considered as piping;
  • ‘Safety accessories’ means devices designed to protect pressure equipment against the allowable limits being exceeded, including devices for direct pressure limitation, such as safety valves, bursting disc safety devices, buckling rods, controlled safety pressure relief systems (CSPRS), and limiting devices, which either activate the means for correction or provide for shutdown or shutdown and lockout, such as pressure switches or temperature switches or fluid level switches and safety related measurement control and regulation (SRMCR) devices;
  • ‘Pressure accessories’ means devices with an operational function and having pressure-bearing housings;
  • ‘Assemblies’ means several pieces of pressure equipment assembled by a manufacturer to constitute an integrated and functional whole;
  • ‘Pressure’ means pressure relative to atmospheric pressure, i.e. gauge pressure. As a consequence, vacuum is designated by a negative value;
  • ‘Maximum allowable pressure PS’ means the maximum pressure for which the equipment is designed, as specified by the manufacturer, and defined at a location specified by him, being either the connection of protective and/or limiting devices, or the top of equipment or, if not appropriate, any point specified;
  • ‘Maximum/minimum allowable temperature TS’ means the maximum/minimum temperatures for which the equipment is designed, as specified by the manufacturer;
  • ‘Volume (V)’ means the internal volume of a chamber, including the volume of nozzles to the first connection or weld and excluding the volume of permanent internal parts;
  • ‘Nominal size (DN)’ means a numerical designation of size which is common to all components in a piping system other than components indicated by outside diameters or by thread size; it is a convenient round number for reference purposes and is only loosely related to manufacturing dimensions; the nominal size is designated by DN followed by a number;
  • ‘Fluids’ means gases, liquids and vapours in pure phase as well as mixtures thereof; fluids may contain a suspension of solids;
  • ‘Permanent joints’ means joints which cannot be disconnected except by destructive methods;

  Description

Pressure Equipment Directive (PED) 2014/68/EU (formerly 97/23/EC) of the EU sets out the standards for the design and fabrication of pressure equipment ("pressure equipment" means steam boilers, pressure vessels, piping, safety valves and other components and assemblies subject to pressure loading) generally over one litre in volume and having a maximum pressure more than 0.5 bar gauge. It also sets the administrative procedures requirements for the "conformity assessment" of pressure equipment, for the free placing on the European market without local legislative barriers. It has been mandatory throughout the EU since 30 May 2002, with 2014 revision fully effective as of 19 July 2016. This is enacted in the UK as the Pressure Equipment Regulations (PER). The set out standards and regulations regarding pressure vessels and boilers safety is also very close to the US standards defined by the American Society of Mechanical Engineers (ASME). This enables most international inspection agencies to provide both verification and certification services to assess compliance to the different pressure equipment directives.

  Harmonised standards

EN 3-8:2006 Portable fire extinguishers - Part 8: Additional requirements to EN 3-7 for the construction, resistance to pressure and mechanical tests for extinguishers with a maximum allowable pressure equal to o...
EN 3-8:2006/AC:2007 Portable fire extinguishers - Part 8: Additional requirements to EN 3-7 for the construction, resistance to pressure and mechanical tests for extinguishers with a maximum allowable pressure equal to o...
EN 19:2016 Industrial valves - Marking of metallic valves
EN 267:2009/A1:2011 Automatic forced draught burners for liquid fuels
EN 334:2005/A1:2009 Gas pressure regulators for inlet pressures up to 100 bar
EN 378-2:2016 Refrigerating systems and heat pumps - Safety and environmental requirements - Part 2: Design, construction, testing, marking and documentation
EN 676:2003/A2:2008 Automatic forced draught burners for gaseous fuels
EN 676:2003/A2:2008/AC:2008 Automatic forced draught burners for gaseous fuels
EN 764-4:2014 Pressure equipment - Part 4: Establishment of technical delivery conditions for metallic materials
EN 764-5:2014 Pressure equipment - Part 5: Inspection documentation of metallic materials and compliance with the material specification
Show all the standards...
EN 3-8:2006
Portable fire extinguishers - Part 8: Additional requirements to EN 3-7 for the construction, resist...
EN 3-8:2006/AC:2007
Portable fire extinguishers - Part 8: Additional requirements to EN 3-7 for the construction, resist...
EN 19:2016
Industrial valves - Marking of metallic valves
EN 267:2009/A1:2011
Automatic forced draught burners for liquid fuels
EN 334:2005/A1:2009
Gas pressure regulators for inlet pressures up to 100 bar
EN 378-2:2016
Refrigerating systems and heat pumps - Safety and environmental requirements - Part 2: Design, const...
EN 676:2003/A2:2008
Automatic forced draught burners for gaseous fuels
EN 676:2003/A2:2008/AC:2008
Automatic forced draught burners for gaseous fuels
EN 764-4:2014
Pressure equipment - Part 4: Establishment of technical delivery conditions for metallic materials
EN 764-5:2014
Pressure equipment - Part 5: Inspection documentation of metallic materials and compliance with the ...
Show all the standards...

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