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The PED (Pressure Equipment Device) Regulation – The Essentials

In the context of constraints weighing on Pressure Equipment Devices intended for process cooling (or the production of chilled water), the current regulation is essentially based on the following 3 texts:


  • EU Directive 2014/68 of 15/05/2014 on the harmonisation of the laws of Member States concerning making Pressure Equipment Devices available on the market (reform).
  • Cahier Technique Professionnel (CTP) for the in-service monitoring of refrigeration systems under pressure, 7/07/2014.
  • BSEI Decision No.14-078 of 7/07/2014 relating to the recognition of a CTP for the in-service monitoring of refrigeration systems under pressure.

Pressure Equipment Devices are classified by category (I, II, III or IV) according to the increasing hazard level. Equipment with classified sub-equipment automatically takes the category of the sub-equipment with the highest hazard level.

The manufacturer affixes a CE marking to each Pressure Equipment Device and draws up an EU declaration of conformity which specifies the Pressure Equipment Device model for which it has been established. This declaration attests to compliance with the essential safety requirements set out in Annex I of EU Directive 2014/68.

To summarise a somewhat complex approach [based on the quantity and hazardousness of the fluid x PS value (maximum pressure of the equipment)], let’s say that process cooling units with the HFC fluid type R407C generally fit into category II. Thermoconvectors or dry coolers are not affected by the PED regulations.

It is the responsibility of the holder/ owner to have subsequent inspections carried out by a qualified person. These inspections are the subject of verification reports, kept by the holder in the operation of Pressure Equipment Devices file, during its entire life cycle.


The authorised installer will perform a mandatory initial inspection when the equipment is first put into operation. For category II Pressure Equipment Devices, this service includes documentation verification and visual verification, in particular of safety devices, in addition to checking the system for leakages.


Once a year, all category II Pressure Equipment Devices are inspected by an authorised operator. This service focuses on the visual verification of the assembly in order to evaluate the absence of shocks, traces of corrosion, moisture, seepage etc., as well as visual verification of the fouling state of the exchangers and declared safety accessories.


According to the unique CTP of 7/07/2014, it is the holder’s responsibility to have the equipment requalified by a notified body after 10 years (5 years for category I devices). This requalification must include calibration of the valves.


An often neglected aspect of the PED regulation concerns retrofits.

In case of retrofit of a Pressure Equipment Device, it is obligatory for the holder to have an EU declaration of conformity made by an APAVE organisation. This action, which is the holder’s responsibility, represents a high cost, which makes the retrofit operation much less attractive.

If the retrofitted equipment does not meet EU standards, this will be sanctioned and leads to a lack of systematic insurance in all cases.