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PED – Conformity Assessment

Conformity assessment is the process carried out by the manufacturer of demonstrating whether specified requirements such as PED relating to a pressure equipment have been fulfilled. Conformity assessment is the responsibility of the manufacturer. Should a manufacturer subcontract design or production, he still remains responsible for the execution of conformity assessment.

Procedures of conformity assessment

The essential objective of a conformity assessment procedure is to demonstrate that pressure equipments placed on the EU market conform to the requirements expressed in the provisions of the PED legislation. A pressure equipment is subjected to conformity assessment both during the design and production phase. The PED contains a total of 13 conformity assessment procedures (modules or module combinations), except for Module A, all other modules involve a notified body (see below picture). Some conformity assessment procedures are in two steps: first EU-examination of a production type (Module B) or EU-examination of a design type (Module B), then, determination of the conformity of the manufactured products against the approved specimen.

PED Overview of conformity assessments procedures

Notes:

  • The conformity assessment procedures to be applied to an item of pressure equipment shall be determined by the category in which the equipment is classified.
  • For the conformity assessment, the manufacturer can select a module or module combination that is possible for the existing category of the pressure equipment. The possible modules or module combinations that can be selected for the respective category are equivalent.
  • In the case of pressure assemblies
    • each individual piece of pressure equipment can be subjected to an assessment procedure or
    • an overall assessment according to the highest category of installed pressure equipment
  • The modules of the higher category (greater hazard potential) include the modules of the lower category.

Conformity assessment procedures

ModuleTitel of modulesNotified Body
involved ?
Applicable for categories
H1Conformity assessment based on full quality assurance plus design examinationYesIV, III, II, I
GConformity based on unit verificationYesIV, III, II, I
Bprod + FEU-Type examination (production type) + Conformity to type based on pressure equipment verificationYesIV, III, II, I
Bprod + DEU-Type examination (production type) + Conformity based on quality assurance of production processYesIV, III, II, I
HConformity based on full quality assuranceYesIII, II, I
Bdesign + DEU-Type examination (design typ) + Conformity based on quality assurance of production processYesIII, II, I
Bdesign + FEU-Type examination (design typ) + Conformity to type based on pressure equipment verificationYesIII, II, I
Bprod + EEU-Type examination (production type) + Conformity assessment based on pressure equipment quality assuranceYesIII, II, I
Bprod + C2EU-Type examination (production type) + Conformity to type based on internal production control plus supervised pressure equipment checks at random intervalsYesIII, II, I
E1Quality assurance of final pressure equipment inspection and testingYesII, I
D1Quality assurance of the production processYesII, I
A2Internal production control plus supervised pressure equipment checks at random intervalsYesII, I
AInternal production controlNoI

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What is a notified Body?

DIRECTORY

for
Manufacturers & Suppliers
Features:
  • Link directly to your Website
  • Company type
  • Location
  • Brief description of your company
  • Products limits dia., length & weight
  • Main used mat'l groups ISO/TR 15608
  • Directory is supported by professional Engineers
1 entry for free

Simple registration in 3 steps:

  1. Registration only with name, e-mail, company name,
  2. Approval and sending login data by PED directory team
  3. The vendor sends the prepared form with the details for the vendor directory listing