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Published byEvelyn Campbell Modified over 8 years ago
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1 Pressure equipment directive 97/23/EC PED
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2 Scope of validity design manufacture conformity assessment of pressure equipment and assembly with internal pressure above 0,5 bar (0,05 MPa)
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3 Range of products pressure vessels boilers piping safety accessory (e.g. safety valve) pressure accessory (e.g. isolating valve) assemblies (e.g. fire extinguisher)
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4 Pressure vessel housing designed and built to contain fluids under pressure vessel may be composed of more than one chamber (e.g. heat exchanger)
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5 Boiler intended for generating steam, hot or warm water consists of several parts (body, evaporator, preheater, economizer etc.)
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6 Piping components intended for the transport of fluids piping includes in particular a pipe or system of pipes, tubing, fittings, expansion joints, hoses, or other pressure - bearing components as appropriate
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7 Safety accesory devices designed to protect pressure equipment against the allowable limits being exceeded (pressure, temperature, volume, flow)
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8 Pressure accesory device with an operational function and having pressure - bearing housing valve, water gauge, etc.
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9 Assembly several pieces of pressure equipment assembled by a manufacturer to constitute an integrated and functional whole they are integrated, i.e. they are connected and designed to be compatible with each other and they are functional, i.e. together, they achieve specific, overall objectives and could be put into operation, and they form a whole, i.e. all the items which are necessary for the assembly to function and be safe are present and they are assembled by one manufacturer who intends the resulting assembly to be placed on the market and who will subject the assembly to a global conformity assessment procedure
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11 Definitions PS – maximum allowable pressure (gauge pressure) PT – test pressure TS – temperature (min./max.) fluid
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12 Restrictions risk of pressure (only) pressure above 0,5 bar (other devices are not covered) first putting into service first placing on the market no service and in - service inspections (national legislation)
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13 Exclusions pressure equipment covered by another directives and agreements (ADR, RID) equipment for nuclear use bottles for carbonated drinks casings of turbines and motors pipelines radiators for warm water
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14 gases, liquids and vapours in pure phase as well as mixtures thereof fluid may contain a suspension of solids group 1 – dangerous – explosive, extremely flammable, highly flammable, flammable (where the maximum allowable temperature is above flashpoint), very toxic, toxic, oxidizing group 2 – others plus water and steam European legislation for classification Fluids
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category 1 - CLP unstable explosives or explosives of Divisions 1.1, 1.2, 1.3, 1.4 and 1.5; flammable gases, category 1 and 2; oxidising gases, category 1; flammable liquids, categories 1 and 2; flammable liquids, category 3 where the maximum allowable temperature is above the flashpoint; flammable solids, category 1 and 2; 15
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self-reactive substances and mixtures, type A to F; pyrophoric liquids, category 1; pyrophoric solids, category 1; substances and mixtures which in contact with water emit flammable gases, category 1, 2 and 3; oxidising liquids, category 1, 2 and 3; oxidising solids, category 1, 2 and 3; 16
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organic peroxides types A to F; acute oral toxicity: category 1 and 2; acute dermal toxicity: category 1 and 2; acute inhalation toxicity: category 1, 2 and 3; specific target organ toxicity – single exposure: category 1. 17
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18 Category of equipment 4 categories with increasing hazard level for vessels and boilers – PS, volume, group of fluid for pipes – PS, DN, group of fluid figures in Annex II for categorization (4+1+4) upon the category the module is chosen see the notes bellow figures (importent) SEP bellow category I
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19 Remarks to categorization accesories is categorized using DN (pipe) and Volume (vessel) real category is the highest category every chamber has to be clasified in case of multichamber equipment category has not to be changed safety accesories – cat. IV except „special equipment“
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20 Sound engineering practice pressure equipment is designed taking into account all relevant factors influencing its safety such equipment is manufactured, verified and delivered with instructions for use in order to ensure its safety during its intended life, when used in foreseeable or reasonably foreseeable conditions the manufacturer is responsible for the application of sound engineering practice
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21 Determining of table
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22 Modules totaly 13 modules from A to H1 Ist cat. – A IInd cat. – A1, D1, E1 IIIrd cat. – B1+D, B1+F, B+E, B+C1, H IVth cat. – B+D, B+F, G, H1 it is possible to choose module from higher category (not vice versa)
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23 Modules A – self assessment by manufacturer (no NB number) A1 – A + NB – random inspections B – type test B1 – design examination C1 – as A1 (only with B or B1) D, D1 – production quality assurance E, E1 – product quality assurance F – product verification G – unit verification (for one - off production) H – full quality assurance H1 – H + B1+ C1
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24 Essential safety requirements general design manufacturing material boilers piping quantitative requirements
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25 General obligatory hazard analysis state of the art risk elimination protection measures information for user
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26 Design
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27 Factors internal/external pressure ambient and operational temperatures static pressure and mass of contents in operating and test conditions traffic, wind, earthquake loading reaction forces and moments which result from the supports, attachments, piping, etc. corrosion and erosion, fatigue, etc. decomposition of unstable fluids
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28 Adequate strenght calculation – formula, FEM, fracture mechanics experimental method – limited to PS.V < 6000 bar.L or PS.DN < 3000 bar test program (defined criteria) calculation + experiment
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29 Safe handling and operation attention to: closures and openings dangerous discharge of pressure devices to prevent physical access whilst pressure or a vacuum exists surface temperature decomposition of unstable fluids
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30 means for examination means for draining and venting wear corrosion and chemical attack means for filling and discharge protection external fire
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31 Manufacturing
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32 Procedures for manufacture preparation of parts permanent joining nondestructive testing heat treatment traceability
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33 Permanent joining for pressure equipment in categories II, III and IV, operating procedures and personnel must be approved by a competent third party (NB, RTPO) the third party must perform examinations and tests as set out in the appropriate harmonized standards or equivalent examinations and tests or must have them performed
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34 Non – destructive tests non - destructive tests of permanent joints must be carried out by suitable qualified personnel for pressure equipment in categories III and IV, the personnel must be approved by RTPO
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35 Tracebility procedures to identify material from receipt, through production, up to final assessment
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36 Final assessment final inspection proof test inspection of safety devices – for assemblies
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37 Final inspection examination of relevant documents examination of test results carried during manufacture visual examination of device – internal, external (also possible during manufacture)
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38 List of required documents evidence of qualification of NDT personnel relevant to the equipment category evidence of qualification of permanent joining personnel relevant to the equipment category data dealing with heat treatment (e.g. diagram of temperatures) inspection documents for base materials and consumables procedures for assuring material traceability NDT test reports, including radiographic films test reports of destructive tests (e.g. test coupons) reports on defects or deviations arising during manufacture data related to the preparation of component parts (e.g. forming chamfering) evidence of qualification of permanent joining procedures conceptual design and manufacturing drawings and diagrams of components, sub-assemblies, circuits, etc. results of design calculation made or test results in case of experimental design
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39 Proof test hydrostatic pressure test for category I – statistical basis other tests with equivalent validity
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40 Marking and labelling manufacturer name year of manufacture serial or batch number allowable limits further information depending on the type of equipment (PS, V, TS, DN etc.) CE marking
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41 Operating instructions details accompanying the CE mark operating instructions for mounting, putting into service, use and maintenance, which include as far as relevant to the equipment: safe operating limits and design basis (includes anticipated operating and assumed design conditions, intended life, design code used, joint coefficients and corrosion allowances) features of the design relevant to the life of the equipment residual hazards not prevented by design or protective measures, that might arise from foreseeable misuse technical documents, drawings and diagrams necessary for a full understanding of these instructions information about replacable parts, for example per clause
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42 Materials suitable for application harmonized EN EAM – european approval for materials PMA – particular material appraisal e.g. EN 10204: 2004 – inspection documents issued by material manufacturer
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43 Additional for boilers risk of overheating protection against such risk samplings removal of deposits removal of residual heat dangerous accumulation of ignitable mixtures flame blowback
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44 Additional for piping risk of overstressing from forces and movement condensation turbulance and vortices fatigue due to vibrations position of underground piping
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45 Quantitative requirements allowable stresses test pressure value impact energy 27 J – bending rupture energy at max. 20°C (for steel) 14 % - ductility (for steel)
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46 Technical file description of equipment drawings list of used standards and regulations calculations test reports (WPQR, WPS) test carried during manufacture information of personnel for welding and NDT
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47 Conformity assessment Modules
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48 Module A internal production control selfassessment by manufacturer manufacturer: prepares technical file carrying final assessment placing CE (only)
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49 Module A1 internal manufacturing checks with monitoring of the final assessment module A + monitoring of final assessment by NB (unexpected visits) NB takes samples and performs final assessment periodicity upon NB internal procedures CE + NB number
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50 Module B EC type - examination NB ascertains and attests that a representative example of the production meets the relevant provisions provisions for application assessment of technical file + examinations and tests on site assessment of additional changes EC type - examination certificate no CE
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51 Module B1 EC design - examination NB ascertains and attests that a design of item(s) of the production meets the relevant provisions provisions for application assessment of technical file assessment of additional changes EC design - examination certificate no CE
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52 Module C1 conformity to type connected with module B procedures are same as for module A1 assessment if product is in line with type (described in EC type - examination certificate) CE + NB number
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53 Module D production quality assurance connected with module B or B1 approving QS for production and final assessment provisions for application certificate of ISO 9001 is not satisfactory but can help NB performs periodic audits (obligatory) and unexpected visits (not obligatory) CE + NB number
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54 Module D1 production quality assurance approving QS for production and final assessment manufacturer has to prepare technical file provisions for application certificate of ISO 9001 is not satisfactory but can help NB performs periodic audits (obligatory) and unexpected visits (not obligatory) CE + NB number
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55 Module E product quality assurance connected with module B approving QS for final assessment provisions for application certificate of ISO 9001 is not satisfactory but can help NB performs periodic audits (obligatory) and unexpected visits (not obligatory) CE + NB number
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56 Module E1 product quality assurance approving QS for final assessment manufacturer has to prepare technical file provisions for application certificate of ISO 9001 is not satisfactory but can help NB performs periodic audits (obligatory) and unexpected visits (not obligatory) CE + NB number
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57 Module F product verification connected with module B or B1 NB performs examinations and tests on every product certificate of conformity CE + NB number
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58 Module G unit verification NB performs design assessment, examinations and tests on every unit provisions for application and technical file certificate of conformity most used for one - off production CE + NB number
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59 Module H full quality assurance approving QS for design, production and final assessment provisions for application certificate of ISO 9001 is not satisfactory but can help NB performs periodic audits (obligatory) and unexpected visits (not obligatory) CE + NB number
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60 Module H1 B1 + H + C1
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61 Remarks to modules one module – one NB (subcontracting is possible) two notified bodies for combinations only one manufacturer for combinations
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62 Declaration of conformity manufacturer (name, address) description of equipment module(s) used list of equipment constituing assembly NB data + number list of standards and specification list of other regulations data about person who signed declaration
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63 Thank you for your attention
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