EN 14276-1:2006
(Main)Pressure equipment for refrigerating systems and heat pumps - Part 1: Vessels - General requirements
Pressure equipment for refrigerating systems and heat pumps - Part 1: Vessels - General requirements
This European Standard specifies the requirements for material, design, manufacturing, testing and documentation for stationary pressure vessels intended for use in refrigerating systems and heat pumps. These systems are refer-enced in this standard as refrigerating systems as defined in EN 378-1.
This European Standard applies to vessels including welded or brazed attachments up to and including the nozzle flanges, screwed, welded or brazed connectors or to the edge to be welded or brazed at the first circumferential joint connecting piping or other elements.
This European Standard applies to pressure vessels with an internal pressure down to – 1 bar, to account for the evacuation of the vessel prior to charging with refrigerant.
This European Standard applies to both the mechanical loading conditions and thermal conditions as defined in EN 13445-3 associated with refrigerating systems. It applies to pressure vessels subject to the maximum allowable temperatures for which nominal design stresses for materials are derived using EN 13445-2 and EN 13445-3 or as specified in this standard. In addition vessels designed to this standard should have a maximum design tempera-ture not exceeding 200 °C and a maximum design pressure not exceeding 64 bars. Outside of these limits, it is es-sential that EN 13445 be used for the design, construction and inspection of the vessel. Under these circumstances it is important that the unique nature of refrigerating plant, as indicated in the introduction to this standard, also be taken into account.
It is important that pressure vessels used in refrigerating systems and heat pumps of category less than II as de-fined in Annex H comply with other relevant clauses of EN 378-2 for vessels.
This European Standard applies to pressure vessels where the main pressure bearing parts are manufactured from metallic ductile materials as defined in Clause 4 and Annex I of this standard.
This European Standard does not apply to vessels of t
Druckgeräte für Kälteanlagen und Wärmepumpen - Teil 1: Behälter - Allgemeine Anforderungen
1.1 Diese Europäische Norm legt die Anforderungen an Werkstoffe, Konstruktion, Herstellung, Prüfung, Aus-rüstungsteile mit Sicherheitsfunktion und Dokumentation für ortsfeste Druckbehälter für Kälteanlagen und Wärme-pumpen fest, die für das Inverkehrbringen maßgebend sind. Diese Anlagen werden in der vorliegenden Norm als Kälteanlagen nach EN 378-1 bezeichnet.
1.2 Diese Europäische Norm gilt für Druckbehälter mit angeschweißten oder angelöteten Bauteilen bis ein-schließlich Stutzenflansche, Schraub-, Schweiß- oder Lötverbindungen oder bis zu der ersten Schweiß- oder Lötnaht für den Anschluss von Rohrleitungen oder anderen Teilen.
1.3 Diese Europäische Norm gilt für die Auswahl, Anwendung und den Einbau von Ausrüstungsteilen mit
Sicherheitsfunktion zum Schutz der Druckbehälter während der verschiedenen Phasen des Kältemittelkreislaufs.
1.4 Diese Europäische Norm gilt für Druckbehälter bis - 1 bar, um die Luftabsaugung des Behälters vor dem Füllen mit Kältemittel zu berücksichtigen.
1.5 Diese Europäische Norm gilt sowohl für die mechanischen Belastungen als auch die thermischen Bean-spruchungen nach den Festlegungen in prEN 13445-3, die im Zusammenhang mit Kälteanlagen auftreten. Sie gilt für Druckbehälter mit den maximal zulässigen Temperaturen, für die die zulässigen Nennspannungen für die Werkstoffe nach den Teilen 2 und 3 der EN 13445 abgeleitet werden oder in dieser Norm festgelegt sind. Ferner sollten Behälter, die nach dieser Norm ausgelegt sind, eine maximale Auslegungstemperatur von 200 °C und einen maximalen Auslegungsdruck von 64 bar aufweisen. Außerhalb dieser Grenzwerte muss für die Konstruktion, Herstellung und Prüfung der Behälter prEN 13445 herangezogen werden. In diesen Fällen müssen die besonderen Merkmale der Kälteanlage, wie in der Einleitung der vorliegenden Norm angegeben, ebenfalls berücksichtigt
werden.
Equipements sous pression pour systèmes de réfrigération et pompes à chaleur - Partie 1: Récipients - Exigences générales
La présente Norme européenne spécifie les exigences relatives aux matériaux, à la conception, à la fabrication, aux essais et à la documentation concernant les récipients sous pression fixes destinés à être utilisés dans des systèmes de réfrigération et pompes à chaleur. Ces systèmes sont dénommés dans la présente norme , systèmes de réfrigération tels que défini dans l’EN 378 1.
La présente Norme européenne s’applique aux récipients comportant les raccords soudés ou brasés y compris les brides de tubulure, les raccords vissés, soudés ou brasés ou d’autre part au bord à souder ou à braser au premier joint circulaire de raccordement à la tuyauterie ou à d’autres éléments.
La présente Norme européenne s’applique aux récipients soumis à une pression intérieure jusqu’à 1 bar nécessaire pour réaliser la vidange du récipient avant de charger le fluide frigorigène.
La présente Norme européenne concerne les conditions de chargement mécanique et les conditions thermiques telles que définies dans l’EN 13445 3 associées aux systèmes de réfrigération. Elle s’applique aux récipients sous pression soumis aux températures maximales admissibles pour lesquelles sont induites les contraintes nominales de calcul en utilisant les EN 13445-2 et EN 13445-3 ou telles que spécifiées dans la présente norme. Les récipients conçus conformément à la présente norme doivent en outre avoir une température maximale de conception n’excédant pas 200 °C et une pression maximale de conception n’excédant pas 64 bars. En dehors de ces limites, l’EN 13445 doit être utilisé pour la conception, la construction et l’inspection du récipient. Dans ces circonstances, la nature particulière de l’installation de réfrigération, tel qu’indiqué dans l’introduction de la présente norme, doit également être prise en compte.
Tlačna oprema za hladilne sisteme in toplotne črpalke - 1. del: Posode - Splošne zahteve
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Pressure equipment for refrigerating systems and heat pumps - Part 1: Vessels - General requirements]DKWHYHEquipements sous pression pour systemes de réfrigération et pompes a chaleur - Partie 1: Récipients - Exigences généralesDruckgeräte für Kälteanlagen und Wärmepumpen - Teil 1: Behälter - Allgemeine AnforderungenTa slovenski standard je istoveten z:EN 14276-1:2006SIST EN 14276-1:2007en27.200Hladilna tehnologijaRefrigerating technology27.080Heat pumps23.020.30MHNOHQNHPressure vessels, gas cylindersICS:SLOVENSKI
STANDARDSIST EN 14276-1:200701-januar-2007
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14276-1July 2006ICS 23.020.30; 27.080; 27.200 English VersionPressure equipment for refrigerating systems and heat pumps -Part 1: Vessels - General requirementsAppareils à pression pour systèmes de réfrigération et depompes à chaleur - Partie 1: Récipients - PrescriptionsgénéralesDruckgeräte für Kälteanlagen und Wärmepumpen - Teil 1:Behälter - Allgemeine AnforderungenThis European Standard was approved by CEN on 24 May 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14276-1:2006: E
2 Contents Foreword.4 Introduction.5 1 Scope.6 2 Normative references.6 3 Terms and definitions.8 3.1 Definitions.8 3.2 Symbols, quantities and units.11 4 Materials.13 4.1 General.13 4.2 Requirements for materials to be used for pressurised parts.14 4.3 Requirements for materials.14 4.4 Requirements for prevention of brittle fracture.15 4.5 Material documentation.16 4.6 Materials for non-pressure retaining parts.16 5 Pressure Vessel classification.16 5.1 Category of vessel.16 5.2 Fluid classification.17 6 Design.17 6.1 General.17 6.2 Corrosion and corrosion protection.17 6.3 Stress corrosion cracking.18 6.4 Loading.18 6.5 Maximum allowable pressure PS.18 6.6 Design pressure Pd.18 6.7 Calculation pressure P or Pc.19 6.8 Design temperature td.19 6.9 Minimum material temperature.19 6.10 Calculation temperature tc.19 6.11 Joint coefficient.20 6.12 Design stress.21 6.13 Access and inspection openings, venting and draining provisions, filling and discharge provisions and handling devices.22 6.14 Methods for design.23 7 Manufacturing.28 7.1 General.28 7.2 Material traceability.28 7.3 Manufacturing tolerances.28 7.4 Permanent joints.28 7.5 Forming of pressure parts.33 7.6 Post weld heat treatment.33
3 7.7 Internal cleanness.33 7.8 Repairs/Reworks.34 7.9 Finishing operations.34 8 Testing and inspection.34 8.1 Performance of inspection and testing.34 8.2 Design documentation, review and approval.34 8.3 Type approval.36 8.4 Calibration.36 8.5 Material.37 8.6 Manufacturing.37 8.7 Non destructive testing.37 8.8 Subcontracted elements.37 8.9 Final inspection.37 8.10 Marking.38 8.11 Documentation.39 Annex A (normative)
Alternative requirements for prevention of brittle fracture: Method according to temperature stress cases.41 Annex B (normative)
Specification and approval of brazing procedures, brazers and brazing
operators.45 Annex C (normative)
Pressure testing.59 Annex D (informative)
Relations between the different pressures.63 Annex E (normative)
Experimental methods.64 Annex F (normative)
Material characteristics for design.69 Annex G (informative)
Component classification in the sense of the
Pressure Equipment Directive (PED).71 Annex H (informative)
Selection of module of conformity.72 Annex I (normative)
Grouping system for materials.74 Annex J (informative)
DN System.76 Annex K (normative)
Specification and approval of expansion procedures and operators.77 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC.83 Bibliography.85
4 Foreword This document (EN 14276-1:2006) has been prepared by Technical Committee CEN/TC 182 “Refrigerating sys-tems, safety and environmental requirements”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2007, and conflicting national standards shall be withdrawn at the latest by January 2007. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association to support Essential Requirements of EU Directive 97/23/EC concerning Pressure Equip-ment. For relationship with EU directive 97/23/EC see informative Annex ZA, which is an integral part of this document. This document consists of the following parts under the general title "Pressure equipment for refrigerating systems and heat pumps": Part 1: Vessels – General requirements Part 2: Piping – General requirements According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following coun-tries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Esto-nia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
5 Introduction This standard recognises the unique nature of vessels for refrigerating systems or heat pumps and is intended to addre
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