SIST EN 14276-2:2007/kprA1:2010

Pressure equipment for refrigerating systems and heat pumps - Part 2: Piping - General requirements

2010-03-29 EMA: Mandate and consultant added following e-mail from PM sent to dataservice on 2010-03-29.

Druckgeräte für Kälteanlagen und Wärmepumpen - Teil 2: Rohrleitungen - Allgemeine Anforderungen

Équipements sous pression pour systèmes de réfrigération et pompes à chaleur - Partie 2: Tuyauteries - Exigences générales

Tlačna oprema za hladilne sisteme in toplotne črpalke - 2. del: Cevovodi - Splošne zahteve

General Information

• Status: Not Published
• Public Enquiry End Date: 24-Nov-2010
• ICS: 23.020.32 - Pressure vessels
• ICS: 27.080 - Heat pumps
• ICS: 27.200 - Refrigerating technology
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 98 - Abandoned project (Adopted Project)
• Start Date: 08-Oct-2019
• Due Date: 13-Oct-2019
• Completion Date: 08-Oct-2019
• Directive: 97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: EN 14276-2:2007/FprA1 - Pressure equipment for refrigerating systems and heat pumps - Part 2: Piping - General requirements

Relations

• Consolidated By: SIST EN 14276-2:2007+A1:2011 - Pressure equipment for refrigerating systems and heat pumps - Part 2: Piping - General requirements
• Effective Date: 20-Nov-2010
• Amends: SIST EN 14276-2:2007 - Pressure equipment for refrigerating systems and heat pumps - Part 2: Piping - General requirements
• Effective Date: 27-Mar-2010

Overview

SIST EN 14276-2:2007/kprA1:2010 is a key European standard developed by CEN focusing on pressure equipment specifically designed for refrigerating systems and heat pumps. This part 2 document addresses the piping - general requirements for these systems, ensuring safety, reliability, and compliance with applicable legislative mandates, including the EU Directive 97/23/EC on Pressure Equipment.

The standard modifies and updates requirements related to materials, design, manufacturing, testing, and documentation for piping used in refrigerating and heat pump systems. It encompasses amendments to clauses covering normative references, terms and definitions, design stress, joint design, material traceability, permanent joints, and non-destructive testing.

This standard applies to manufacturers, engineers, and safety inspectors involved in designing and implementing pressure piping systems for refrigerating and heat pump equipment, responding to evolving safety and environmental regulations.

Key Topics

• Scope and Normative References: The updated references, including EN 378 series and EN 13445-3:2009, provide harmonized guidance on safety and environmental requirements, unfired pressure vessel design, and welding nomenclature essential for refrigerating system piping.

• Design and Construction Requirements: Modifications to design stress calculations, joint design, and special considerations ensure piping can withstand operational pressures and temperature conditions safely while preventing brittle fracture.

• Material Specifications: Clear guidelines for materials for both pressure-retaining and non-pressure-retaining parts, with comprehensive documentation and traceability requirements, help maintain quality control throughout the manufacturing process.

• Manufacturing and Post-Weld Treatments: Standards for forming pressure parts, permanent joint methods, post-weld heat treatment, and internal cleanness guarantee piping integrity and operational cleanliness critical for refrigerating and heat pump efficiency.

• Testing and Approval: Pressure testing protocols are defined to confirm the safety of category-specific piping, alongside non-destructive testing and type approval processes to verify compliance before deployment.

• Integration with Related Standards: EN 14276-2 references earlier parts and amending documents (e.g., EN 14276-1) to maintain consistency across pressure equipment components and systems.

Applications

• Refrigeration Systems: Designed for safe and reliable piping solutions in commercial, industrial, and residential refrigeration applications, where pressure equipment compliance is critical for operational safety.

• Heat Pumps: Provides manufacturing and testing standards for piping in heat pump systems, ensuring environmental safety and operational efficiency under pressure conditions.

• Installation and Maintenance: Assists engineers and technicians in following standardized procedures for pipe installation, pressure testing, and maintenance to extend system life and comply with regulations.

• Safety Compliance: Enables compliance with EU Pressure Equipment Directive 97/23/EC, minimizing risks associated with high-pressure refrigerants and contributing to workplace safety.

• Quality Assurance: Supports manufacturers and third-party inspectors in implementing material traceability, design reviews, and non-destructive testing to uphold industry-recognized quality standards.

Related Standards

• EN 14276-1:2006 and Amendments: Provides general requirements for pressure vessels in refrigerating systems and heat pumps, closely linked with the piping specifications in part 2.

• EN 378 Series (2008 Edition): Comprehensive safety and environmental requirements for refrigerating systems and heat pumps, including design, installation, operation, and maintenance.

• EN 13445-3:2009: Unfired pressure vessels design standard that complements piping design by providing detailed construction criteria.

• EN ISO 4063:2009: Defines welding and allied process nomenclature, integral to ensuring appropriate welding procedures in piping manufacture.

• EN ISO 23277:2009: Specifies acceptance levels for non-destructive penetrant testing of welds, a critical aspect of piping quality control.

Conclusion

SIST EN 14276-2:2007/kprA1:2010 serves as an essential reference for stakeholders involved in the engineering and manufacturing of pressure piping systems for refrigerating and heat pump applications. Its detailed amendments strengthen safety protocols, material standards, design integrity, and testing requirements-ensuring compliance with European legislative frameworks and enhancing system reliability. Adhering to this standard facilitates safer industrial practices and supports environmental responsibility in refrigeration and heating technology.

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2010
7ODþQDRSUHPD]DKODGLOQHVLVWHPHLQWRSORWQHþUSDONHGHO&HYRYRGL6SORãQH
]DKWHYH
Pressure equipment for refrigerating systems and heat pumps - Part 2: Piping - General
requirements
Druckgeräte für Kälteanlagen und Wärmepumpen - Teil 2: Rohrleitungen - Allgemeine
Anforderungen
Équipements sous pression pour systèmes de réfrigération et pompes à chaleur - Partie
2: Tuyauteries - Exigences générales
Ta slovenski standard je istoveten z: EN 14276-2:2007/FprA1
ICS:
23.020.30 7ODþQHSRVRGHSOLQVNH Pressure vessels, gas
MHNOHQNH cylinders
27.080 7RSORWQHþUSDONH Heat pumps
27.200 Hladilna tehnologija Refrigerating technology
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
FINAL DRAFT
EN 14276-2:2007
NORME EUROPÉENNE
EUROPÄISCHE NORM
FprA1
August 2010
ICS 23.020.30; 27.080; 27.200
English Version
Pressure equipment for refrigerating systems and heat pumps -
Part 2: Piping - General requirements
Équipements sous pression pour systèmes de réfrigération Druckgeräte für Kälteanlagen und Wärmepumpen - Teil 2:
et pompes à chaleur - Partie 2: Tuyauteries - Exigences Rohrleitungen - Allgemeine Anforderungen
générales
This draft amendment is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee
CEN/TC 182.
This draft amendment A1, if approved, will modify the European Standard EN 14276-2:2007. If this draft becomes an amendment, CEN
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment
into the relevant national standard without any alteration.

This draft amendment was established by CEN in three official versions (English, French, German). A version in any other language made
by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14276-2:2007/FprA1:2010: E
worldwide for CEN national Members.

Contents Page
Foreword .3
1 Modification of Clause 2, Normative references .4
2 Modification of Clause 3, Terms, definitions, symbols, quantities and units .4
3 Modification to 4.1, General .4
4 Modification to 4.3.1.1 .5
5 Modification to 4.3.2, Special considerations .5
6 Modification to 4.4, Requirements for the prevention of brittle fracture .5
7 Modification to 4.5, Material documentation .5
8 Modification to 4.6, Materials for non-pressure retaining parts .5
9 Modification to 5.1, Category of piping .5
10 Modification to Table 3, Applicable requirements per piping type .5
11 Modification to 6.7, Design stress.6
12 Modification to 6.9.1, General .6
13 Modification of 6.9.2.3, Other piping components .6
14 Modification to 6.9.3, Joint design .6
15 Modification to 7.1, Material traceability .7
16 Modification to 7.3, Permanent joints .7
17 Modification to 7.4, Forming of pressure parts .7
18 Modification to 7.5, Post weld heat treatment .7
19 Modification to 7.6, Internal cleanness .7
20 Modification to 8.2.3, Design review and design approval .7
21 Modification to 8.2.4, Design documentation change .7
22 Modification to 8.3, Type approval .8
23 Modification to 8.4, Calibration .8
24 Modification to 8.5, Material .8
25 Modification to 8.6, Manufacturing .8
26 Modification to 8.7, Non-destructive testing .8
27 Modification to 8.8, Subcontracted elements .8
28 Modification of 8.9.4.2, Pressure test for category Y, as defined in Table 2 .8

Foreword
This document (EN 14276-2:2007/FprA1:2010) has been prepared by Technical Committee CEN/TC 182
“Refrigerating systems, safety and environmental requirements”, the secretariat of which is held by DIN.
This document is currently submitted to the Unique Acceptance Procedure.
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 Equipment.
For relationship with EU directive 97/23/EC see informative Annex ZA, which is an integral part of this
document.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

1 Modification of Clause 2, Normative references
Replace references EN 378-1:2000, EN 378-2:2000, EN 378-3:2000 and EN 378-4:2000 with the following:
"EN 378-1:2008, Refrigerating systems and heat pumps — Safety and environmental requirements — Part 1:
Basic requirements, definitions, classification and selection criteria
EN 378-1:2008/prA1:2008, Refrigerating systems and heat pumps — Safety and environmental requirements
— Part 1: Basic requirements, definitions, classification and selection criteria
EN 378-2:2008+A1:2009, Refrigerating systems and heat pumps — Safety and environmental requirements
— Part 2: Design, construction, testing, marking and documentation
EN 378-3:2008, Refrigerating systems and heat pumps — Safety and environmental requirements — Part 3:
Installation site and personal protection
EN 378-4:2008, Refrigerating systems and heat pumps — Safety and environmental requirements — Part 4:
Operation, maintenance, repair and recovery".
Replace reference EN 13445-3:2002 with the following:
"EN 13445-3:2009, Unfired pressure vessels — Part 3: Design".
Replace reference EN ISO 4063:2000 with the following:
"EN ISO 4063:2009, Welding and allied processes ― Nomenclature of processes and reference numbers
(ISO 4063:2009)".
Add the following normative references
"EN 14276-1:2006/FprA1:2010, Pressure equipment for refrigerating systems and heat pumps — Part 1:
Vessels — General requirements" and
"EN ISO 23277:2009, Non-destructive testing of welds — Penetrant testing of welds — Acceptance levels
(ISO 23277:2006)".
2 Modification of Clause 3, Terms, definitions, symbols, quantities and units
Replace the existing sentence with the following:
"For the purposes of this document, the terms, definitions, symbols, quantities and units given in
EN 378-1:2008, EN 764-1:2004, EN 764-2:2002, EN 764-3:2002, EN 764-4:2002, EN 764-5:2002,
EN 14276-1:2006, EN 14276-1:2006/FprA1:2010 and the following apply.".
3 Modification to 4.1, General
st
Replace "EN 14276-1" in the 1 paragraph with "EN 14276-1 and EN 14276-1:2006/FprA1".
NOTE Needs to be adapted to "EN 14276-1:2006+A1", when the amendment text will be adopted and consolidated.
When "EN 14276-1:2006/FprA1:2010" will not be adopted, this instruction needs to be deleted.
4 Modification to 4.3.1.1
st
Replace "Annex I of EN 14276-1:2006" in the 1 paragraph with "EN 14276-1:2006, Annex I and
EN 14276-1:2006/FprA1:2010".
NOTE Needs to be adapted to "EN 14276-1:2006+A1:2010, Annex I", when the amendment text will be adopted and
consolidated. When "EN 14276-1:2006/FprA1:2010" will not be adopted, this instruction needs to be deleted.
5 Modification to 4.3.2, Special considerations
Replace "4.3.3 of
...