iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
CEN

EN 12952-5:2021

(Main)

Water-tube boilers and auxiliary installations - Part 5: Workmanship and construction of pressure parts of the boiler

Water-tube boilers and auxiliary installations - Part 5: Workmanship and construction of pressure parts of the boiler

This European Standard specifies requirements for the workmanship and construction of water-tube boilers as defined in EN 12952-1.

Wasserrohrkessel und Anlagenkomponenten - Teil 5: Verarbeitung und Bauausführung für drucktragende Kesselteile

Chaudières à tubes d'eau et installations auxiliaires - Partie 5: Fabrication et construction des parties sous pression des chaudières

Vodocevni kotli in pomožne napeljave - 5. del: Izdelava in izvedba tlačno obremenjenih delov kotla

Ta evropski standard določa zahteve za izdelavo in izvedbo vodocevnih kotlov iz standarda EN 12952-1.

General Information

Status
Published
Publication Date
21-Dec-2021
Withdrawal Date
29-Jun-2022
ICS
27.040 - Gas and steam turbines. Steam engines
Technical Committee
CEN/TC 269 - Shell and water tube boilers
Drafting Committee
CEN/TC 269/WG 1 - Water-tube boilers
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
22-Dec-2021
Due Date
26-Aug-2021
Completion Date
22-Dec-2021
Directive
2014/68/EU - Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment
Mandate
M/071 - Mandate to CEN for standardization in the field of Pressure equipment
Ref Project
SIST EN 12952-5:2022 - Water-tube boilers and auxiliary installations - Part 5: Workmanship and construction of pressure parts of the boiler

Relations

Replaces
EN 12952-5:2011 - Water-tube boilers and auxiliary installations - Part 5: Workmanship and construction of pressure parts of the boiler
Effective Date
13-Mar-2019

Buy Standard

EN 12952-5:2022EN 12952-5:2022
PreviousNext
Standard
EN 12952-5:2022
English language
96 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 12952-5:2022
01-februar-2022
Nadomešča:
SIST EN 12952-5:2012
Vodocevni kotli in pomožne napeljave - 5. del: Izdelava in izvedba tlačno
obremenjenih delov kotla
Water-tube boilers and auxiliary installations - Part 5: Workmanship and construction of
pressure parts of the boiler
Wasserrohrkessel und Anlagenkomponenten - Teil 5: Verarbeitung und Bauausführung
für drucktragende Kesselteile
Chaudières à tubes d'eau et installations auxiliaires - Partie 5: Fabrication et construction
des parties sous pression des chaudières
Ta slovenski standard je istoveten z: EN 12952-5:2021
ICS:
27.060.30 Grelniki vode in prenosniki Boilers and heat exchangers
toplote
SIST EN 12952-5:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 12952-5:2022

---------------------- Page: 2 ----------------------
SIST EN 12952-5:2022


EN 12952-5
EUROPEAN STANDARD

NORME EUROPÉENNE

December 2021
EUROPÄISCHE NORM
ICS 27.040 Supersedes EN 12952-5:2011
English Version

Water-tube boilers and auxiliary installations - Part 5:
Workmanship and construction of pressure parts of the
boiler
Chaudières à tubes d'eau et installations auxiliaires - Wasserrohrkessel und Anlagenkomponenten - Teil 5:
Partie 5: Fabrication et construction des parties sous Verarbeitung und Bauausführung für drucktragende
pression des chaudières Kesselteile
This European Standard was approved by CEN on 1 November 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.

This European Standard exists 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-CENELEC 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12952-5:2021 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
SIST EN 12952-5:2022
EN 12952-5:2021 (E)
Contents
European foreword . 8
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 12
4 Symbols and abbreviations . 12
5 General. 12
6 Pressure part . 13
6.1 Drums, headers and similar pressure parts . 13
6.1.1 Principles for manufacturing . 13
6.1.2 Manufacturing process for header ends . 13
6.1.3 Material for header ends . 13
6.2 Material identification . 13
6.3 Material marking .
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

CEN
EN 12952-3:2022(Main)
Water-tube boilers and auxiliary installations - Part 3: Design and calculation for pressure parts of the boiler
SIST EN 12952-3:2023

This document specifies the requirements for the design and calculation of water-tube boilers as defined in EN 12952-1.
The purpose of this document is to ensure that the hazards associated with water-tube boilers are reduced to a minimum by the proper application of the design according to this part of EN 12952.

  • Standard
    165 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12952-16:2022(Main)
Water-tube boilers and auxiliary installations - Part 16: Requirements for grate and fluidized-bed firing systems for solid fuels for the boiler
SIST EN 12952-16:2022

1.1   Firing systems
This document applies to atmospheric fluidized-bed and grate firing systems of steam boilers and hot water generators. These systems commence at the fuel bunkers and end at the ash extraction plant. For combination of various firing systems, the individual requirements of each system apply, especially those included in EN 12952-8:2022 and EN 12952-9:2022.
If several fuels are burnt simultaneously or if a fuel quality varies considerably (e.g. moisture content), additional safety measures can be necessary, especially with respect to limitation of the fuel flow into the firing system and ensuring proper air supply to the individual fuels.
Pressurized firing systems can require enhanced safety measures, which are not given in this European Standard.
1.2   Fuels
This document covers the use of solid fuels. Pulverized fuel fired in an entrained air flow (burner) system is covered by EN 12952-9:2022.
Solid fuels covered are:
•   all coal qualities, e.g. lignite or brown coal, sub-bituminous or hard brown coal, bituminous coal or hard coal, pitch coal, anthracite, coke, coal culm, coal sludge;
•   other fossil solid fuels (e.g. peat, oil shale);
•   biomass solid fuels (e.g. wood, wood wastes [bark], pellets, energy plants [miscanthus], harvest wastes [straw] and briquettes);
•   municipal waste solid fuels (e.g. garbage, sewage sludge, refuse derived fuels [RDF]);
•   industrial waste solid fuels (e.g. petrol coke, soot, tyres, paper wastes, coated wood chips, spent wood, animal product wastes).
Fuel blends from two or more groups, or fuels of unconventional or unknown quality can require special safety measures which can be proved either by practical experience gained from comparable fuels, or by suitable tests, e.g. in accordance with EN 14034-2:2006+A1:2011. Such measures specified and documented by the manufacturer.
Fuels on which the design is documented in the operating instructions (see 11.2). This includes the fuel data for 100 % input of the basic fuel and the data for any supplementary fuels together with their maximum thermal input percentage.
1.3   Operation
The requirements for operational equipment in Clause 4, Clause 5, Clause 6, Clause 7, Clause 8, Clause 9, Clause 10 and Clause 11 apply to steam boilers and hot water generators with permanent supervision by properly trained personnel familiar with the special conditions of the firing systems and the type of fuel.

  • Standard
    23 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12952-9:2022(Main)
Water-tube boilers and auxiliary installations - Part 9: Requirements for firing systems for pulverized solid fuels for the boiler
SIST EN 12952-9:2022

1.1   Firing systems
This document applies to pulverized fuel firing systems of steam boilers and hot water generators and commences at the filling equipment for the boiler bunkers or for the pulverized fuel storage system and ends at the ash extraction plant. For multifuel firing systems using separate or combined burners, these requirements apply to the pulverized fuel firing part involved. For other fuels or firing systems used in combination, other requirements apply, e.g. EN 12952-8:2022.
1.2   Fuels
These requirements cover the use of pulverized fuels (e.g. coke, anthracite, bituminous coal or hard coal, lignite or brown coal, petrol coke, oil shale and pulverized bio mass) ranging from low to high volatile matter content.
1.3   Operation
Requirements for operational equipment apply for steam boilers and hot water generators with permanent supervision by properly trained persons.
As firing systems using pulverized fuel can be designed either as direct-firing or as indirect-firing systems, operational requirements have to be differentiated. Annex A summarizes the operational requirements for firing systems including the pulverizing system.

  • Standard
    28 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12952-8:2022(Main)
Water-tube boilers and auxiliary installations - Part 8: Requirements for firing systems for liquid and gaseous fuels for the boiler
SIST EN 12952-8:2022

1.1   Firing systems
This document specifies requirements for liquid and gaseous fuel firing systems of steam boilers and hot water generators as defined in EN 12952-1:2015.
These requirements also apply to firing systems of chemical recovery boilers (black liquor boilers) with the additions and amendments specified in Annex A.
These requirements also apply to gas turbines in combination with fired/unfired heat recovery steam generators with the additions and amendments specified in Annex B.
NOTE 1   This document is not applicable to coil type boilers (flash boilers/small boilers) that use burners in accordance with EN 12953-7 for single burner installations.
NOTE 2   This document is not applicable to the storage of liquid fuels and to transfer stations of long-distance gas pipelines.
1.2   Fuels
This document specifies requirements which cover the use of liquid and gaseous fuels as defined in this document. Fuels deviating from standardized commercially available types can require additional or alternative safety measures. For black liquor these safety measures are given in Annex A.

  • Standard
    33 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12952-10:2021(Main)
Water-tube boilers and auxiliary installations - Part 10: Requirements for safety devices against excessive pressure
SIST EN 12952-10:2022

This part of this European Standard specifies the requirements for safety devices against excessive pressure in water tube boilers as defined in EN 12952-1.

  • Standard
    14 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12952-2:2021(Main)
Water-tube boilers and auxiliary installations - Part 2: Materials for pressure parts of boilers and accessories
SIST EN 12952-2:2022

This European Standard specifies the requirements for the product forms for use in pressure parts of water-tube boilers and for parts welded on to pressure parts:
   plates;
   wrought seamless tubes;
   electrically welded tubes;
   submerged, plasma and TIG arc-welded tubes;
   forgings;
   castings;
   rolled bars;
   welding consumables;
   fasteners;
   seamless composite tubes.

  • Standard
    40 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12952-6:2021(Main)
Water-tube boilers and auxiliary installations - Part 6: Inspection during construction, documentation and marking of pressure parts of the boiler
SIST EN 12952-6:2022

This European Standard specifies requirements for the inspection during construction, documentation and marking of water-tube boilers as defined in EN 12952-1.

  • Standard
    33 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Standard – translation
    34 pages
    Slovenian language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12952-1:2015(Main)
Water-tube boilers and auxiliary installations - Part 1: General
SIST EN 12952-1:2016

1.1   General
This European Standard applies to water-tube boilers with volumes in excess of two litres for the generation of steam and/or hot water at a maximum allowable pressure PS greater than 0,5 bar and with a temperature in excess of 110 °C as well as auxiliary installations (other plant equipment).
The purpose of this European Standard is to ensure that the necessary essential safety requirements according to Annex I of the Pressure Equipment Directive are fulfilled in order to guarantee the safety of water tube boilers.
This aim will be achieved by:
-   the proper application of the design, manufacturing, testing and inspection methods and techniques,
-   the provision of protective measures against hazards, which cannot be eliminated, and
-   the provision of information on residual hazards and other measures to reduce risk,
which are incorporated in the various parts of this European Standard.
The requirements of this European Standard take account of pressure-related hazards, which apply to water tube boilers, including failure of pressure-retaining components due to overheating.
This standard recognizes that it is not possible to cover all the combinations of situations that might arise.
1.2   Boiler assembly
For the purpose of this European Standard, the boiler assembly includes:
-   the water-tube boiler including all the pressure parts from the feedwater inlet (including the inlet valve) up to and including the steam and/or hot water outlet (including the outlet valve or, if there is no valve, the first circumferential weld or flange downsteam of the outlet header);
-   all superheaters, reheaters, economizers, that are not capable of isolation from the main system by interposing shut-off valves, associated safety accessories and interconnecting piping;
-   additionally, the piping that is connected to the boiler involved in services such as draining, venting, desuperheating, etc., up to and including the first isolating valve in the tubing line downstream of the boiler;
-   reheaters which are independently fired, and are separately provided with their safety accessories including all control and safety systems.
The following equipment and components can be integrated in the assembly at the discretion of the manufacturer:
-   isolatable superheaters, reheaters, economizers and related interconnecting piping;
-   the heat supply or firing system;
-   the means of preparing and feeding the fuel to the boiler including the control systems;
-   the means of providing the boiler with feedwater including the control system;
-   the pressure expansion vessels and tanks of hot water generating plant.
1.3   Other plant equipment
a)   The boiler supporting structural steelwork, the thermal insulation and/or brickwork and the casing;
b)   the means of providing the boiler with air including the forced draught fans and air pre-heaters which are heated by the gases of combustion;
c)   the facilities for moving flue gases through the boiler up to the stack inlet, including the induced draught fans and the air pollution reducing equipment located in the flue gas removal path;
d)   all other equipment necessary for the operation of the boiler plant.
1.4   Exclusions
This European Standard does not apply to the following types of boiler plant:
a)   boilers other than stationary boilers;
b)   shell type boilers;
c)   electrical boilers;
d)   nuclear primary circuits, the failure of which can cause an emission of radioactivity.

  • Standard
    15 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12952-18:2012(Main)
Water-tube boilers and auxiliary installations - Part 18: Operating instructions
SIST EN 12952-18:2012

This part of this European Standard specifies the organisation and content of operating instructions for water-tube boilers and auxiliary installations as defined in EN 12952-1 when placed on the market.
To what extent the following aspects are used for the establishment of an operating instruction depends on the stipulated scope of delivery and of the requirements by contract regarding plant operation and maintenance.
NOTE   The manufacturer’s scope of supply may be either pressure equipment, or pressure equipment and “auxiliary” plant such as motors, pumps and fans.

  • Standard
    12 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12952-7:2012(Main)
Water-tube boilers and auxiliary installations - Part 7: Requirements for equipment for the boiler
SIST EN 12952-7:2012

This part of this European Standard specifies the essential requirements for equipment and protective devices for water-tube boiler plant as defined in EN 12952-1, to ensure the boiler operates safely within the allowable limits (pressure, temperature, etc.).
NOTE 1   Additional requirements specially needed for boilers without manual intervention are specified in Clause 7.
NOTE 2   Requirements for equipment for chemical recovery boilers are given in Annex A.

  • Standard
    42 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Standard
    44 pages
    German language
    sale 10% off
    e-Library read for
    1 day
  • Standard – translation
    44 pages
    Slovenian language
    sale 10% off
    e-Library read for
    1 day