SIST EN 13084-7:2013
(Main)Free-standing chimneys - Product specifications of cylindrical steel fabrications for use in single wall steel chimneys and steel liners
Free-standing chimneys - Product specifications of cylindrical steel fabrications for use in single wall steel chimneys and steel liners
This European Standard deals with steel products for single wall steel chimneys and liners which are produced either in series or as single items. It is a product standard which specifies the performance requirements of cylindrical steel fabrications for use in single wall steel chimneys and steel liners for free-standing chimneys used to convey the flue gas to the outside atmosphere. It also specifies the requirements for insulation and cladding being part of the single wall steel chimney and liner. It provides for the evaluation of conformity of single wall steel chimneys and liners to this European Standard.
Freistehende Schornsteine - Produktfestlegungen für zylindrische Stahlbauteile zur Verwendung in einschaligen Stahlschornsteinen und Innenrohren aus Stahl
Diese Europäische Norm ist eine Produktnorm, die Festlegungen der Leistungsanforderungen für zylindrische Stahlbauteile enthält, zur Verwendung in einschaligen Stahlschornsteinen und Innenrohren aus Stahl für freistehende Schornsteine, welche zur Ableitung von Verbrennungsprodukten an die Außenluft verwendet
werden. Außerdem werden Anforderungen an die Wärmedämmung und Ummantelung, die Teil des einschaligen Schornsteins und Innenrohrs sind, festgelegt und sie dient der Beurteilung der Konformität der Schornsteine/Innenrohre aus Stahl mit den Festlegungen dieser EN. Stahlschornsteine/Stahlschornsteinprodukte, die nach dieser Europäischen Norm hergestellt werden, müssen den Anforderungen von EN 13084-1 und EN 1993-3-2 entsprechen.
Cheminées indépendantes - Spécifications des produit pour composants en acier pour l'utilisation dans des conduits simple paroi et des parois en acier
La présente Norme européenne traite des produits en acier pour les cheminées en acier à paroi simple et parois intérieures en acier qui sont produites en série ou individuellement. Il s'agit d'une norme de produit qui spécifie les performances relatives aux fabrications cylindriques en acier utilisées dans les cheminées en acier à paroi simple et les parois intérieures en acier destinées aux cheminées autoportantes dont la fonction principale est d'acheminer les fumées jusque dans l'atmosphère. Elle spécifie également les exigences relatives à l'isolation et au bardage équipant la cheminée en acier à paroi simple et la paroi intérieure. Elle permet l'évaluation de la conformité des cheminées à paroi simple et parois intérieures en acier à la présente Norme européenne.
Prostostoječi dimniki - Specifikacije proizvoda za cilindrične jeklene proizvode, ki se uporabljajo v enojnih zidnih jeklenih dimnikih in jeklenih ceveh
Ta evropski standard obravnava jeklene proizvode za enojne zidne jeklene dimnike in cevi, ki se proizvajajo v serijah ali posamezno. To je standard za proizvod, ki določa izvedbene zahteve za cilindrične jeklene proizvode, ki se uporabljajo v enojnih zidnih jeklenih dimnikih in jeklenih ceveh za prostostoječe dimnike za odvod izpušnih plinov v ozračje. Določa tudi zahteve za izolacijo in obloge enojnih zidnih jeklenih dimnikov in cevi. Omogoča vrednotenje skladnosti enojnih zidnih jeklenih dimnikov in cevi s tem evropskim standardom.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.HKFreistehende Schornsteine - Produktfestlegungen für zylindrische Stahlbauteile zur Verwendung in einschaligen Stahlschornsteinen und Innenrohren aus StahlCheminées indépendantes - Spécifications des produit pour composants en acier pour l'utilisation dans des conduits simple paroi et des parois en acierFree-standing chimneys - Product specifications of cylindrical steel fabrications for use in single wall steel chimneys and steel liners91.060.40Dimniki, jaški, kanaliChimneys, shafts, ductsICS:Ta slovenski standard je istoveten z:EN 13084-7:2012SIST EN 13084-7:2013en,fr,de01-marec-2013SIST EN 13084-7:2013SLOVENSKI
STANDARDSIST EN 13084-7:2006/AC:2009SIST EN 13084-7:20061DGRPHãþD
SIST EN 13084-7:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13084-7
December 2012 ICS 91.060.40 Supersedes EN 13084-7:2005English Version
Free-standing chimneys - Part 7: Product specifications of cylindrical steel fabrications for use in single wall steel chimneys and steel liners
Cheminées autoportantes - Partie 7: Spécifications de produit applicables aux fabrications cylindriques en acier pour cheminées en acier à paroi simple et parois intérieures en acier
Freistehende Schornsteine - Teil 7: Produktfestlegungen für zylindrische Stahlbauteile zur Verwendung in einschaligen Stahlschornsteinen und Innenrohren aus StahlThis European Standard was approved by CEN on 27 October 2012.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13084-7:2012: ESIST EN 13084-7:2013
EN 13084-7:2012 (E) 2 Contents Page Foreword .41 Scope .52 Normative references .53 Terms and definitions .54 Requirements .64.1 General .64.2 Performance characteristics .64.2.1 Mechanical resistance and stability.64.2.2 Resistance to fire .64.2.3 Gas tightness/Leakage .64.2.4 Flow resistance .64.2.5 Dimensioning/Thermal resistance .64.2.6 Thermal shock resistance .64.2.7 Resistance to freeze-thaw .74.3 Durability .74.4 Dangerous substances .75 Materials .75.1 Steels .75.2 Coating . 125.3 Insulation . 125.4 Cladding . 126 Construction . 126.1 Tolerances . 126.2 Welding . 126.3 Construction details . 126.4 Insulation . 126.5 Cladding . 137 Evaluation of conformity . 137.1 General . 137.1.1 Introduction . 137.1.2 Initial type testing . 137.1.3 Further type testing . 137.2 Factory production control . 137.2.1 General . 137.2.2 Material records . 147.2.3 Qualifications of the welders . 147.2.4 Welding quality control . 147.2.5 Coatings . 147.2.6 Geometrical dimensions . 148 Temperature classes . 159 Product designation . 15Annex A (normative)
Assessment of factory production control . 16A.1 General . 16A.2 Initial inspection. 16A.3 Continuous surveillance . 16A.4 Frequency of inspection . 17A.4.1 General . 17A.4.2 Surveillance intervals . 17A.4.3 Declaration of manufacturer . 17A.4.4 Measures in non-compliance . 17A.5 Reports . 17SIST EN 13084-7:2013
EN 13084-7:2012 (E) 3 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive . 18Bibliography . 24 SIST EN 13084-7:2013
EN 13084-7:2012 (E) 4 Foreword This document (EN 13084-7:2012) has been prepared by Technical Committee CEN/TC 297 “Free-standing industrial chimneys”, 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 June 2013, and conflicting national standards shall be withdrawn at the latest by June 2013. 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. This document supersedes EN 13084-7:2005. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. Compared with EN 13084-7:2005, the following changes have been made: a) Corrigendum of 2008 was incorporated; b) 6.2 was revised; c) 7.2.4 was revised. This European Standard, EN 13084, Free-standing chimneys, consists of the following parts: Part 1: General requirements; Part 2: Concrete chimneys; Part 4: Brick liners — Design and execution; Part 5: Material for brick liners — Product specifications; Part 6: Steel liners — Design and execution; Part 7: Product specifications of cylindrical steel fabrications for use in single wall steel chimneys and steel liners (the present document); Part 8: Design and execution of mast construction with satellite components. The following European Standard additionally applies: EN 1993-3-2, Eurocode 3: Design of steel structures — Part 3-2: towers, masts and chimneys — Chimneys. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 13084-7:2013
EN 13084-7:2012 (E) 5
1 Scope This European Standard deals with steel products for single wall steel chimneys and liners which are produced either in series or as single items. It is a product standard which specifies the performance requirements of cylindrical steel fabrications for use in single wall steel chimneys and steel liners for free-standing chimneys used to convey the flue gas to the outside atmosphere. It also specifies the requirements for insulation and cladding being part of the single wall steel chimney and liner. It provides for the evaluation of conformity of single wall steel chimneys and liners to this European Standard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 287-1, Qualification test of welders — Fusion welding — Part 1: Steels EN 1090-2, Execution of steel structures and aluminium structures — Part 2: Technical requirements for steel structures EN 1418, Welding personnel — Approval testing of welding operators for fusion welding and resistance weld setters for fully mechanized and automatic welding of metallic materials EN 1993-1-6, Eurocode 3 — Design of steel structures — Part 1-6: Strength and Stability of Shell Structures EN 1993-3-2, Eurocode 3 — Design of steel structures — Part 3-2: Towers, masts and chimneys — Chimneys EN 10025-2, Hot rolled products of structural steels — Part 2: Technical delivery conditions for non-alloy structural steels EN 10025-5, Hot rolled products of structural steels — Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance EN 10028-2, Flat products made of steels for pressure purposes — Part 2: Non-alloy and alloy steels with specified elevated temperature properties EN 10088-2, Stainless steels — Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes EN 10095, Heat resisting steels and nickel alloys EN 10204, Metallic products — Types of inspection documents EN 13084-1:2007, Free-standing chimneys — Part 1: General requirements EN 13084-6:2004, Free-standing chimneys — Part 6: Steel liners — Design and execution
EN ISO 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) — Quality levels for imperfections (ISO 5817:2003, corrected version:2005, including Technical Corrigendum 1:2006) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13084-1:2007 and EN 13084-6:2004 apply.
The single wall steel chimney and steel liner should be considered in the same way for design and requirements. SIST EN 13084-7:2013
EN 13084-7:2012 (E) 6 4 Requirements
4.1 General For the purposes of this document, EN 13084-6 applies. The products of single wall steel chimney and liner manufactured in accordance with this European Standard shall comply with the requirements given in EN 13084-1 and EN 1993-3-2. The design of steel chimneys should be covered by the Eurocodes dealing with chimneys and the requirements should be based on design and intended end use. 4.2 Performance characteristics 4.2.1 Mechanical resistance and stability Mechanical resistance and stability shall be verified in accordance with EN 1993-3-2 taking into account the characteristic values given in Tables 1 to 3 in this standard. 4.2.2 Resistance to fire Resistance to fire relates only to a soot-fire occurring within the chimney.
A chimney could convey air and/or different type of gases (see EN 13084-1). Soot-fire resistance shall only be verified for products conveying within the flue gas emitted for solid combustibles.
The resistance to fire shall be verified in accordance with EN 13084-6. If the product has been designed to be soot fire resistant, the product designation is “G”, otherwise the designation is “O”. 4.2.3 Gas tightness/Leakage The product shall be gas tight and the class H0 shall be declared in accordance with EN 13084-6. In order to meet this requirement, the design shall be in accordance with EN 13084-6, and the manufacture shall be in accordance with the qualities and controls stated in this standard. 4.2.4 Flow resistance The mean roughness value for steel to carry out flow calculations shall be declared in accordance with EN 13084-1:2007, Table A.3. The individual resistance coefficient of some forms is given in EN 13084-1:2007, Table A.4. 4.2.5 Dimensioning/Thermal resistance Flow calculations shall be carried out in accordance with EN 13084-1. The thermal resistance shall be calculated on the basis of EN 13084-1:2007, A.2.2. NOTE Dimensions related to stability are calculated on the basis of 4.2.1.
4.2.6 Thermal shock resistance Generally, thermal shock resistance is not applicable to steel because rapid changes of temperature have no significant effect on steel chimneys and liners. For specific applications (such as turbines) thermal shock may be relevant and expert advice should be sought. SIST EN 13084-7:2013
EN 13084-7:2012 (E) 7 4.2.7 Resistance to freeze-thaw Resistance to freeze-thaw is not relevant to steel chimneys and steel liners. 4.3 Durability The class of chemical attack shall be declared in accordance with EN 13084-1. Durability to chemical attack is covered by use of materials shown in Table 4. Other steels may be used provided their durability to the relevant chemical attack is demonstrated. Durability may also be achieved by other means including additional coatings and linings.
4.4 Dangerous substances National regulations on dangerous substances may require verification and declaration on release, and sometimes content, when construction products covered by this standard are placed on those markets. In the absence of European harmonised test methods, verification and declaration on release/content should be carried out, taking into account national provisions in the place of use. NOTE An informative database covering European and national provisions on dangerous substances is available at the Construction web site on EUROPA accessed through: http://ec.europa.eu/enterprise/construction/cpd-ds/. 5 Materials 5.1 Steels The steel chimneys or liners shall be made of the steels listed in Tables 1 to 4. In addition, other steels may be used in accordance with EN 13084-6:2004, Clause 4.
SIST EN 13084-7:2013
EN 13084-7:2012 (E) 8 Table 1 — Characteristic values of yield stress in relation to temperature (fy,k in N/mm²) Type of steel Temperature of the material (°C) Short name Material20 50 100150200250300350400450
500 550600650700750800850900950 1000 EN10025-2
S235JR 1.0038 235 235 190175160140120
S235J2 1.0117 235 235 190175160140120
S275JR 1.0044 275 275 215200185165145125104
S275J2 1.0145 275 275 215200185165145125104
S355JR 1.0045 355 355 260245230210190
S355J2 1.0577 355 355 260245230210190
Usable forWindshield and liner
EN10025-5S235JOW 1.8958 235 235 190175160140120
S235J2W 1.8961 235 235 190175160140120
S355J2WP 1.8946 355 355 260245230210190
S355J0W 1.8959 355 355 26024523021019017014012085
Usable forWindshield and linerLiners only
EN10028-2P265GH 1.0425 255 247 23221519718116615414580
16 Mo 3 1.5415 270 268 259245228209190172156145 139
13 CrMo 45 1.7335 290 285 275260243226209194180169 159 76 10 CrMo 9 10 1.7380 300 270 249238232227221211198185 173 8344 Usable forwindshield and liner EN10088-2X5CrNi 18 10 1.4301 195 177 157142127118110104989592 90 X2CrNi 18-9 1.4307 200
14713211810810094898581 80 X2CrNiMoN 22-5-31.4462 460
360355315300
X2CrTiNb 18 1.4509 230
230220210205200180
X6CrNiTi 18 101.4541 205 190 176167157147136130125121 119118 X6CrNiMoTi17 12 21.4571 215 202 185177167157145140135131 129127 X2CrNiMo 17 12 21.4404 190 182 166152137127118113108103 10098 X2CrNiMo 18 14 31.4435 190 182 166152137127118113108103 10098 X1NiCrMoCu 25 20 51.4539 220 190 175165155145135130125120 110105 Usable forWindshield and linerLiners only EN10095X8CrNiTi18-101.4878 205 190 176167157147136130125121 11911811077453015 X15CrNiSi25-21.4841 230 190 176167157147136130125121 1201121057750372316106 3 X15CrNiSi20-121.4828 230 190 176167157147136130125121 120120120855035201410 Usable forWindshield and linerliners only Values given are for material up to 40 mm thickness. If cold-formed materials are used the above values shall still be applied. If there is no value the material is not applicable.SIST EN 13084-7:2013
EN 13084-7:2012 (E) 9 Table 2 — Characteristic values of E-Modulus (105 N/mm²) in relation to temperature Type of steel Temperature of the material (°C)Short name Material 20150250350450500550
600 6507007508008509009501000EN 10025-2
2,1 2,05 2,0 1,92
S235JR 1.0038
S235J2 1.0117
S275JR 1.0044
S275J2 1.0145
S355JR 1.0045
S355J2 1.0577
EN 10025-5 S235JOW 1.8958
S235J2W 1.8961
S355J2WP 1.8946
S355JOW 1.8959
EN 10028-2 P265GH 1.0425 2,1 2,05 2,0 1,92 1,84 1,8
16 Mo 3 1.5415
13 CrMo 45 1.7335
10 CrMo 9 10 1.7380
EN 10088-2 X5CrNi 18 10 1.4301 1,7 2,0 a 1,64 1,94 a 1,56 1,86 a 1,49 1,79 a 1,42 1,72 a 1,3851,685a1,35 1,65 a 1,3151,615a
X2CrNi 18-9 1.4307
X2CrNiMoN 22-5-3 1.4462
X2CrTiNb 18 1.4509
X6CrNiTi 18 10 1.4541
X6CrNiMoTi17 12 2 1.4571
X2CrNiMo 17 12 2 1.4404
X2CrNiMo 18 14 3 1.4435
X1NiCrMoCu 25 20 5 1.4539
EN 10095 X8CrNiTi18-10 1.4878 1,7 2,0 a 1,64 1,94 a1,56 1,86 a1,49 1,79 a1,42 1,72 a1,3851,685a1,35 1,65 a 1,3151,615a
X15CrNiSi25-2 1.4841
X15CrNiSi20-12 1.4828
a For calculating compression stresses. SIST EN 13084-7:2013
EN 13084-7:2012 (E) 10
Table 3 — Characteristic values of thermal expansion coefficients (10-6 K-1) between 20 °C and different temperatures Type of steel Temperature of the material up to ° C
Short nameMaterial 100200300400
500600700 8009001000EN 10025-2
1.0036
12,0
12,1
12,9
13,5
S235JR 1.0038
S235J2 1.0117
S275JR 1.0044
S275J2 1.0145
S355JR 1.0045
S355J2 1.0577
EN 10025-5 S235JOW 1.8958
12,0
12,1
12,9
13,5
13,9
S235J2W 1.8961
S355J2WP 1.8946
S355JOW 1.8959
EN 10028-2 P265GH 1.0425
11,1
12,1
12,9
13,5
13,9
16 Mo 3 1.5415
13 CrMo 45 1.7335
10 CrMo 9 10 1.7380
EN 10088-2 X5CrNi 18 10 1.4301 16,0 16,5 17,0 17,5 18,0
X2CrNi 18-9 1.4307 16,0 16,5 17,0 18,0 18,0
X2CrNiMoN 22-5-3 1.4462 13,0 13,5 14,0
X2CrTiNb 18 1.4509 10,0 10,0 10,5 10,5
X6CrNiTi 18 10 1.4541 16,0 16,5 17,0 17,5 18,0
X6CrNiMoTi17 12 2 1.4571 16,5 17,5 18,0 18,5 19,0
X2CrNiMo 17 12 2 1.4404 16,0 16,5 17,0 17,5 18,0
X2CrNiMo 18 14 3 1.4435 16,0 16,5 17,0 17,5 18,0
X1NiCrMoCu 25 20 5 1.4539 15,8 16,1 16,5 16,9 17,3
EN 10095 X8CrNiTi18-10 1.4878
17,0
18,0
18,5
19,0
X15CrNiSi25-2 1.4841
15,5
17,0
17,5
18,0
19,0X15CrNiSi20-12 1.4828
16,5
17,5
18,0
18,5
19,5The values can be interpolated linearly.
SIST EN 13084-7:2013
EN 13084-7:2012 (E) 11 Table 4 — Corrosion allowance of surfaces in contact with flue gases
Type of steel
Degree of chemical attack in accordance with EN 13084-1 First ten years Each additional 10 year period
Short name Material Condensate resistance Low L Medium M High H very high V Low L Medium M High H very high V EN 10025-2
D 1,0 2,5 N N 1,0 1,5 N N S235JR 1.0038 S235J2 1.0117 S275JR 1.0044 S275J2 1.0145 S355JR 1.0045 S355J2 1.0577 EN 10025-5 S235JOW 1.8958 D 1,0 2,5 N N 1,0 1,5 N N S235J2W 1.8961 S355J2WP 1.8946 S355JOW 1.8959 EN 10028-2 P265GH 1.0425 D 1,0 2,5 N N 1,0 1,5 N N 16 Mo 3 1.5415 13 CrMo 45 1.7335 10 CrMo 9 10 1.7380 EN 10088-2 X5CrNi 18 10 1.4301 D 0,0 0,75 1,25 N 0,0 0,75 1,25 N X2CrNi 18-9 1.4307 D 0,0 0,75 1,25 N 0,0 0,75 1,25 N X2CrNiMoN 22-5-3 1.4462 W 0,0 0,25 0,75 N 0,0 0,25 0,75 N X2CrTiNb 18 1.4509 D 0,0 1,0 1,5 N 0,0 1,0 1,5 N X6CrNiTi 18 10 1.4541 D 0,0 0,75 1,25 N 0,0 0,75 1,25 N X6CrNiMoTi17 12 2 1.4571 W 0,0 0,25 0,75 N 0,0 0,25 0,75 N X2CrNiMo 17 12 2 1.4404 W 0,0 0,25 0,75 N 0,0 0,25 0,75 N X2CrNiMo 18 14 3 1.4435 W 0,0 0,25 0,75 N 0,0 0,25 0,75 N X1NiCrMoCu 25 20 5 1.4539 W 0,0 0,25 0,5 1,5 0,0 0,25 0,5 1,5 EN
10095 X8CrNiTi18-10 1.4878 D 0,0 0,75 1,5 N 0,0 0,75 1,5 N X15CrNiSi25-2 1.4841 X15CrNiSi20-12 1.4828 N not permitted D useable in dry condition (higher than water dew point)
W useable in wet and/or dry condition (below water dew point) NOTE
For acid dew point see EN 13084-1.
SIST EN 13084-7:2013
EN 13084-7:2012 (E) 12
5.2 Coating Coating systems shall be in accordance with EN 13084-1, EN 13084-6 and EN 1993-3-2. All coatings shall be applied according to the instructions of the material manufacturers.
5.3 Insulation The insulating material shall be in accordance with the requirements given in EN 13084-1:2007, 4.4. 5.4 Cladding Cladding materials shall be suitable for the environment to which they are exposed. 6 Construction 6.1 Tolerances Tolerances shall comply with EN 13084-6:2004, 7.1. The minimum gauge length shall be 150 mm (λg of EN 1993-1-6). NOTE This is a deviation from λg of EN 1993-1-6. 6.2 Welding The manufacturer of liners shall be in accordance with EN 1090-2, EXC 2. The manufacturer of single wall chimneys shall be in accordance with EN 1090-2, EXC 3. All butt welds shall be full penetration and continuous. All welding on liners shall be at least in accordance with EN ISO 5817, Quality level “D”. Larger long pores are not permitted. All welding on single wall chimneys shall be at least in accordance with EN ISO 5817, Quality level “C”. 6.3 Construction details Where apertures are cut in the shell plates, the corners shall be radiused in accordance with EN 13084-6. Flanges and opening reinforcement to the liner shall be continuously welded.
The liner shall be continuously welded to its base plate and this in turn to any gussets or reinforcing components. Stiffening rings can have intermittent welding if permitted by the design. However, crevices exposed to weather or flue gases shall be sealed against corrosion. 6.4 Insulation Insulation shall be adequately supported to stop it from slipping and/or sagging. This can be achieved by pinning and/or banding.
SIST EN 13084-7:2013
EN 13084-7:2012 (E) 13 Where insulation is not covered by cladding, it shall be covered with wire mesh, or cloth, or aluminium foil etc. Insulation shall be applied in such a manner to minimise any gaps at the seams. If insulation is applied in two or more layers, all joints shall be staggered to minimise heat-loss. 6.5 Cladding Cladding shall be manufactured and fitted in such a manner as to allow for differentials in thermal expansions and prevent the ingress of weather. Cladding shall be adequately supported and fixed by riveting or screwing. 7 Evaluation of conformity 7.1 General 7.1.1 Introduction The compliance of cylindrical steel fabrications with the requirements of this standard and with the stated values (including classes) shall be demonstrated by: Initial type testing, Factory production control by the manufacturer, including product assessment as described in 4.2 and 4.3.
7.1.2 Initial type testing Initial type testing shall be performed to show conformity with this standard. Tests previously performed in accordance with the provisions of this standard (same product, same characteristic(s), test method, sampling procedure, system of attestation of conformity, etc.) may be taken into account.
NOTE Component products CE marked in accordance with appropriate harmonised European specifications may be presumed to have the performances stated with the CE marking, although this does not replace the responsibility of the chimney designer to ensure that the chimney as a whole is correctly designed and its component products have the necessary performance values to meet the design. All characteristics listed above in Clauses 4 and 5 shall be subject to Initial type testing, i.e. checking of calculations and drawings, raw materials, welding procedures and qualification of welders, resistance to fire, gas tightness/leakage, flow resistance, dimensioning/thermal resistance, thermal shock resistance, flexural tensile strength, compressive strength, resistance to freeze-thaw and durability. 7.1.3 Further type testing Whenever a change occurs in the chimney, the raw material or the supplier of the components, or the production process, which would change significantly one or more of the characteristics, the type tests shall be repeated for the appropriate characteristic(s). 7.2 Factory production control 7.2.1 General The manufacturer shall establis
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