Chimneys - Clay/ceramic flue liners - Part 2: Flue liners operating under wet conditions - Requirements and test methods

This European Standard is a product standard for clay/ceramic flue liners operating under wet conditions with solid walls or walls with vertical perforations for use in the construction of multiwall chimneys and flue pipes which serve to convey products of combustion from fireplaces or heating appliances to the outside atmosphere by negative or positive pressure. It includes the flue liners used for domestic and industrial chimneys which are not structurally independent (free-standing). This European Standard specifies the performance requirements for factory made flue liners and chimney fittings. Testing including thermal testing with or without insulation, marking and inspection are covered by this standard. Flue liners that are specified to this standard will meet the requirements of EN 1457-1 with the same working temperature, pressure, designation and soot fire resistance.

Abgasanlagen - Keramik-Innenrohre - Teil 2: Innenrohre für den Nassbetrieb - Anforderungen und Prüfungen

Diese Europäische Norm ist eine Produktnorm für Keramik-Innenrohre mit massiven oder vertikal gelochten Wandungen, die in mehrschaligen Abgasanlagen unter feuchten Bedingungen verwendet werden und die dazu dienen, Verbrennungsprodukte von Feuerstätten oder Wärmeerzeuger durch Über- oder Unterdruck an die Außenluft abzuleiten. Diese Norm behandelt Innenrohre für Haus- und Industrieabgasanlagen, die nicht freistehend sind. Diese Norm enthält Festlegungen der Leistungsanforderungen an werkmäßig hergestellte Innenrohre und Formstücke. Sie enthält ferner die Anforderungen an die thermische Prüfung mit oder ohne Wärmedämmung, an die Kennzeichnung und die Qualitätskontrolle. Innenrohre, die nach der vorliegenden Norm festgelegt sind, entsprechen den Anforderungen von EN 1457-1 bei gleichen Bedingungen für Betriebstemperatur, Druck, Bezeichnung und Rußbrandbeständigkeit.

Conduits de fumée - Conduits intérieurs en terre cuite/céramique - Partie 2: Exigences et méthodes d'essai pour utilisation en conditions humides

La présente Norme européenne est une norme de produit relative aux conduits intérieurs en terre cuite/céramique
fonctionnant dans des conditions humides munis de parois pleines ou de parois à alvéoles verticales, utilisés dans
la construction de conduits de fumée à parois multiples et de conduits de raccordement destinés à évacuer dans
l’atmosphère, sous une pression négative ou positive, les produits de combustion produits par les foyers de
cheminées ou les générateurs de chaleur. La présente Norme européenne comprend les conduits intérieurs à
usage domestique et les conduits de fumée industriels qui ne sont pas structurellement indépendants
(auto-stables). La présente Norme européenne spécifie les exigences de performance des conduits intérieurs et
des raccords fabriqués en usine. Les essais, comprenant les essais de choc thermique avec ou sans isolation, le
marquage et le contrôle sont couverts par la présente norme. Les conduits intérieurs qui sont spécifiés dans la
présente norme répondent aux exigences de l’EN 1457-1 avec la même température de fonctionnement, pression,
désignation et résistance au feu de cheminée.

Dimniki - Keramične tuljave - 2. del: Tuljave za delovanje v vlažnih razmerah - Zahteve in preskusne metode

Ta evropski standard je standard za izdelek za keramične tuljave za delovanje v vlažnih razmerah s trdnimi stenami ali stenami z navpičnimi perforacijami, ki se uporabljajo pri gradnji večslojnih dimnikov in dimniških priključkov, ki so namenjeni odvajanju produktov gorenja iz kaminov ali grelnih naprav v ozračje po principu negativnega ali pozitivnega tlaka. Vključuje tuljave, ki se uporabljajo za dimnike v gospodinjstvih in industriji in niso strukturno neodvisni (samostoječi). Ta standard določa zahteve glede zmogljivosti za tovarniško izdelane tuljave in fitinge za dimnike. Zajema preskušanje, vključno s toplotnim preskušanjem z izolacijo ali brez nje, označevanje in nadzor. Tuljave iz tega standarda izpolnjujejo zahteve standarda EN 1457-1 z enako delovno temperaturo, tlakom, označevanjem in odpornostjo proti požaru saj.

General Information

Status
Published
Publication Date
24-Jan-2012
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
14-Feb-2012

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Abgasanlagen - Keramik-Innenrohre - Teil 2: Innenrohre für Nassbetrieb - Anforderungen und PrüfungenConduits de fumée - Conduits intérieurs en terre cuite/céramique - Partie 2 : Exigences et méthodes d'essai pour utilisation en conditions humidesChimneys - Clay ceramic flue liners - Part 2: Flue liners operating under wet conditions - Requirements and test methods91.060.40Dimniki, jaški, kanaliChimneys, shafts, ductsICS:Ta slovenski standard je istoveten z:EN 1457-2:2012SIST EN 1457-2:2012en,fr,de01-maj-2012SIST EN 1457-2:2012SLOVENSKI

STANDARDSIST EN 1457:1999/A1:2003/AC:2007SIST EN 1457:1999/AC:2006SIST EN 1457:1999SIST EN 1457:1999/A1:20031DGRPHãþD

SIST EN 1457-2:2012
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1457-2
January 2012 ICS 91.060.40 Supersedes EN 1457:1999English Version

Chimneys - Clay/ceramic flue liners - Part 2: Flue liners operating under wet conditions - Requirements and test methods

Conduits de fumée - Conduits intérieurs en terre cuite/céramique - Partie 2: Exigences et méthodes d'essai pour utilisation en conditions humides

Abgasanlagen - Keramik-Innenrohre - Teil 2: Innenrohre für den Nassbetrieb - Anforderungen und Prüfungen This European Standard was approved by CEN on 16 December 2011.

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, 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 1457-2:2012: ESIST EN 1457-2:2012

EN 1457-2:2012 (E) 2 Contents Page Foreword ..............................................................................................................................................................51Scope ......................................................................................................................................................62Normative references ............................................................................................................................63Terms and definitions ...........................................................................................................................64Flue liners and openings ......................................................................................................................84.1Flue liner cross-sections ......................................................................................................................84.2Inspection openings and chimney junctions ......................................................................................95Types of flue liner ............................................................................................................................... 106Materials .............................................................................................................................................. 107Tolerances on dimensions ................................................................................................................ 117.1Transverse dimension ........................................................................................................................ 117.2Height ................................................................................................................................................... 117.3Angle of curvature .............................................................................................................................. 117.4Straightness ........................................................................................................................................ 117.5Squareness of ends ............................................................................................................................ 117.6Deviation from shape of cross section ............................................................................................ 117.7Geometry of joints .............................................................................................................................. 118Proof load ............................................................................................................................................ 118.1Straight flue liners .............................................................................................................................. 118.2Curved flue liners................................................................................................................................ 118.3Minimum load for inspection opening sections .............................................................................. 129Gas tightness/leakage, thermal shock resistance and soot fire resistance for straight flue liners .................................................................................................................................................... 129.1Initial test ............................................................................................................................................. 129.2Final gas tightness after testing ........................................................................................................ 139.2.1General ................................................................................................................................................. 139.2.2Final gas tightness after sootfire testing ......................................................................................... 139.2.3Final gas tightness after thermal shock testing .............................................................................. 1310Durability ............................................................................................................................................. 1410.1Corrosion resistance .......................................................................................................................... 1410.2Freeze/Thaw resistance ..................................................................................................................... 1411Water absorption and bulk density ................................................................................................... 1411.1General ................................................................................................................................................. 1411.2Water absorption ................................................................................................................................ 1411.3Bulk density ......................................................................................................................................... 1412Abrasion resistance ........................................................................................................................... 1413Condensate resistance and flow resistance .................................................................................... 1413.1Condensate resistance ...................................................................................................................... 1413.2Flow resistance ................................................................................................................................... 1514Thermal resistance ............................................................................................................................. 1515Evaluation of conformity .................................................................................................................... 1515.1General ................................................................................................................................................. 1515.2Initial type testing ............................................................................................................................... 1515.3Further type tests................................................................................................................................ 15SIST EN 1457-2:2012

EN 1457-2:2012 (E) 3 15.4Factory production control ................................................................................................................ 1616Test methods ....................................................................................................................................... 1616.1Size........................................................................................................................................................ 1616.2Height.................................................................................................................................................... 1616.3Angle of curvature ............................................................................................................................... 1716.4Straightness ......................................................................................................................................... 1716.5Squareness of ends ............................................................................................................................ 1716.6Deviation from shape of cross-section ............................................................................................. 1816.7Proof load ............................................................................................................................................. 2016.7.1Test specimen ...................................................................................................................................... 2016.7.2Testing equipment ............................................................................................................................... 2016.7.3Test procedure ..................................................................................................................................... 2016.8Thermal testing .................................................................................................................................... 2116.8.1Test flue ................................................................................................................................................ 2116.8.2Test equipment .................................................................................................................................... 2116.8.3Assembly of test flue .......................................................................................................................... 2316.8.4Thermal conditioning .......................................................................................................................... 2316.8.5Measurement of leakage rate ............................................................................................................. 2416.8.6Expression of results .......................................................................................................................... 2416.9Corrosion resistance........................................................................................................................... 2416.9.1Test specimens .................................................................................................................................... 2416.9.2Test equipment .................................................................................................................................... 2516.9.3Test procedure ..................................................................................................................................... 2516.9.4Expression of results .......................................................................................................................... 2616.10Water absorption ................................................................................................................................. 2616.10.1Test specimen ...................................................................................................................................... 2616.10.2Test equipment .................................................................................................................................... 2616.10.3Test procedure ..................................................................................................................................... 2616.10.4Expression of results .......................................................................................................................... 2616.11Bulk density ......................................................................................................................................... 2616.11.1Test specimen ...................................................................................................................................... 2616.11.2Test equipment .................................................................................................................................... 2716.11.3Test procedure ..................................................................................................................................... 2716.11.4Expression of results .......................................................................................................................... 2716.12Abrasion resistance ............................................................................................................................ 2716.12.1Test flue ................................................................................................................................................ 2716.12.2Test equipment .................................................................................................................................... 2716.12.3Test procedure ..................................................................................................................................... 2816.12.4Expression of results .......................................................................................................................... 2816.13Test method for the determination of water and vapour flow (indirect method) .......................... 2916.13.1Test installation ................................................................................................................................... 2916.13.2Test sample .......................................................................................................................................... 3016.13.3Position of measuring points and records ....................................................................................... 3016.13.4Test procedure ..................................................................................................................................... 3116.13.5Results .................................................................................................................................................. 3216.13.6Measuring equipment — Composition, measuring range, uncertainty ......................................... 3216.13.7Test rig .................................................................................................................................................. 3317Designation .......................................................................................................................................... 3418Marking ................................................................................................................................................. 35Annex A (normative)

Sampling procedures for an AQL of 10 % and inspection level S2 ........................ 36A.1Acceptability determination ............................................................................................................... 36A.2Normal inspection ............................................................................................................................... 36A.3Normal to reduced inspection ............................................................................................................ 37A.4Reduced to normal inspection ........................................................................................................... 38A.5Tightened inspection .......................................................................................................................... 38A.6Tightened to normal inspection ......................................................................................................... 38A.7Discontinuation of inspection ............................................................................................................ 39SIST EN 1457-2:2012

EN 1457-2:2012 (E) 4 Annex B (normative)

Thermal resistance ...................................................................................................... 40B.1Method 1: simplified calculation for flue liners without cavities ................................................... 40B.2Method 2: thermal resistance of flue liners with or without cavities ............................................ 40B.3Method Approximate thermal resistance values ............................................................................. 45Annex C (normative)

Measurement of the coefficient of friction of chimneys .......................................... 47Annex ZA (informative)

Clauses of this European Standard addressing the provisions of the EU Construction Products Directive ....................................................................................................... 49ZA.1Scope and relevant characteristics .................................................................................................. 49ZA.2Procedure of attestation of conformity of clay/ceramic flue liners and fittings .......................... 50ZA.3CE Marking and labelling ................................................................................................................... 52Bibliography ..................................................................................................................................................... 55 SIST EN 1457-2:2012

EN 1457-2:2012 (E) 5 Foreword This document (EN 1457-2:2012) has been prepared by Technical Committee CEN/TC 166 “Chimneys”, the secretariat of which is held by ASI. 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 July 2012, and conflicting national standards shall be withdrawn at the latest by July 2012. 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 1457:1999. 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. EN 1457 is made of two parts:  EN 1457-1, Chimney

Clay/ceramic flue liners — Part 1: Flue liners operating under dry conditions — Requirements and test methods;  EN 1457-2, Chimney — Clay/ceramic flue liners — Part 2: Flue liners operating under wet conditions — Requirements and test methods. The main changes with respect to the previous edition are:

EN 1457 has been split in 2 parts: EN 1457-2 is a product standard for clay/ceramic flue liners operating under wet conditions. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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 Turkey and the United Kingdom.

SIST EN 1457-2:2012

EN 1457-2:2012 (E) 6 1 Scope This European Standard is a product standard for clay/ceramic flue liners operating under wet conditions with solid walls or walls with vertical perforations for use in the construction of multiwall chimneys and flue pipes which serve to convey products of combustion from fireplaces or heating appliances to the outside atmosphere by negative or positive pressure. It includes the flue liners used for domestic and industrial chimneys which are not structurally independent (free-standing). This European Standard specifies the performance requirements for factory made flue liners and chimney fittings. Testing including thermal testing with or without insulation, marking and inspection are covered by this standard. Flue liners that are specified to this standard will meet the requirements of EN 1457-1 with the same working temperature, pressure, designation and soot fire resistance. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 312, Particleboards — Specifications

EN 1443:2003, Chimneys — General requirements EN 10088-1, Stainless steels — Part 1: List of stainless steels EN 13384-1:2002+A2:2008, Chimneys — Thermal and fluid dynamic calculation methods — Part 1: Chimneys serving one appliance EN 14297:2004, Chimneys — Freeze-thaw resistance test method for chimney products EN ISO 6946, Building components and building elements — Thermal resistance and thermal transmittance — Calculation method (ISO 6946) EN ISO 7500-1, Metallic materials — Verification of static uniaxial testing machines — Part 1: Tension/compression testing machines — Verification and calibration of the force-measuring system (ISO 7500-1) ISO 2859-1, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1443:2003 and the following apply. 3.1 nominal size numerical designation of size which is a convenient round number equal to or approximately equal to either: a) the internal diameter of circular flue liners; b) the internal width of square flue liners; c) the internal width and breadth of the cross section of rectangular flue liners NOTE The nominal length is expressed in millimetres. SIST EN 1457-2:2012

EN 1457-2:2012 (E) 7 3.2 nominal height numerical designation of the internal height in millimetres of a straight flue liner which is a convenient round number approximately equal to the internal height of the flue liner NOTE See Figure 1.

Key 1 internal height Figure 1 — Internal height 3.3 nominal angle of curvature angle subtended by a curved flue liner at the centre of the curve NOTE 1 The nominal angle is expressed in degrees. NOTE 2 See Figure 2.

Key 1 angle of curvature 2 curved flue liner Figure 2 — Angle of curvature 3.4 wet operating condition condition when the chimney is designed to operate normally with the temperature of the inner surface of the flue liner at and below the water dew point SIST EN 1457-2:2012

EN 1457-2:2012 (E) 8 3.5 dry operating condition condition when the chimney is designed to operate normally with the temperature of the inner surface of the flue liner above the water dew point 4 Flue liners and openings 4.1 Flue liner cross-sections Flue liners shall be either: a) circular or square in cross-section with rebated or spigot and socket ends; b) square or rectangular in cross-section with rebated ends and rounded internal corners; c) circular, square or rectangular in cross-section with butt joints and jointed with a sleeve; d) circular or square in cross-section with taper joints.

a) Square b) Rectangular c) Circular d) Wall with vertical perforations Figure 3 — Examples of cross-section configuration SIST EN 1457-2:2012

EN 1457-2:2012 (E) 9

a) Rebated b) Spigot & socket c) Sleeve d) Tapered Figure 4 — Joint configuration 4.2 Inspection openings and chimney junctions Inspection openings are used for inspection and cleaning of the inner liners of chimneys and for soot removal and shall meet the requirements of flue liners as appropriate. All inspection openings shall have a door.

The inspection opening shall have a door with a separate humidity barrier or have two sheets. Chimney junctions are used to connect flues from heat appliances to chimneys. Chimney junctions are purpose-made tee-pieces or inner liner sections with an opening to which branches are fitted. The branch angles can be 45° to 95° (α in Figure 5). At the position of junctions, the outer walls have corresponding openings. Chimney junctions should have the same cross-sectional area as the flue liner. Reductions and expansions are acceptable provided that the resistance to the exhaust gases is not increased.

Figure 5 — Examples of inspection openings and chimney junctions SIST EN 1457-2:2012

EN 1457-2:2012 (E) 10 5 Types of flue liner There are four main types of clay/ceramic flue liner dependent on working temperature, with sub-classes dependent on whether the flue liners are to be used in chimneys designed to work under negative or positive pressure or are to have soot fire resistance. A non exhaustive list abbreviated designations for flue liners according temperature, pressure, soot fire resistance and condensate resistance is given in Table 1. The suitability of each type of flue liner to be used in chimneys designed to operate under negative or positive pressure and wet conditions is also given. NOTE A flue liner can be designated in one or more types provided that it complies with the appropriate requirements for each type. Table 1 — Types of clay/ceramic flue liners, conditions of use, air test pressures and maximum leakage rates after thermal testing for operating under wet conditions Types of flue liner Temperature Pressure Soot fire resistance Test pressure Permitted leakage rate

class class class Pa m3 s-1 m-2·10-3 A3 N2 600 Negative Yes (G) 20 3 A3 N1 600 Negative Yes (G) 40 2 A3 P1 600 Positive Yes (G) 200 0,006 A4 N2 600 Negative No (O) 20 3 A4 N1 600 Negative No (O) 40 2 A4 P1 600 Positive No (O) 200 0,006 B3 N2 400 Negative Yes (G) 20 3 B3 N1 400 Negative Yes (G) 40 2 B3 P1 400 Positive Yes (G) 200 0,006 B4 N2 400 Negative No (O) 20 3 B4 N1 400 Negative No (O) 40 2 B4 P1 400 Positive No (O) 200 0,006 C4 N2 300 Negative No (O) 20 3 C4 N1 300 Negative No (O) 40 2 C4 P1 300 Positive No (O) 200 0,006 D4 N2 200 Negative No (O) 20 3 D4 N1 200 Negative No (O) 40 2 D4 P1 200 Positive No (O) 200 0,006

6 Materials Flue liners shall be manufactured from suitable clay/ceramic material which, when fired, meet the performance requirements given in this standard. Flue liners may be unglazed or glazed on the interior and/or exterior. When glazed, they need not be glazed on the jointing surfaces. SIST EN 1457-2:2012

EN 1457-2:2012 (E) 11 7 Tolerances on dimensions 7.1 Transverse dimension When tested in accordance with 16.1, the internal diameter of circular flue liners measured on any diameter shall not deviate more than ± 3 % of the manufacturer’s stated nominal internal diameter. The internal width or breadth of square or rectangular section flue liners shall not deviate more than ± 3 % of the manufacturer's stated nominal internal length of the side. 7.2 Height When tested in accordance with 16.2, the height of a flue liner shall not deviate more than ± 3 % on the manufacturer’s stated nominal height subject to a maximum value of 20 mm. 7.3 Angle of curvature When tested in accordance with 16.3, the angle of curvature of curved flue liners shall not deviate more than ± 5° on the manufacturer’s stated nominal curvature. 7.4 Straightness When tested in accordance with 16.4, the permissible deviation from straightness of straight flue liners shall be 1 % of the test length. 7.5 Squareness of ends When tested in accordance with 16.5, the permissible deviation from square of the ends of straight flue liners, shall be not greater than an angle of slope 30 mm/m. 7.6 Deviation from shape of cross section When tested in accordance with 16.6, the permissible deviation from square of the angles of, and flatness of walls for square or rectangular shape straight flue liners, shall be not greater than 5 % of the manufacturer’s stated nominal internal width or breadth. 7.7 Geometry of joints The design and dimensions of the joints shall be

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