kSIST FprEN 1457-1:2018
(Main)Chimney - Clay/ceramic flue liners - Part 1: Flue liners operating under dry conditions - Requirements and test methods
Chimney - Clay/ceramic flue liners - Part 1: Flue liners operating under dry conditions - Requirements and test methods
This European Standard is a product standard for clay/ceramic flue liners operating under dry 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. This part does not cover flue liners operating under wet conditions.
Abgasanlagen - Keramik-Innenrohre - Teil 1: Innenrohre für den Trockenbetrieb - Anforderungen und Prüfungen
Conduits de cheminée - Conduits intérieurs en terre cuite/céramique - Partie 1 : Exigences et méthodes d'essai pour utilisation en conditions sèches
Dimovodne naprave - Keramične tuljave - 1. del: Tuljave za delovanje v suhih razmerah - Zahteve in preskusne metode TC: Dimovodne naprave - Keramične dimovodne tuljave - 1. del: Dimovodne tuljave za suhe obratovalne pogoje - Zahteve in preskusne metode
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Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 1457-1:2016
01-november-2016
'LPRYRGQHQDSUDYH.HUDPLþQHWXOMDYHGHO 7XOMDYH]DGHORYDQMHYVXKLK
UD]PHUDK=DKWHYHLQSUHVNXVQHPHWRGH
Chimney - Clay/ceramic flue liners - Part 1: Flue liners operating under dry conditions -
Requirements and test methods
Abgasanlagen - Keramik-Innenrohre - Teil 1: Innenrohre für den Trockenbetrieb -
Anforderungen und Prüfungen
Conduits de cheminée - Conduits intérieurs en terre cuite/céramique - Partie 1 :
Exigences et méthodes d'essai pour utilisation en conditions sèches
Ta slovenski standard je istoveten z: prEN 1457-1
ICS:
91.060.40 Dimniki, jaški, kanali Chimneys, shafts, ducts
oSIST prEN 1457-1:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 1457-1:2016
DRAFT
EUROPEAN STANDARD
prEN 1457-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2016
ICS 91.060.40 Will supersede EN 1457-1:2012
English Version
Chimney - Clay/ceramic flue liners - Part 1: Flue liners
operating under dry conditions - Requirements and test
methods
Conduits de cheminée - Conduits intérieurs en terre Abgasanlagen - Keramik-innenrohre - Teil 1:
cuite/céramique - Partie 1 : Prescriptions et méthodes Innenrohre für Trockenbetrieb - Anforderungen und
d'essai pour utilisation en conditions sèches Prüfungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 166.
If this draft becomes a European Standard, 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.
This draft European Standard 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-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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
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
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1457-1:2016 E
worldwide for CEN national Members.
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Contents Page
European foreword . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Flue liners and openings . 8
4.1 Flue liner cross-sections . 8
4.2 Inspection openings and chimney junctions . 9
5 Types of flue liner . 9
6 Materials . 10
7 Tolerances on dimensions . 10
7.1 Transverse dimension . 10
7.2 Height . 10
7.3 Angle of curvature. 11
7.4 Straightness . 11
7.5 Squareness of ends . 11
7.6 Deviation from shape of cross section . 11
7.7 Geometry of joints . 11
8 Proof load . 11
8.1 Straight flue liners . 11
8.2 Curved flue liners . 11
8.3 Minimum load for inspection opening sections . 11
9 Gas tightness /leakage, thermal resistance and soot fire resistance for straight flue
liners . 12
9.1 Initial test . 12
9.2 Final gas tightness after testing . 12
9.2.1 General . 12
9.2.2 Final gas tightness after sootfire testing . 12
9.2.3 Final gas tightness after thermal shock testing . 12
10 Durability . 13
10.1 Corrosion resistance . 13
10.2 Freeze/Thaw resistance . 13
11 Water absorption and bulk density . 13
11.1 General . 13
11.2 Water absorption . 13
11.3 Bulk density . 14
12 Abrasion resistance . 14
13 Flow resistance . 14
14 Thermal resistance . 14
15 Assessment and verification of constancy of performance – AVCP. 14
15.1 General . 14
15.2 Type testing . 14
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15.2.1 General . 14
15.2.2 Test samples, testing and compliance criteria . 15
15.2.3 Test reports . 16
15.2.4 Shared other party results . 16
15.2.5 Cascading determination of the product type results . 17
15.3 Factory production control (FPC) . 18
15.3.1 General . 18
15.3.2 Requirements . 18
15.3.3 Product specific requirements . 21
15.3.4 Initial inspection of factory and of FPC . 22
15.3.5 Continuous surveillance of FPC . 22
15.3.6 Procedure for modifications . 23
15.3.7 One-off products, pre-production products (e.g. prototypes) and products produced
in very low quantity . 23
16 Test methods . 24
16.1 Size . 24
16.2 Height . 24
16.3 Angle of curvature . 24
16.4 Straightness . 24
16.5 Squareness of ends . 25
16.6 Deviation from shape of cross-section . 26
16.7 Proof load . 28
16.7.1 Test specimen . 28
16.7.2 Testing equipment . 28
16.7.3 Test procedure . 28
16.8 Thermal testing . 29
16.8.1 Test flue . 29
16.8.2 Test equipment . 30
16.8.3 Assembly of test flue . 31
16.8.4 Thermal conditioning . 31
16.8.5 Measurement of leakage rate . 32
16.8.6 Expression of results . 32
16.9 Corrosion resistance. 32
16.9.1 Test specimens . 32
16.9.2 Test equipment . 33
16.9.3 Test procedure . 33
16.9.4 Expression of results . 34
16.10 Water absorption . 34
16.10.1 Test specimen . 34
16.10.2 Test equipment . 34
16.10.3 Test procedure . 34
16.10.4 Expression of results . 34
16.11 Bulk density . 34
16.11.1 Test specimen . 34
16.11.2 Test procedure . 35
16.11.3 Expression of results . 35
16.12 Abrasion resistance . 35
16.12.1 Test flue . 35
16.12.2 Test equipment . 35
16.12.3 Test procedure . 36
16.12.4 Expression of results . 36
17 Designation . 37
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18 Marking . 38
19 Release of dangerous substances . 38
Annex A (normative) Sampling procedures for an AQL of 10 % and inspection level S2 . 39
A.1 Acceptability determination . 39
A.1.1 Single sampling . 39
A.1.2 Double sampling . 39
A.2 Normal inspection . 39
A.3 Normal to reduced inspection . 40
A.4 Reduced to normal inspection. 41
A.5 Tightened inspection . 41
A.6 Tightened to normal inspection . 41
A.7 Discontinuation of inspection . 41
Annex B (normative) Thermal resistance . 42
B.1 Method 1: simplified calculation for flue liners without cavities . 42
B.2 Method 2: thermal resistance of flue liners with or without cavities . 42
B.2.1 General . 42
B.2.2 Data . 43
B.2.2.1 Thermal properties of the material. 43
B.2.2.2 Boundary conditions . 44
B.2.3 Specific conditions for the cavities . 44
B.2.3.1 General . 44
B.2.3.2 Heat transmitted by conduction-convection in the air . 45
B.2.3.3 Heat transmitted by radiation . 46
B.2.3.4 Equivalent thermal conductivity . 46
B.2.4 Calculations . 47
B.2.4.1 General . 47
B.2.4.2 Numerical resolution . 47
B.3 Method Approximate thermal resistance values . 47
Annex C (normative) Measurement of the coefficient of friction of chimneys . 48
Annex D (informative) Comparison with designation given in EN 1443:2003 . 50
Annex ZA (informative) Relationship of this European Standard with Regulation (EU)
No.305/2011 . 51
ZA.1 Scope and relevant characteristics . 51
ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) . 52
ZA.3 Assignment of AVCP tasks . 52
Bibliography . 54
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European foreword
This document (prEN 1457-1:2016) has been prepared by Technical Committee CEN/TC 166
“Chimney”, the secretariat of which is held by ASI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1457-1:2012.
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:
— New Clause 15: Assessment and verification of constancy of performance – AVCP
— New Annex ZA: Relationships of this European Standard with Regulation (EU) n°305/2011
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1 Scope
This European Standard is a product standard for clay/ceramic flue liners operating under dry
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. This part does not cover flue liners operating under wet conditions.
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 312, Particleboards - Specifications
EN 1443:2003, Chimneys - General requirements
EN 10088-1, Stainless steels - Part 1: List of stainless steels
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 - Calibration and verification of static uniaxial testing machines - Part
1: Tension/compression testing machines - Calibration and verification 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 in millimetres of circular flue liners;
b) the internal width in millimetres of square flue liners;
c) the internal width and breadth in millimetres of the cross section of rectangular flue liners
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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 1 to entry: See Figure 1.
Key
1 internal height
Figure 1 — Internal height
3.3
nominal angle of curvature
angle subtended in degrees by a curved flue liner at the centre of the curve
Note 1 to entry: 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 inner liner is designed to operate normally with the temperature of the inner
surface of the flue liner at and below the water dew point
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3.5
dry operating condition
condition when the inner liner 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.
Square Rectangular Circular Wall with vertical
perforations
Figure 3 — Examples of cross-section configuration
Rebated Spigot and socket Sleeve Tapered
Figure 4 — Joint configuration
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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.
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
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