SIST EN 877:2022
(Main)Cast iron pipe systems and their components for the evacuation of water from works - Characteristics and test methods
Cast iron pipe systems and their components for the evacuation of water from works - Characteristics and test methods
This document specifies product characteristics, test/assessment methods and of how to express test/assessment results. Cast iron pipelines kits are usually composed by cast iron pipes, fittings, joints and accessories.
This document covers the range of nominal diameter from DN /40 to DN 600 inclusive.
The cast iron includes grey cast iron and ductile cast iron.
The roof gullies used for siphonic systems are outside the scope of this standard.
Sewerage applications are outside the scope of this standard.
It is intended to be used for the construction of gravity or vacuum discharge pressurized or unpressurised networks installed inside and/or outside Works, above and/or below ground, in construction works.
Rohrsysteme aus Gusseisen und ihre Komponenten zur Entwässerung von Gebäuden - Merkmale und Prüfverfahren
Dieses Dokument legt Produkteigenschaften, Prüf-/Bewertungsverfahren und die Angabe von Prüf-/Bewertungsergebnissen fest. Rohrleitungskits aus Gusseisen bestehen üblicherweise aus gusseisernen Rohren, Formstücken, Verbindungen und Zubehörteilen.
Dieses Dokument deckt den Nenndurchmesserbereich von DN 40 bis einschließlich DN 600 ab.
Das Gusseisen umfasst Gusseisen mit Lamellengraphit und duktiles Gusseisen.
Die für Siphonanlagen verwendeten Dachabläufe liegen außerhalb des Anwendungsbereichs dieses Dokuments.
Die öffentliche Kanalisation liegt außerhalb des Anwendungsbereichs dieses Dokuments.
Es ist zur Anwendung für den Bau von druckbeaufschlagten oder drucklosen Rohrleitungsnetzen für die Schwerkraft- oder Unterdruckentwässerung vorgesehen, die innerhalb und/oder außerhalb von Bauwerken, über- und/oder unterirdisch und in Gebäuden installiert werden.
Réseaux de canalisations en fonte et leurs composants pour l'évacuation des eaux des bâtiments - Caractéristiques et méthodes d'essai
Le présent document spécifie les caractéristiques des produits, les méthodes d’essai/d’évaluation et comment exprimer les résultats d’essai/d’évaluation. Les kits de canalisations en fonte sont généralement constitués de tuyaux, de raccords, d’assemblages et d’accessoires en fonte.
Le présent document couvre la gamme de diamètres nominaux de DN 40 à DN 600 compris.
La fonte comprend la fonte à graphite lamellaire et la fonte ductile.
Les naissances utilisées avec les systèmes siphoïdes ne font pas partie du domaine d’application du présent document.
Les applications d’assainissement ne font pas partie du domaine d’application du présent document.
Le présent document est destiné à être utilisé pour la construction de réseaux gravitaires, sous vide, pressurisés ou non pressurisés, installés à l’intérieur et/ou à l’extérieur des bâtiments, en aérien et enterrés, dans les ouvrages de construction.
Cevni sistemi in njihovi sestavni deli iz litega železa za odvodnjavanje iz stavb - Karakteristike in preskusne metode
Ta dokument določa značilnosti izdelka, preskusne metode/metode za ocenjevanje in način za izražanje rezultatov preskusa/ocenjevanja. Cevovodi iz litega železa so običajno sestavljeni iz cevi, fitingov, spojev in pribora iz litega železa.
Ta dokument zajema nazivne premere od DN /40 do vključno DN 600.
Železova litina vključuje sivo litino in duktilno litino.
Ta standard ne zajema strešnih žlebov, ki se uporabljajo za sifonske sisteme.
Standard prav tako ne zajema področja kanalizacije.
Namenjen je za uporabo pri izgradnji gravitacijskih ali vakuumskih tlačnih omrežij oziroma omrežij, ki niso pod tlakom, nameščenih znotraj in/ali zunaj objektov, nad in/ali pod zemljo, v gradbeništvu.
General Information
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Buy Standard
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 877:2022
01-januar-2022
Nadomešča:
SIST EN 877:2001
SIST EN 877:2001/A1:2007
SIST EN 877:2001/A1:2007/AC:2008
Cevni sistemi in njihovi sestavni deli iz litega železa za odvodnjavanje iz stavb -
Karakteristike in preskusne metode
Cast iron pipe systems and their components for the evacuation of water from works -
Characteristics and test methods
Rohrsysteme aus Gusseisen und ihre Komponenten zur Entwässerung von Gebäuden -
Merkmale und Prüfverfahren
Réseaux de canalisations en fonte et leurs composants pour l'évacuation des eaux des
bâtiments - Caractéristiques et méthodes d'essai
Ta slovenski standard je istoveten z: EN 877:2021
ICS:
23.040.10 Železne in jeklene cevi Iron and steel pipes
23.040.40 Kovinski fitingi Metal fittings
91.140.80 Drenažni sistemi Drainage systems
SIST EN 877:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 877:2022
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SIST EN 877:2022
EN 877
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2021
EUROPÄISCHE NORM
ICS 23.040.01 Supersedes EN 877:1999
English Version
Cast iron pipe systems and their components for the
evacuation of water from works - characteristics and test
methods
Réseaux de canalisations en fonte et leurs composants Rohrsysteme aus Gusseisen und ihre Komponenten zur
pour l'évacuation des eaux des bâtiments - Entwässerung von Gebäuden - Merkmale und
Caractéristiques et méthodes d'essai Prüfverfahren
This European Standard was approved by CEN on 16 August 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 877:2021 E
worldwide for CEN national Members.
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SIST EN 877:2022
EN 877:2021 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Characteristics for Cast Iron pipe systems and components . 7
5 Testing, assessment and sampling methods . 23
6 Assessment and verification of constancy of performance - AVCP . 39
Annex A (informative) Other dimensions of pipes, fittings and accessories for buried kits 48
Annex B (informative) Other dimensions of pipes, fittings and accessories for rainwater
kits to be installed outside buildings . 49
Annex C (informative) Field of use for buried pipes and fittings, characteristics of soils . 50
Annex D (informative) General information on some product properties . 51
Annex E (normative) Method of calculation of gross calorific potential of external coatings
for the range of products . 52
Annex F (normative) Mounting and fixing conditions for Single Burning Item test . 53
Annex G (informative) Marking . 56
Bibliography . 57
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SIST EN 877:2022
EN 877:2021 (E)
European foreword
This document (EN 877:2021) has been prepared by Technical Committee CEN/TC 203 “Cast iron pipes,
fittings and their joints”, the secretariat of which is held by AFNOR.
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 April 2022, and conflicting national standards shall be
withdrawn at the latest by April 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a Mandate given to CEN by the European Commission and the
European Free Trade Association.
This document supersedes EN 877:1999, EN 877:1999/A1:2006 and EN 877:1999/A1:2006/AC:2008.
This document includes the following significant technical changes with respect to the previous:
a) Product standard has been extended to kit and components standard.
b) Chapter 4 about characteristics has been restructured with all essential characteristics first.
c) Grip collars have been included as kit components.
d) Pressure tightness including Fittings with access as a kit component has been added.
e) Fire reaction classification has been amended with the agreement of WG 4 of TC 127.
f) Chapter 6 about Assessment and verification of constancy of performance – AVCP has been updated.
This document is one of a series of standards for cast iron products for pipelines for various applications.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, 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 the United
Kingdom.
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SIST EN 877:2022
EN 877:2021 (E)
1 Scope
This document specifies product characteristics, test/assessment methods and how to express
test/assessment results. Cast iron pipelines kits are usually composed of cast iron pipes, fittings, joints
and accessories.
This document covers the range of nominal diameter from DN 40 to DN 600 inclusive.
The cast iron includes grey cast iron and ductile cast iron.
The roof gullies used for siphonic systems are outside the scope of this document.
Sewerage applications are outside the scope of this document.
It is intended to be used for the construction of gravity or vacuum discharge pressurized or unpressurised
networks installed inside and/or outside works, above and/or below ground and in construction works.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 598:2007+A1:2009, Ductile iron pipes, fittings, accessories and their joints for sewerage applications -
Requirements and test methods
EN 681-1:1996, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage
applications — Part 1: Vulcanized rubber
EN 10088-1, Stainless steels — Part 1: List of stainless steels
EN 10204, Metallic products — Types of inspection documents
EN 13501-1:2018, Fire classification of construction products and building elements — Part 1:
Classification using data from reaction to fire tests
EN 13823, Reaction to fire tests for building products — Building products excluding floorings exposed to
the thermal attack by a single burning item
EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts,
screws and studs with specified property classes — Coarse thread and fine pitch thread (ISO 898-1)
EN ISO 898-2, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 2: Nuts with
specified property classes — Coarse thread and fine pitch thread (ISO 898-2)
EN ISO 1514, Paints and varnishes — Standard panels for testing (ISO 1514)
EN ISO 1716, Reaction to fire tests for products — Determination of the gross heat of combustion (calorific
value) (ISO 1716)
EN ISO 2409, Paints and varnishes — Cross-cut test (ISO 2409)
EN ISO 2808, Paints and varnishes — Determination of film thickness (ISO 2808)
EN ISO 2812-1, Paints and varnishes — Determination of resistance to liquids — Part 1: Immersion in
liquids other than water (ISO 2812-1)
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SIST EN 877:2022
EN 877:2021 (E)
EN ISO 3506-1, Fasteners — Mechanical properties of corrosion-resistant stainless steel fasteners — Part
1: Bolts, screws and studs with specified grades and property classes (ISO 3506-1)
EN ISO 3506-2, Fasteners — Mechanical properties of corrosion-resistant stainless steel fasteners — Part
2: Nuts with specified grades and property classes (ISO 3506-2)
EN ISO 4628-2, Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity
and size of defects, and of intensity of uniform changes in appearance — Part 2: Assessment of degree of
blistering (ISO 4628-2)
EN ISO 4628-3, Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity
and size of defects, and of intensity of uniform changes in appearance — Part 3: Assessment of degree of
rusting (ISO 4628-3)
EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1)
EN ISO 6892-1:2019, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
(ISO 6892-1:2019)
EN ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests (ISO 9227)
EN ISO/CIE 11664-4, Colorimetry — Part 4: CIE 1976 L*a*b* colour space (ISO/CIE 11664-4)
EN ISO 11925-2, Reaction to fire tests — Ignitability of products subjected to direct impingement of
flame — Part 2: Single-flame source test (ISO 11925-2)
ISO 185:2020, Grey cast irons — Classification
ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
discharge system for buildings
system of pipes, fittings, accessories and joints used to collect and drain waste water and rainwater from
a building; it comprises discharge pipes, stack ventilation and rainwater pipes, installed within the limits
of a building or attached to the building and this includes pipes between the building and the inspection
chambers
Note 1 to entry: This applies to gravity or vacuum, inside and outside buildings, above and below ground.
3.2
drain
system of pipes, fittings, accessories and joints installed outside the limits of a building in order to connect
the discharge system of this building to a sewer or a septic tank
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SIST EN 877:2022
EN 877:2021 (E)
3.3
sewer
system of pipes designed to collect waste water and rainwater from buildings and surface water and to
convey them to the point of disposal or treatment
3.4
cast iron
alloy of iron and carbon in which graphite can be present in different forms
3.5
kit
construction product placed on the market by a single manufacturer as a set of at least two separate
components that need to be put together to be incorporated in the construction work
Note 1 to entry: The wording cast iron pipe systems is here in this document equivalent to cast iron pipe kits.
[SOURCE: CPR N° 305/2011 of 9 March 2011]
3.6
pipe
kit component casting of uniform bore, straight in axis, normally having plain ends but which can also be
socketed
3.7
fitting
kit component in cast iron which allows a deviation, a change of direction or diameter, including access
elements and traps
3.8
coupling
kit component, which is a jointing element for pipes and/or fittings subjected to internal or external
pressure
3.9
gasket
kit component providing sealing function to joints
3.10
clamping
kit component, which is a securing element for pipes and/or fittings subjected to internal pressure,
providing axial restraint to the end thrust arising from a change of direction, blank end etc., e.g. grip
collars
3.11
grip collar
kit component that ensures axial restraint up to a defined pressure by mounting it over a joint
3.12
joint
connection between the ends of pipes and/or fittings, including the coupling or clamping component,
with sealing effected by elastomeric gasket(s); as soon as it is an assembly of several kit components as
coupling, clamping or gaskets, the joint is a kit
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SIST EN 877:2022
EN 877:2021 (E)
3.13
accessory
kit component, any element used in a network, e.g. for maintenance or inspection reasons
3.14
nominal size
DN
alphanumerical designation of size for components of a pipework system, to be used for reference
purposes, which comprises the letters DN followed by a dimensionless which is indirectly related to the
physical size, in millimetres, of the bore or outside diameter of the end connections
Note 1 to entry: In this document, it is the bore.
[SOURCE: EN ISO 6708]
3.15
length
effective length of a pipe or fitting
Note 1 to entry: For double spigot pipes and fittings, the effective length is equal to the overall length. For spigot
and socket pipes and fittings, the effective length is equal to the overall length minus the spigot insertion depth as
given by the manufacturer.
3.16
range of products
design system produced by one manufacturer for which the test results for one or more characteristics
from any one product within the range are valid for all other products within this range
3.17
cast iron pipe system under vacuum
siphonic system for draining rainwater and vacuum system for waste waters
3.18
design system
collection of components from which a “kit” may be created for subsequent installation in the works
Note 1 to entry: A design system might, for example, be presented in a supplier’s catalogue, from which the
purchaser can make a choice. A design system can give rise to one or many different “kits”, but the system itself
cannot be bought.
3.19
assembled system
kit after it has been installed in the works
Note 1 to entry: An “assembled system” may be made up only of the “kit” or it may comprise the “kit” assembled
with one or more other products which could themselves be construction products.
4 Characteristics for cast iron pipe systems and components
4.1 Crushing strength (only for grey cast iron)
Cast iron components as pipes, fittings and accessories shall have the minimal crushing strength given in
Table 7. Test method is described in 5.6.
The assessment of each of those components insures the assessment of the kit.
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SIST EN 877:2022
EN 877:2021 (E)
4.2 Impact resistance for kits
The impact resistance assessment is given by the mechanical properties of pipes, fittings and accessories.
They shall have the minimal tensile strength and maximum Brinell hardness as given in Table 7 in 4.10.2.
Test method for tensile strength is given in 5.4.
Test method for Brinell hardness measurement is given in 5.5
4.3 Tightness: gas and liquid
4.3.1 General
NOTE In this document, all pressures are relative pressures, expressed in bar (100 kPa = 1 bar).
The assessment of each component as described in this 4.3 insures the assessment of the kit.
4.3.2 Lengths of fittings and sealing zone
Lengths of fittings shall be given in the manufacturers’ catalogues. When measured in accordance with
5.2.7, the lengths of fittings shall be within a tolerance of ± 5 mm.
The ends of the fittings shall have sealing zones straight in axis and free from marking and free from
defects which could impair the fitness for use.
The length T (see Figure 1) of this sealing zone shall comply with the values given in Table 1.
Figure 1 — Length of the sealing zone
4.3.3 Geometry of fittings and accessories
The geometry of fittings and accessories is not part of this document. Fittings and accessories of geometry
used in various countries are in conformity with this document as long as they comply with all other
technical requirements of this document.
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SIST EN 877:2022
EN 877:2021 (E)
Table 1 — Sealing zone of fittings
a
DN Length T of sealing zone
Lower deviation on T
mm P
mm
40 30
50 30
70 35
75 35 - 5
100 40
125 45
150 50
200 60
250 70
300 80
400 80 - 4
500 80
600 80
a
Upper deviations are not given and sealing zones with a length greater than T are permitted.
4.3.4 Water tightness
4.3.4.1 Water tightness of pipes and fittings
4.3.4.1.1 Water tightness of pipes
Water tightness of pipes can be demonstrated by the following calculation.
20××eR
m
P=
DS×
F
where
e is the minimum pipe wall thickness, in millimetres;
D is the mean pipe diameter (DE – e), in millimetres;
DE is the nominal pipe external diameter (see Table 6), in millimetres;
R is the minimum tensile strength of cast iron, in Megapascals;
m
(420 MPa for spheroidal graphite cast iron and 200 MPa for grey cast iron; see 4.10.2);
S is a safety factor of 3.
F
For a DN 100 pipe in grey cast iron, the internal pressure strength is more than 35 bars.
Expected results are given in Table 2.
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SIST EN 877:2022
EN 877:2021 (E)
4.3.4.1.2 Water tightness of fittings
4.3.4.1.2.1 Fittings without access or door
Expected results for water tightness of fittings without access or door are given in Table 2 and the
demonstration done for pipe is valid for these fittings.
4.3.4.1.2.2 Fittings with access or door
When tested in accordance with 5.8, fittings with access or door shall exhibit no visible leakage from the
access or door when subjected to the internal hydrostatic test pressure given in Table 2.
Table 2 — Water tightness of fittings with access or door - performance requirements
Internal test pressure in bar
DN ≤ DN 200 DN > DN 200
a a
0 to 5 0 to 3
a
0 to 0,5 bar water pressure for fittings which will only carry limited pressures because of their
intended use and installation e.g. sanitary application.
4.3.4.2 Water tightness of joints
4.3.4.2.1 General
When tested in accordance with 5.9.4 and 5.9.5, on test apparatus preventing any excessive axial
displacement and subjected to the test conditions and hydrostatic pressures given in Table 4, the joints
shall exhibit no visible leakage.
Table 3 specifies the hydrostatic test pressures for the following test conditions:
a) joint with pipes aligned;
b) joint with pipes deflected to an angle of at least:
3° for nominal sizes up to and including DN 200;
1°45′ for nominal sizes greater than DN 200;
c) joint subject to a shear force of at least 10 DN in newtons, with pipes aligned.
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SIST EN 877:2022
EN 877:2021 (E)
Table 3 — Water tightness of joints - performance requirements
Test condition Hydrostatic test pressure in bar
DN ≤ DN 200 DN > DN 200
internal external internal external
a b c a b c
1) aligned 0 to 5 0 to 0,5 0 to 3 0 to 0,5
a a
2) deflected 0 to 5 – 0 to 3 –
a b a b
3) subject to shear force 0 to 1 – 0 to 1 –
a
0 to 0,5 bar water pressure for joints which will only carry limited pressures because of their intended
use and installation; 0 to 0,1 bar water pressure for joints connecting to sanitary ware, e.g. WC, washbasin
and non-pressurized gravity flow.
b
Applicable to socketed joints only when they are to be buried.
c
Does not apply to nominal sizes less than DN 100 and does not apply to joints connecting to sanitary ware,
e.g. WC, washbasin.
4.3.4.2.2 Water tightness for buried systems
For joints which are used exclusively for buried kits, the internal hydrostatic test pressure specified in
Table 3 lines a) and b) may be limited to 1 bar. This may limit to 1 bar also the test pressure specified in
Table 4 for buried grip collars.
4.3.4.2.3 Water tightness for rainwater systems installed outside buildings
Joints shall be watertight at least to non-pressurized gravity flow. See note a) in Table 3.
4.3.4.3 Resistance to end thrust with grip collars
When tested in accordance with 5.10.3, on test apparatus preventing any excessive axial displacement
and subjected to the test conditions:
— joint with pipes aligned;
— internal hydrostatic pressures given in Table 4;
the grip collars shall limit the axial movement of pipes. During each stage in pressure, there shall be no
axial movement of the pipes.
Table 4 — Resistance to end thrust of grip collars - performance requirements
Test condition Internal test pressure in bar
DN ≤ DN 200 DN > DN 200
aligned 0 to 5 0 to 3
4.3.5 Air tightness
In order to ensure a seal against odours, all joints shall be tight against positive internal air pressure of
0 mbar to 10 mbar when tested in accordance with 5.9.6.
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SIST EN 877:2022
EN 877:2021 (E)
4.4 Vacuum tightness (only for under vacuum evacuation of water from works)
4.4.1 General
The assessment of each component as described in this 4.4 insures the assessment of the kit.
4.4.2 Pipes resistance to vacuum
Expected results for pipes resistance to vacuum are given in Table 5, see 4.4.4.
4.4.3 Fittings – resistance to vacuum
4.4.3.1 Fittings without access or door
Expected results for resistance to vacuum of Fittings without access or door are given in Table 5. The
demonstration done for pipe is valid for these fittings.
4.4.3.2 Fittings with access or door
When tested in accordance with 5.8, fittings with access or door shall withstand a negative pressure. An
initial negative pressure of −0,8 bar is generated and after a waiting time of 1 h, the final pressure shall
not reach the limiting values given in Table 5.
4.4.4 Joints – resistance to vacuum
In addition to the technical requirements of 4.3.4.2, 4.3.5 and 4.12 and when tested in accordance with
5.13, the joints shall withstand a negative pressure. An initial negative pressure of −0,8 bar is generated
and after a waiting time of 1 h, the final pressure shall not reach the limiting values given in Table 5.
Table 5 — Resistance to vacuum - performance requirements
Test condition Test pressure in bar
DN ≤ DN 200 DN > DN 200
aligned −0,7 −0,4
4.5 Maximum load for admissible deformation (only for below ground)
Maximum load of kits and components can be assessed by the maximum load of the pipe.
The load bearing capacity expressed by the load per unit length uniformly distributed on the top of the
pipe are evaluated by means of the formula below:
2
πσ.e
min
f≥
3(DE − e )
max min
where
f is the ultimate load per unit length on the top of the pipe, in newtons per millimetre;
e
is the minimum wall thickness of the pipe, in millimetres;
min
DE is the maximum external diameter, in millimetres;
max
σ is the ring crush strength in accordance with Table 7, in megapascals.
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EN 877:2021 (E)
4.6 Reaction to fire (only for above ground evacuation of water from works and under
vacuum evacuation of water from works)
4.6.1 Reaction to fire of components
As written in the scope of EN 13501-1:2018, products are considered in relation to their end use
application. Components are always assembled with other components into a system, therefore the
assessment of single component is not considered as appropriate. Consequently, the assessment only
applies to kit.
4.6.2 Reaction to fire of kits
The reaction to fire indicates the degree of contribution of the material to the behaviour of the
construction product in the event of fire. When tested in accordance to the test methods given in 5.7.3.3,
relevant for the claimed class, the test results are expressed as a class according to EN 13501-1.
Whether products covered by this document are made from one or more of the materials that have been
considered, under established conditions, as belonging to the category “No contribution to fire” because
of their low level of combustibility, the reaction to fire class A applies to these products without the need
of carrying out reaction to fire tests.
The mounting and fixing conditions for the SBI test are given in Annex F.
Considering the products in their end-use conditions as an assembled system:
— internal coatings are not relevant as they are not exposed to fire (a very small volume of smoke can
be created but this will exit the building via stacks vents);
— gaskets of joints are not relevant either as in the end-use conditions they are not exposed to fire
(except for some designs a very small compressed edge) and as such represent a very low quantity
of organic material.
In order to verify these assumptions, they shall be tested according to Annex F using the mounting
adaptations given.
According to EN 13501-1, as the gross calorific potential (PCS) of the products considered as an
assembled system including pipes, fittings and couplings, due to their densities and weight quantities,
will always satisfy the requirement on PCS for the product as a whole (≤2,0 MJ/kg), the reaction to fire
classification shall be obtained as follows:
— external coatings, if containing more than 1 % by weight or volume (whichever is the more onerous)
of homogeneously distributed organic material, shall satisfy the requirements of 4.11.3 on
ignitability or gross calorific potential, depending on the intended class of reaction to fire;
and
— a range of products (including coated pipes, coated fittings, couplings and possibly grip collars) shall
be tested according to Annex F using the mounting adaptations given, and shall satisfy the
requirements of classification criteria and additional classifications listed in EN 13501-1 for the
intended class of reaction to fire. If a range of products includes grip collars, as these products are
not always installed on the discharge system depending on the intended performance:
— the test shall be done without them to evaluate the behaviour of the couplings without any
protection to the flame;
— and only if the grip collars include an organic material, the test shall be done again with the grip
collars installed on top of the couplings (see Annex F).
13
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SIST EN 877:2022
EN 877:2021 (E)
In order for a manufacturer of only joints to obtain a classification, the joints shall be tested once
according to Annex F using the mounting adaptations given, with pipes and fittings of a cast iron range of
products which already has a reaction to fire classification issued by a certified test laboratory. It shall be
demonstrated that the existing classification of the range of products is not made worse by the
substitution of the joints.
NOTE See D.2.
4.7 Surface condition
Pipes, fittings and accessories shall be free from defects (superficial and other defects) which could be
detrimental to their correct operation or long service life as defined in this document.
4.8 Dimensions
4.8.1 Nominal size (DN)
The nominal sizes shall be as given in column 1 of Table 6.
4.8.2 External diameter (DE)
The standard external diameters (DE) of pipes and fittings, as well as the tolerances applicable to these,
shall comply with the values given in Table 6, when measured in accordance with 5.2.1. When, by
agreement between manufacturer and purchaser, speci
...
SLOVENSKI STANDARD
SIST EN 877:2022
01-januar-2022
Nadomešča:
SIST EN 877:2001
SIST EN 877:2001/A1:2007
SIST EN 877:2001/A1:2007/AC:2008
Cevni sistemi iz litega železa za odvodnjavanje iz stavb - Karakteristike in
preskusne metode
Cast iron pipes systems for the evacuation of water from works - Characteristics and test
methods
ussrohrsysteme zur Ableitung von Wasser aus Entwässerungsanlagen - Eigenschaften
und Prüfverfahren
Réseaux de canalisations en fonte pour l'évacuation des eaux des bâtiments -
Caractéristiques et méthodes d'essai
Ta slovenski standard je istoveten z: EN 877:2021
ICS:
23.040.10 Železne in jeklene cevi Iron and steel pipes
23.040.40 Kovinski fitingi Metal fittings
91.140.80 Drenažni sistemi Drainage systems
SIST EN 877:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 877:2022
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SIST EN 877:2022
EN 877
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2021
EUROPÄISCHE NORM
ICS 23.040.01 Supersedes EN 877:1999
English Version
Cast iron pipe systems and their components for the
evacuation of water from works - characteristics and test
methods
Réseaux de canalisations en fonte et leurs composants Rohrsysteme aus Gusseisen und ihre Komponenten zur
pour l'évacuation des eaux des bâtiments - Entwässerung von Gebäuden - Merkmale und
Caractéristiques et méthodes d'essai Prüfverfahren
This European Standard was approved by CEN on 16 August 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 877:2021 E
worldwide for CEN national Members.
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SIST EN 877:2022
EN 877:2021 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Characteristics for Cast Iron pipe systems and components . 7
5 Testing, assessment and sampling methods . 23
6 Assessment and verification of constancy of performance - AVCP . 39
Annex A (informative) Other dimensions of pipes, fittings and accessories for buried kits 48
Annex B (informative) Other dimensions of pipes, fittings and accessories for rainwater
kits to be installed outside buildings . 49
Annex C (informative) Field of use for buried pipes and fittings, characteristics of soils . 50
Annex D (informative) General information on some product properties . 51
Annex E (normative) Method of calculation of gross calorific potential of external coatings
for the range of products . 52
Annex F (normative) Mounting and fixing conditions for Single Burning Item test . 53
Annex G (informative) Marking . 56
Bibliography . 57
2
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SIST EN 877:2022
EN 877:2021 (E)
European foreword
This document (EN 877:2021) has been prepared by Technical Committee CEN/TC 203 “Cast iron pipes,
fittings and their joints”, the secretariat of which is held by AFNOR.
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 April 2022, and conflicting national standards shall be
withdrawn at the latest by April 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a Mandate given to CEN by the European Commission and the
European Free Trade Association.
This document supersedes EN 877:1999, EN 877:1999/A1:2006 and EN 877:1999/A1:2006/AC:2008.
This document includes the following significant technical changes with respect to the previous:
a) Product standard has been extended to kit and components standard.
b) Chapter 4 about characteristics has been restructured with all essential characteristics first.
c) Grip collars have been included as kit components.
d) Pressure tightness including Fittings with access as a kit component has been added.
e) Fire reaction classification has been amended with the agreement of WG 4 of TC 127.
f) Chapter 6 about Assessment and verification of constancy of performance – AVCP has been updated.
This document is one of a series of standards for cast iron products for pipelines for various applications.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, 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 the United
Kingdom.
3
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SIST EN 877:2022
EN 877:2021 (E)
1 Scope
This document specifies product characteristics, test/assessment methods and how to express
test/assessment results. Cast iron pipelines kits are usually composed of cast iron pipes, fittings, joints
and accessories.
This document covers the range of nominal diameter from DN 40 to DN 600 inclusive.
The cast iron includes grey cast iron and ductile cast iron.
The roof gullies used for siphonic systems are outside the scope of this document.
Sewerage applications are outside the scope of this document.
It is intended to be used for the construction of gravity or vacuum discharge pressurized or unpressurised
networks installed inside and/or outside works, above and/or below ground and in construction works.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 598:2007+A1:2009, Ductile iron pipes, fittings, accessories and their joints for sewerage applications -
Requirements and test methods
EN 681-1:1996, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage
applications — Part 1: Vulcanized rubber
EN 10088-1, Stainless steels — Part 1: List of stainless steels
EN 10204, Metallic products — Types of inspection documents
EN 13501-1:2018, Fire classification of construction products and building elements — Part 1:
Classification using data from reaction to fire tests
EN 13823, Reaction to fire tests for building products — Building products excluding floorings exposed to
the thermal attack by a single burning item
EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts,
screws and studs with specified property classes — Coarse thread and fine pitch thread (ISO 898-1)
EN ISO 898-2, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 2: Nuts with
specified property classes — Coarse thread and fine pitch thread (ISO 898-2)
EN ISO 1514, Paints and varnishes — Standard panels for testing (ISO 1514)
EN ISO 1716, Reaction to fire tests for products — Determination of the gross heat of combustion (calorific
value) (ISO 1716)
EN ISO 2409, Paints and varnishes — Cross-cut test (ISO 2409)
EN ISO 2808, Paints and varnishes — Determination of film thickness (ISO 2808)
EN ISO 2812-1, Paints and varnishes — Determination of resistance to liquids — Part 1: Immersion in
liquids other than water (ISO 2812-1)
4
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SIST EN 877:2022
EN 877:2021 (E)
EN ISO 3506-1, Fasteners — Mechanical properties of corrosion-resistant stainless steel fasteners — Part
1: Bolts, screws and studs with specified grades and property classes (ISO 3506-1)
EN ISO 3506-2, Fasteners — Mechanical properties of corrosion-resistant stainless steel fasteners — Part
2: Nuts with specified grades and property classes (ISO 3506-2)
EN ISO 4628-2, Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity
and size of defects, and of intensity of uniform changes in appearance — Part 2: Assessment of degree of
blistering (ISO 4628-2)
EN ISO 4628-3, Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity
and size of defects, and of intensity of uniform changes in appearance — Part 3: Assessment of degree of
rusting (ISO 4628-3)
EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1)
EN ISO 6892-1:2019, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
(ISO 6892-1:2019)
EN ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests (ISO 9227)
EN ISO/CIE 11664-4, Colorimetry — Part 4: CIE 1976 L*a*b* colour space (ISO/CIE 11664-4)
EN ISO 11925-2, Reaction to fire tests — Ignitability of products subjected to direct impingement of
flame — Part 2: Single-flame source test (ISO 11925-2)
ISO 185:2020, Grey cast irons — Classification
ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
discharge system for buildings
system of pipes, fittings, accessories and joints used to collect and drain waste water and rainwater from
a building; it comprises discharge pipes, stack ventilation and rainwater pipes, installed within the limits
of a building or attached to the building and this includes pipes between the building and the inspection
chambers
Note 1 to entry: This applies to gravity or vacuum, inside and outside buildings, above and below ground.
3.2
drain
system of pipes, fittings, accessories and joints installed outside the limits of a building in order to connect
the discharge system of this building to a sewer or a septic tank
5
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SIST EN 877:2022
EN 877:2021 (E)
3.3
sewer
system of pipes designed to collect waste water and rainwater from buildings and surface water and to
convey them to the point of disposal or treatment
3.4
cast iron
alloy of iron and carbon in which graphite can be present in different forms
3.5
kit
construction product placed on the market by a single manufacturer as a set of at least two separate
components that need to be put together to be incorporated in the construction work
Note 1 to entry: The wording cast iron pipe systems is here in this document equivalent to cast iron pipe kits.
[SOURCE: CPR N° 305/2011 of 9 March 2011]
3.6
pipe
kit component casting of uniform bore, straight in axis, normally having plain ends but which can also be
socketed
3.7
fitting
kit component in cast iron which allows a deviation, a change of direction or diameter, including access
elements and traps
3.8
coupling
kit component, which is a jointing element for pipes and/or fittings subjected to internal or external
pressure
3.9
gasket
kit component providing sealing function to joints
3.10
clamping
kit component, which is a securing element for pipes and/or fittings subjected to internal pressure,
providing axial restraint to the end thrust arising from a change of direction, blank end etc., e.g. grip
collars
3.11
grip collar
kit component that ensures axial restraint up to a defined pressure by mounting it over a joint
3.12
joint
connection between the ends of pipes and/or fittings, including the coupling or clamping component,
with sealing effected by elastomeric gasket(s); as soon as it is an assembly of several kit components as
coupling, clamping or gaskets, the joint is a kit
6
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SIST EN 877:2022
EN 877:2021 (E)
3.13
accessory
kit component, any element used in a network, e.g. for maintenance or inspection reasons
3.14
nominal size
DN
alphanumerical designation of size for components of a pipework system, to be used for reference
purposes, which comprises the letters DN followed by a dimensionless which is indirectly related to the
physical size, in millimetres, of the bore or outside diameter of the end connections
Note 1 to entry: In this document, it is the bore.
[SOURCE: EN ISO 6708]
3.15
length
effective length of a pipe or fitting
Note 1 to entry: For double spigot pipes and fittings, the effective length is equal to the overall length. For spigot
and socket pipes and fittings, the effective length is equal to the overall length minus the spigot insertion depth as
given by the manufacturer.
3.16
range of products
design system produced by one manufacturer for which the test results for one or more characteristics
from any one product within the range are valid for all other products within this range
3.17
cast iron pipe system under vacuum
siphonic system for draining rainwater and vacuum system for waste waters
3.18
design system
collection of components from which a “kit” may be created for subsequent installation in the works
Note 1 to entry: A design system might, for example, be presented in a supplier’s catalogue, from which the
purchaser can make a choice. A design system can give rise to one or many different “kits”, but the system itself
cannot be bought.
3.19
assembled system
kit after it has been installed in the works
Note 1 to entry: An “assembled system” may be made up only of the “kit” or it may comprise the “kit” assembled
with one or more other products which could themselves be construction products.
4 Characteristics for cast iron pipe systems and components
4.1 Crushing strength (only for grey cast iron)
Cast iron components as pipes, fittings and accessories shall have the minimal crushing strength given in
Table 7. Test method is described in 5.6.
The assessment of each of those components insures the assessment of the kit.
7
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SIST EN 877:2022
EN 877:2021 (E)
4.2 Impact resistance for kits
The impact resistance assessment is given by the mechanical properties of pipes, fittings and accessories.
They shall have the minimal tensile strength and maximum Brinell hardness as given in Table 7 in 4.10.2.
Test method for tensile strength is given in 5.4.
Test method for Brinell hardness measurement is given in 5.5
4.3 Tightness: gas and liquid
4.3.1 General
NOTE In this document, all pressures are relative pressures, expressed in bar (100 kPa = 1 bar).
The assessment of each component as described in this 4.3 insures the assessment of the kit.
4.3.2 Lengths of fittings and sealing zone
Lengths of fittings shall be given in the manufacturers’ catalogues. When measured in accordance with
5.2.7, the lengths of fittings shall be within a tolerance of ± 5 mm.
The ends of the fittings shall have sealing zones straight in axis and free from marking and free from
defects which could impair the fitness for use.
The length T (see Figure 1) of this sealing zone shall comply with the values given in Table 1.
Figure 1 — Length of the sealing zone
4.3.3 Geometry of fittings and accessories
The geometry of fittings and accessories is not part of this document. Fittings and accessories of geometry
used in various countries are in conformity with this document as long as they comply with all other
technical requirements of this document.
8
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SIST EN 877:2022
EN 877:2021 (E)
Table 1 — Sealing zone of fittings
a
DN Length T of sealing zone
Lower deviation on T
mm P
mm
40 30
50 30
70 35
75 35 - 5
100 40
125 45
150 50
200 60
250 70
300 80
400 80 - 4
500 80
600 80
a
Upper deviations are not given and sealing zones with a length greater than T are permitted.
4.3.4 Water tightness
4.3.4.1 Water tightness of pipes and fittings
4.3.4.1.1 Water tightness of pipes
Water tightness of pipes can be demonstrated by the following calculation.
20××eR
m
P=
DS×
F
where
e is the minimum pipe wall thickness, in millimetres;
D is the mean pipe diameter (DE – e), in millimetres;
DE is the nominal pipe external diameter (see Table 6), in millimetres;
R is the minimum tensile strength of cast iron, in Megapascals;
m
(420 MPa for spheroidal graphite cast iron and 200 MPa for grey cast iron; see 4.10.2);
S is a safety factor of 3.
F
For a DN 100 pipe in grey cast iron, the internal pressure strength is more than 35 bars.
Expected results are given in Table 2.
9
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EN 877:2021 (E)
4.3.4.1.2 Water tightness of fittings
4.3.4.1.2.1 Fittings without access or door
Expected results for water tightness of fittings without access or door are given in Table 2 and the
demonstration done for pipe is valid for these fittings.
4.3.4.1.2.2 Fittings with access or door
When tested in accordance with 5.8, fittings with access or door shall exhibit no visible leakage from the
access or door when subjected to the internal hydrostatic test pressure given in Table 2.
Table 2 — Water tightness of fittings with access or door - performance requirements
Internal test pressure in bar
DN ≤ DN 200 DN > DN 200
a a
0 to 5 0 to 3
a
0 to 0,5 bar water pressure for fittings which will only carry limited pressures because of their
intended use and installation e.g. sanitary application.
4.3.4.2 Water tightness of joints
4.3.4.2.1 General
When tested in accordance with 5.9.4 and 5.9.5, on test apparatus preventing any excessive axial
displacement and subjected to the test conditions and hydrostatic pressures given in Table 4, the joints
shall exhibit no visible leakage.
Table 3 specifies the hydrostatic test pressures for the following test conditions:
a) joint with pipes aligned;
b) joint with pipes deflected to an angle of at least:
3° for nominal sizes up to and including DN 200;
1°45′ for nominal sizes greater than DN 200;
c) joint subject to a shear force of at least 10 DN in newtons, with pipes aligned.
10
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EN 877:2021 (E)
Table 3 — Water tightness of joints - performance requirements
Test condition Hydrostatic test pressure in bar
DN ≤ DN 200 DN > DN 200
internal external internal external
a b c a b c
1) aligned 0 to 5 0 to 0,5 0 to 3 0 to 0,5
a a
2) deflected 0 to 5 – 0 to 3 –
a b a b
3) subject to shear force 0 to 1 – 0 to 1 –
a
0 to 0,5 bar water pressure for joints which will only carry limited pressures because of their intended
use and installation; 0 to 0,1 bar water pressure for joints connecting to sanitary ware, e.g. WC, washbasin
and non-pressurized gravity flow.
b
Applicable to socketed joints only when they are to be buried.
c
Does not apply to nominal sizes less than DN 100 and does not apply to joints connecting to sanitary ware,
e.g. WC, washbasin.
4.3.4.2.2 Water tightness for buried systems
For joints which are used exclusively for buried kits, the internal hydrostatic test pressure specified in
Table 3 lines a) and b) may be limited to 1 bar. This may limit to 1 bar also the test pressure specified in
Table 4 for buried grip collars.
4.3.4.2.3 Water tightness for rainwater systems installed outside buildings
Joints shall be watertight at least to non-pressurized gravity flow. See note a) in Table 3.
4.3.4.3 Resistance to end thrust with grip collars
When tested in accordance with 5.10.3, on test apparatus preventing any excessive axial displacement
and subjected to the test conditions:
— joint with pipes aligned;
— internal hydrostatic pressures given in Table 4;
the grip collars shall limit the axial movement of pipes. During each stage in pressure, there shall be no
axial movement of the pipes.
Table 4 — Resistance to end thrust of grip collars - performance requirements
Test condition Internal test pressure in bar
DN ≤ DN 200 DN > DN 200
aligned 0 to 5 0 to 3
4.3.5 Air tightness
In order to ensure a seal against odours, all joints shall be tight against positive internal air pressure of
0 mbar to 10 mbar when tested in accordance with 5.9.6.
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EN 877:2021 (E)
4.4 Vacuum tightness (only for under vacuum evacuation of water from works)
4.4.1 General
The assessment of each component as described in this 4.4 insures the assessment of the kit.
4.4.2 Pipes resistance to vacuum
Expected results for pipes resistance to vacuum are given in Table 5, see 4.4.4.
4.4.3 Fittings – resistance to vacuum
4.4.3.1 Fittings without access or door
Expected results for resistance to vacuum of Fittings without access or door are given in Table 5. The
demonstration done for pipe is valid for these fittings.
4.4.3.2 Fittings with access or door
When tested in accordance with 5.8, fittings with access or door shall withstand a negative pressure. An
initial negative pressure of −0,8 bar is generated and after a waiting time of 1 h, the final pressure shall
not reach the limiting values given in Table 5.
4.4.4 Joints – resistance to vacuum
In addition to the technical requirements of 4.3.4.2, 4.3.5 and 4.12 and when tested in accordance with
5.13, the joints shall withstand a negative pressure. An initial negative pressure of −0,8 bar is generated
and after a waiting time of 1 h, the final pressure shall not reach the limiting values given in Table 5.
Table 5 — Resistance to vacuum - performance requirements
Test condition Test pressure in bar
DN ≤ DN 200 DN > DN 200
aligned −0,7 −0,4
4.5 Maximum load for admissible deformation (only for below ground)
Maximum load of kits and components can be assessed by the maximum load of the pipe.
The load bearing capacity expressed by the load per unit length uniformly distributed on the top of the
pipe are evaluated by means of the formula below:
2
πσ.e
min
f≥
3(DE − e )
max min
where
f is the ultimate load per unit length on the top of the pipe, in newtons per millimetre;
e
is the minimum wall thickness of the pipe, in millimetres;
min
DE is the maximum external diameter, in millimetres;
max
σ is the ring crush strength in accordance with Table 7, in megapascals.
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4.6 Reaction to fire (only for above ground evacuation of water from works and under
vacuum evacuation of water from works)
4.6.1 Reaction to fire of components
As written in the scope of EN 13501-1:2018, products are considered in relation to their end use
application. Components are always assembled with other components into a system, therefore the
assessment of single component is not considered as appropriate. Consequently, the assessment only
applies to kit.
4.6.2 Reaction to fire of kits
The reaction to fire indicates the degree of contribution of the material to the behaviour of the
construction product in the event of fire. When tested in accordance to the test methods given in 5.7.3.3,
relevant for the claimed class, the test results are expressed as a class according to EN 13501-1.
Whether products covered by this document are made from one or more of the materials that have been
considered, under established conditions, as belonging to the category “No contribution to fire” because
of their low level of combustibility, the reaction to fire class A applies to these products without the need
of carrying out reaction to fire tests.
The mounting and fixing conditions for the SBI test are given in Annex F.
Considering the products in their end-use conditions as an assembled system:
— internal coatings are not relevant as they are not exposed to fire (a very small volume of smoke can
be created but this will exit the building via stacks vents);
— gaskets of joints are not relevant either as in the end-use conditions they are not exposed to fire
(except for some designs a very small compressed edge) and as such represent a very low quantity
of organic material.
In order to verify these assumptions, they shall be tested according to Annex F using the mounting
adaptations given.
According to EN 13501-1, as the gross calorific potential (PCS) of the products considered as an
assembled system including pipes, fittings and couplings, due to their densities and weight quantities,
will always satisfy the requirement on PCS for the product as a whole (≤2,0 MJ/kg), the reaction to fire
classification shall be obtained as follows:
— external coatings, if containing more than 1 % by weight or volume (whichever is the more onerous)
of homogeneously distributed organic material, shall satisfy the requirements of 4.11.3 on
ignitability or gross calorific potential, depending on the intended class of reaction to fire;
and
— a range of products (including coated pipes, coated fittings, couplings and possibly grip collars) shall
be tested according to Annex F using the mounting adaptations given, and shall satisfy the
requirements of classification criteria and additional classifications listed in EN 13501-1 for the
intended class of reaction to fire. If a range of products includes grip collars, as these products are
not always installed on the discharge system depending on the intended performance:
— the test shall be done without them to evaluate the behaviour of the couplings without any
protection to the flame;
— and only if the grip collars include an organic material, the test shall be done again with the grip
collars installed on top of the couplings (see Annex F).
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EN 877:2021 (E)
In order for a manufacturer of only joints to obtain a classification, the joints shall be tested once
according to Annex F using the mounting adaptations given, with pipes and fittings of a cast iron range of
products which already has a reaction to fire classification issued by a certified test laboratory. It shall be
demonstrated that the existing classification of the range of products is not made worse by the
substitution of the joints.
NOTE See D.2.
4.7 Surface condition
Pipes, fittings and accessories shall be free from defects (superficial and other defects) which could be
detrimental to their correct operation or long service life as defined in this document.
4.8 Dimensions
4.8.1 Nominal size (DN)
The nominal sizes shall be as given in column 1 of Table 6.
4.8.2 External diameter (DE)
The standard external diameters (DE) of pipes and fittings, as well as the tolerances applicable to these,
shall comply with the values given in Table 6, when measured in accordance with 5.2.1. When, by
agreement between manufacturer and purchaser, specific coatings are supplied for special applications,
other tolerances ar
...
SLOVENSKI STANDARD
oSIST prEN 877:2019
01-februar-2019
Cevni sistemi iz litega železa za hišne vodne odtoke - Karakteristike in preskusne
metode
Cast iron pipes systems for the evacuation of water from works - Characteristics and test
methods
Rohrsystem aus Gusseisen, zur Entwässerung von Gebäuden - Merkmale und
Prüfverfahren
Systèmes de tuyaux en fonte, destinés à l’évacuation des eaux des bâtiments -
Caractéristiques et méthodes d’essais
Ta slovenski standard je istoveten z: prEN 877
ICS:
23.040.10 Železne in jeklene cevi Iron and steel pipes
23.040.40 Kovinski fitingi Metal fittings
91.140.80 Drenažni sistemi Drainage systems
oSIST prEN 877:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 877:2019
DRAFT
EUROPEAN STANDARD
prEN 877
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2019
ICS 23.040.01 Will supersede EN 877:1999
English Version
Cast iron pipes systems for the evacuation of water from
works - Characteristics and test methods
Systèmes de tuyaux en fonte, destinés à l'évacuation Rohrsystem aus Gusseisen, zur Entwässerung von
des eaux des bâtiments - Caractéristiques et méthodes Gebäuden - Merkmale und Prüfverfahren
d'essais
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 203.
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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 877:2019 E
worldwide for CEN national Members.
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Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Cast Iron Pipe systems characteristics . 9
4.1 Crushing strength (only for grey cast iron) . 9
4.2 Impact resistance . 9
4.3 Tightness: gas and liquid . 9
4.4 Vacuum Tightness (only for under vacuum evacuation of water from works). 13
4.5 Maximum load for admissible deformation (only for kits below ground) . 13
4.6 Release of dangerous substances (regulated substances) . 13
4.7 Reaction to Fire (only for above ground evacuation of water from works and, under
vacuum evacuation of water from works) . 14
4.8 Surface condition . 15
4.9 Dimensions. 15
4.10 Mass . 18
4.11 Material characteristics of pipes, fittings and accessories . 18
4.12 Coatings for pipes, fittings and accessories . 18
4.13 Joints . 20
4.14 Grip collars . 22
4.15 Characteristics for buried systems . 23
4.16 Characteristics for rainwater systems installed outside buildings . 24
4.17 Characteristics for Systems under vacuum . 24
4.18 Marking . 24
4.19 Interconnection . 25
5 Testing, assessment and sampling methods . 25
5.1 Surface condition . 25
5.2 Dimensions. 25
5.3 Masses . 26
5.4 Tensile strength of pipes and fittings . 27
5.5 Brinell hardness . 29
5.6 Ring crush test for grey cast iron pipes . 29
5.7 Coatings . 30
5.8 Water tightness test for fittings with access or door . 33
5.9 Joints . 34
5.10 Grip collars . 39
5.11 Buried Kits . 40
5.12 Rainwater Kits installed outside buildings . 40
5.13 Kits under vacuum . 40
5.14 Marking . 40
5.15 Impact test . 41
6 Assessment and verification of constancy of performance - AVCP . 42
6.1 General. 42
6.2 Type testing . 42
6.3 Factory production control (FPC) . 48
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Annex A (informative) Other dimensions of pipes, fittings and accessories for buried kits 55
Annex B (informative) Other dimensions of pipes, fittings and accessories for rainwater
kits to be installed outside buildings . 56
Annex C (informative) Field of use for buried pipes and fittings, characteristics of soils,
load-bearing capacity . 57
C.1 Field of use, characteristics of soils . 57
Annex D (informative) General information on some product properties . 58
D.1 Mechanical resistance and stability . 58
D.2 Safety in case of fire . 58
D.3 Hygiene, health and environment . 58
D.4 Noise protection . 58
Annex E (normative) Method of calculation of gross calorific potential of external coatings
for the range of products . 59
Annex F (normative) Mounting and fixing conditions for Single Burning Item test . 60
Annex ZA (informative) Relationship of this European Standard with Regulation (EU)
No.305/2011 . 63
ZA.1 Scope and relevant characteristics . 63
ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) . 67
ZA.3 Assignment of AVCP tasks . 67
Bibliography . 69
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European foreword
This document (prEN 877:2019) has been prepared by Technical Committee CEN/TC 203 “Cast iron
pipes, fittings and their joints”, the secretariat of which is held by AFNOR (in cooperation with CEN/TC
165).
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 877:1999.
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.
It is one of a series of standards for cast iron products for pipelines for various applications.
It deals with subjects covered by the International Standard ISO 6594. The major difference is the
inclusion of requirements for joints and for product performance.
This standard is in conformity with the general requirements already established by CEN/TC 165 in the
field of waste water engineering, as required by EN 476.
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1 Scope
This document specifies product characteristics, test/assessment methods and of how to express
test/assessment results. Cast iron pipelines kits are usually composed by cast iron pipes, fittings, joints
and accessories.
This document covers the range of nominal diameter from DN /40 to DN 600 inclusive.
The cast iron includes grey cast iron and ductile cast iron.
The roof gullies used for siphonic systems are outside the scope of this standard.
Sewerage applications are outside the scope of this standard.
It is intended to be used for the construction of gravity or vacuum discharge pressurized or unpressurised
networks installed inside and/or outside Works, above and/or below ground, in construction works.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 598:2007+A1:2009, Ductile iron pipes, fittings, accessories and their joints for sewerage applications —
Requirements and test methods
EN 681-1, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage
applications — Part 1: Vulcanized rubber
EN 10088-1, Stainless steels — Part 1: List of stainless steels
EN 10088-2, Stainless steels — Part 2: Technical delivery conditions for sheet/plate and strip of corrosion
resisting steels for general purposes
EN 10088-3, Stainless steels — Part 3: Technical delivery conditions for semi-finished products, bars, rods,
wire, sections and bright products of corrosion resisting steels for general purposes
EN 10088-4, Stainless steels — Part 4: Technical delivery conditions for sheet/plate and strip of corrosion
resisting steels for construction purposes
EN 10088-5, Stainless steels — Part 5: Technical delivery conditions for bars, rods, wire, sections and bright
products of corrosion resisting steels for construction purposes
EN 10204, Metallic products — Types of inspection documents
EN 13501-1:2007+A1:2009, Fire classification of construction products and building elements — Part 1:
Classification using data from reaction to fire tests
EN 13823:2010+A1:2014, Reaction to fire tests for building products — Building products excluding
floorings exposed to the thermal attack by a single burning item
EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts, screws
and studs with specified property classes — Coarse thread and fine pitch thread (ISO 898-1)
EN ISO 898-2, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 2: Nuts with
specified property classes — Coarse thread and fine pitch thread (ISO 898-2)
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EN ISO 1514, Paints and varnishes — Standard panels for testing (ISO 1514)
EN ISO 1716, Reaction to fire tests for products — Determination of the gross heat of combustion (calorific
value) (ISO 1716)
EN ISO 2409, Paints and varnishes — Cross-cut test (ISO 2409)
EN ISO 2808:2007, Paints and varnishes — Determination of film thickness (ISO 2808:2007)
EN ISO 2812-1, Paints and varnishes — Determination of resistance to liquids — Part 1: Immersion in
liquids other than water (ISO 2812-1)
EN ISO 3506-1, Mechanical properties of corrosion-resistant stainless steel fasteners — Part 1: Bolts, screws
and studs (ISO 3506-1)
EN ISO 3506-2, Mechanical properties of corrosion-resistant stainless steel fasteners — Part 2: Nuts (ISO
3506-2)
EN ISO 4628-2, Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity
and size of defects, and of intensity of uniform changes in appearance — Part 2: Assessment of degree of
blistering (ISO 4628-2)
EN ISO 4628-3, Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity
and size of defects, and of intensity of uniform changes in appearance — Part 3: Assessment of degree of
rusting (ISO 4628-3)
EN ISO 6506-1:2014, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1:2014)
EN ISO 6892-1:2016, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
(ISO 6892-1:2016)
EN ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests (ISO 9227)
EN ISO 11664-4, Colorimetry — Part 4: CIE 1976 L*a*b* Colour space (ISO 11664-4)
EN ISO 11925-2, Reaction to fire tests — Ignitability of products subjected to direct impingement of flame
— Part 2: Single-flame source test (ISO 11925-2)
ISO 185:2005, Grey cast irons — Classification
ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
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3.1
discharge system for buildings
system of pipes, fittings, accessories and joints used to collect and drain waste water and rainwater from
a building; it comprises discharge pipes, stack ventilation and rainwater pipes, installed within the limits
of a building or attached to the building. This includes pipes between the building and the inspection
chambers
Note 1 to entry: This applies to gravity or vacuum, inside and outside buildings, above and below ground.
3.2
drain
system of pipes, fittings, accessories and joints installed outside the limits of a building in order to connect
the discharge system of this building to a sewer or a septic tank
3.3
sewer
system of pipes designed to collect waste water and rainwater from buildings and surface water and to
convey them to the point of disposal or treatment
3.4
cast iron
alloy of iron and carbon in which graphite can be present in different forms
3.5
kit
kit is a construction product placed on the market by a single manufacturer as a set of at least two
separate components that need to be put together to be incorporated in the construction work
Note 1 to entry: The wording Cast iron pipes systems is here in this standard equivalent to Cast Iron pipes kits.
3.6
pipe
pipe is a kit component casting of uniform bore, straight in axis, normally having plain ends but which
can also be socketed
3.7
fitting
fitting is a kit component in cast iron which allows a deviation, a change of direction or diameter,
including access elements and traps
3.8
coupling
coupling is a kit component. It is a Jointing element for pipes and/or fittings subjected to internal or
external pressure
3.9
gasket
gasket is a kit component providing sealing function to joints
3.10
clamping
clamping is a kit component, a Securing element for pipes and/or fittings subjected to internal pressure,
providing axial restraint to the end thrust arising from a change of direction, blank end etc., e.g. grip
collars
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3.11
grip collars
grip collar is a kit component providing a mechanical reinforcement to joints as it is mounted over the
joints
3.12
joint
connection between the ends of pipes and/or fittings, including the coupling or clamping component,
with sealing effected by elastomeric gasket(s). Joint is a kit as soon as it is an assembly of several kit
components as coupling, clamping or gaskets
3.13
accessory
accessory is a kit component, any element used in a network, e.g. for maintenance or inspection reasons
3.14
nominal size (DN)
alphanumerical designation of size for components of a pipework system, to be used for reference
purposes, which comprises the letters DN followed by a dimensionless which is indirectly related to the
physical size, in millimetres, of the bore or outside diameter of the end connections
[SOURCE: EN ISO 6708:1995]
Note 1 to entry: In this standard, it is the bore.
3.15
length
effective length of a pipe or fitting
Note 1 to entry: For double spigot pipes and fittings, the effective length is equal to the overall length. For spigot
and socket pipes and fittings, the effective length is equal to the overall length minus the spigot insertion depth as
given by the manufacturer.
3.16
range of products
design system produced by one manufacturer for which the test results for one or more characteristics
from any one product within the range are valid for all other products within this range
3.17
cast iron pipe systems under vacuum
siphonic system for draining rainwater and vacuum system for waste waters
3.18
design systems
collection of components from which a “kit” may be created for subsequent installation in the works
Note 1 to entry: A design system may, for example, be presented in a supplier’s catalogue, from which the
purchaser may make a choice. A design system may give rise to one or many different “kits”, the system itself cannot
be bought.
3.19
assembled system
kit after it has been installed in the works
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Note 1 to entry: An "assembled system" may be made up only of the "kit" or it may comprise the "kit" assembled
with one or more other products which may or may not themselves be construction products.
4 Cast Iron Pipe systems characteristics
4.1 Crushing strength (only for grey cast iron)
Pipes, fittings and accessories shall have the minimal crushing strength given in Table 7.
4.2 Impact resistance
This test aims to evaluate the impact resistance of cast iron pipes to guarantee its integrity during
transport and handling.
After the test samples shall show neither visible cracks nor visible breaks, to be declared impact resistant.
Samples with a minimum wall thickness > 4.0mm are declared impact resistant without need to be tested.
A range of product including different DN is declared impact resistant from the moment each DN sample
is declared impact resistant.
Test device, and load are described in 5.15.
4.3 Tightness: gas and liquid
4.3.1 Lengths of fittings and sealing zone
Lengths of fittings shall be given in the manufacturers’ catalogues. When measured in accordance with
5.2.7 the lengths of fittings shall be within a tolerance of + 5 mm.
The ends of the fittings shall have sealing zones straight in axis and free from marking and free from
defects which could impair the fitness for use.
The length T (see Figure 1) of this sealing zone shall comply with the values given in Table 1.
Figure 1 — Length of the sealing zone
4.3.2 Geometry of fittings and accessories
The geometry of fittings and accessories is not part of this standard. Fittings and accessories of geometry
presently used in various countries are in conformity with this standard as long as they comply with all
other technical requirements of this standard.
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Table 1 — Sealing zone of fittings
DN Length T of sealing zone a
Lower deviation on T
mm
P
mm
40 30
50 30
70 35
75 35 - 5
100 40
125 45
150 50
200 60
250 70
300 80
400 80 - 4
500 80
600 80
a
Upper deviations are not given and sealing zones with a length greater than T are permitted.
4.3.3 Water Tightness
4.3.3.1 Water tightness of pipes and fittings
4.3.3.1.1 Water tightness of pipes
Pipes manufactured with cast iron in conformity with this standard (material, dimensions, etc.) shall
withstand the pressure given in Table 2. This can be demonstrated by the following calculation.
20××eR
m
P=
DS×
F
where
e is the minimum pipe wall thickness, in millimetres;
D is the mean pipe diameter (DE – e), in millimetres;
DE is the nominal pipe external diameter (see Table 6), in millimetres;
R is the minimum tensile strength of cast iron, in Megapascals.
m
(420 MPa for spheroidal graphite cast iron and 200 MPa for grey cast iron; see 4.11.2);
S is a safety factor of 3.
F
For a DN 100 pipe in grey cast iron, the internal pressure strength is more than 35 bars.
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4.3.3.1.2 Water tightness of fittings
4.3.3.1.2.1 Fittings without access or door
Fittings without access or door manufactured with cast iron in conformity with this standard (material,
dimensions, etc.) shall withstand the pressure given in Table 2 and the demonstration used for pipes can
work for these fittings.
4.3.3.1.2.2 Fittings with access or door
When tested in accordance with 5.8, fittings with access or door shall exhibit no visible leakage from the
access or door when subjected to the internal hydrostatic test pressure given in Table 2.
Table 2 — Water tightness of fittings with access or door - performance requirements
Internal test pressure in bar
DN ≤ DN 200 DN > DN 200
a a
0 to 5 0 to 3
a
0 to 0,5 bar water pressure for fittings which will only carry limited pressures because of their
intended use and installation.
4.3.3.2 Water tightness of Joints
4.3.3.2.1 General
When tested in accordance with 5.9.4 and 5.9.5, on test apparatus preventing any excessive axial
displacement and subjected to the test conditions and hydrostatic pressures given in Table 4, the joints
shall exhibit no visible leakage.
Table 3 specifies the hydrostatic test pressures for the following test conditions:
a) joint with pipes aligned;
b) joint with pipes deflected to an angle of at least:
3° for nominal sizes up to and including DN 200;
1°45’ for nominal sizes greater than DN 200;
c) joint subject to a shear force of at least 10 DN in newtons, with pipes aligned.
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Table 3 — Water tightness of joints - performance requirements
Test condition Hydrostatic test pressure in bar
DN ≤ DN 200 DN > DN 200
internal external internal external
a b c a b c
a) aligned
0 to 5 0 to 0,5 0 to 3 0 to 0,5
a a
b) deflected -- --
0 to 5 0 to 3
a b a b
c) subject to shear force -- --
0 to 1 0 to 1
a
0 to 0,5 bar water pressure for joints which will only carry limited pressures because of their intended
use and installation; 0 to 0,1 bar water pressure for joints connecting to sanitary ware, e.g. WC, washbasin
and non-pressurized gravity flow.
b
Applicable to socketed joints only when they are to be buried.
c
Does not apply to nominal sizes less than DN 100 and does not apply to joints connecting to sanitary ware,
e.g. WC, washbasin.
4.3.3.2.2 Water tightness for buried systems
For joints which are used exclusively for buried kits, the internal hydrostatic test pressure specified in
Table 3 lines a) and b) may be limited to 1 bar. This may limit to 1 bar also the test pressure specified in
Table 4 for buried grip collars.
4.3.3.2.3 Water Tightness for rainwater systems installed outside buildings
Joints shall be watertight at least to non-pressurised gravity flow. See note a) in Table 3.
4.3.3.3 Resistance to end thrust with grip collars
When tested in accordance with 5.10.3, on test apparatus preventing any excessive axial displacement
and subjected to the test conditions:
— joint with pipes aligned;
— internal hydrostatic pressures given in Table 4;
the grip collars shall limit the axial movement of pipes. During each stage in pressure, there shall be no
axial movement of the pipes.
Table 4 — Resistance to end thrust of grip collars - performance requirements
Test condition Internal test pressure in bar
DN ≤ DN 200 DN > DN 200
aligned 0 to 5 0 to 3
4.3.4 Air Tightness
In order to ensure a seal against odours, all joints shall be tight against positive internal air pressure of
0 mbar to 10 mbar when tested in accordance with 5.9.6.
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