INTERNATIONAL STANDARD
applications Ductileironproductsforsewerage
Produits en fonte ductile pour lassainissement
Contents
Page
Foreword iv1 Scope2 Normative references... Terms and definitions3 Technical requirements4 4.1 General. 74.2 4.3 Pressure classification. Dimensional requirements 6 64.4 4.5 Material characteristics. Coatings and linings for pipes. 13 144.6 4.7 Systems designrequirements Coatingsforfittings and accessories 144.8 Leaktightness of pipeline ponents. 15 154.9 Marking... 155.1 5 Performance requirements. Leaktightness of joints 16 165.2 5.3 Diametral stiffness Chemical resistance. 17 185.4 Abrasion resistance 186.1 6 Dimensions Test methods and test frequencies. 18 186.2 6.3 Straightness of pipes.. Tensile test. 19 196.4 Brinell hardness 216.5 6.6 Works leaktightness test of pipes and fittingsf for pressure applications 21 227 Type tests. 227.1 7.2 Leaktightness of gravity pipeline ponents. Leaktightness of joints to internal pressure. 22 227.3 7.4 Leaktightness of joints to negative internal pressure.. Leaktightness of joints to external pressure. 23 247.5 7.6 Diametral stiffness of pipe.. Chemicalresistance to effluents 26 247.7 Abrasion resistance.. .278 8.1 Socket and spigot pipes. Tables of dimensions. .28 288.2 Fittings for gravity applications. 308.3 Fittings for pressure and vacuum applications . 32Annex B (informative) Internal protection . Annex A (informative) External protection. .34 .33Annex C (normative) Allowable pressure for pressure sewers . .35Bibliography. .36
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodiesnon-govermmental in liaison with ISO also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The main task of technical mittees is to prepare International Standards. Draft International Standards adopted by the technical mittees are circulated to the member bodies for voting. Publication as anInternational Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patentrights. ISO shall not be held responsible for identifying any or all such patent rights.
Submittee SC 2 Cast iron pipes fittings and their joints.
sn y pn s enssd uo pseq su pue sadd o wss uis mau psi
Ductileironproductsforsewerageapplications
1Scope
u episno semes pe suep jo uonsoo eu o suo e e sose sus
一 to convey surface water (e.g. rainwater) domestic waste water and/or certain types of industrial effluents either in separate systems or in bined systems;- operating without pressure (gravity sewers) or with positive or negative pressure; for installation below or above ground.
NOTE In this International Standard all pressures are relative pressures expressed in bar1).
properties and standard coatings of pipes fittings and accessories. It also gives performance requirements forall ponents including joints.
This Intermational Standard is applicable to pipes fitings and accessories cast by any type of foundry process or manufactured by fabrication of cast ponents as wellas corresponding joints in the size range DN 80 toDN 2600 inclusive.
It is applicable to pipes fittings and accessories which are
odos eu apisno ee deus eysee pue uisep uo spu poids no puey pas um pnpejnuof this International Standard) and normally delivered internally and externally coated.
2Normativereferences
The following referenced documents are indispensable for the application of this document. For datedreferences only the edition cited applies. For undated references the latest edition of the referenced document (including any amendments) applies.
ISO 2531 Ductile iron pipes fittings accessories and their joints for water applications
ISO 4016 Hexagon head bolts - Product grade C
ISO 4034 Hexagon nuts - Product grade C
ISO 4633 Rubber seals - Joint rings for water supply drainage and sewerage pipelines - Specification for
ISO 6506-1 Metallic materials - Brinell hardness test - Part 1: Test method
ISO 7005-2 Metallicffanges - Part 2: Cast iron flanges
ISO 7091 Plain washers - Normal series - Product grade C
ISO 10804 Restrained joint systems for ductile iron pipelines - Design rules and type testing
EN 1092-2 Flanges and their joints- Circular flanges for pipes valves fittings and accessories
3 Termsanddefinitions
For the purposes of this document thefollowin terms and defiions aply.
O3.1
ductileiron
type of cast iron used for pipes fitings and accessories in which graphite is present primarily in spheroidalform
[ISO 2531:2009 definition 3.8]
pipe
3.2
casting of uniform bore with straight axis having either socket spigot or flanged ends
NOTE supy se pegyssep eye yorum 'sueoo pue sgqo6ids pefueg *sexoos peuey o Aide jou sop slu1
[ISO 2531:2009 definition 3.22]
3.3
fittingcasting other than a pipe which allows pipeline deviation change of direction or bore
Flangedsketsfangedspigots andcolasaeaclaiieda fin.
[ISO 2531:2009 definition 3.9]
3.4
accessory
EXAMPLE 1 Glands and bolts for mechanical flexible joints.
EXAMPLE 2 Glands bolts and locking rings or segments for restrained joints.
[ISO 2531:2009 definition 3.1]
3.5
inspectionchamber
inspection and maintenance equipment
3.6
manhole
ponent of a sewer of sufficient size to provide access from the ground surface for inspection and maintenance operations by personnel and equipment
