1、June 2009DEUTSCHE NORM English price group 12No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 23.040.10; 23.040.40!$X%2
2、“1530215www.din.deDDIN EN 15655Ductile iron pipes, fittings and accessories Internal polyurethane lining for pipes and fittings Requirements and test methodsEnglish version of DIN EN 15655:2009-06Rohre, Formstcke und Zubehrteile aus duktilem Gusseisen Polyurethan-Auskleidung von Rohren und Formstcke
3、n Anforderungen und PrfverfahrenEnglische Fassung DIN EN 15655:2009-06www.beuth.deDocument comprises 23 pagesDIN EN 15655:2009-06 2 National foreword This standard has been prepared by CEN/TC 203 “Cast iron pipes, fittings and their joints” (Secretariat: AFNOR, France). The responsible German body i
4、nvolved in its preparation was the Normenausschuss Rohrleitungen und Dampfkesselanlagen (Piping and Boiler Plant Standards Committee), Technical Committee NA 082-00-05 AA Gusseiserne Rohre und Formstcke. The DIN Standards corresponding to the International Standards referred to in this document are
5、as follows: ISO 62:2008 DIN EN ISO 62:2008 ISO 527-3:1995 DIN EN ISO 527-3:1995 ISO 868 DIN EN ISO 868 ISO 8501-1:2007 DIN EN ISO 8501-1:2007 ISO 8503-1:1988 DIN EN ISO 8503-1:1995 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15655 January 2009 ICS 23.040.10; 23.040.40 English Version Ductil
6、e iron pipes, fittings and accessories Internal polyurethane lining for pipes and fittings Requirements and test methods Tuyaux, raccords et accessoires en fonte ductile Revtement intrieur en polyurthane des tuyaux et raccords Prescriptions et mthodes dessais Rohre, Formstcke und Zubehrteile aus duk
7、tilem Gusseisen Polyurethan-Auskleidung von Rohren und Formstcken Anforderungen und Prfverfahren This European Standard was approved by CEN on 22 November 2008. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard t
8、he 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 Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, Ger
9、man). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Re
10、public, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN D
11、E NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15655:2009: EEN 15655:2009 (E) 2 Contents Page Foreword 3 Introduction .4 1
12、Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Ordering information .7 5 Technical Requirements .7 5.1 Surface preparation .7 5.2 Finished polyurethane lining 7 5.3 Pipe ends 8 5.4 Repairs 8 5.5 Marking .8 5.6 Non porosity .9 5.7 Hardness .9 5.8 Adhesion .9 6 Performance Requirements
13、9 6.1 Chemical resistance 9 6.2 Indirect Impact strength 9 6.3 Resistance to ovalization 9 6.4 Elongation at break. 10 6.5 Specific lining resistance . 10 6.6 Abrasion resistance (only for waste water application) . 10 6.7 Light ageing . 10 6.8 Materials in contact with water intended for human cons
14、umption . 11 7 Test Methods . 11 7.1 Routine tests . 11 7.2 Performance tests. 12 Annex A (informative) Quality assurance 15 A.1 General . 15 A.2 Performance test; DN grouping 16 A.3 Quality assessment system . 17 Annex B (informative) Lining process and materials 18 B.1 Lining application process 1
15、8 B.2 Material properties 18 B.3 Field of use, characteristics of transported waters 19 Annex C (informative) Packaging . 20 Bibliography . 21 DIN EN 15655:2009-06 EN 15655:2009 (E) 3 Foreword This document (EN 15655:2009) has been prepared by Technical Committee CEN/TC 203 “Cast iron pipes, fitting
16、s 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 July 2009, and conflicting national standards shall be withdrawn at the latest by Ju
17、ly 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards org
18、anizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
19、Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 15655:2009-06 EN 15655:2009 (E) 4 Introduction This standard is in conformity with the general requirements already established by CEN/TC 164 in the field of water supply (e.g. potable water) and CEN/TC 165 in the
20、 field of waste water. In respect of potential adverse effects on the quality of water intended for human consumption, caused by the product covered by this standard: a) no information is provided as to whether the product may be used without restriction in any of the member states of the EU or EFTA
21、; b) it should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the characteristics of this product remain in force. DIN EN 15655:2009-06 EN 15655:2009 (E) 5 1 Scope This European Standard defines the requirements and
22、 test methods applicable to factory applied internal polyurethane high duty corrosion protection of buried ductile iron pipes and fittings conforming to EN 545, EN 598 and EN 969 for use at permanent operating temperatures up to 45 C. 2 Normative references The following referenced documents are ind
23、ispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 545, Ductile iron pipes, fittings, accessories and their joints for water pipelines Requ
24、irements and test methods EN 598:2007, Ductile iron pipes, fittings, accessories and their joints for sewerage applications Requirements and test methods EN 969, Ductile iron pipes, fittings, accessories and their joints for gas pipelines Requirements and test methods EN ISO 4624, Paints and varnish
25、es Pull-off test for adhesion (ISO 4624:2002) ISO 62:2008, Plastics Determination of water absorption ISO 5273:1995, Plastics Determination of tensile properties Part 3: Test conditions for films and sheets ISO 868, Plastics and ebonite Determination of indentation hardness by means of a durometer (
26、Shore hardness) ISO 85011:2007, Representative photographic examples of the change of appearance imparted to steel when blast-cleaned with different abrasives ISO 85031:1988, Preparation of steel substrates before application of paints and related products Surface roughness characteristics of blast-
27、cleaned steel substrates Part 1: Specifications and definitions for ISO surface profile comparators for the assessment of abrasive blast-cleaned surfaces 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 ductile iron cast iron used for pipes, f
28、ittings and accessories in which graphite is present substantially in spheroidal form 3.2 adhesion force per unit area, applied perpendicular to the surface, which is necessary to separate the lining from its substrate 3.3 indirect impact strength impact energy applied from outside of the pipe with
29、deformation to which a lining can withstand without damage under defined test conditions DIN EN 15655:2009-06 EN 15655:2009 (E) 6 3.4 hardness resistance of the lining to the penetration of a ball under defined test conditions 3.5 minimum lining thickness lower limit calculated for the polyurethane
30、lining thickness by the mean value (x) minus two times the standard deviation () 3.6 non porosity absence of holidays in a high voltage test under defined test conditions 3.7 polyurethane lining factory applied lining which consists of polyurethane on the inside of the pipe or fitting Key 1 gasket s
31、eat 2 pipe barrel 3 spigot end 4 lining 5 internal socket profile Figure 1 Location of the defined pipe areas Key 1 lining 2 internal socket profile Figure 2 Location of the defined fitting areas DIN EN 15655:2009-06 EN 15655:2009 (E) 7 3.9 specific lining resistance surface related electric resista
32、nce of the lining perpendicular to the pipe wall 3.10 performance test test which is done once and is repeated according to a schedule or after relevant change of lining material and/or material supplier or change in process application 3.11 routine test test carried out to control the manufacturing
33、 process with a frequency defined by the manufacturer 4 Ordering information The following information shall be supplied to the manufacturer by the purchaser. Ductile iron pipes according to EN 545, EN 598 or EN 969 but internally coated in accordance with this European Standard shall be specified i
34、n the purchasers enquiry and order by reference to this standard, e.g. 5 000 m of ductile iron pipe DN 300 according to EN 545, internal polyurethane lining according to EN 15655; or 10 pieces of ductile cast iron fittings DN 300 according to EN 598, internal PUR-lining according to EN 15655. 5 Tech
35、nical Requirements 5.1 Surface preparation Prior to application of the polyurethane lining, the surface of the pipes or fittings to be lined shall be clean, free of rust, loose constituent materials, dirt, oil, grease and moisture. In cold weather, or anytime when the moisture tends to condense on t
36、he surface of the pipe or fitting, it shall be uniformly warmed for sufficient time to dry prior to cleaning. The surface temperature shall be maintained at least 5 C above the dew point. The surface shall be prepared by grinding (only for pipes) and grit blasting and be in compliance with level Sa
37、2-2.5 of ISO 8501-1 when checked according to 7.1.1. The surface roughness Rain accordance with ISO 8503-1 shall be at least 12,5 micrometers which is equivalent to an anchored profile Rzof 63 micrometers or higher if required by the lining material provider or manufacturer. 5.2 Finished polyurethan
38、e lining 5.2.1 Appearance and continuity The polyurethane lining shall be of: uniform colour, except the spigot end and the internal socket profile which may be of a different colour and different coating material; uniform appearance and smoothness except for admissible repairs; free of visible defe
39、cts (pinholes, bubbles, blisters, wrinkles, cracks or voids). DIN EN 15655:2009-06 EN 15655:2009 (E) 8 Slight superficial variations of colour or brilliance due to repairs or prolonged exposure to sunlight or contact with other pipes are permissible. 5.2.2 Minimum lining thickness When measured in a
40、ccordance with 7.1.3, the lining thickness shall be as indicated in Table 1a for drinking water application and in Table 1b for waste water application. Table 1a Lining thickness of pipes and fittings for drinking water transport according to EN 545 DN mean value x m (x-2) m 80 - 200 1 300 800 200 1
41、 500 Table 1b Lining thickness of pipes and fittings for waste water transport according to EN 598 DN mean value x m (x-2) m 80 - 200 1 300 800 250 - 700 1 500 800 700 1 000 1 800 1 000 1 000 2 000 1 000 5.3 Pipe ends Spigot end and internal socket profile (see Figure 1) shall be coated with one of
42、the following: epoxy lining in accordance with EN 14901; polyurethane in accordance with this standard with a minimum lining thickness of 150 m; bituminous paint (only for drinking water); multilayer of epoxy, PUR-Epoxy. When spigot end and socket entrance are coated with epoxy or polyurethane, the
43、manufacturer shall ensure that the joint can be assembled. The coating thickness shall be checked according to 7.1.4. 5.4 Repairs In case of holidays or damage, repairs shall be carried out in accordance with the manufacturers written instructions. Repairs shall be checked according to 7.1.5. Fresh
44、surfaces of pipes cut on site shall be protected by appropriate coatings according to the manufacturers written instructions. 5.5 Marking All pipes shall be marked legibly and durably according to the pipe standard EN 545, EN 598 or EN 969. Reference to this standard shall be legibly and durably app
45、lied by any method upon the external surface. DIN EN 15655:2009-06 EN 15655:2009 (E) 9 This shall be checked according to 7.1.6. 5.6 Non porosity When tested in accordance with the test method described in 7.1.7 with a tension of 3,0 kV for mean lining thickness up to 1 500 m and 4 kV for mean linin
46、g thickness greater than 1 500 m, the lining shall be free from porosity. 5.7 Hardness When assessed by testing in accordance with 7.1.8, the hardness of the polyurethane lining shall be at minimum 70 Shore D. Testing temperature shall be within the range of 10 C to 30 C. 5.8 Adhesion The adhesion s
47、hall be at least 8 MPa when tested in accordance with 7.1.9. 6 Performance Requirements 6.1 Chemical resistance The chemical resistance is determined by the change in weight of the polyurethane lining. When tested in accordance with 7.2.1, the weight increase resp. weight loss shall meet the require
48、ments given in Table 2 when compared to the original weight. Table 2 Weight changes requirements Property Unit Test method Clause Requirement Mass change after 100 days in deionised water at 50 C % Immersion test 7.2.1.1 Less than 15 % weight increase Mass change after subsequent drying % ISO 62, me
49、thod 2 Less than 2 % weight loss Mass change after 100 days in sulphuric acid 10 % at 50 C % Immersion test 7.2.1.2 Less than 10 % weight increase Mass change after subsequent drying % ISO 62, method 2 Less than 4 % weight loss 6.2 Indirect Impact strength Due to handling activities, the PU-lined pipes may fall or get impacts from outside with minor plastic deformations which can cause damages on the lining. The minimum impact strength shall be determ
