DIN EN 15632-3-2015 District heating pipes - Pre-insulated flexible pipe systems - Part 3 Non bonded system with plastic service pipes - requirements and test methods German versio.pdf

1、March 2015 Translation by DIN-Sprachendienst.English price group 8No part of this translation 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 2

2、3.040.01!%AR7“2304720www.din.deDDIN EN 15632-3District heating pipes Pre-insulated flexible pipe systems Part 3: Non bonded system with plastic service pipes Requirementsand test methods;English version EN 15632-3:2010+A1:2014,English translation of DIN EN 15632-3:2015-03Fernwrmerohre Werkmig gedmmt

3、e flexible Rohrsysteme Teil 3: Nicht-Verbundsysteme mit Mediumrohren aus Kunststoff Anforderungen undPrfungen;Englische Fassung EN 15632-3:2010+A1:2014,Englische bersetzung von DIN EN 15632-3:2015-03Tuyaux de chauffage urbain Systmes de tuyaux flexibles prisols Partie 3: Systme non bloqu avec tube d

4、e service en plastique Prescriptions etmthodes dessai;Version anglaise EN 15632-3:2010+A1:2014,Traduction anglaise de DIN EN 15632-3:2015-03SupersedesDIN EN 15632-3:2010-06www.beuth.deDocument comprises 11 pagesIn case of doubt, the German-language original shall be considered authoritative.02.15DIN

5、 EN 15632-3:2015-03 2 A comma is used as the decimal marker. National foreword This document (EN 15632-3:2010+A1:2014) has been prepared by Technical Committee CEN/TC 107 “Prefabricated district heating pipe systems” (Secretariat: DS, Denmark). The responsible German body involved in its preparation

6、 was the DIN-Normenausschuss Heiz- und Raumlufttechnik (DIN Standards Committee Heating and Ventilation Technology), Working Committee NA 041-01-12 AA Werksmig gedmmte Mantelrohre fr Fernwrme. This standard includes Amendment A1 approved by CEN on 08 November 2014. The start and finish of text intro

7、duced or altered by amendment is indicated in the text by tags !“. Amendments This standard differs from DIN EN 15632-3:2010-06 as follows: a) Clauses 2, 4 and 5 have been modified. Previous editions DIN EN 15632-3: 2010-06 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15632-3:2010+A1 Decembe

8、r 2014 ICS 23.040.01 Supersedes EN 15632-3:2010English Version District heating pipes - Pre-insulated flexible pipe systems -Part 3: Non bonded system with plastic service pipes - Requirements and test methods Tuyaux de chauffage urbain - Systmes de tuyaux flexibles prisols - Partie 3: Systme non bl

9、oqu avec tube de service en plastique - Prescriptions et mthodes dessai Fernwrmerohre - Werkmig gedmmte flexible Rohrsysteme - Teil 3: Nicht-Verbundsysteme mit Mediumrohren aus Kunststoff - Anforderungen und Prfungen This European Standard was approved by CEN on 10 December 2009 and includes Amendme

10、nt 1 approved by CEN on 8 November 2014. 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 suc

11、h 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

12、 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, G

13、reece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMU

14、NG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15632-3:2010+A1:2014 EEN 15632-3:2010+A1:2014 (E) 2 Contents Page Foreword 3 Introduction .4 1 Scope 5 2 Norma

15、tive references 5 3 Terms and definitions .6 4 Classification 6 4.1 Operating temperatures and service life .6 4.2 Operating pressures 6 4.3 General requirements 7 4.4 Service pipes and fittings .7 4.4.1 Quality .7 4.4.2 Oxygen tightness .7 4.5 Sealing in linear direction .7 4.6 Water vapour permeat

16、ion .7 5 Test procedures .8 5.1 General 8 5.2 Temperature cycle test 8 Annex A (informative) Application of Miners Rule 9 DIN EN 15632-3:2015-03 EN 15632-3:2010+A1:2014 (E) 3 Foreword This document (EN 15632-3:2010+A1:2014) has been prepared by Technical Committee CEN/TC 107 “Prefabricated district

17、heating pipe systems”, the secretariat of which is held by DS. 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 June 2015, and conflicting national standards shall be withdrawn at the latest by Jun

18、e 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 15632-3:2010. This document includes Amendment 1 a

19、pproved by CEN on 2014-11-08. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. This document is one of a series of standards which form several parts of EN 15632, District heating pipes Pre-insulated flexible pipe systems: Part 1: Classification, g

20、eneral requirements and test methods; Part 2: Bonded system with plastic service pipes; requirements and test methods; Part 3: Non bonded system with plastic service pipes; requirements and test methods; Part 4: Bonded system with metal service pipes; requirements and test methods. According to the

21、CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hun

22、gary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 15632-3:2015-03 EN 15632-3:2010+A1:2014 (E) 4 Introduction Pre-insulated flexible non bonded pipe

23、 systems with plastic service pipes are widely used in district and local heating networks. This part of the series of standards for the various types of flexible pipe systems is intended to be used in connection with EN 15632-1 where the basic design criteria for flexible district heating pipes are

24、 specified. DIN EN 15632-3:2015-03 EN 15632-3:2010+A1:2014 (E) 5 1 Scope This European Standard provides requirements and test methods for flexible, pre-insulated, direct buried district heating pipes with plastic service pipes and no bonding between the layers of the pipes. This European Standard i

25、s valid for maximum operating temperatures of 95 C and maximum operating pressures up to 10 bar for a design lifetime of at least 30 years. This European Standard does not cover surveillance systems. NOTE For higher temperatures or for the transport of other fluids, for example potable water, additi

26、onal requirements and testing is needed. Such requirements are not specified in this European Standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the

27、latest edition of the referenced document (including any amendments) applies. EN 489, District heating pipes Preinsulated bonded pipe systems for directly buried hot water networks Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene !EN 15632-1:20

28、09+A1:2014“, District heating pipes Pre-insulated flexible pipe systems Part 1: Classification, general requirements and test methods !EN 15632-2:2009+A1:2014“, District heating pipes Pre-insulated flexible pipe systems Part 2: Bonded system with plastic service pipes; requirements and test methods

29、EN ISO 9080, Plastics piping and ducting systems Determination of the long-term hydrostatic strength of thermoplastics materials in pipe form by extrapolation (ISO 9080:2003) EN ISO 13760, Plastics pipes for the conveyance of fluids under pressure Miners rule Calculation method for cumulative damage

30、 (ISO 13760:1998) EN ISO 15875-1, Plastics piping systems for hot and cold water installations Crosslinked polyethylene (PE-X) Part 1: General (ISO 15875-1:2003) EN ISO 15875-2:2003, Plastics piping systems for hot and cold water installations Crosslinked polyethylene (PE-X) Part 2: Pipes (ISO 15875

31、-2:2003) EN ISO 15875-3, Plastics piping systems for hot and cold water installations Crosslinked polyethylene (PE-X) Part 3: Fittings (ISO 15875-3:2003) EN ISO 15875-5:2003, Plastics piping systems for hot and cold water installations Crosslinked polyethylene (PE-X) Part 5: Fitness for purpose of t

32、he system (ISO 15875-5:2003) EN ISO 15876-1, Plastics piping systems for hot and cold water installations Polybutylene (PB) Part 1: General (ISO 15876-1:2003) EN ISO 15876-2, Plastics piping systems for hot and cold water installations Polybutylene (PB) Part 2: Pipes (ISO 15876-2:2003) EN ISO 15876-

33、3, Plastics piping systems for hot and cold water installations Polybutylene (PB) Part 3: Fittings (ISO 15876-3:2003) DIN EN 15632-3:2015-03 EN 15632-3:2010+A1:2014 (E) 6 EN ISO 15876-5, Plastics piping systems for hot and cold water installations Polybutylene (PB) Part 5: Fitness for purpose of the

34、 system (ISO 15876-5) EN ISO 21003-2, Multilayer piping systems for hot and cold water installations inside buildings Part 2: Pipes (ISO 21003-2:2008) ISO 10147, Pipes and fittings made of crosslinked polyethylene (PE-X) Estimation of the degree of crosslinking by determination of the gel content IS

35、O 17455, Plastics piping systems Multilayer pipes Determination of the oxygen permeability of the barrier pipe 3 Terms and definitions For the purposes of this document, the terms and definitions given in !EN 15632-1:2009+A1:2014“ apply. 4 Classification 4.1 Operating temperatures and service life P

36、ipe systems according to this European Standard are designed for a service life of at least 30 years when operated at the following temperature profile: 29 years at 80 C + 1 year at 90 C + 100 h at 95 C. Other temperature/time profiles can be applied in accordance with EN ISO 13760 (Miners Rule). Fu

37、rther information is given in !EN 15632-2:2009+A1:2014“, Annex A. The maximum operating temperature shall not exceed 95 C. 4.2 Operating pressures Pipe systems according to this European Standard are designed for continuous operating pressures of 6, 8 or 10 bar. Table 1 defines maximum SDR ratios of

38、 the service pipe required to withstand the operating pressures. Table 1 SDR ratios required for different operating pressures Operating Pressure Service pipe 6 bar 8 bar 10 bar PE-X SDR 11 SDR 9 SDR 7.4 PB SDR 13,6 SDR 11 SDR 9 Multilayer pipes Wall thicknesses shall be calculated according to the

39、methods defined in EN ISO 21003-2 The SDR ratios in Table 1 are based on the regression curves of EN ISO 15875 and EN ISO 15876. Higher SDR ratios may be applied, if they are based on regression curves developed in accordance with EN ISO 9080. DIN EN 15632-3:2015-03 EN 15632-3:2010+A1:2014 (E) 7 4.3

40、 General requirements In addition to the general requirements defined in EN 15632-1 the following product specific requirements shall apply. 4.4 Service pipes and fittings 4.4.1 Quality Plastics service pipes and fittings shall comply with: 1) EN ISO 15875-1, EN ISO 15875-2, EN ISO 15875-3 and EN IS

41、O 15875-5 for pipes made of cross linked polyethylene (PE-X) !: additionally the pipes shall not fail when tested for 15 000 h at 110 C and at a hoop stress of 2,4 N/mm2. All requirements of the pipe and fitting according to EN ISO 15875-2 and EN ISO 15875-3 especially the degree of cross-linking sh

42、all be met before leaving the production site.“ 2) EN ISO 15876-1, EN ISO 15876-2, EN ISO 15876-3 and EN ISO 15876-5 for pipes made of polybutylene (PB) !: additionally the pipes shall not fail when tested for 15 000 h at 110 C and at a hoop stress of 2,2 N/mm2.“ 3) for multi-layer pipes EN ISO 2100

43、3-2. Deviating from these standards, temperature cycle tests on pipe systems and fittings shall be carried out with test cycle numbers specified in 5.2. 4.4.2 Oxygen tightness The oxygen diffusion of service pipes shall not exceed !1,8 mg/md“ at 80C when tested in accordance with ISO 17455. !deleted

44、 text“ 4.5 Sealing in linear direction The manufacturer of the system shall offer components to stop leakage in the linear direction at the end of each pipe section. These components shall be water tight when tested according to water tightness test of EN 489 (without the box load test). 4.6 Water v

45、apour permeation The pipe supplier shall give information about the risk of the water accumulation in the insulation dependent on the service conditions. NOTE PE-X and PB pipes are slightly open for diffusion of water from the media to the insulation. The rate of diffusion is increasing with the tem

46、perature. The casing is likewise open for diffusion from the insulation to the soil. The rate of this diffusion is depending upon the casing temperature and the water vapour partial pressure difference over the casing wall. For pipes installed under the ground water table there will always be a cert

47、ain build up of water directly under the casing. Experience shows that this build up is limited and not detrimental to the function although a certain loss of insulation capacity may be expected. DIN EN 15632-3:2015-03 EN 15632-3:2010+A1:2014 (E) 8 5 Test procedures 5.1 General Unless stated otherwi

48、se, all tests are to be carried out: 1) no sooner than 72 hours after production; 2) at room temperature; 3) on samples taken from coiled pipes. !Guidelines for testing frequencies and responsibilities are given in EN 15632-1:2009+A1:2014, Annex D.“ 5.2 Temperature cycle test The minimum test cycles

49、 and the cycle times for service pipe system tests are given in Table 2. Table 2 Test cycles Service pipe outer diameter d2Test cycles Cycle times d2 32 mm 2 000 30 min 40 mm d2 110 mm 1 000 30 min d2 110 mm 250 60 min DIN EN 15632-3:2015-03 EN 15632-3:2010+A1:2014 (E) 9 Annex A (informative) Application of Miners Rule For plastic service pipes the lifetime is influenced by the temperature profile. For this European Standard a calculatory temperature profile has