1、May 2012DEUTSCHE NORM DIN-Normenausschuss Wasserwesen (NAW)DIN-SprachendienstEnglish price group 19No 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 Ge
2、rman Standards (DIN-Normen).ICS 93.025!$lq“1987378www.din.deDDIN 1988-200Codes of practice for drinking water installations Part 200: Installation Type A (closed system) Planning, components, apparatus, materials; DVGW Code of practice,English translation of DIN 1988-200:2012-05Technische Regeln fr
3、Trinkwasser-Installationen Teil 200: Installation Typ A (geschlossenes System) Planung, Bauteile, Apparate, Werkstoffe; Technische Regel des DVGW,Englische bersetzung von DIN 1988-200:2012-05Directives techniques pour installations deau potable Partie 200: Installation Type A (systme ferm) Planifica
4、tion, lments de construction, appareils, matriaux; Directive technique DVGW,Traduction anglaise de DIN 1988-200:2012-05Together with DIN EN 806-2:2005-06, supersedes DIN 1988-2:1988-12 and DIN 1988-5:1988-12;supersedes DIN 1988-7:2004-12Supersedes: see belowwww.beuth.deDocument comprises 51 pages03.
5、16 DIN 1988-200:2012-05 2 Contents A comma is used as the decimal marker. Page Foreword . 4 1 Scope 6 2 Normative references 6 3 General requirements . 13 3.1 Water supply 13 3.2 Basic concepts 14 3.3 Underground pipework . 16 3.4 Materials, components and appliances 16 3.5 Design flow rates . 17 3.
6、6 Operating temperature 17 3.7 Drinking water hygiene . 17 3.8 Documentation for design and installation 18 3.9 Sampling points. 18 3.10 Building services control rooms, services shafts and ducts . 18 4 Private water supply . 19 5 Materials . 19 5.1 Choice of material . 19 5.2 Pipe joints 19 5.3 Mat
7、erials used in pipe joint assemblies 19 5.4 Auxiliary materials 19 6 Components . 20 6.1 Stop valves . 20 6.2 Expansion joints 20 6.3 Hoses 20 6.4 Circulation valves 20 6.5 Taps 20 6.6 Protection units (backflow prevention units) . 21 6.7 Pressure relief valves . 21 6.8 Water leak detectors . 21 6.9
8、 Appliances . 21 6.10 Expansion vessels 21 7 Pipework inside buildings 22 7.1 Isolation 22 7.2 Wall and floor penetrations 22 8 Cold drinking water supply 23 8.1 Drinking water taps . 23 8.2 Differentiation and identification of pipes and components 23 8.3 Supply and distributing pipes 24 8.4 Electr
9、ical isolators 25 9 Hot water systems . 25 9.1 General . 25 9.2 Components . 25 9.3 Taps and mixing valves 27 9.4 Surface temperatures . 28 9.5 Connections between cold and hot water pipes 28 9.6 Additional requirements . 28 9.7 Water heaters . 28 DIN 1988-200:2012-05 3 Page 10 Prevention of burstin
10、g 30 10.1 General . 30 10.2 Energy control . 30 10.3 Pressure control 31 10.4 Expansion water 32 10.5 Pipework 33 11 Guidelines for water meter installations. 34 11.1 General . 34 11.2 Selection 34 11.3 Location accessibility 34 11.4 Household water meters 35 12 Water conditioning 35 12.1 General .
11、35 12.2 Basic requirements . 35 12.3 Aspects of water conditioning . 36 12.4 Mechanical filters 37 12.5 Chemical dosing . 37 12.6 Softening by ion exchange 38 12.7 Descalers . 38 12.8 Disinfection by ultraviolet radiation 39 13 Noise insulation, fire protection and damp proofing 39 13.1 Noise insula
12、tion 39 13.2 Fire protection . 40 13.3 Damp proofing . 40 14 Protection of drinking water installations against temperatures external to pipes, fittings and appliances . 40 14.1 Freezing . 40 14.2 Further requirements to be met by pipe insulation and other coverings . 40 15 Pressure boosting . 43 16
13、 Pressure reducing valves 43 16.1 General . 43 16.2 Installation . 43 16.3 Sizing 44 17 Combined drinking water and firefighting services 45 18 Prevention of corrosion damage . 45 18.1 Combination of dissimilar materials . 45 18.2 Cathodic corrosion protection 45 18.3 Prevention of external corrosio
14、n . 46 Annex A (normative) List of suitable materials . 48 Annex B (normative) Terms and definitions 50 Bibliography . 51 DIN 1988-200:2012-05 4 Foreword This standard has been prepared by Working Committee NA 119-04-07 AA Husliche Wasserversorgung of the Normenausschuss Wasserwesen (Water Engineeri
15、ng Standards Committee). In response to the publication of European Standards on drinking water installations developed by Technical Committee CEN/TC 164 “Water supply”, which have been adopted as national German Standards, the German working committee decided to review the content of the DIN 1988 s
16、eries “Codes of practice for drinking water installations” with the intention of preparing a comprehensive and consistent set of standards. To make up for the fact that the standards developed at European level do not reach the depth required by users in Germany, it was necessary to develop suppleme
17、ntal German specifications, which have been published again as the 1988 series for reasons of consistency. In order to distinguish the “new” DIN 1988 series from the previous one, the individual parts of the series have been assigned three-digit numbers. To ensure that the revised standards find wid
18、e acceptance among specialists, the revision of the series has been performed in stages. The Working Committee would like to bring attention to the fact that the importance of this part of the new series has already been firmly established among the users. It should be noted that the structure of th
19、e present standard is based on that of DIN EN 806-2:2005-06. Although the headings of clauses have been adopted from the European Standard, their numbering differs slightly. The standard only includes additional requirements from DIN 1988-2, DIN 1988-5, and DIN 1988-7 that are not specified in the E
20、uropean Standard, as well as a number of requirements that have been added to reflect the current state of the art. Currently, the DIN 1988 series of standards consists of the following parts, under the general title Codes of practice for drinking water installations: Part 100, Protection of drinkin
21、g water, drinking water quality control; DVGW Code of practice Part 200, Installation Type A (closed system) Planning, components, apparatus, materials; DVGW Code of practice Part 300, Pipe sizing; DVGW Code of practice Part 500, Pressure boosting stations with RPM-regulated pumps; DVGW Code of prac
22、tice Part 600, Drinking water installations in connection with fire fighting and fire protection installations; DVGW Code of practice DIN 1988-200:2012-05 5 Amendments This standard differs from DIN 1988-2:1988-12, DIN 1988-5:1988-12 and DIN 1988-7:2004-12 as follows: a) terms and definitions have b
23、een added; b) specifications from DIN 1988-2:1988-12, DIN 1988-5:1988-12 and DIN 1988-7:2004-12 that have not been included in DIN EN 806-2:2005-06 are included here and have been amended to reflect the current state of technology. Previous editions DIN 1988: 1930-08, 1940-09, 1955-03, 1962-01 DIN 1
24、988-2: 1988-12 DIN 1988-5: 1988-12 DIN 1988-7: 1988-12, 2004-12 DIN 1988-200:2012-05 6 1 Scope This standard applies in conjunction with DIN EN 806-2 for the design of type A (closed system) drinking water installations in buildings and their premises. It describes design principles and suitable com
25、ponents, appliances and materials for the installation of such systems. It supplements the specifications of DIN EN 806-2 and specifies supplemental requirements, giving due consideration to German national technical rules and legislation. DIN 2001-1 applies to small systems, while DIN 2001-2 applie
26、s for non-stationary systems. For the purposes of this standard, the terms and definitions in Annex B apply. NOTE Including the terms and definitions in Annex B makes it possible to directly compare the following clauses with those having the same numbering and titles in DIN EN 806-2. 2 Normative re
27、ferences The following referenced documents are indispensable 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. DIN 1053-1, Masonry Part 1: Design and c
28、onstruction DIN 1988-100, Codes of practice for drinking water installations Part 100: Protection of drinking water, drinking water quality control; DVGW Code of practice DIN 1988-300, Codes of practice for drinking water installations Part 300: Pipe sizing; DVGW Code of practice DIN 1988-500, Codes
29、 of practice for drinking water installations Part 500: Pressure boosting stations with RPM-regulated pumps; DVGW Code of practice DIN 1988-600, Codes of practice for drinking water installations Part 600: Drinking water installations in connection with fire fighting and fire protection installation
30、s; DVGW Code of practice DIN 2000, Central drinking water supply Guidelines regarding requirements for drinking water, planning, construction, operation and maintenance of plants; Technical rule of the DVGW DIN 2001-1, Drinking water supply from small units and non stationary plants Part 1: Small un
31、its Guidelines for drinking water, planning, construction, operation and maintenance of plants; Technical rule of the DVGW DIN 2001-2, Drinking water supply from small units and non stationary plants Part 2: Non stationary units Guidelines for drinking water, planning, construction, operation and ma
32、intenance of units; Technical rule of the DVGW DIN 2403, Identification of pipelines according to the fluid conveyed DIN 3389, Isolating joints ready for installation into service pipes in gas and water supply Built-in-isolating joints Requirements and tests DIN 4109 (all parts), Sound insulation in
33、 buildings DIN 1988-200:2012-05 7 DIN 4708-1, Central heat-water-installations Terms and calculation-basis DIN 4708-2, Central heat-water-installations Rules for the determination of the water-heat-demand in dwelling-houses DIN 4753 (all parts), Water heaters and water heating installations for drin
34、king water and service water DIN 4807-5, Expansion vessels Part 5: Closed expansion vessels with membrane for drinking water installations Requirements, test, design and designation; DVGW Code of practice DIN 8077, Polypropylene (PP) pipes PP-H, PP-B, PP-R, PP-RCT Dimensions DIN 8078, Polypropylene
35、(PP) pipes PP-H, PP-B, PP-R, PP-RCT General quality requirements and testing DIN 8079, Chlorinated polyvinyl chloride (PVC-C) pipes Dimensions DIN 8080, Chlorinated polyvinyl chloride (PVC-C) pipes General quality requirements, testing DIN 14462, Water conduit for fire extinguishing Planning and ins
36、tallation of fire hose systems and water conduit for fire extinguishing DIN 16831 (all parts), Pipe fittings and joint assemblies for polybutene pressure pipes Type PB 125 DIN 16832 (all parts), Pipe joints and components of chlorinated poly(vinyl chloride) (PVC-C) for pipes under pressure PVC-C 200
37、 DIN 16833, Polyethylene pipes of raised temperature resistance (PE-RT) PE-RT Type I and PE-RT Type II General quality requirements, testing DIN 16834, Polyethylene pipes of raised temperature resistance (PE-RT) PE-RT Type I and PE-RT Type II Dimensions DIN 16836, Multilayer pipes Polyolefin-Alumini
38、um-Multilayer pipes General requirements and testing DIN 16892, Crosslinked polyethylene (PE-X) pipes General quality requirements, testing DIN 16893, Crosslinked polyethylene (PE-X) pipes Dimensions DIN 16894, Pipes of crosslinked medium density polyethylene (PE-MDX) General quality requirements an
39、d testing DIN 16895, Crosslinked medium density polyethylene (PE-MDX) pipes Dimensions DIN 16962 (all parts), Pipe Joints and Elements for Polypropylene (PP) Pressure Pipelines DIN 16968, Polybutene (PB) pipes General quality requirements and testing DIN 16969, Polybutene (PB) pipes Dimensions DIN 1
40、9628, Mechanical filters for drinking water installations Application of mechanical filters according to DIN EN 13443-1 DIN 19635-100, Dosing systems for drinking water installation Part 100: Requirements for application of chemical dosing systems in accordance with DIN EN 14812 DIN 1988-200:2012-05
41、 8 DIN 19636-100, Softeners (cation exchangers) for drinking water installation Part 100: Requirements for application of softeners in accordance with DIN EN 14743 DIN 30660, Sealing materials for gas and water supply as well as water heating systems Non-hardening jointing compounds and polytetraflu
42、oroethylene (PTFE) tapes for metallic threaded joints in domestic installations DIN 30670, Polyethylene coatings of steel pipes and fittings Requirements and testing DIN 30672, External organic coatings for the corrosion protection of buried and immersed pipelines for continuous operating temperatur
43、es up to 50 C Tapes and shrinkable materials DIN 30674-3, Sheathing ductile cast iron pipes Part 3: Zinc coating with protective sheathing DIN 30674-5, External protection of ductile cast iron pipes Polyethylene sleeving DIN 30675-1, External corrosion protection of buried pipes Corrosion protection
44、 systems for steel pipes DIN 30675-2, External corrosion protection of buried pipes Corrosion protection systems for ductile iron pipes DIN 50930-6, Corrosion of metals Corrosion of metallic materials under corrosion load by water inside of tubes, tanks and apparatus Part 6: Influence of the composi
45、tion of drinking water DIN EN 200, Sanitary tapware Single taps and combination taps for water supply systems of type 1 and type 2 General technical specification DIN EN 805, Water supply Requirements for systems and components outside buildings DIN EN 806-1, Specifications for installations inside
46、buildings conveying water for human consumption Part 1: General DIN EN 806-2, Specifications for installations inside buildings conveying water for human consumption Part 2: Design DIN EN 806-4, Specifications for installations inside buildings conveying water for human consumption Part 4: Installat
47、ion DIN EN 806-5, Specifications for installations inside buildings conveying water for human consumption Part 5: Operation and maintenance DIN EN 816, Sanitary tapware Automatic shut-off valves PN 10 DIN EN 817, Sanitary tapware Mechanical mixing valves (PN 10) General technical specifications DIN
48、EN 973, Chemicals used for treatment of water intended for human consumption Sodium chloride for regeneration of ion exchangers DIN EN 1057, Copper and copper alloys Seamless, round copper tubes for water and gas in sanitary and heating applications DIN EN 1111, Sanitary tapware Thermostatic mixing valves (PN 10) General technical specification DIN EN 1112, Sanitary tapware Shower outlets for sanitary tapware for wa
