1、May 2015 Translation by DIN-Sprachendienst.English price group 14No 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 91
2、.140.80!%B_“2316058www.din.deDDIN EN 12050-4Wastewater lifting plants for buildings and sites Part 4: Non-return valves for faecal-free wastewater andwastewater containing faecal matter;English version EN 12050-4:2015,English translation of DIN EN 12050-4:2015-05Abwasserhebeanlagen fr die Gebude- un
3、d Grundstcksentwsserung Teil 4: Rckflussverhinderer fr fkalienfreies und fkalienhaltiges Abwasser;Englische Fassung EN 12050-4:2015,Englische bersetzung von DIN EN 12050-4:2015-05Stations de relevage deffluents pour les btiments et terrains Partie 4: Dispositifs anti-retour pour effluents contenant
4、ou non des matires fcales;Version anglaise EN 12050-4:2015,Traduction anglaise de DIN EN 12050-4:2015-05SupersedesDIN EN 12050-4:2001-05See start of applicationwww.beuth.deDocument comprises 32 pagesIn case of doubt, the German-language original shall be considered authoritative.04.15DIN EN 12050-4:
5、2015-05 2 A comma is used as the decimal marker. Start of application The start of application of this standard is 2015-05-01. It should be noted that, in Germany, CE conformity marking of construction products will be permitted once this standard has been listed in the Official Journal of the Europ
6、ean Union and/or the Bundesanzeiger (German Federal Gazette) and from the date given therein. For further information, users of this standard should refer to the websites of the European Commission or of the relevant building authority. The standard which this document replaces, DIN EN 12050-4:2001-
7、05, may be used in parallel with this standard during a specified transition period where such has been laid down in the Official Journal of the European Union and/or the Bundesanzeiger (German Federal Gazette). National foreword This document (EN 12050-4:2015) has been prepared by Technical Committ
8、ee CEN/TC 165 “Waste water engineering” (Secretariat: DIN, Germany). The preliminary work was done by Working Group WG 21 “Drainage systems inside buildings”. The responsible German body involved in its preparation was the DIN-Normenausschuss Wasserwesen (DIN Standards Committee Water Practice), Wor
9、king Committee NA 119-05-23 AA Abwasserhebeanlagen. Amendments This standard differs from DIN EN 12050-4:2001-05 as follows: a) Subclause 4.5 “Reaction to fire” has been added; b) Clause 6 “Assessment and verification of constancy of performance AVCP” has been updated in accordance with EU Construct
10、ion Products Regulation No 305/2011 (CPR); c) Annex ZA has been updated in accordance with EU Construction Products Regulation No 305/2011 (CPR); d) the standard has been editorially revised. Previous editions DIN EN 12050-4: 2001-05 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12050-4 March
11、 2015 ICS 91.140.80 Supersedes EN 12050-4:2000English Version Wastewater lifting plants for buildings and sites - Part 4: Non-return valves for faecal-free wastewater and wastewater containing faecal matter Stations de relevage deffluents pour les btiments et terrains - Partie 4: Dispositifs anti-re
12、tour pour effluents contenant ou non des matires fcales Abwasserhebeanlagen fr die Gebude- und Grundstcksentwsserung - Teil 4: Rckflussverhinderer fr fkalienfreies und fkalienhaltiges Abwasser This European Standard was approved by CEN on 17 January 2015. CEN members are bound to comply with the CEN
13、/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 Cen
14、tre 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 th
15、e 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, Nether
16、lands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All righ
17、ts of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12050-4:2015 EEN 12050-4:2015 (E) 2 Contents Page Foreword 4 1 Scope 5 2 Normative references 5 3 Terms, definitions, symbols and abbreviations .5 3.1 Terms and definitions .5 3.2 Symbols and abb
18、reviations 6 3.2.1 Symbols 6 3.2.2 Abbreviations .6 4 Materials and product characteristics .6 4.1 Materials .6 4.2 Mechanical resistance .6 4.3 Effectiveness 6 4.3.1 General 6 4.3.2 Connections .6 4.3.3 Solids passage .7 4.3.4 Cleanability .7 4.3.5 Nominal pressure of non-return valves .7 4.4 Inter
19、nal leakage 7 4.5 Reaction to fire .7 4.5.1 General 7 4.5.2 Non-return valves classified as Class A1 without the need for testing .8 4.5.3 Non-return valves classified according to test results 8 4.6 Durability 8 4.6.1 General 8 4.6.2 Durability of watertightness .9 4.6.3 Durability of effectiveness
20、 9 4.6.4 Durability of mechanical resistance 9 4.7 Noise level 9 4.8 Dangerous substances .9 5 Testing 9 5.1 General 9 5.2 Effectiveness testing 10 5.2.1 Faecal-free wastewater 10 5.2.2 Wastewater containing faecal matter . 10 5.2.3 Internal leakage . 10 5.2.4 Pressure testing 10 5.2.5 Testing of ba
21、ckwash devices 10 6 Assessment and verification of constancy of performance - AVCP . 10 6.1 General . 10 6.2 Type testing . 10 6.2.1 General . 10 6.2.2 Test samples, testing and compliance criteria 11 6.2.3 Test reports . 12 6.3 Factory production control (FPC) . 12 6.3.1 General . 12 6.3.2 Requirem
22、ents 12 6.3.3 Product specific requirements 15 6.3.4 Procedure for modifications 16 DIN EN 12050-4:2015-05 EN 12050-4:2015 (E) 3 7 Marking, labelling and packaging 16 7.1 Manufacturers declaration . 16 7.2 Marking . 16 Annex A (informative) Recommended materials . 17 Annex ZA (informative) Clauses o
23、f this European Standard addressing the provisions of the EU Construction Products Regulation 18 ZA.1 Scope and relevant characteristics . 18 ZA.2 Procedure for AVCP of non-return valves for faecal-free wastewater and wastewater containing faecal matter . 19 ZA.2.1 System(s) of AVCP 19 ZA.2.2 Declar
24、ation of performance (DoP) . 23 ZA.2.2.1 General 23 ZA.2.2.2 Content 23 ZA.2.2.3 Example of DoP 24 ZA.3 CE marking and labelling 26 Bibliography 30 DIN EN 12050-4:2015-05 EN 12050-4:2015 (E) 4 Foreword This document (EN 12050-4:2015) has been prepared by Technical Committee CEN/TC 165 “Wastewater en
25、gineering”, the secretariat of which is held by DIN. 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 September 2015 and conflicting national standards shall be withdrawn at the latest by December
26、2016. 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 12050-4:2000. This document has been prepared under
27、a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of the Regulation (EU) No. 305/2011. For relationship with EU Regulation, see informative Annex ZA, which is an integral part of this document. The standard series EN 12050
28、“Wastewater lifting plants for buildings and sites” consists of the following parts: Part 1: Lifting plants for wastewater containing faecal matter Part 2: Lifting plants for faecal-free wastewater Part 3: Lifting plants for limited applications Part 4: Non-return valves for faecal-free wastewater a
29、nd wastewater containing faecal matter The main changes with respect to the previous edition are listed below: a) reaction to fire added; b) paragraph title “Evaluation of conformity” changed to “Assessment and verification of constancy of performance AVCP” and updated; c) Annex ZA updated in accord
30、ance with “Implementation of the Construction Products Regulation (CPR) in harmonized standards” (adoption of the Regulation EU No. 305/2011); d) editorially revised. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to imple
31、ment this European Standard: 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,
32、 Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 12050-4:2015-05 EN 12050-4:2015 (E) 5 1 Scope This European Standard applies to non-return valves used for faecal-free wastewater and wastewater containing faecal matter lifting plants. This Standard specifies gen
33、eral requirements, basic construction and testing principles together with information on materials and the relevant assessment and verification of constancy of performance. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indis
34、pensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12050-1:2015, Wastewater lifting plants for buildings and sites Part 1: Lifting plants for wastewater conta
35、ining faecal matter EN 12050-2:2015, Wastewater lifting plants for buildings and sites Part 2: Lifting plants for faecal-free wastewater EN 12050-3:2015, Wastewater lifting plants for buildings and sites Part 3: Lifting plants for limited applications EN 13501-1, Fire classification of construction
36、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 20361, Liquid pumps and pump units - Noise test co
37、de - Grades 2 and 3 of accuracy (ISO 20361) 3 Terms, definitions, symbols and abbreviations For the purposes of this document, the following terms and definitions apply. 3.1 Terms and definitions 3.1.1 non-return valve part of a wastewater lifting plant that prevents backflow of wastewater from the
38、discharge pipe system which is either integrated in or a separate part of the plant 3.1.2 integrated non-return valve non-return valve which is a constructed part of the wastewater lifting plant - integrated in the plant or built in the plant by the manufacturer 3.1.3 backwash device part of the non
39、-return valve which allows draining of the discharge pipe system and venting of the pumping device 3.1.4 maximum pump operating pressure maximum hydrostatic pressure that the pumping device is capable to create DIN EN 12050-4:2015-05 EN 12050-4:2015 (E) 6 3.2 Symbols and abbreviations 3.2.1 Symbols
40、dipipe internal diameter, in mm Dssolids ball passage, in mm Q flow rate, in l/s H discharge head, in m v flow velocity, in m/s 3.2.2 Abbreviations AVCP assessment and verification of constancy of performance DN nominal diameter CWT classified without testing CWFT classified without further testing
41、SBI single burn item DoP declaration of performance FPC factory production control 4 Materials and product characteristics 4.1 Materials Materials used shall be adequate to meet the demands of installation and operation. Materials shall comply with the requirements given in 4.3 and shall not release
42、 dangerous substances (see 4.8). Examples of suitable materials for the construction of non-return valves are given in Annex A (informative). Only corrosion resistant materials or materials with a corrosion resistant protective coating shall be used. 4.2 Mechanical resistance When tested in accordan
43、ce with 5.2.4 no visible leakage shall appear during the test. Connections to the discharge pipe system shall resist longitudinal forces and withstand the maximum pump pressure. 4.3 Effectiveness 4.3.1 General Non-return valves shall automatically prevent wastewater flowing back from the discharge p
44、ipe system when the pumping operation stops. Non-return valves shall open automatically during pumping. When tested in accordance with 5.2.1, 5.2.2, 5.2.4 and 5.2.5 the non-return valves shall continue to operate. 4.3.2 Connections Connections to the discharge pipe system shall be capable of withsta
45、nding the maximum pump pressure of the wastewater lifting plant without leakage. Non-return valves which are put on the market as a separate component shall have pipeline connections complying with relevant pipe standards. DIN EN 12050-4:2015-05 EN 12050-4:2015 (E) 7 4.3.3 Solids passage Non-return
46、valves shall ensure that solids present in wastewater, particularly fibrous materials, cannot be retained. The ball passage (Ds) of a non-return valve shall be at least 80 % of the internal diameter (di) of the discharge pipe minus 4 mm i.e.: mm480S=id,D where: Dsis the ball passage, in millimetres;
47、 diis the internal diameter of the discharge pipe, in millimetres. 4.3.4 Cleanability It shall be possible to clean the non-return valves, though the cleaning possibility is not necessary in case of non-return valves of DN 100 3 4.5 Reaction to fire 4.5.1 General Where use of a non-return valve for
48、faecal free wastewater and wastewater containing faecal matter is subject to national regulatory requirements on reaction to fire, its reaction to fire performance shall be considered as that of its components (i.e. material approach) and shall be declared as one of the following classes, according
49、to EN 13501-1: a) Class A1, without the need for testing (CWT), when meeting the requirements, specified in 4.5.2, or otherwise; b) Class A1 to E, defined according to the results of testing the non-return valves constituent material(s), according to the standard(s) referred to in EN 13501-1, as specified in 4.5.3. DIN EN 12050-4:2015-05 EN 12050-4:2015 (E) 8 4.5.2 Non-return valves classified as Class A1 without the need for testing The reaction to fire performance of a non-return valve for faecal free wastewater and wastewater
