1、BSI Standards PublicationBS EN 14055:2010+A1:2015WC and urinal flushing cisternsBS EN 14055:2010+A1:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of The UK participation in its preparation was entrusted to TechnicalCommittee B/503, Sanitary appliances.A list of
2、 organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication.ISBN 978 0 580 87729 2ICS 91.140.70Compliance with a British Standard canno
3、t confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2010.Amendments/corrigenda issued since publicationDate Text affected31 July 2015 Implementation of CEN amendment A1:2015 The British Standards
4、 Institution 2015. Published by BSI Standards Limited 2015The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“EN 14
5、055:2010+A1:2015. It supersedes BS EN 14055:2010 whichis withdrawn.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14055:2010+A1 June 2015 ICS 91.140.70 Supersedes EN 14055:2010English Version WC and urinal flushing cisterns Rservoirs de chasse deau pour WC et urinoirs Splksten fr WC-Becken und
6、 Urinale This European Standard was approved by CEN on 16 October 2010 and includes Amendment 1 approved by CEN on 6 April 2015. 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 standar
7、d without any alteration. Up-to-date lists and bibliographical references concerning such 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
8、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 the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republ
9、ic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN C
10、OMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14055:2010+A1:2015 EEN
11、 14055:2010+A1:2015 (E) 2 Contents Page Foreword 4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Classification 8 5 Requirements and test methods for class 1 products.8 5.1 Design .8 5.1.1 Flushing cistern equipment 8 5.1.2 Water supply connection 9 5.1.3 Supply piping .9 5.1.4 Rem
12、ovable parts 9 5.1.5 Connecting dimensions 9 5.1.6 Flush pipes 10 5.2 Hydraulic and mechanical characteristics . 13 5.2.1 Flush volume . 13 5.2.2 Water-saving devices . 14 5.2.3 Flush rate and impact force . 14 5.2.4 Overflow . 15 5.2.5 Inlet valve opening characteristics for water saving flushing .
13、 16 5.2.6 Safety margin Dimension “c” . 16 5.2.7 Backflow prevention, air gap, safety margin Dimension “a” 17 5.2.8 Outlet valve leaktightness . 17 5.2.9 Outlet valve reliability . 17 5.2.10 Operating force . 17 5.2.11 Durability . 17 5.3 Test methods . 18 5.3.1 General . 18 5.3.2 Flush volume . 18
14、5.3.3 Flush rate . 19 5.3.4 Determination of the overflow capacity 23 5.3.5 Inlet valve opening characteristics . 24 5.3.6 Determination of dimension “c” 24 5.3.7 Determination of dimension “a” 24 5.3.8 Outlet valve leak tightness 24 5.3.9 Outlet valve reliability test . 24 5.3.10 Operating force .
15、25 5.3.11 Impact force . 26 6 Functional requirements and test methods for class 2 products . 30 6.1 Inlet valve . 30 6.2 Backflow prevention . 30 6.3 Marking of flushing cistern 30 6.4 Warning pipe and overflow provision. 30 6.5 Flush volume . 30 6.5.1 Full flush 30 6.5.2 Reduced flush . 31 6.6 Flu
16、sh rate . 31 6.7 Physical endurance and leakage of flushing device . 31 6.8 Chemical endurance of flushing device . 31 BS EN 14055:2010+A1:2015EN 14055:2010+A1:2015 (E) 3 6.9 Durability 31 6.10 Test methods . 31 6.10.1 Inlet valve tests 31 6.10.2 Warning pipe and overflow provisions . 32 6.10.3 Flus
17、h volume test 32 6.10.4 Flush rate test 33 6.10.5 Physical endurance and leakage test of flushing device 34 6.10.6 Chemical endurance test of flushing device 35 6.10.7 Requirements for compatibility testing of class 2 products . 35 7 Requirements and test methods for class 3 products 36 7.1 Requirem
18、ents and test methods 36 7.2 Adjustment . 36 8 Acoustic characteristics . 36 9 Dangerous substances . 36 10 Marking . 36 11 Assessment and verification of constancy of performance AVCP . 39 11.1 General . 39 11.2 Type testing . 39 11.2.1 General . 39 11.2.2 Test samples, testing and compliance crite
19、ria 40 11.3 Factory production control (FPC) 42 11.3.1 General . 42 11.3.2 Equipment 42 11.3.3 Raw materials and components 42 11.3.4 Product testing and assessment . 42 11.3.5 Non-complying products 42 11.3.6 Corrective action . 43 Annex ZA (informative) !Clauses of this European Standard addressin
20、g the provisions of the EU Construction Products Regulation“ 44 Bibliography 53 BS EN 14055:2010+A1:2015EN 14055:2010+A1:2015 (E) 4 Foreword This document (EN 14055:2010+A1:2015) has been prepared by Technical Committee CEN/TC 163 “Sanitary appliances”, the secretariat of which is held by UNI. This
21、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 December 2015, and conflicting national standards shall be withdrawn at the latest by March 2017. Attention is drawn to the possibility that some of the
22、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 includes Amendment 1 approved by CEN on 6 April 2015. This document supersedes EN 14055:2010. The start and finish of text intr
23、oduced or altered by amendment is indicated in the text by tags !“. !This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of the EU Construction Products Regulation. For relationship with
24、EU Construction Products Regulation, see informative Annex ZA, which is an integral part of this document.“ According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cr
25、oatia, 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
26、 the United Kingdom. BS EN 14055:2010+A1:2015EN 14055:2010+A1:2015 (E) 5 1 Scope This European Standard specifies design, performance requirements and the test methods for WC and urinal flushing cisterns with flushing mechanism, inlet valve and overflow. This document covers flushing cisterns design
27、ed to be connected to drinking water installations inside buildings. This standard does not cover automatic valveless siphon flushing cisterns for flushing urinals. NOTE Flushing cisterns for one-piece WCs and close-coupled suites are covered by EN 997. 2 Normative references The following reference
28、d 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. EN 997:2003, WC pans and WC suites with integral trap EN 1717, Protectio
29、n against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow EN 13407:2006, Wall-hung urinals Functional requirements and test methods EN 14124, Inlet valves for flushing cisterns with internal overflow BS 1212-2:1990, Float operate
30、d valves Specification for diaphragm type float operated valves (copper alloy body) (excluding floats) BS 1212-3:1990, Float operated valves Specification for diaphragm type float operated valves (plastics bodied) for cold water services only (excluding floats) BS 1212-4:1991, Float operated valves
31、Specification for compact type float operated valves for WC flushing cisterns (including floats) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 valve-type flushing cistern cistern with integral valve outlet device, for storage and discharge
32、of a defined volume of flushing water for removal of excrement from a WC pan 3.2 valveless-type flushing cistern cistern with integral syphonic actuated outlet device, for storage and discharge of a defined volume of flushing water for removal of excrement from a WC pan NOTE Both types of flushing c
33、isterns are available, as detailed below: BS EN 14055:2010+A1:2015EN 14055:2010+A1:2015 (E) 6 Wall-hung independent low-level Built-in independent Wall-hung independent mid-level Wall-hung independent high-level One-piece integral (with WC pan) Close-coupled 3.3 close-coupled multiple use flushing c
34、istern close-coupled flushing cistern for use with different WC pans 3.4 independent flushing cistern flushing cistern mounted separately from a WC pan or urinal 3.5 outlet valve mechanism for opening and closing the outlet orifice of the flushing cistern 3.6 operating mechanism mechanism to open, a
35、nd if applicable, close the outlet valve 3.7 flush pipe connecting pipe between a flushing cisterns outlet and a WCs or urinals inlet 3.8 overflow device enabling release of excess water from a flushing cistern when water reaches a pre-determined level 3.9 inlet valve valve that controls and shuts o
36、ff the flow of water into a flushing cistern 3.10 overflow level water level corresponding to the upper edge of the overflow or to the lower edge of the overflow notch BS EN 14055:2010+A1:2015EN 14055:2010+A1:2015 (E) 7 3.11 maximum water level highest water level reached after flow stabilisation, i
37、n the event of continuous supply, as a result of malfunction of the inlet valve 3.12 critical water level highest water level in any part of the appliance, 2 s after the supply is cut off 3.13 residual water level water level after a full flush is completed 3.14 adjustable residual water level water
38、 level in a cistern, after (uninterrupted) flushing, when an outlet mechanism can be adjusted to the elevated residual water level 3.15 meniscus level level resulting from surface tension of water during overflowing 3.16 nominal water level water level when a flushing cistern is filled to the nomina
39、l flush volume 3.17 nominal flush volume volume of water indicated, when a flushing cistern is filled to the nominal water level 3.18 flush volume volume of water discharged from the flushing cistern during a flush cycle 3.19 safety margin c distance between the nominal water level determined by the
40、 manufacturer and the overflow level 3.20 flush rate volume of water flowing out of a flushing cistern as a function of time 3.21 test height distance between the seat of the outlet valve and the horizontal axis of the flush pipe 3.22 impact force force of the flushing water at the outlet of the flu
41、sh pipe 3.23 flushing device device fitted to a cistern to provide controlled measured volume(s) of water to a WC pan or suite for flushing 3.24 water-saving device flushing device that permits a part of the total flush volume to be delivered, e.g. acting as double-action mechanisms (interruptible)
42、or double-control mechanisms (dual control or dual flush) BS EN 14055:2010+A1:2015EN 14055:2010+A1:2015 (E) 8 3.25 warning level level of spill over of a vertically mounted warning pipe connection or the invert of a horizontally mounted warning pipe connection, or the level at which an equally effec
43、tive (warning) device would operate 3.26 short-term leak test leak test consisting of a 15 min wait after flushing then positioning paper designed to change colour when wet, under the flushing device for 10 min NOTE A leak is defined as being visible discharge of water amounting to more than three s
44、eparate drops. 3.27 long-term leak test leak test consisting of a 2 h wait after flushing then positioning paper designed to change colour when wet, under the outlet for 15 min NOTE A leak is defined as being visible discharge of water amounting to more than three separate drops. !3.28 product type
45、construction product with a set of representative performance levels or classes in relation to its Essential Characteristics, produced using a given combination of raw materials or other elements in a specific production process“ 4 Classification Flushing cisterns are classified as described below:
46、Class 1: Flushing cisterns tested in accordance with the requirements of Clauses 5 and 8 using a nominal flush volume of either 4 l, 5 l, 6 l, 7 l or 9 l. Class 2: Flushing cisterns tested in accordance with the requirements of Clauses 6 and 8 using a maximum flushing volume of 6 l, or a dual-flush
47、which combines a maximum flush of 6 l and a reduced flush no greater than two-thirds of the maximum flush. Class 3: Class 1 flushing cistern intended to be used in connection with urinals. 5 Requirements and test methods for class 1 products 5.1 Design 5.1.1 Flushing cistern equipment An equipped fl
48、ushing cistern comprises: a shell, provided with a removable lid or an access flap allowing access to components; an inlet valve complying with EN 14124; a flushing device; an overflow device; an operating mechanism; BS EN 14055:2010+A1:2015EN 14055:2010+A1:2015 (E) 9 a flush pipe, when the cistern
49、is for use with an independent WC pan. In special cases, a combined fitting providing the functions of filling, overflowing and evacuation is permissible. In this case, the fitting shall be designed to comply with the hygiene, physico-chemical, leaktightness, hydraulic, pressure resistance, acoustic and mechanical characteristics specified in EN 14124. The tests shall be performed on the flushing cistern as supplied. 5.1.2 Water supply connection The inlet valve can be connected to the cistern through: the side; the back; the underside;
