1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 251:2012Shower trays ConnectingdimensionsBS EN 251:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 251:2012. Itsupersedes BS EN 2
2、51:2003 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/503, Sanitary appliances.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions
3、of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012 ISBN 978 0 580 68819 5 ICS 91.140.70 Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published und
4、er the authority of theStandards Policy and Strategy Committee on 30 November 2012. Amendments issued since publicationDate T e x t a f f e c t e dBS EN 251:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 251 October 2012 ICS 91.140.70 Supersedes EN 251:2003English Version Shower trays - Co
5、nnecting dimensions Receveurs de douche - Cotes de raccordement Duschwannen - Anschlussmae This European Standard was approved by CEN on 18 August 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the stat
6、us 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 Centre or to any CEN member. This European Standard exists in three official versions (English, French, Ge
7、rman). 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 the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croat
8、ia, 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 Un
9、ited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 251:2012:
10、EBS EN 251:2012EN 251:2012 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Connecting dimensions 43.1 Basic dimensions 43.2 Dimensions of the waste outlet hole .53.3 Clearance around the waste outlet hole 73.4 Dimensions and clearance around the overflow hole .8Annex A (normative) D
11、etermination of dimensions 9A.1 Test apparatus .9A.2 Determination of the fit of the control gauge in the waste outlet hole 11BS EN 251:2012EN 251:2012 (E) 3 Foreword This document (EN 251:2012) has been prepared by Technical Committee CEN/TC 163 “Sanitary appliances”, the secretariat of which is he
12、ld by UNI. 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 April 2013, and conflicting national standards shall be withdrawn at the latest by April 2013. Attention is drawn to the possibility that
13、 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 251:2003. The main change to the document from the previous one is to include more defined informati
14、on for the waste control gauges shown in the Appendix A.1 According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, F
15、inland, 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 the United Kingdom. BS EN 251:2012EN 251:2012 (E)
16、 4 1 Scope This European Standard specifies requirements for the connecting dimensions for shower trays, regardless of the material used for their manufacture. This European Standard applies to shower trays used for domestic purposes and complements the standards for shower trays made from different
17、 materials, the existing standard on waste fittings (EN 274-1) in terms of their dimensional requirements. NOTE Only dimensions are compulsory. The shape of the appliance in the figures is for illustration only; it in no way prejudices the shape of the appliance which is left to the initiative of th
18、e manufacturer. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (inc
19、luding any amendments) applies. EN 274-1, Waste fittings for sanitary appliances Part 1: Requirements 3 Connecting dimensions 3.1 Basic dimensions The basic dimensions H, a, H1and h1shall comply with those given in Table 1 to enable compatibility with waste fittings in accordance with EN 274-1 (see
20、also Annex A). Table 1 Basic dimensions (see Figure 1) Designation Symbol Values mm Remarks Vertical distance between the axis of the overflow hole, if provided, and the plane of the waste outlet hole H 165 to 260 Horizontal distance between the axis of the waste outlet hole and the axis of the over
21、flow hole, if provided a 110 to 170 Standard type waste fitting in accordance with EN 274-1 170 With a waste fitting specified or provided by the manufacturer Distance between the floor and the plane of the waste outlet hole measured at the centre line of the waste outlet hole h11) 130 For all showe
22、r trays with overflow 85 For all shower trays Distance between the axis of the overflow hole, if provided, and the spillover H1 60 1)Only applicable when the trap is to be accommodated above the finished floor.BS EN 251:2012EN 251:2012 (E) 5 Key 1 details shown in Figure 4 2 details shown in Figure
23、2 3 plane of the waste outlet hole 4 floor Figure 1 Basic dimensions 3.2 Dimensions of the waste outlet hole The dimensions of the waste outlet hole shall be as given in Table 2 to enable compatibility with EN 274-1 (see also Annex A). BS EN 251:2012EN 251:2012 (E) 6 Table 2 Dimensions of the waste
24、outlet hole (see Figure 2) Designation Symbol Values mm Remarks Diameter of the waste outlet hole D2 5232+6232+9032+Distance between the contact diameter of the control gauge and the bottom of the shower tray around the waste outlet hole e 2 Contact diameter of the control gauge D3 70 When D2 = 52 m
25、m 85 When D2 = 62 mm 115 When D2 = 90 mm Contact cone angle 120 Height between the contact diameter of the control gauge and the plane of the waste outlet hole h2 6 to 16 When D2= 52 mm 6 to 25 When D2 = 62 mm or 90 mm Sealing surface for waste fitting s 3 Key 1 bottom of the shower tray around the
26、waste outlet hole 2 plane of the waste outlet hole Figure 2 Waste outlet hole BS EN 251:2012EN 251:2012 (E) 7 3.3 Clearance around the waste outlet hole The clearance around the waste outlet hole shall comply with the dimensions given in Table 3. Table 3 Clearance around the waste outlet hole (see F
27、igure 3) Designation Symbol Values mm Remarks Radius of the circular area which shall remain free for installation of the waste fitting R 60 When D2= 52 mm 65 When D2 = 62 mm 80 When D2 = 90 mm Thickness of reinforcing material around the waste outlet hole f 15 Figure 3 Clearance around the waste ou
28、tlet hole BS EN 251:2012EN 251:2012 (E) 8 3.4 Dimensions and clearance around the overflow hole The dimensions and the clearance around the overflow hole, if provided, shall comply with Table 4. Table 4 Dimensions and clearance around the overflow hole (see Figure 4) Designation Symbol Values mm Dia
29、meter of the overflow hole D1 5232+Diameter of the flat area intended to accommodate the gasket on reverse side D4 75 Diameter of the clearance around the overflow hole intended for the overflow fitting D5 80 Depth of the clearance around the overflow hole intended for the overflow fitting h4 60 Thi
30、ckness of the material within D4t1)2 to 10 Angle of flat area of D4in relation to the plane of the waste outlet hole (98 5) Diameter of the flat area intended to accommodate the gasket on the inside of the shower tray D6 65 1) The dimension t shall have a maximum variation of 1 mm NOTE The flatness
31、tolerance applies within D4. Figure 4 Dimensions and clearance around any overflow hole BS EN 251:2012EN 251:2012 (E) 9 Annex A (normative) Determination of dimensions A.1 Test apparatus a) Length and/or diameter measuring devices; b) Control gauges in accordance with Figures A.1, A.2 and A.3. Untol
32、eranced dimensions are for reference only. Dimensions in millimetres Figure A.1 Control gauge D2= 52 mm BS EN 251:2012EN 251:2012 (E) 10 Dimensions in millimetres Figure A.2 Control gauge D2= 62 mm Dimensions in millimetres Figure A.3 Control gauge D2= 90 mm BS EN 251:2012EN 251:2012 (E) 11 A.2 Dete
33、rmination of the fit of the control gauge in the waste outlet hole Place the relevant control gauge in the waste outlet hole and verify that: a) the waste outlet of the shower tray can be fitted in the waste hole (Dimension D2in Figure 2); b) the contact diameter of the control gauge (dimension D3 i
34、n Figure 2) makes contact with or is 1 mm of making contact over its entire circumference; c) the cylindrical portion of the control gauge is level with or projecting below the plane of the waste outlet hole (dimension h2in Figure 2); d) the top surface of the control gauge is below the level of the
35、 bottom of the shower tray around the waste outlet hole (dimension e in Figure 2); e) the contact cone angle (angle in Figure 2) is 120. This page deliberately left blankThis page deliberately left blankBSI is the independent national body responsible for preparing British Standards and other standa
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