Waste fittings for sanitary appliances

BRITISH STANDARD BS EN 274-2:2002 Incorporating Corrigendum No. 1 Waste fittings for sanitary appliances Part 2: Test methods The European Standard EN 274-2:2002 has the status of a British Standard ICS 91.140.70

BS EN 274-2:2002 National foreword This British Standard is the official English language version of EN 274-2:2002. Together with BS EN 274-1:2002 and BS EN 274-3:2002 it supersedes BS EN 274:1993, BS EN 329:1997, BS EN 411:1995, BS 3380:1982 and BS 3943:1979, which are withdrawn. The obsolescent BS 1184:1976 is also withdrawn. WARNING. The national foreword to BS EN 274:1993 cautioned that the incorrect use of products conforming to that standard in a UK waste water system could result in a health hazard. This is still true for some of the products under the scope of this standard. To be used satisfactorily with traditional UK installations having 1!'',1"'' and 2'' Imperial-sized threaded outlets, the internal diameter of the threaded end of the waste outlet should be not less than 36 mm, 41.7 mm or 51.9 mm respectively, this to extend for a least 7 mm from the threaded end of the waste outlet. The UK participation in its preparation was entrusted to Technical Committee B/505, Wastewater engineering, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/european committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled International Standards Correspondence Index, or by using the Search facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. This British Standard, having been prepared under the direction of the Building and Civil Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 4 September 2002 Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 10, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments BSI 16 February 2004 14957 Corrigendum No. 1 16 February 2004 Correction to title and revision of national foreword ISBN 0 580 40337 8

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 274-2 January 2002 ICS 91.140.70 Supersedes together with EN 274-1:2002 and EN 274-3:2002 the EN 274:1992, EN 329:1994 and EN 411:1995 English version Waste fittings for sanitary appliances - Part 2: Test methods Dispositifs de vidage des appareils sanitaires - Partie 2: Méthodes d'essai Ablaufgarnituren für Sanitärausstattungsgegenstände - Teil 2: Prüfverfahren This European Standard was approved by CEN on 23 December 2001. 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 such national standards may be obtained on application to the 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 language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 274-2:2002 E

Contents page Foreword...3 1 Scope...3 2 Normative references...3 3 Temperature cycling test...3 4 Dimensional requirements...4 5 Hydraulic requirements...5 5.1 Measurement of flow rates...5 5.2 Flow rate of waste outlet...6 5.3 Flow rate of waste outlet with a trap...6 5.4 Flow rate of trap...8 5.5 Flow rate of overflow...9 6 Leaktightness...10 6.1 Leaktightness of waste outlet with plug or flap...10 6.2 Leaktightness of traps...10 2

Foreword This European Standard has been prepared by Technical Committee CEN/TC 165, "Wastewater engineering", the secretariat 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 July 2002, and conflicting national standards shall be withdrawn at the latest by July 2002. Together with Parts 1 and 3 of this standard this European Standard supersedes EN 274:1992, EN 329:1994 and EN 411:1995. The other parts of the European Standard contain the necessary statements on dimensional and hydraulic requirements and quality control of waste fittings for sanitary appliances. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 1 Scope This standard specifies test methods for the requirements of waste outlets, traps and overflows in accordance with EN 274-1:2002. NOTE All figures in this standard are diagrammatic only. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 274-1:2002, Waste fittings for sanitary appliances Part 1: Requirements. 3 Temperature cycling test Waste outlets and traps shall be subjected to the passage of hot and cold water according to the following schedule for 5 cycles: a) X l/s of water of a temperature of 95 0 2 C over a period of 15 min at a constant flowrate and b) X l/s of water of a temperature of (20 ± 5) C over a period of 10 min at a constant flowrate. The value of X is the minimum flow rate as given in Table 3 of EN 274-1:2002, but with a maximum of 0,5 l/s. The water shall enter the waste outlet having the required temperature. A drainage period between cycles of up to 5 s is permissible. 3

The test arrangement is shown in Figure 1. Key 1 Control unit 2 Waste fitting 3 Hot water supply 4 Cold water supply 5 Discharge M = solenoid valve R = regulating valve Figure 1 Test arrangement for temperature cycling test 4 Dimensional requirements The dimensions of waste outlets and traps and the depth of water seal shall be measured using conventional methods. 4

5 Hydraulic requirements 5.1 Measurement of flow rates Dimensions in millimetres Key 1 Device to prevent turbulence 2 Flowmeter 3 Overflow hole 4 Regulating valve 5 Overflow level 6 Level U 7 Level C 8 Waste outlet hole Figure 2 Test tank for measuring flow rates - The waste fitting to be tested shall be fitted to the test tank, which is preferably made of transparent material (see Figure 2). If in the case of waste outlets fitted with: a plug, it is removed; a flap, it is adjusted to obtain the maximum lift, however it has to be tight when closed. - Fill the test tank with water up to the test level as follows: test level C = (120 ± 2) mm for waste outlets and traps for basins, bidets, shower trays and kitchen sinks; 5

test level U = (300 ± 2) mm for waste outlets and traps for baths. The outlet is blocked by hand until the test level is reached. - Stabilize the test level by adjusting the water inflow by means of a regulating valve. - The flow rate of the waste outlets and traps is the flow rate indicated by the flowmeter, when the test water level C or U is stabilized. 5.2 Flow rate of waste outlet The flow rate of waste outlet is tested using a flow stabilizing tube as shown in Figure 3. The flow rate stabilization tube has an internal diameter of - 30 mm for waste outlets for basins and bidets; - 36 mm for waste outlets for shower trays, baths and kitchen sinks. Proceed in accordance with 5.1. Dimensions in millimetres Figure 3 Arrangement for measuring flow rate of waste outlet 5.3 Flow rate of waste outlet with a trap The flow rate of waste outlet with a trap is tested with the waste outlet and trap fixed as shown in Figure 4. If an overflow is fitted, it shall be open. When a waste fitting with a horizontal outlet does not have a straight part of a minimum length of 50 mm, a horizontal stabilizing tube, 300 mm long, shall be attached to it. The diameter of the stabilizing tube shall correspond to that of the waste fitting outlet. 6

In the case of waste fitting with adjustable outlet angles the outlet pipe shall be positioned in a horizontal plane. Proceed in accordance with 5.1. Dimensions in millimetres Figure 4 Arrangement for measuring flow rate of waste outlet with a trap In the case of a waste outlet with integral trap for shower trays with a diameter G of 87 mm (see Table 1 of EN 274-1:2002) use the test arrangement as given in Figure 5 and proceed as follows: - Adjust the fitting to the minimum clamping height. - Locate the waste fitting in the test tank. - Fill the test tank up to measuring level. Then adjust the water flow to give a constant test level of (15 ± 1) mm above the measuring level. - When measuring level is by adjusting the flow rate stabilized, the flow rate of the waste fitting is the flow rate indicated by the flowmeter. 7

Dimensions in millimetres Key 1 Test level 2 Reference level Figure 5 Arrangement for measuring flow rate of 87-mm-shower tray waste outlet 5.4 Flow rate of trap The flow rate of a trap without waste outlet is tested using an appropriate reference outlet as shown in Figure 6. In the case of a trap with adjustable height it shall be measured at the minimum height. 8

Dimensions in millimetres Figure 6 Reference waste outlets 5.5 Flow rate of overflow The flow rate of an overflow is tested using the test arrangement as shown in Figure 7, either a flow stabilizing tube in accordance with 5.2 or, in the case of a waste outlet with trap and overflow the procedure shall be in accordance with 5.3. Figure 7 Arrangement for measuring flow rate of overflow 9

- Close the waste outlet at the inside of test tank and fill the test tank with water up to the test level above the centre line of the overflow opening. (60 ± 2) mm for baths and shower trays, (30 ± 2) mm for kitchen sinks, wash basins and bidets. Stabilize this overflow level in accordance with Figure 2 by adjusting the water inflow by means of a regulating valve. - The flow rate of the overflow is the flow rate indicated by the flowmeter, when the water level is stable at the required level. 6 Leaktightness 6.1 Leaktightness of waste outlet with plug or flap - Fit the waste outlet to the bottom of the test tank (see Figure 2) with the plug in position or the flap closed. - Fill the test tank with water to a height of 120 mm and collect any water, which flows past the waste outlet flap or plug during a period of 1 h. - Measure the quantity of water collected. 6.2 Leaktightness of traps - Subject all trap parts and connections (see Figure 8) to a water pressure of 0,01 MPa (0,1 bar) for a period of 5 min. For traps which have been subjected to a temperature cycling test, the leaktightness shall be tested immediately after the test. Dimensions in millimetres Key 1 Inlet closed 10 Figure 8 Arrangement to test the tightness of traps

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