BS EN 16146:2012+A1:2014 BSI Standards Publication Sanitary tapware — Extractable shower hoses for sanitary tapware for supply systems type and type — General technical specification BRITISH STANDARD BS EN 16146:2012+A1:2014 National foreword This British Standard is the UK implementation of EN 16146:2012+A1:2014 It supersedes BS EN 16146:2012, which is withdrawn The start and finish of text introduced or altered by amendment is indicated in the text by tags Tags indicating changes to CEN text carry the number of the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 !" The UK participation in its preparation was entrusted by Technical Committee B/504, Water supply, to Subcommittee B/504/-8, Sanitary tapware A list of organizations represented on this subcommittee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2014 Published by BSI Standards Limited 2014 ISBN 978 580 85652 ICS 91.140.70 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2013 Amendments/corrigenda issued since publication Date Text affected 31 December 2014 Implementation of CEN amendment A1:2014 EUROPEAN STANDARD EN 16146:2012+A1 NORME EUROPÉENNE EUROPÄISCHE NORM November 2014 ICS 91.140.70 Supersedes EN 16146:2012 English Version Sanitary tapware - Extractable shower hoses for sanitary tapware for supply systems type and type - General technical specification Robinetterie sanitaire - Flexibles de douchettes extractibles pour robinetterie sanitaire pour les systèmes d'alimentation en eau de types et - Spécifications techniques générales Sanitärarmaturen - Ausziehbare Brauseschläuche für Sanitärarmaturen für Wasserversorgungssysteme vom Typ und Typ - Allgemeine technische Spezifikation This European Standard was approved by CEN on 10 November 2012 and includes Amendment approved by CEN on September 2014 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 CEN-CENELEC 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 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 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 United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 16146:2012+A1:2014 E BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) Contents Page Foreword Introduction Scope Normative references Terms and definitions Designation Marking 6.1 6.2 Materials Chemical and hygienic requirements Exposed surface condition and quality of coating 7.1 7.2 7.3 Dimensional characteristics 10 General 10 Connecting dimensions 10 Special cases 11 8.1 8.2 8.2.1 8.2.2 8.2.3 8.2.4 8.2.5 Hydraulic characteristics 11 General 11 Flow rate 11 Test method 11 Principle 11 Apparatus 12 Procedure 12 Requirements 12 9.1 9.2 9.2.1 9.2.2 9.2.3 9.2.4 9.2.5 9.3 9.3.1 9.3.2 9.3.3 9.3.4 9.3.5 9.4 9.4.1 9.4.2 9.4.3 9.4.4 9.4.5 9.5 9.5.1 9.5.2 9.5.3 Mechanical and leaktightness characteristics 13 General 13 Tensile strength 13 Test method 13 Principle 13 Apparatus 13 Procedure 14 Requirements 14 Flexing durability test 14 Test Method 14 Principle 14 Apparatus 14 Procedure 15 Requirement 16 Durability test 16 Test Method 16 Principle 16 Apparatus 16 Procedure 16 Requirement 16 Pressure resistance at elevated temperature 17 Test method 17 Principle 17 Apparatus 17 BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) 9.5.4 9.5.5 9.6 9.6.1 9.6.2 9.6.3 9.6.4 9.6.5 Procedure 18 Requirements 19 Thermal shock test 19 Test method 19 Principle 19 Apparatus 19 Procedure 20 Requirements 20 10 10.1 10.2 10.2.1 10.2.2 10.2.3 10.2.4 Rotary connection 20 General 20 Test Method 20 Principle 20 Apparatus 20 Procedure 21 Requirements 21 Annex A (informative) Pressure take-off tee 22 Bibliography 25 BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) Foreword This document (EN 16146:2012+A1:2014) has been prepared by Technical Committee CEN/TC 164 “Water supply”, the secretariat of which is held by AFNOR 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 May 2015, and conflicting national standards shall be withdrawn at the latest by May 2015 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 includes Amendment approved by CEN on September 2014 This document supersedes EN 16146:2012 The start and finish of text introduced or altered by amendment is indicated in the text by tags !" 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, 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 the United Kingdom BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) Introduction In respect of potential adverse effects on the quality of water intended for human consumption caused by the product covered by this standard, this standard provides no information as to whether the product may be used without restriction in any of the Member States of the EU or EFTA It should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the characteristics of this product remain in force BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) Scope This European Standard applies to hoses for extractable outlets of any material intended for equipping sanitary tapware for sinks and basins Such hoses will only be connected downstream of the obturator of the tapware The tapware will comply with EN 200, EN 817, EN 1111, EN 1286 or EN 1287 (see [1], [2], [3], [5] and [6]) Hoses intended to connect sanitary tapware to the water supplies are not covered by this standard This European Standard specifies: — the dimensional, mechanical and hydraulic characteristics with which the hose for extractable outlets shall comply; — the procedures for testing these characteristics Details of pressures and temperatures are given in Table ! Table — Conditions of use/Classifications Water supply system Operating range of hoses for extractable outlets Limits a Flow rates (Q) Recommended Class 1: Type see Figure Dynamic Pressure Dynamic Pressure 0,05 MPa ≤ P ≤ 0,5 MPa 0,1 MPa to 0,3 MPa (0,5 bar ≤ P ≤ bar) (1,0 bar to 3,0 bar) Q ≥ 0,25 l/s (15 l/min) Class 2: Q ≥ 0,15 l/s (9 l/min) Class E: Type see Figure Dynamic Pressure Dynamic Pressure 0,01 MPa to 0,2 MPa 0,02 MPa to 0,10 MPa (0,1 bar to 2,0 bar) (0,2 bar to 1,0 bar) 0,06 l/s < Q < 0,18 l/s (3,6 l/min < Q < 10,8 l/min.) Class H: 0,18 l/s ≤ Q (10,8 l/min ≤ Q) Temperature a T ≤ 70°C T ≤ 60°C See details in Table " BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) Key cold water hot water mains supply pipe (Supply pressures up to 1,0 MPa (10 bar)) water heater Figure — Type − Supply system - with a pressure range of 0,05 MPa to 1,0 MPa (0,5 bar to 10 bar) BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) Key cold water storage cistern (cover omitted for clarity) warning pipe vent pipe hot water cylinder alternative cistern fed cold supply to sanitary appliances to boiler mains supply pipe (Supply pressures up to 1,0 MPa (10 bar)) Figure — Type 2-Supply system - with a pressure range of 0,01 MPa to 1,0 MPa, (0,1 bar to 10 bar): A vented domestic hot water and cold water supply system incorporating gravity hot water, mains cold water and alternative gravity cold water supply to sanitary appliances 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 (including any amendments) applies EN 248, Sanitary tapware — General specification for electrodeposited coatings of Ni-Cr EN ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads — Part 1: Dimensions, tolerances and designation (ISO 228-1) BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) Figure — Apparatus for measuring tensile force 9.2.4 Procedure The test is carried out at ambient temperature Condition the hose to be tested by storing for h minimum at ambient temperature Connect one end of the hose by its nut to a fixed union as shown in Figure and apply gradually a force of (500 ± 10) N at the other end for (300 ± 10) s 9.2.5 Requirements There shall be no rupture and no permanent deformation that will affect the function of the hose In order to verify that the function of the hose is maintained, the hose shall then be subjected to a water tightness test using cold water at ≤ 30 °C at an appropriate pressure specified in Table (static pressure for this case because the hose is closed) for (120 ± 10) s 9.3 9.3.1 Flexing durability test Test Method This clause describes a method for testing the flexing durability of the hose 9.3.2 Principle This test is intended to verify the durability of the hose when it is subjected to flexing in the area adjacent to the connecting nut only at the connection to the outlet 9.3.3 Apparatus The apparatus is detailed in Figure 14 BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) Key horizontal shaft: — capable of rotating through an angle of 180° starting in position (a) turning anticlockwise to position (b) and returning clockwise to position (a); — having a diameter of (50 ± 5) mm ; — with nipples of G 1/2 or G 3/4 on the exterior of the shaft in order to fix the test samples means for applying and maintaining air pressure in the test samples via the shaft means of applying a force F of (5,0 ± 0,5) N to the free end of the hose e.g by means of a weight Figure — Apparatus for the flexing durability test 9.3.4 Procedure — Connect the hose as shown in Figure 8, connecting the shower side to the rotating shaft — Apply an air pressure of (0,1 ± 0,02) MPa ((1,0 ± 0,2) bar) to the test sample — Rotate the shaft at a speed of (20 ± 5) cycles per minute for 000 cycles (one cycle is the movement from (a) to (b) and back again — Carry out the test at ambient temperature 15 BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) 9.3.5 Requirement There shall be no rupture and no permanent deformation that will affect the function of the hose In order to verify that the function of the hose is maintained, the hose shall then be subjected to a water tightness test using cold water at ≤ 30 °C at an appropriate pressure specified in Table (static pressure for this case because the hose is closed) for (120 ± 10) s 9.4 Durability test 9.4.1 Test Method This clause describes a method for testing the durability of the hose 9.4.2 Principle This test is intended to verify the durability of the hose when it is pulled out of the faucet and then pushed back 9.4.3 Apparatus The apparatus is detailed in Figure 9.4.4 Procedure — Connect the hose as shown in Figure — Apply a pressure P of (0,1 ± 0,02) MPa ((1,0 ± 0,2) bar) to the test sample — Start an alternate movement with a frequency of 10 cycles per minute over a period of 10 000 cycles 9.4.5 Requirement There shall be no rupture and no permanent deformation that will affect the function of the hose In order to verify that the function of the hose is maintained, the hose shall then be subjected to a water tightness test using cold water at ≤ 30 °C at an appropriate pressure specified in Table (static pressure for this case because the hose is closed) for (120 ± 10) s 16 BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) Key actuating device bend made of polished stainless steel to create friction with a bending radius of R = (4 ± 0,1) mm and a bending angle α of (30 ± 2)° load of (5,0 ± 0,5) N means for applying and maintaining a pressure P of (0,1 ± 0,02) MPa ((1,0 ± 0,2) bar) via the actuating device pullout length (400 ± 20) mm Figure — Apparatus for the flexing durability test 9.5 9.5.1 Pressure resistance at elevated temperature Test method This clause defines a method of testing the pressure and temperature resistance of the hose at the upper limits of use indicated in Table 9.5.2 Principle The principle of this test is to subject the hose for a specified time to a pressure and temperature higher than that shown in the recommended limits of use indicated in Table 9.5.3 Apparatus The apparatus is detailed in Figure 10 17 BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) Key 11 14 supply circuit: means for supplying and maintaining the required pressures and temperatures pipe device for measuring the flow rate with an accuracy of % of the test value stop valve pressure measuring device with an accuracy of ± % of the test value temperature measuring device with an accuracy of ± °C test circuit: hose connector rigid tube for supporting the hose (12) 3-way valve with: 10 free outlet 13 restricted outlet 12 hose Figure 10 — Apparatus for testing the pressure resistance of the hose under elevated temperatures 9.5.4 Procedure Connect the hose as shown in the Figure 10 In order to heat the hose to the test temperature of (70 ± 2) °C, pass water at the test temperature through the hose at a flow rate between 0,08 l/s and 0,12 l/s for Then adjust the 3-way valve to give a flow rate which maintains the test temperature Apply the appropriate dynamic pressure to the hose specified in Table and maintain for (300 ± 10) s Table — Pressure conditions Pressure 18 Type (0,5 ± 0,02) MPa ((5,0 ± 0,2) bar) Type (0,2 ± 0,02) MPa ((2,0 ± 0,2) bar) BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) 9.5.5 Requirements — There shall be no visible leakage — There shall be no permanent deformation which affects the function of the hose 9.6 Thermal shock test 9.6.1 Test method This test simulates use under conditions of extreme temperatures and establishes the integrity of the complete product 9.6.2 Principle The principle consists of subjecting the hose for extractable outlets to cycles of hot and cold water at a temperature equal to the limits of use 9.6.3 Apparatus The apparatus is detailed in Figure 11 Key 10 supply circuit, comprising: means for supplying and maintaining the hot water temperature and pressure for the duration of the test means for supplying and maintaining the cold water temperature and pressure for the duration of the test means for alternating from hot to cold water and vice versa, within a time of maximum s test circuit, comprising: means for measuring pressure with an accuracy of ± % of the test value means for measuring temperature with an accuracy of ± °C hose connection test sample regulating valve adjusted to give the specified flow rate Figure 11 — Apparatus for thermal shock test The test circuit shall be capable of providing both hot water at (70 ± 2) °C and cold water at (20 ± 2) °C at a pressure of (0,1 ± 0,01) MPa ((1,0 ± 0,1) bar) at a flow rate between 0,08 l/s and 0,12 l/s 19 BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) 9.6.4 Procedure Connect the extractable outlet to the test circuit and subject it to cycles of (120 ± 10) s cold water and then (120 ± 10) s hot water with the flow rate between 0,08 l/s and 0,12l/s, but the pressures specified in Table shall not be exceeded: Table — Pressure conditions for thermal shock test Pressure Type (0,3 ± 0,02) MPa ((3,0 ± 0,2) bar) Type (0,1 ± 0,01) MPa ((1,0 ± 0,1) bar) Repeat this cycle continuously 300 times 9.6.5 Requirements There shall be no rupture and no permanent deformation that will affect the function of the hose In order to verify that the function of the hose is maintained, the hose shall then be subjected to a water tightness test using cold water at ≤ 30 °C at an appropriate pressure specified in Table (static pressure for this case because the hose is closed) for (120 ± 10) s 10 Rotary connection 10.1 General The test described is a type test (laboratory test) and not a quality control test carried out during manufacture If a hose has a rotary connection permitting the hose for extractable outlets to be turned freely in relation to the shower outlet, this connection shall be capable of functioning correctly and shall prevent twisting of the hose 10.2 Test Method 10.2.1 Principle This test is intended to check the function of any rotary connection 10.2.2 Apparatus The apparatus is detailed in Figure 12 20 BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) Key means of providing and maintaining the test pressure means to measure the pressure with an accuracy of ± % of the test value connection to the supply device for clamping the hose sealing plug with system for applying a torque means for measuring the torque with an accuracy of ± % Figure 12 — Rotary connection test apparatus 10.2.3 Procedure — Connect the hose to the supply circuit — Seal the rotary connection with the plug and clamp the hose — Apply cold water ≤ 30 °C at a static pressure with a value according Table — Measure the torque necessary to initiate rotation of the plug in relation to the hose 10.2.4 Requirements The initial torque shall not exceed 0,1 Nm 21 BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) Annex A (informative) Pressure take-off tee Dimensions in millimetres Key Hex or spanner flats both ends conforming to type A, EN 1254–2 [4] NOTE Unspecified tolerances are ± Figure A.1 — Pressure take-off tee (test rig Type taps) Table A.1 — Dimensions of the pressure take-off tee Dimensions of the pressure take-off tee Nominal size of tap A max 22 B C max max E F J K L M max max 1/2 15,25 15,15 26 25 13,95 13,80 40 37 0,7 0,6 19 18 5,5 3/4 22,30 22,20 36 35 20,75 20,50 50 47 0,8 0,6 26 25 9,0 Screws No Size M4 × 15 BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) Figure A.2 — Schematic Examples of pressure take-off tees (test rig Type taps) Recommendation for the design of pressure take-off tees: Figure A.2 shows three examples of pressure take-off tees giving equivalent results: — individual: types A and B; — annular slit: type C Requirements relating to the design and manufacture of pressure take-off tees are given in EN ISO 5167-1 [8] The main principles are: 23 BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) a) b) 24 Individual type: 1) The axis of the pressure orifices shall intersect the axis of the piping (or the casing) and be perpendicular to it; the opening of the orifice shall be circular and the edges flush with the wall of the piping (or the casing) with an angle as sharp as possible Slight rounding at entry is permitted (radius ≤ 1/10 diameter of the pressure orifice) 2) The diameter of the pressure orifice shall be less than 0,1 D (D; internal diameter of the tube or casing) 3) There shall be an even number (at least four) of the pressure orifices The angles formed by the arcs of the pressure orifices shall be approximately equal 4) The area of the free cross section of the annular chamber of the casing shall be greater than or equal to the half total area of the orifices connecting the chamber to the piping Annular slit: 1) The thickness f of the annular slit shall be equal to or greater than twice the width i of the slit 2) The area of the free section of the annular chamber should be equal to or greater than half the total area of the annular slit connecting the chamber to the piping 3) All surfaces coming into contact with the fluid measured shall be clean and well finished 4) The width of the annular slit shall be nominally mm BS EN 16146:2012+A1:2014 EN 16146:2012+A1:2014 (E) Bibliography [1] EN 200, Sanitary tapware — Single taps and combination taps for water supply systems of type and type — General technical specification [2] EN 817, Sanitary tapware — Mechanical mixing valves (PN 10) — General technical specifications [3] EN 1111, Sanitary tapware — Thermostatic mixing valves (PN 10) — General technical specification [4] EN 1254-2, Copper and copper alloys — Plumbing fittings — Part 2: Fittings with compression ends for use with copper tubes [5] EN 1286, Sanitary tapware — Low pressure mechanical mixing valves — General technical specification [6] EN 1287, Sanitary tapware — Low pressure thermostatic mixing valves — General technical specifications [7] EN 16145, Sanitary tapware — Extractable outlets for sink and basin mixers — General technical specification [8] EN ISO 5167-1, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 1: General principles and requirements (ISO 5167-1) 25 This page deliberately set blank This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY 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