SIST EN 15091:2007
(Main)Sanitary tapware - Electronic opening and closing sanitary tapware
Sanitary tapware - Electronic opening and closing sanitary tapware
The purpose of the document is to define requirements for marking, identification, leaktightness, electrical and operational safety and mechanical resistance for sanitary tapware with opening and closing controlled electronically.
Sanitärarmaturen - Sanitäramaturen mit elektronischer Öffnungs- und Schließfunktion
Das Dokument legt die Anforderungen an die Kennzeichnung, Identifizierung, Dichtheit, elektrische Sicherheit, Betriebssicherheit und mechanische Festigkeit von Sanitärarmaturen mit elektronisch geregelter Öffnungs- und Schließfunktion fest.
Die Einsatzbedingungen für die Wasserversorgungssysteme sind in Tabelle 2 festgelegt.
Tabelle 2 — Einsatzbedingungen
Wasser¬versorgungssystem Anwendungsgrenzen Empfohlene
Grenzwerte
für den Betrieb
Monostabile
Magnetventile Bistabile
Magnetventile
Typ 1
siehe Bild 1 Fließdruck min. 0,05 MPa
(0,5 bar) 0,05 MPa
(0,5 bar) 0,1 MPa bis 0,5 MPa
(1 bar bis 5 bar)
Ruhedruck max. 1 MPa
(10 bar) 0,8 MPa
(8 bar)
Typ 2a
siehe Bild 2 Fließdruck min. 0,01 MPa
(0,1 bar) 0,01 MPa
(0,1 bar) 0,01 MPa bis 0,2 MPa
(0,1 bar bis 2 bar)
Ruhedruck max. 0,8 MPa
(8 bar) 0,6 MPa
(6 bar)
Temperatur ? 75 °C ? 75 °C ? 65 °C
a Für Typ 2 muss der Hersteller den Mindest-Betriebsdruck angeben, bei dem die Öffnungs- und Schließfunktion und der fest¬gelegte Durchfluss erreicht werden kann.
Bei Auslaufarmaturen für Wasserversorgungssysteme vom Typ 2 gibt es üblicherweise keine Geräuschklassifizierung und keine Spezifikation, die den Geräuschpegel dieser Systeme regelt. Wenn durch Eingangsdrücke übermäßige Geräusche erzeugt werden, wird empfohlen, Strahlregler im System zu installieren. Falls möglich, werden auch Auslaufarmaturen eingesetzt, die einer Geräuschklassifizierung entsprechen.
Robinetterie sanitaire - Robinet sanitaire a ouverture et fermeture électroniques
L’objectif du présent document est de définir les exigences de marquage, d’identification, d’étanchéité, de sécurité électrique et de fonctionnement et de résistance mécanique pour la robinetterie sanitaire a ouverture et fermeture électroniques.
Les conditions d’utilisation relatives au type de systeme d’alimentation sont spécifiées dans le Tableau 2 :
Tableau 2 Conditions d’utilisation
Systeme d’alimentation en eau Limites d’utilisation Limites recommandées de fonctionnement
Robinetterie a électrovannes monostables Robinetterie a électrovannes bistables
Type 1 (voir Figure 1) Pression dynamique minimale 0,05 MPa (0,5 bar) 0,05 MPa (0,5 bar) (0,1 a 0,5) MPa [(1 a 5) bar]
Pression statique maximale 1 MPa (10 bar) 0,8 MPa (8 bar)
Type 2a (voir Figure 2) Pression dynamique minimale 0,01 MPa (0,1 bar) 0,01 MPa (0,1 bar) (0,01 a 0,2) MPa [(0,1 a 2) bar]
Pression statique maximale 0,8 MPa (8 bar) 0,6 MPa (6 bar)
Température de l’eau 75 °C 75 °C 65 °C
a Pour le type 2, il faut que le fabricant déclare la pression minimale de fonctionnement a laquelle l’ouverture, la fermeture et le débit spécifié peuvent etre obtenus.
Il n’y a généralement pas de classification acoustique relative a la robinetterie utilisée dans les systemes d’alimentation de type 2 ni de spécifications déterminant le niveau de bruit émis par ces installations d’alimentation en eau. Si les pressions d’alimentation sont telles qu’un bruit excessif est produit, il est recommandé d’équiper le systeme de régulateurs de pression ou de débit ou d’utiliser, dans la mesure du possible, une robinetterie conforme a la classification acoustique appropriée.
Tableau 3 Caractéristiques de performance a préciser en cas d’utilisation en dehors du domaine de fonctionnement recommandé
Objet Systeme d’alimentation de type 1 Systeme d’alimentation de type 2
Sanitarne armature - Elektronsko odpiranje in zapiranje sanitarnih armatur
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Sanitary tapware - Electronic opening and closing sanitary tapwareSanitarne armature - Elektronsko odpiranje in zapiranje sanitarnih armaturRobinetterie sanitaire - Robinet sanitaire a ouverture et fermeture électroniquesSanitärarmaturen - Sanitäramaturen mit elektronischer Öffnungs- und SchließfunktionTa slovenski standard je istoveten z:EN 15091:2006SIST EN 15091:2007en,fr,de91.140.70Sanitarne napraveSanitary installationsICS:SLOVENSKI
STANDARDSIST EN 15091:200701-oktober-2007
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15091December 2006ICS 91.140.70 English VersionSanitary tapware - Electronic opening and closing sanitarytapwareRobinetterie sanitaire - Robinet sanitaire à ouverture etfermeture électroniqueSanitärarmaturen - Sanitäramaturen mit elektronischerÖffnungs- und SchließfunktionThis European Standard was approved by CEN on 4 November 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15091:2006: E
EN 15091:2006 (E) 2 Contents Page Foreword.5 Introduction.6 1 Scope.7 2 Normative references.9 3 Terms and definitions.11 4 General requirements and testing.11 4.1 Marking.11 4.2 Materials.12 4.3 Functions.12 4.4 Protection against pollution.12 4.5 Electric characteristics and requirements.12 4.6 Leaktightness characteristics.14 4.7 Pressure resistance characteristics.15 5 Requirements and testing for tapware.17 5.1 Scope.17 5.2 Dimensional characteristics.17 5.3 Hydraulic characteristics.25 5.4 Water hammer.32 5.5 Endurance.33 5.6 Acoustic characteristics.34 6 Requirements and testing for flushing valves for urinals.36 6.1 Scope.36 6.2 Definitions.36 6.3 Classification of flushing urinal valves.36 6.4 Designation.36 6.5 Dimensional characteristics.37 6.6 Hydraulic characteristics.38 6.7 Measurement
of water hammer for urinal flushing valves.38 6.8 Mechanical endurance.39 7 Requirements and testing for flushing valves for WCs.40 7.1 Scope.40 7.2 Definitions.40 7.3 Classification.41 7.4 Dimensional characteristics.41 7.5 Hydraulic characteristics.43 7.6 Principle and verification of atmospheric pipe interrupters of WC flushing valves.43 7.7 Mechanical endurance.43 7.8 Acoustic characteristics.44 Annex A (normative)
Recommendation for the design of pressure take-off tees.45 Bibliography.47
EN 15091:2006 (E) 3 Figures contents Figure 1 — Type 1 - Supply system with a pressure range of (0,05 to 1,0) MPa [(0,5 to 10) bar].8 Figure 2 — Type 2 - Supply system with a pressure range of (0,01 to 1,0) MPa [(0,1 to 10) bar].9 Figure 3 — Tap with visible body for horizontal surface.18 Figure 4 — Threaded inlets of taps with visible body for mounting on vertical surfaces.19 Figure 5 — Tapware with inlets and outlets aligned.19 Figure 6 — Tapware with inlets and outlets at right angles.20 Figure 7 — Mixing valves for horizontal mounting threaded inlet.21 Figure 8 — Mixing valves for horizontal mounting, stud connection.21 Figure 9 — Mixing valves with straight fittings.22 Figure 10 — Mixing valve with excentric unions.23 Figure 11 — Mixing valve
with captive nuts.24 Figure 12 — Mixer with opposed inlets.25 Figure 13 — Supply circuits.26 Figure 14 — Test circuits for tapware intended for Type 1 water supply systems.28 Figure 15 — Mounting of mixing valves.29 Figure 16 — Flow rate test apparatus for taps intended for type 2 supply systems.30 Figure 17 — Test rig for water hammer test.32 Figure 18 — Top-entry urinal flushing valve.37 Figure 19 — Side-entry urinal flushing valve.37 Figure 20 — Side-entry WC flushing valves.43 Figure 21 — Top-entry WC flushing valves.43 Figure A.1 — Examples of pressure take-off tees.45
EN 15091:2006 (E) 4 Tables Contents Table 1 — Identification of the clauses of this standard.6 Table 2 — Conditions of use.7 Table 3 — Performance characteristics to be noted if used outside the recommended operating range.7 Table 4 — Summary of leaktightness tests.15 Table 5 — Dimensions.18 Table 6 — Dimensions of threaded inlets.19 Table 7 — Dimensions of threads.20 Table 8 — Dimensions of mixers.21 Table 9 — Dimensions.24 Table 10 — Dimensions of pipework.28 Table 11 — Flow rates and test pressures according to application.31 Table 12 — Acoustic groups.35 Table 13 — Classes of flow rate.35 Table 14 — Classification.36 Table 15 — Threads.37 Table 16 — Flow rate.38 Table 17 — Dimension of the supply pipe.39 Table 18 — Threads and outlet pipe.41 Table 19 — Permitted thread lengths.41
EN 15091:2006 (E) 5 Foreword This document (EN 15091:2006) 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 June 2007, and conflicting national standards shall be withdrawn at the latest by June 2007. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EN 15091:2006 (E) 6 Introduction This standard is relevant for electrically operated (opening and closing) sanitary tapware used with sanitary appliances. Such tapware can be operated by any electrical source e.g., mains, battery, etc. Flow and temperature regulation devices installed either upstream or downstream of the tapware are not covered by this specification. The purpose of this standard is to define requirements for the: Marking, identification, leak-tightness, electrical and operational safety, mechanical performance and limitation of water hammer for electrical opening and closing tapware. Dimensional, hydraulic, endurance, limitation of water hammer and acoustic characteristics are covered by the relevant product standards, when they exist. Procedure of tests in order to verify these characteristics. As for possible unfavourable effects of the product to which this standard applies, on the quality of water intended for human consumption: 1) no information is provided by this standard on possible use restrictions of the product in any of the member states of the EU or EFTA; 2) it should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or characteristics of this product remain in force. Requirements for different products are defined in different clauses of this standard as illustrated in Table 1. Table 1 — Identification of the clauses of this standard
MARKING-IDENTIFICATION ELECTRICAL SAFETY OPERATIONAL SAFETY LEAKTIGHTNESS MECHANICAL RESISTANCE HYDRAULIC CHARACTERISTICS WATER HAMMER WATER HAMMER FOLLOWING PRODUCT STANDARD Clause 4.General requirements and testing X x x x x
Clause 5.Requirements and testing for tapware
x x
Clause 6.Requirements and testing for flushing valves for urinals
x x
Clause 7. Requirements and testing for flushing valves for WCs
x
x
EN 15091:2006 (E) 7 1 Scope The purpose of the document is to define requirements for marking, identification, leaktightness, electrical and operational safety and mechanical resistance for sanitary tapware with opening and closing controlled electronically. The conditions of use for the supply system type are specified in Table 2: Table 2 — Conditions of use Limits of use Water supply system
Tapware with monostable solenoid valves Tapware with bistable solenoid valves Recommended limits of operation Minimum dynamic pressure 0,05 MPa (0,5 bar)0,05 MPa (0,5 bar) (0,1 to 0,5) MPa [(1 to 5) bar] Type 1 (see Figure 1) Maximum static pressure 1 MPa (10 bar) 0,8 MPa (8 bar)
Minimum dynamic pressure 0,01 MPa (0,1 bar)0,01 MPa (0,1 bar) (0,01 to 0,2) MPa [(0,1 to 2) bar] Type 2a (see Figure 2) Maximum static pressure 0,8 MPa (8 bar) 0,6 MPa (6 bar)
Temperature of the water ≤ 75 °C ≤ 75 °C ≤ 65 °C
a For Type 2, The manufacturer is to declare the minimum operating pressure at which opening, closing and the specified flow rate can be obtained. There is usually no acoustic classification for tapware used in supply systems of Type 2 and no specifications governing the level of noise emissions from these water installations. If supply pressures are such that excessive noise is generated it is recommended that pressure or flow regulators are fitted in the system. Or where practicable, tapware conforming to the appropriate acoustic classification are used. Table 3 — Performance characteristics to be noted if used outside the recommended operating range Issue Supply system type 1 Supply system type 2 Flow performance Taps for Type 2 systems may result in excessive flow velocity Taps for Type 1 system may not provide an acceptable flow rate Noise National regulations shall be observed, the criteria for classification in acoustic groups according to these national (special) regulations being different and more detailed than those given in this standard Taps for type 1 and type 2 systems may result in excessive noise when used above the recommended pressure.
EN 15091:2006 (E) 8
Key 1 Cold water 3 Mains supply pipe (Supply pressures from (0,05 to 1,0) MPa [(0,5 - 10) bar) 2 Hot water 4 Water heater Figure 1 — Type 1 - Supply system with a pressure range of (0,05 to 1,0) MPa [(0,5 to 10) bar]
EN 15091:2006 (E) 9
Key 1 Cold water storage cistern (cover omitted for clarity) 2 Warning pipe 3 Vent pipe 4 Hot water cylinder 5 Alternative cistern fed cold supply to sanitary appliances 6 To boiler 7 Mains supply pipe (Supply pressures up to 10 bar) Figure 2 — Type 2 - Supply system with a pressure range of (0,01 to 1,0) MPa [(0,1 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. 2 Normative references The following referenced 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 31, Pedestal wash basins - Connecting dimensions EN 32, Wall-hung wash basins - Connecting dimensions
EN 15091:2006 (E) 10 EN 35, Pedestal bidets with over-rim supply — Connecting dimensions EN 36, Wall-hung bidets with overrim supply — Connecting dimensions EN 111, Wall-hung hand rinse basins — Connecting dimensions EN 246, Sanitary tapware — General specifications for flow rate regulators EN 248, Sanitary tapware — General specification for electrodeposited coatings of Ni-Cr EN 695, Kitchen sinks — Connecting dimensions EN 1717, Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow EN 12541:2002, Sanitary tapware — Pressure flushing valves and automatic closing urinal valves PN 10 EN 13407:2006, Wall-hung urinals — Functional requirements and test methods prEN 13618, Hose assembly - Flexible hose assembly EN 13959, Anti-pollution check valves — DN 6 to DN 250 inclusive family E, type A, B, C and D EN 60335-1, Household and similar electrical appliances — Safety — Part 1: General requirements (IEC 60335-1:2001, modified) EN 60529, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989) EN 60730-2-8, Automatic electrical controls for household and similar use — Part 2-8: Particular requirements for electrically operated water valves, including mechanical requirements (IEC 60730-2- 8:2000, modified) EN 61000-6-1, Electromagnetic compatibility (EMC) — Part 6-1: Generic standards — Immunity for residential, commercial and light-industrial environments (IEC 61000-6-1:2005) EN 61000-6-3, Electromagnetic compatibility (EMC) — Part 6-3: Generic standards — Emission standard for residential, commercial and light-industrial environments (IEC 61000-6-3:1996, modified). EN ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation (ISO 228-1:2000) 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 5167-1:2003) EN ISO 3822-1, Acoustics - Laboratory tests on noise emission from appliances and equipment used in water supply installations - Part 1: Method of measurement (ISO 3822-1:1999) EN ISO 3822-2, Acoustics - Laboratory tests on noise emission from appliances and equipment used in water supply installations - Part 2: Mounting and operating conditions for draw-off taps and mixing valves (ISO 3822-2:1995) EN ISO 3822-3,
Acoustics - Laboratory tests on noise emission from appliances and equipment used in water supply installations - Part 3: Mounting and operating conditions for in-line valves and appliances (ISO 3822-3: 1997)
EN ISO 3822-4:1997, Acoustics - Laboratory tests on noise emission from appliances and equipment used in water supply installations - Part 4: Mounting and operating conditions for special appliances (ISO 3822-4:1985)
EN 15091:2006 (E) 11 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 cold water water with a temperature less than 25 °C 3.2 hot water water with a temperature between 52 °C and 75 °C 3.3 system of detection
device for initiating the process of opening and/or closing NOTE Such sensors can be touch or touchless (handsfree) operation. 3.4 valve electrically operated obturator for controlling the flow of water 3.5 monostable valve obturation system continuously fed electrically while operated 3.6 bistable valve obturation system electrically fed only for operating opening and closing 3.7 electronic circuitry whole of electronic components that operate both the system of detection and the valve 3.8 integrated tap tapware with all or part of the electronic components inside the body
4 General requirements and testing 4.1 Marking Tapware conforming to the requirements of this standard shall be permanently and legibly marked with: name or logo of the manufacturer; EC marking rules; acoustic and flow-rate classes (if relevant); volume class for urinals (e.g. class 6 or class 9).
EN 15091:2006 (E) 12 4.2 Materials 4.2.1 Chemical and hygienic requirements All materials coming into contact with water intended for human consumption shall present no risk of health up to a temperature of 75 °C. They shall not cause any change to the drinking water in terms of quality, appearance, smell or taste. 4.2.2 Exposed surface conditions Visible chromium plated surfaces and Ni-Cr coatings shall comply with the requirements of EN 248. 4.3 Functions Tapware shall be actuated as intended by the manufacturer i.e. as described in the manufacturer’s instructions. Tapware shall be tested so that all functions declared in the Manufacturer’s instructions are verified. The tests shall be conducted twice. The requirements of this standard are satisfied if all functions are completed satisfactorily. 4.4 Protection against pollution When taps are equipped with check-valves, these shall conform to EN 1717. 4.5 Electric characteristics and requirements 4.5.1 General The tests described are type tests (laboratory tests), not quality control tests carried out during manufacture. 4.5.2 Electrical safety Testing for electrical safety is to be conducted as described in the relevant standard(s). Low voltage specifications: EN 60335-1, Household and similar electrical appliances — Safety — Part 1: General requirements (IEC 60335-1:2001, modified). EMC compatibility: EN 61000-6-1, Electromagnetic compatibility (EMC) — Part 6-1: Generic standards — Immunity for residential, commercial and light-industrial environments (IEC 61000-6-1:1997, modified). EN 61000-6-3, Electromagnetic compatibility (EMC) — Part 6-3: Generic standards — Emission standard for residential, commercial and light-industrial environments (IEC 61000-6-3:1996, modified). Tapwares using radars shall comply with electromagnetic immunity and emission to relevant national standards waiting for European standards. NOTE Equipment designed to emit and receive signals within the frequency range covered in EN 61000 is subject to additional requirements while appropriate European Standard do not exist.
EN 15091:2006 (E) 13 Protection of the Enclosure against ingress of water and dust: The manufacturer shall declare the degree of protection of the product, in accordance with EN 60529 Degrees of protection provided by enclosures (IP code) (IEC 60529:1989). 4.5.3 Electrical operation of solenoid valves 4.5.3.1 Marking For the valves, marking shall include: AC valves Voltage Power consumption (VA/W) Frequency (Hz) DC valves Voltage Power consumption (W) Monostable or bistable 4.5.3.2 Voltage Solenoid valves shall comply with the requirements of EN 60730-2-8, i.e. safety extra voltage (SELV) of 42 V. NOTE Other types of actuators should comply with the relevant standards. 4.5.4 Electric strength and insulation resistance of the solenoïd valve Solenoid valves shall comply with EN 60730-2-8, where applicable. 4.5.5 Operational safety 4.5.5.1 Test procedure and requirements for mains operated tapware The test is conducted with cold water. Tapware intended for Type 1 water supply systems are operated at a dynamic pressure of (0,3 ± 0,02) MPa [(3 ± 0,2) bar]. Tapware intended for Type 2 water supply systems are operated at a dynamic pressure of (0,02 ± 0,005) MPa [(0,2 ± 0,05) bar]. Whilst water is flowing from the tap, the electrical supply is cut off. The tapware shall always close.
EN 15091:2006 (E) 14 4.5.5.2 Test procedure and requirements for battery operated tapware The test is conducted with cold water. The principle of the test consists of verifying that when the battery looses its charge, the tapware closes. Tapware intended for Type 1 water supply systems is operated at a dynamic pressure of (0,3 ± 0,02) MPa [(3 bar ± 0,2) bar]. Tapware intended for Type 2 water supply systems is operated at a dynamic pressure of (0,02 ± 0,005) MPa [(0,2 ± 0,05) bar]. During testing the battery is replaced by an adapted power supply with adjustable voltage. Beginning at 0,9 x Un (battery nominal voltage), actuate the valve and immediately after closing the tap, reduce the voltage in steps of 0,1 V. After 10 s, actuate again with the reduced voltage. Repeat the test until the tap does not operate. After finishing the test, the tap must not remain open. 4.6 Leaktightness characteristics 4.6.1 General The tests described are type tests (laboratory tests) and not quality control tests carried out during manufacture. This clause specifies test methods for verifying the leaktightness of electronic tapware and defines the corresponding requirements (see Table 3). Tests are carried out with cold water. 4.6.2 Leaktightness of the obturator and of the tapware upstream of the obturator 4.6.2.1 Principle The principle of the test consists of checking under cold water pressure the leaktightness of the tapware (body, head-body unit, etc.) 4.6.2.2 Apparatus A hydraulic test circuit capable of supplying the required static and dynamic pressures and of maintaining them throughout the duration of the test. 4.6.3 Leaktightness of tapware upstream of the obturator 4.6.3.1 Procedure Connect the tapware to the test circuit with the outlet orifice open, and generally turned downwards. With the obturator closed, apply a static water pressure at the inlet of the tapware of (1,6 ± 0,05) MPa [(16 ± 0,5) bar] for (60 ± 5) s.
EN 15091:2006 (E) 15 4.6.3.2 Requirements Throughout the duration of the test there shall be no leakage at the obturator and no leakage or seepage through the walls. 4.6.3.3 Leaktightness of tapware downstream of the obturator This test only applies to tapware (Clause 5) and urinal flushing valves (Clause 6). 4.6.3.4 Procedure Connect the tapware to the test circuit with the outlet orifice(s) artificially closed, and generally turned downwards; open the obturator(s); apply a static water pressure of (0,4 ± 0
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