SIST EN 817:2009
(Main)Sanitary tapware - Mechanical mixers (PN 10) - General technical specifications
Sanitary tapware - Mechanical mixers (PN 10) - General technical specifications
This European Standard specifies:
- the dimensional, leaktightness, mechanical and hydraulic performance, mechanical endurance and acoustic characteristics with which mechanical mixing valves shall comply;
- the procedures for testing these characteristics.
It is applicable:
- to mechanical mixing valves, intended for use on sanitary appliances in washrooms (toilets, bathrooms etc.) and in kitchens;
- to PN 10 mechanical mixing valves used under the following pressure and temperature conditions.
Sanitärarmaturen - Mechanisch einstellbare Mischer (PN 10) - Allgemeine technische Spezifikation
Diese Europäische Norm legt Folgendes fest:
- die Maße, die Anforderungen an die Dichtheit, das mechanische und hydraulische Verhalten, die
mechanische Festigkeit und Dauerfestigkeit sowie das Geräuschverhalten für mechanische einstellbare
Mischer;
- die Prüfverfahren, um diese Anforderungen nachzuweisen.
Die Norm gilt für:
- mechanisch einstellbare Mischer für die Ausrüstung von Sanitärausstattungsgegenständen, die in den
der Hygiene dienenden Räumen (Toiletten, Bäder) und in Küchen installiert werden;
- mechanisch einstellbare Mischer PN 10, die unter den nachstehenden Druck- und Temperaturbedin-gungen
eingesetzt werden:
Tabelle 1 - Anwendungsbedingungen für mechanisch
einstellbare Mischer
Anwendungsgrenzen
Empfohlener
Anwendungsbereich
(Fließdruck)
Fließdruck 0,05 MPa (0,5 bar)
min.
0,1 MPa - P - 0,5 MPa
(1 bar - P - 5 bar)
Ruhedruck 1 MPa (10 bar)
max.
Temperatur - 90 °C - 65 °C
ANMERKUNG Für mechanisch einstellbare Mischer, die unter Niederdruck aus Tabelle 1 eingesetzt werden, siehe
prEN 1286.
Robinetterie sanitaire - Mitigeurs mécaniques (PN 10) - Spécifications techniques générales
La présente Norme européenne prescrit :
les caractéristiques dimensionnelles, d’étanchéité, de résistance à la pression, hydrauliques, de résistance mécanique, d’endurance et acoustiques auxquelles doivent répondre les mitigeurs mécaniques ;
les méthodes d’essai visant à vérifier les caractéristiques.
Les essais décrits dans la présente Norme européenne sont des essais de type (essais en laboratoire) et non des essais de contrôle qualité réalisés en cours de fabrication.
La présente Norme européenne s’applique aux mitigeurs mécaniques PN 10 destinés à l’équipement des appareils sanitaires installés dans les locaux d’hygiène corporelle (toilettes, salles de bains, etc.) et dans les cuisines, en vue d’équiper des baignoires, lavabos, bidets, douches et éviers.
Les conditions d’utilisation et les classifications sont données dans le Tableau 1.
Sanitarne armature - Mehansko nastavljiva mešalna armatura (PN 10) - Splošne tehnične zahteve
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Sanitärarmaturen - Mechanisch einstellbare Mischer (PN 10) - Allgemeine technische SpezifikationRobinetterie sanitaire - Mitigeurs mécaniques (PN 10) - Spécifications techniques généralesSanitary tapware - Mechanical mixers (PN 10) - General technical specifications91.140.70Sanitarne napraveSanitary installationsICS:Ta slovenski standard je istoveten z:EN 817:2008SIST EN 817:2009en,fr,de01-januar-2009SIST EN 817:2009SLOVENSKI
STANDARDSIST EN 817:19971DGRPHãþD
SIST EN 817:2009
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 817June 2008ICS 91.140.70Supersedes EN 817:1997
English VersionSanitary tapware - Mechanical mixing valves (PN 10) - Generaltechnical specificationsRobinetterie sanitaire - Mitigeurs mécaniques (PN 10) -Spécifications techniques généralesSanitärarmaturen - Mechanisch einstellbare Mischer (PN10) - Allgemeine technische SpezifikationThis European Standard was approved by CEN on 29 May 2008.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 CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 817:2008: ESIST EN 817:2009
EN 817:2008 (E) 2 Contents page Foreword.6 Introduction.7 1 Scope.8 2 Normative references.10 3 Terms, definitions and designation.10 3.1 Terms and definitions.10 3.2 Designation.11 4 Marking and identification.11 4.1 Marking.11 4.2 Identification.12 5 Materials.12 5.1 Chemical and hygiene requirements.12 5.2 Exposed surface conditions.12 6 Dimensional characteristics.12 6.1 General remarks.12 6.2 Inlet dimensions.12 6.3 Outlet dimensions.17 6.4 Mounting dimensions.19 6.5 Special cases.20 6.6 Flexible hoses for shower outlets.20 6.7 Shower outlets.20 7 Sequence of testing.21 8 Leaktightness characteristics.21 8.1 General.21 8.2 Test methods.21 8.3 Leaktightness of the obturator and of the mixing valve upstream of the obturators with the obturator in the closed position.22 8.4 Leaktightness of the mixing valve downstream of the obturator with the obturator open.22 8.5 Leaktightness of manually operated diverter.22 8.6 Leaktightness and operation of diverter with automatic return.23 8.7 Leaktightness of the obturator: cross flow between hot water and cold water.24 9 Pressure resistance characteristics – mechanical performance under pressure.26 9.1 General.26 9.2 Principle.26 9.3 Apparatus.26 9.4 Mechanical behaviour upstream of the obturator – obturator in the closed position.26 9.5 Mechanical behaviour downstream of the obturator – obturator in the open position.26 10 Hydraulic characteristics.27 10.1 General.27 10.2 Initial settings.27 10.3 Principle.28 10.4 Apparatus.28 10.5 Procedure.28 10.6 Determination of flow rate.29 10.7 Determination of sensitivity.30 11 Mechanical strength characteristics - torsion test for operating mechanism.33 SIST EN 817:2009
EN 817:2008 (E) 3 11.1 General.33 11.2 Test method.33 12 Mechanical endurance characteristics.34 12.1 Mechanical endurance of the control device.34 12.2 Mechanical endurance of diverters.38 12.3 Mechanical endurance of swivel spouts.40 13 Backflow protection.41 14 Acoustic characteristics.41 14.1 General.41 14.2 Procedure.41 14.3 Requirements.41 Annex A (informative)
Apparatus.43 Annex B (informative)
Pressure take-off tee.47 Bibliography.50 SIST EN 817:2009
EN 817:2008 (E) 4 Figures Figure 1 Supply system with a pressure range of (0,05 to 1,0) MPa [(0,5 to 10) bar].9 Figure 2 Flexible hoses and plain tube.14 Figure 3 Multi-hole mechanical mixing valve.15 Figure 4 Supply connections for mechanical mixing valve and remote outlets.16 Figure 5 Remote outlet.18 Figure 6 Single hole mechanical mixing valve.18 Figure 7 Two hole mechanical mixing valve.18 Figure 8 Single hole mechanical mixing valve.19 Figure 9 Two hole mechanical mixing valve.20 Figure 10 Sensitivity curve.31 Figure 11 Radius for the determination of sensitivity.32 Figure 12 Rectangular movement.34 Figure 13 Triangular movement.35 Figure 14 Test bench adjustment torque for conventionnal mixing valve.37 Figure 15 Test bench adjustment torque for joystick mixing valve.37 Figure 16 Test bench adjustment torque for sequential mixing valve.37 Figure A 1 Supply circuits.43 Figure A 2 Test circuit.45 Figure A 3 Mounting of the mixing valve.46 Figure B 1 Pressure take-off tee.47 Figure B 2 Schematic examples of pressure take-off tees.48 SIST EN 817:2009
EN 817:2008 (E) 5 Tables Table 1 Conditions of use/Classifications.8 Table 2 Designation.11 Table 3 Inlet dimensions (mechanical mixing valve).13 Table 4 Outlet dimensions (Remote outlets, mechanical mixing valve).17 Table 5 Mounting dimensions (Outlets, single- and multi-hole mechanical mixing valve).19 Table 6 Test Sequence.21 Table 7 Summary of leaktightness tests.25 Table 8 Summary of pressure resistance characteristic tests.27 Table 9 Initial Settings.27 Table 10 Flow rates according to application.29 Table 11 Performance levels.30 Table 12 Summary of test conditions for cartridges.35 Table 13 Summary of test conditions for diverters.39 Table 14 Flow rate classes (EN ISO 3822-4 Annex A).41 Table 15 Acoustic group.42 Table A 1 Connecting dimension.45 Table B 1 Dimensions of the pressure take-off tee.47
SIST EN 817:2009
EN 817:2008 (E) 6 Foreword This document (EN 817:2008) 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 December 2008, and conflicting national standards shall be withdrawn at the latest by December 2008. 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 supersedes EN 817:1997. This European Standard acknowledges the field of application for mechanical mixing valves used in water supply systems with a pressure range of (0,05 to 1,0) MPa (0,5 bar to 10 bar). 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, 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 the United Kingdom. SIST EN 817:2009
EN 817:2008 (E) 7 Introduction In respect of potential adverse effects on the quality of water intended for human consumption, caused by the product covered by this European Standard. This European Standard provides no information as to whether the product can 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 these products remain in force. This document identifies characteristics and technical requirements for mechanical mixing valves. SIST EN 817:2009
EN 817:2008 (E) 8 1 Scope This European Standard specifies: the dimensional, leaktightness, pressure resistance, hydraulic performance, mechanical strength, endurance and acoustic characteristics with which mechanical mixing valves need to comply; test methods to verify the characteristics. The tests described in this European Standard are type tests (laboratory tests) and not quality control tests carried out during manufacture. This European Standard applies to PN 10 mechanical mixing valves for use with sanitary appliances installed in rooms used for bodily hygiene (cloakrooms, bathrooms, etc.) and in kitchens, i.e. for use with baths, wash basins, bidets, showers and sinks. The conditions of use and classifications are given in 0. Table 1 — Conditions of use/classifications Operating range of mechanical mixing valves Flow rate classes Acoustics Marking Water supply system Limits Recommended See 0 See Clause 14
See Clause 4Pressure Dynamic pressure > 0,05 MPa (0,5 bar) Static pressure ≤ 1,0 MPa (10,0 bar) Dynamic pressure (0,1 to 0,5) MPa [(1,0 to 5,0) bar] Z ≤ 0,15 l/s A ≤ 0,25 l/s S ≤ 0,33 l/s B ≤ 0,42 l/s C ≤ 0,50 l/s D ≤ 0,63 l/s
Group I -
Group II –
unclassified
for example IA IIC / B
I /- a II /- a Temperature ≤ 90 °C ≤ 65 °C
a Without flow rate class: mechanical mixing valves without interchangeable outlet accessories are tested with the original outlet accessories of the manufacturer and are not marked with a flow rate class.
NOTE Mechanical mixing valves for use at pressures lower than those in Table 1 are covered by EN 1286. SIST EN 817:2009
EN 817:2008 (E) 9
Key 1 cold water 2 hot water 3 mains supply pipe (supply pressures up to 10 bar) 4 water heater Figure 1 — Supply system with a pressure range of (0,05 to 1,0) MPa [(0,5 to 10) bar] SIST EN 817:2009
EN 817:2008 (E) 10 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 246, Sanitary tapware — General specifications for flow rate regulators EN 248, Sanitary tapware — General specification for electrodeposited coatings of Ni-Cr EN 1112, Sanitary tapware – Shower outlets for sanitary tapware for water supply systems of type 1 and type 2 – General technical specification EN 1113, Sanitary tapware – Shower hoses for sanitary tapware for water supply systems of type 1 and type 2 – General technical specification EN 1717, Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow prEN 13618-1, Hose assembly — Flexible hose assembly — Part 1: Product standard for flexible hose assembly (with or without braiding) prEN 13618-2, Water supply — Hose assembly — Part 2: Semi-rigid hose assembly EN 14506, Devices to prevent pollution by backflow of potable water — Automatic diverter — Family H, type C 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 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 3822-4:1997, 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 3822-4:1997) 3 Terms, definitions and designation 3.1 Terms and definitions For the purpose of this document, the following term and definition applies. mechanical mixing valve valve which mixes hot and cold water and which, by means of a control device, allows the user to adjust between ‘all cold water’ and ’all hot water’, which implies the flow rate of the mixture obtained may be adjusted between ‘no flow’ and ‘maximum flow’ using either the same control device or another separate control device SIST EN 817:2009
EN 817:2008 (E) 11 3.2 Designation Mechanical mixing valves covered by this European Standard are designated by the characteristics identified in 0. Table 2 — Designation Tapware according to application (see 0) Type of valve Mechanical mixing valve Intended use Basin, bidet, sink, bath or shower Mounting method Horizontal or vertical surfaces Body Single or multi-hole, visible, or concealed Diverter With or without diverter Type of outlet Fixed, moveable, divided outlet spout, with or without flow rate regulator Acoustic group and classification Group I, or group II, or unclassified Water saving properties Yes / no Flow rate class Z, A, S, B, C, D Reference to this European Standard EN 817 Example of designation: Mechanical mixing valve for bath/shower, 2-hole with combined visible body, mounting on horizontal surface, diverter, fixed outlet, flow rate classes C/B, with acoustic group I, EN 817. 4 Marking and identification 4.1 Marking Mechanical mixing valves shall be marked permanently and legibly with: the manufacturer's or agent’s name or identification - on the body or handle; the manufacturer's name or identification - on the cartridge (not applicable when the cartridge is of special design to suit the body); the acoustic group (see 0) and the flow rate class(es) (see 0), if applicable - on the body. For water saving mixing valves, appropriate information to installers and users shall be provided. NOTE In the case of bath/shower mixing valves, the flow rate is indicated by the first letter for the bath outlet and by the second letter for the shower outlet. Examples of marking: Name or identification and IA, or IIA (acoustic group and flow rate class(es)) Name or identification and I/-, or II/- (acoustic group, without flow rate class(es)) SIST EN 817:2009
EN 817:2008 (E) 12 Name or identification and IC/A, or IIC/A (bath/shower tap; the first letter for the bath outlet, the second letter for the shower outlet). 4.2 Identification The control devices for mechanical mixing valves shall be identified: for cold water by the colour blue or word/letters for cold; for hot water by the colour red or word/letters for hot; any other suitable means. 5 Materials 5.1 Chemical and hygiene requirements All materials coming into contact with water intended for human consumption shall present no risk to health. They shall not cause any change of the drinking water in terms of quality, appearance, smell or taste. 5.2 Exposed surface conditions Visible chromium plated surfaces and Ni-Cr coatings shall comply with the requirements of EN 248. 6 Dimensional characteristics 6.1 General remarks The design and construction of components without defined dimensions permit various design solutions to be adopted by the manufacturer. Special cases are covered in 6.5. 6.2 Inlet dimensions Inlet dimensions shall be as specified in Table 3, 0, 0 and 0. SIST EN 817:2009
EN 817:2008 (E) 13 Table 3 — Inlet dimensions (mechanical mixing valve) Dimensions (mm) Comments Shank, union, captive nut A G ½ B Shank, union In accordance with EN ISO 228-1 A 2 9 min Captive nut A 3 15 min Shank, Union (straight or eccentric) Useful thread length
Connecting centres
G a 150 + 1 Supply connection, Straight unions G 1 140 to 160 2 – hole wall mounted - with eccentric unions (extension of this range is permitted) Inlet connections N 1 12,3 + 0,2 N 2 5 min Type A
N 1 15,2 + 0,05 N 2 13 min Type B
30° chamfer/flat 0,3 N 1 14,7 + 0,3 N 2 6,4 min Type C N 1 19,9 + 0,3 N 2 6,4 min Type C
T
Plain end ∅ 10 or 12 or 15 or G ½ or G 3/8 male or female
Copper tube(s) or flexible hose(s) U 350 min
Tube(s) or flexible hose(s)
Flexible hoses in accordance with prEN 13618-1 and/or prEN 13618-2 a
Other dimensions are permissible (for replacement) when market tradition requires it, provided the manufacturer specifies the actual dimension in literature to avoid confusion with the standard dimension – which can be achieved using an excentric connection.
SIST EN 817:2009
EN 817:2008 (E) 14
1 2 Key 1 flexible hose 2 plain tube Figure 2 — Flexible hoses and plain tube SIST EN 817:2009
EN 817:2008 (E) 15
Figure 3 — Multi-hole mechanical mixing valve
SIST EN 817:2009
EN 817:2008 (E) 16
Figure 4 — Supply connections for mechanical mixing valve and remote outlets SIST EN 817:2009
EN 817:2008 (E) 17 6.3 Outlet dimensions Outlet dimensions shall be as specified in Table 4, 0, 0 and 0. When nozzle outlets are used with flow rate regulators conforming to EN 246, the manufacturing tolerances chosen for the connecting threads of the outlets shall be compatible with those of the connecting threads of the flow rate regulators in order to ensure interchangeability. Table 4 — Outlet dimensions (remote outlets, mechanical mixing valve) Dimensions (mm) Comments E 25 min Outlet orifice - Lowest point - All mixing valves and outlets Dimension from lowest point of the outlet orifice including any flow rate regulator or flow straightener to the mounting surface. Regulations exist in some EU Member States that set dimensions greater than those indicated in this European Standard. D 1 90 min Horizontal mounted mechanical mixing valve D 3 115 min Wall mounted mechanical mixing valve Separate spout Dimension from the centre of outlet orifice including any flow rate regulator or flow straightener. A G ½ B Remote outlet In accordance with EN ISO 228-1 A 4 7,5 min Useful thread length A 5 9,5 min Shower outlet Free length of connection Nozzle outlets to accept flow rate regulators shall be in accordance with EN 246. NOTE
Nozzle outlets not in accordance with EN 246 are covered by 6.5
SIST EN 817:2009
EN 817:2008 (E) 18
Figure 5 — Remote outlet Figure 6 — Single hole mechanical mixing valve
Figure 7 — Two hole mechanical mixing valve
SIST EN 817:2009
EN 817:2008 (E) 19
6.4 Mounting dimensions Mounting dimensions shall be as specified in Table 5, 0 and 0. Table 5 — Mounting dimensions (outlets, single- and multi-hole mechanical mixing valve) Dimensions (mm) Comments Shank diameter
H 1 24 max Two hole mechanical mixing valve size ½ Adjustable centres H 2 29 max Side spray Adjustable centres H 3 33,5 max Single hole
Base or flange
J 1 42 min Side spray J 2 45 min Bath, bath/shower, basin, bidet, sink Dimension of base or flange J 3 50 max Single and multi hole mechanical mixing valve Diameter of clamping washer V 32 max Basin, bidet, sink Flange projection to rear
V 1 35 max Bath – two hole mechanical mixing valve
L Dimension which allows taps and outlets to be fitted on to supports of thickness between 1 mm and 18 mm. Minimum range (mm) of supports, which allows the installation of the mixing valves.
1 2 Key 1 basin – bidet – sink 2 remote spray attachment Figure 8 — Single hole mechanical mixing valve SIST EN 817:2009
EN 817:2008 (E) 20
Figure 9 — Two hole mechanical mixing valve 6.5 Special cases Mechanical mixing valves intended for special applications, e.g. for installation on sanitary appliances not conforming with European Standards, or where dimensional interchangeability is not a requirement can incorporate dimensional deviations provided that: all other requirements of this standard are satisfied; secure fixing to the mounting surface is provided with all fixing
...
SLOVENSKI oSIST prEN 817:2005
PREDSTANDARD
marec 2005
Sanitarne armature - Mehansko nastavljiva mešalna armatura (PN 10) -
Splošne tehnične zahteve
Sanitary tapware - Mechanical mixers (PN 10) - General technical specifications
ICS 91.140.70 Referenčna številka
oSIST prEN 817:2005(en)
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
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EUROPEAN STANDARD
DRAFT
prEN 817
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2004
ICS Will supersede EN 817:1997
English version
Sanitary tapware - Mechanical mixers (PN 10) - General
technical specifications
Robinetterie sanitaire - Mitigeurs mécaniques (PN 10) - Sanitärarmaturen - Mechanisch einstellbare Mischer (PN
Spécifications techniques générales 10) - Allgemeine technische Spezifikation
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 164.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 817:2004: E
worldwide for CEN national Members.
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prEN 817:2004 (E)
Contents
Foreword.3
Introduction .4
1 Scope .4
2 Normative references .4
3 Designation .5
4 Marking - Identification .6
5 Materials .6
6 Dimensional characteristics .6
7 Tightness characteristics .12
8 Pressure resistance characteristics - mechanical performance under pressure.14
9 Hydraulic characteristics .16
10 Mechanical strength characteristics - torsion test for operating mechanism .21
11 Mechanical endurance characteristics.22
12 Backflow protection.29
13 Acoustic characteristics .29
Annex A (normative).31
Annex B (informative).33
2
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prEN 817:2004 (E)
Foreword
This document (prEN 817 :2004) has been prepared by Technical Committee CEN/TC 164, "Water supply", the
secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 817:1997.
This standard now acknowledges the field of application for mechanical mixing valves used in:
Water supply systems with a pressure range of 0.05 MPa (0.5 bar) to 1.0 MPa (10 bar)
3
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prEN 817:2004 (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 these products remain in force.
The tests described are type tests (laboratory tests) and not quality control tests carried out during manufacture.
1 Scope
This European Standard specifies:
the dimensional, leaktightness, mechanical and hydraulic performance, mechanical endurance and acoustic
characteristics with which mechanical mixing valves shall comply;
the procedures for testing these characteristics.
It is applicable:
to mechanical mixing valves, intended for use on sanitary appliances in washrooms (toilets, bathrooms etc.)
and in kitchens;
to PN 10 mechanical mixing valves used under the following pressure and temperature conditions.
Table 1 Conditions for the use of mechanical mixing valves
Limits of use Recommended limits for correct
operation
Dynamic pressure 0,05 MPa (0,5 bar) min.
0,1 MPa ≤ P ≤ 0,5 MPa
(1 bar ≤ P ≤ 5 bar)
Static pressure 1 MPa (10 bar) max.
Temperature
≤ 90 °C ≤ 65 °C
NOTE: Mechanical mixing valves for use at pressures lower than those in table 1 are covered by EN 1286.
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
4
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prEN 817:2004 (E)
EN 35 Pedestal bidet over rim supply only - Connecting dimensions
EN 36 Wall hung bidets over rim supply only - Connecting dimensions
EN 111 Wall hung rinse basins - Connecting dimensions
EN 232 Baths - Connecting dimensions
EN 246 Sanitary tapware - General specifications for flow rate regulators
EN 248 Sanitary tapware - General technical specifications for electrodeposited nickel chrome
coatings
EN 695 Kitchen sinks - Connecting dimensions
EN 1717 Protection against pollution of potable water in drinking water installations and general
requirements of devices to prevent pollution by backflow
EN ISO 3822-1:1995 Acoustics - Laboratory tests on noise emission from appliances and equipment used in
water supply installations - Part 1: Method of measurement
EN ISO 3822-2:1995 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
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 228-1:1994 Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions
tolerances and designation
ISO 5167-1:1991 Measurement of fluid flow by means of pressure differential devices - Part 1: Orifice
plates, nozzles and Venturi tubes inserted in circular cross-section conduits running full
3 Designation
Mechanical mixing valves with a control device mixes hot and cold water between the "all cold water" position and
the "all hot water" position and adjusts the flow rate of the mixture obtained between the "no flow" and "maximum
flow" positions, either using the same control device or another separate control device.
The valves covered by this standard are designated (see Table 2) by reference to:
nominal size (½ or ¾);
this standard.
For example: Mechanical mixing valve, nominal size ½, 1-hole, visible body, mounting on horizontal surface,
diverter, fixed outlet, flow rate class(es), with acoustic group, EN.
Table 2 Designation
Mechanical mixer according to application
Intended use Basin, bidet, sink, shower, bath/shower
Mounting method Horizontal or vertical surfaces
Type of body Single or multi-hole, visible, or concealed
Type of outlet Fixed- , moveable-, with or without flow rate regulator
5
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prEN 817:2004 (E)
Mechanical mixer according to application
Diverter with or without diverter
Acoustic group, classification Group I, or group II, unclassified
Flow rate class of mixers Z, A, S, B, C, D
Ref. to the Standard EN 817
4 Marking - Identification
4.1 Mechanical mixing valves shall be marked permanently and legibly with:
the manufacturer's or agent’s name or identification - on the body or handle;
the manufacturer's name or identification - on the headwork;
the acoustic group (see Table 13)and the flow rate class(es), (see Table 12), - on the body.
Examples of marking:
Name or identification and I-A-A, or II-B-B (acoustic group and flow rate class(es))
Bath/Shower mixer: the first letter for the bath outlet, the second letter for the shower outlet
4.2 Identification
The direction of movement of the control device for water temperature adjustment of mechanical mixing valves
shall be identified:
for cold water by the colour blue;
for hot water by the colour red.
The identification of cold water shall be on the right and the hot water on the left.
5 Materials
5.1 Chemical and hygiene requirements
All materials coming into contact with water intended for human consumption shall present no health risk up to a
temperature of 90°C.
They shall not cause any change of the drinking water in terms of quality, appearance, smell or taste.
5.2 Exposed surface conditions
Visible chromium plated surfaces and Ni-Cr coatings shall comply with the requirements of EN 248.
6 Dimensional characteristics
6.1 General remarks
The design and construction of components without defined dimensions permits various design solutions to be
adopted by the manufacturer.
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Special cases are covered in clause 6.2
Inlet dimensions (shanks, connections, tubes, attachments) are shown in Table 3, Figure 1, Figure 2, Figure 3,
Figure 4 and Figure 5
Outlet dimensions (length, flow rate regulators, attachments) are shown in Table 4, Figure 6, Figure 7 and
Figure 8.
Mounting dimensions of mixers described in this standard are shown in Table 5, Figure 9.
6.1.1 Inlet Dimensions - Single-hole mixer - visible body - Supply Connections
Table 3 Inlet Dimensions
INLET – DIMENSIONS (all dimensions are in mm) COMMENTS
Shank, Union, Captive nut, (useful thread length)
A G ½ B
Shank, union ISO 228 /1
A 1 G ¾ B
A 2 9 min Captive nut
Useful thread length
A 3 15 min Shank, Union
Connecting centres
Supply connection,
G 150 + 1
2 - hole wall -mounted size ½
with captive nut or straight unions
(Bath, Shower)
- with eccentric unions (extension of this range
G 1 140 – 160
is permitted)
G 2 200 + 3,5 Multi-hole tap size ½ (Kitchen, Basin)
Inlet connections (Connecting ends)
N 1 12,3 +0.2
Type 1 size ½
N 2 5 min
N 1 15,2 + 0.05
Type 2 size ½
30°chamfer / flat 0,3
N 2 13 min
Plain end ∅ 10 or 12 or 15 or G ½ or
T Copper tube(s) or flexible hose(s)
G 3/8 male or female
Tube(s) or flexible hose(s)
U 350 min
Flex. Hoses in acc. with EN 13618
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Figure 1 Pipe connection Figure 2 Flexible hoses
6.1.2 Connecting ends
Figure 3 Dimensions of connecting ends
6.1.3 Inlet Dimensions - Two hole mixer
Figure 4 Eccentric unions
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Figure 5 Mechanical mixing valve with captive nuts
Table 4 Outlet dimensions (Outlets, single & multi -hole mechanical mixer)
OUTLET – DIMENSIONS (all dimensions are in mm) COMMENTS
Outlet Orifice Dimension from lowest point of the outlet
E 25 min - Lowest point orifice including any flow rate regulator or flow
- All taps and outlets straightener to the mounting surface.
D1, 90 min Basin, Bidet, Kitchen mixer
Dimension from the centre of outlet orifice
including any flow rate regulator or flow
Wall mounted mechanical mixer or
straightener
D 3 115 min
separate spout,
G ½ B or
A Shower outlet (preferred G ½ B) ISO 228-1
G ¾ B
A 4 7,5 min Useful thread length
Shower outlet
A 5 9,5 min Free length of connection
Nozzle outlets
to accept flow rate regulators according with EN 246
not in accordance with EN 246, those are covered by 6.2
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6.1.4 Two hole mechanical mixer
Figure 6 Outlet dimensions – Bath/Shower mixer
6.1.4.1 Separate outlets
Figure 7 Outlet – wall mounted Figure 8 Outlet – Basin, Bidet, Kitchen
Table 5 Mounting dimensions
MOUNTING – DIMENSIONS COMMENTS
Shank diameter
H 2 29 max side spray Shank diameter
The two inlet pipes and re-tension
H 3 33,5 max Single hole mixer stud shall be contained in a cercle
of diameter H 3
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MOUNTING – DIMENSIONS COMMENTS
Base or flange
Diameter of remote spray
J 1 42 min Basin, Bidet, Sink
attachment base
J 2 45 min Bath, Bath / Shower, Basin, Bidet, Sink Diameter of mixing valve base
J 3 50 max Single hole mixer, Multi hole Mixer Diameter of clamping washer
V 32 max Basin, Bidet, Sink
Flange projection to rear
V 1 35 max Bath
V 3 47 max 3 hole mechanical mixer
Minimum range (mm) of supports,
Dimensions which allow taps and outlets to be fitted
L 1 – 18 which allows the installation of the
on to supports of thickness between 1mm and 18 m.
tap.
6.1.4.2 Single hole mixer with spray attachment
Figure 9 Single hole mixer - side spray
6.1.4.3 Mechanical mixing valve remotely mounted from sanitary appliance
The design, execution and dimensions are left to the discretion of the manufacturer. The connecting threads shall
comply with ISO standards.
If the air gap does not comply with E * 25 mm, a suitable backflow protection device in accordance with EN 1717 is
required.
6.1.5 Mechanical mixing valves with concealed or single hole body
The design, execution and dimensions are left to the discretion of the manufacturer. The connecting threads shall
comply with ISO 228-1.
6.1.6 Dimensions of water outlets
6.1.6.1 Nozzle outlets for use with flow rate regulators
When nozzle outlets are used with flow rate regulators:
a) conforming with EN 246
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b) not conforming with EN 246, those mechanical mixing valves are covered by 6.2.
In order to ensure interchangeability of flow rate regulators, the manufacturing tolerances chosen for the connecting
threads of the outlets shall be compatible with those of the standard connecting threads of the flow rate regulators.
6.2 Special cases
Mechanical mixing valves intended for special applications e.g. for installation on sanitary appliances not
conforming with European Standards, or where dimensional interchangeability is not a requirement etc may
incorporate dimensional deviations provided that:
all other requirements of this standard are satisfied;
secure fixing to the mounting surface is provided with all fixing holes covered;
thread connections to the supply pipes comply with ISO 228/1;
the air gap dimension E > 25 mm or a backflow prevention device is provided in accordance with EN 1717.
The manufacturer's literature including the installation instructions supplied with the tap ware shall indicate clearly
that the tap ware is a special case.
6.3 Flexible hoses for shower outlets
Requirements of flexible hoses for shower outlets are specified in EN 1113 and EN 13509
6.4 Shower outlets
Requirements of Shower outlets are specified in EN 1112 and Pr EN 13508
7 Tightness characteristics
7.1 General
This clause specifies test methods for verifying the leaktightness of the mixer and gives the corresponding
specifications.
7.2 Test methods
7.2.1 Principle
This consists of checking, under cold water pressure, the leaktightness of:
a) the obturator (see 7.3 and 7.5);
b) the complete mixing valve (see 7.3 and 7.6);
c) diverters with manual control (see 7.6) or automatic return (see 7.7) if provided.
In the case where the diverter with automatic return is considered to insure an anti-polluting function, it was to
comply with specific requirements (see clause 12).
7.2.2 Apparatus
A hydraulic test circuit capable of supplying the static and dynamic pressures required and of maintaining them
throughout the duration of the test.
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7.3 Leaktightness of the mixing valve upstream of the obturator and of the obturator
7.3.1 Procedure
Connect the two test circuit water supplies to the mixing valve.
With the outlet orifice open and the obturator closed, apply a water pressure of (1,6 ± 0,05) MPa ((16 ± 0,5) bar) to
the mixer for (60 ± 5) s, for the full operating range of the temperature control device.
7.3.2 Requirements
a) Verification of leaktightness upstream of the obturator;
For the duration of the test there shall be no leakage or seepage through the walls.
b) Verification of leaktightness of the obturator.
For the duration of the test there shall be no leakage at the obturator.
7.4 Leaktightness of the obturator: cross flow between hot water and cold water
7.4.1 Procedure
connect one inlet of the mixing valve to the test circuit;
with the outlet orifice open and the obturator closed, apply a water pressure of (0,4 ± 0,02) MPa ((4 ± 0,2) bar)
to the mixing valve for (60 ± 5) s for the full operating range of the temperature control device;
repeat the test, reversing the water supply connection to the other inlet.
7.4.2 Requirements
For the duration of the test, there shall be no leakage or seepage at the outlet or at the end of the unconnected
inlet.
7.5 Leaktightness of the mixing valve downstream of the obturator
7.5.1 Procedure
connect the two test circuit water supplies to the mixing valve;
with the outlet orifice closed and the obturator open apply a water pressure of (0,4 ± 0,02) MPa ((4 ± 0,2) bar)
to the mixer for (60 ± 5) s, for the full operating range of the temperature control device;
repeat the test with a water pressure of (0,02 ± 0,005) MPa (0,2 ± 0,05 bar) for (60 ± 5) s.
7.5.2 Requirements
For the duration of the test, there shall be no leakage or seepage.
7.6 Leaktightness of manual diverters
7.6.1 Procedure
Connect the mixing valve, in its position of use, to the test circuit;
put the diverter in the bath position, with the bath outlet artificially closed and the shower outlet open;
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apply a static water pressure of (0,4 ± 0,02) MPa ((4 ± 0,2) bar) for (60 ± 5) s. Check that leaktightness is
obtained on the shower outlet;
in addition, where leaktightness of the diverter is provided by one or more toroidal seals, apply a static water
pressure of (0,02 ± 0,005) MPa ((0,2 ± 0,05) bar) for (60 ± 5) s. In this case, apply the highest pressure first
and then gradually reduce to the lower pressure. Check that leaktightness is obtained on the shower outlet;
put the diverter in the shower position with the shower outlet artificially closed and the bath outlet open;
apply a static water pressure of (0,4 ± 0,02) MPa (4 ± 0,2) bar for (60 ± 5) s. Check that leaktightness is
obtained on the bath outlet;
in addition, where leaktightness of the diverter is provided by one or more toroidal seals, apply a static water
pressure of (0,02 ± 0,005) MPa ((0,2 ± 0,05) bar) for (60 ± 5) s. In this case apply the highest pressure first and
then gradually reduce to the lower pressure. Check that leaktightness is obtained on the bath outlet.
7.6.2 Requirements
For the duration of the test there shall be no leakage at the outlet points indicated.
7.7 Leaktightness of diverters with automatic return
7.7.1 Procedure
Connect the mixing valve, in its position of use, to the test circuit with the outlets fully open;
connect the hydraulic resistance Class A to the shower outlet (see 13.3.1);
put the diverter in the bath position and apply a dynamic water pressure of (0,4 ± 0,02) MPa (4 ± 0,2) bar) for
(60 ± 5) s. Check that leaktightness is obtained on the shower outlet;
put the diverter in the shower position. Check that leaktightness is obtained on the bath outlet;
with the diverter still in the shower position, reduce the dynamic pressure to a value of (0,05 ± 0,005) MPa
((0,5 ± 0,05) bar). Check that the diverter is not dislodged. Maintain this pressure for a (60 ± 5) s and checks
that leaktightness is obtained on the bath outlet;
turn the water off. Check that the diverter returns to the bath position;
reapply the dynamic pressure of (0,05 ± 0,005) MPa ((0,5 ± 0,05) bar) for (60 ± 5) s.
Check that leaktightness is obtained on the shower outlet.
7.7.2 Requirements
For the duration of the test there shall be no leakage.
7.8 Summary of requirements
NOTE: A summary of requirements is shown in the Table B.1.
8 Pressure resistance characteristics - mechanical performance under pressure
8.1 General
This clause describes the test method to verify the mechanical performance under high pressure and specifies the
test criteria.
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8.2 Principle
The principle is to detect any deformation of the mixer which might occur under cold water pressure. The test is
carried out both upstream and downstream of the obturator
8.3 Apparatus
A hydraulic test circuit, capable of supplying and of maintaining the required pressures and of maintaining them for
the test duration.
8.4 Mechanical behaviour upstream - Obturator in the closed position
8.4.1 Procedure
a) Connect the mixer to the test circuit
b) With the obturator(s) closed apply at the mixer inlet a static water pressure of (2.5+0.05) MPa (25.0+0.5) bar
for (60+5)s.
c) Check whether there is permanent deformation in any part of the tapware upstream of the obturator
8.4.2 Requirement
For the duration of the test, there shall be no permanent deformation of any part of the mixer.
8.5 Mechanical behaviour downstream - Obturator in the open position
8.5.1 Procedure
a) Connect the mixer as supplied to the test circuit
b) Open the mixer obturator(s) fully
c) For mixers with a flow rate regulator fitted apply at the mixer inlet a dynamic water pressure of (0.4+0.02) MPa
(4.0+0.2) bar for (60+5) s. Check whether there is permanent deformation in any part of the tap ware
downstream of the obturator
8.5.2 Requirement
No permanent deformation shall be produced in any part of the mixer.
Table 6 Summary of mechanical performance under pressure tests
Pressure Obturator Outlet Cold water test Requirements
applied orifice Test conditions
Pressure Duration
Upstream of closed open static No permanent
obturator (2,5 ± 0,05) MPa (60 ± 5) s deformation
((25 ± 0,5) bar)
Downstream of open open dynamic No permanent
obturator (0,4 ± 0,02) MPa (60 ± 5) s deformation
((4 ± 0,2) bar)
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9 Hydraulic characteristics
9.1 General
This clause specifies test methods to determine the following characteristics of mechanical mixers:
flow rate (see 9.5);
sensitivity (see 9.5.2).
9.2 Apparatus
This comprises:
two supply circuits (hot water and cold water) (Figure 10);
one test circuit (Figure 11).
9.2.1 Supply circuits
Figure 10 Supply circuits
Legend:
1 pressure regulator
2 piping
3 flow rate measurement
4 cold water
5 hot water
6 Supply circuits
7 Sample
Each circuit comprises:
a temperature regulating device (not shown) for adjusting:
the temperature of the cold water to a value between 10°C and 15°C;
the temperature of the hot water to a value between 60°C and 65°C.
a device (1) for obtaining the required pressures;
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piping (2) of appropriate cross-section for the flow to be obtained;
a device (3) for measuring the flow rate.
9.2.2 Test circuit (see figure 16)
Each hot water or cold water supply to the mixer comprises:
a) piping made from a rigid metal tube of diameter and length in accordance with the dimensions in table 11 and
figure 16 comprising:
a device for connecting this piping to the supply circuit;
a pressure take off tee;
a temperature probe;
a connection to the reinforced flexible pipe.
b) a reinforced flexible pipe, 500 mm long, of minimum internal diameter equal to that of the metal tube, with a
device at the end for connection to the mixing valve;
c) a temperature probe for the water at the mixing valve outlet;
d) a device without backlash for automatic or non-automatic operation at a rate of approximately 0,5°/s or
0,8 mm/s of the temperature and flow rate adjustment devices of the mixer;
e) equipment for measuring:
pressures (measurement accuracy ± 1 % of the measured values);
flow rates (measurement accuracy ± 2 % of the measured values);
temperatures (measurement accuracy ± 1 % of the measured values);
movement (of the temperature control device.
NOTE: The various parameters QC, QH, QM and G may be recorded continuously.
Where:
QC is the quantity of cold water;
QH is the quantity of hot water;
QM is the quantity of mixed water.
Table 7 Connecting dimension
Internal diameter
Connecting dimension of mixer Union nut
mm
½ 13 mini G ½
¾ 20 mini G ¾
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Figure 11 Test circuit
Legend:
1 Connection to supply circuit
2 Metal tube
3 Pressure taping
4 Temperature probe
5 Connection
6 Hot water
7 Mixed water temperature probe
8 Cold water
9.2.3 Pressure take off tees
Pressure take off tees shall be of the individual pressure tapping type or the annular slit type (see Annex A).
9.3 Mounting of the mixing valve
Depending on the type of mixing valve, one of the following mounting arrangements shall be used:
Figure 12 Mounting of the mixing valve
Legend:
1 Flexible tube
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9.4 Procedure
connect both supplies of the mixing valve to the test circuit;
fit the automatic operating device to the temperature regulator;
for mixing vales with a flow rate control device which is separate from the temperature control device, set it at
maximum flow position. For single control mixing valve, set the flow rate control device to the position providing
maximum flow;
on the cold water side, supply the mixer with water at a temperature T of between 10°C and 15°C ± 1°C, with
the hot water supply isolated;
Adjust the pressure P to (0,3 ± 0,02) MPa ((3 ± 0,2) bar), with the mixer open.
Repeat the operations for the hot water supply, with the water at a temperature T of between 60°C and 65°C,
to ± 1°C, so that *T = 50 K;
Adjust the pressure P to (0,3 ± 0,02) MPa ((3 ± 0,2) bar), with the mixer open.
When these adjustments have been made, return the control device to the off position with the mixer under
pressure.
9.5 Verification of hydraulic characteristics
9.5.1 Principle
To determine the flow rate of the mixing valve under test at a dynamic reference pressure of (0,3 + (0/+0,02)) MPa
(3 (0/+ 0,2)) bar, applied to the hot and cold water supplies, for the full extent of the temperature control range.
The measurement is made on a fully open mixing valve, going from cold to hot, then from hot to cold. If the mixing
valve has standard accessories (aerators, showers, etc.) the measurement is carried out replacing these by a
hydraulic resistan
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