SIST EN 1111:2017

Sanitary tapware - Thermostatic mixing valves (PN 10) - General technical specification

This European Standard specifies general construction, performance and material requirements for PN 10 thermostatic mixing valves (TMV) and includes test methods for the verification of mixed water temperature performance at the point of use below 45 °C. This does not exclude the selection of higher temperatures where available. When these devices are used to provide anti-scald protection for children, elderly and disabled persons the mixed water temperature needs to be set at a suitable bathing temperature (body temperature – 38 °C) as children are at risk to scalding at lower temperatures than adults. This does not obviate the need for supervision of young children during bathing.
It applies to valves intended for use on sanitary appliances in kitchens, washrooms (incl. all rooms with sanitary tapware, e.g. toilets and cloakrooms) and bath rooms operating under the conditions specified in Table 1.
This standard allows TMVs to supply a single outlet or a small number of outlets in a “domestic” application (e.g. one valve, controlling a shower, bath, basin, bidet), excluding valves specifically designed for supplying a large number of outlets (i.e. for institutional use).
The tests described are type tests (laboratory tests) and not quality control tests carried out during manufacture.
(...)

Sanitärarmaturen - Thermostatische Mischer (PN 10) - Allgemeine technische Spezifikation

Diese Europäische Norm legt allgemeine Anforderungen an Konstruktion (Ausführung), Verhalten (Funktion) und an Werkstoffe für thermostatische Mischer, PN 10, (Mischer) für den Hochdruckbereich fest und sie enthält Prüfverfahren für die Verifizierung des Verhaltens der Mischwassertemperatur an der Entnahmestelle unter 45 °C. Das schließt die Auswahl höherer Temperaturen nicht aus, sofern sie verfügbar sind. Werden diese Vorrichtungen für die Bereitstellung des Verbrühungsschutzes für Kinder, ältere und behinderte Personen  eingesetzt, muss die Mischwassertemperatur auf eine geeignete Badetemperatur (Körpertemperatur bis 38 °C) eingestellt werden, da bei Kindern die Gefahr besteht, sich bereits bei niedrigeren Temperaturen als Erwachsene zu verbrühen. Das macht jedoch nicht die Beaufsichtigung von Kleinkindern während des Badens überflüssig.
Diese Norm gilt für Mischer für die Ausrüstung von Sanitärausstattungsgegenständen, die in Küchen, Waschräumen (einschließlich aller Räume mit Sanitärarmaturen, z. B. Toiletten und Umkleiden) und Bädern installiert werden, die unter den in Tabelle 1 festgelegten Bedingungen eingesetzt werden.
Die vorliegende Norm behandelt die Verwendung von Mischern, die in Anlagen mit nur einer oder wenigen Entnahmestellen im häuslichen Bereich verwendet werden (z. B. ein Mischer für Brause, Badewanne, Waschbecken, Sitzwaschbecken). Ausgeschlossen sind jedoch Mischer, die speziell für die Versorgung einer großen Anzahl von Entnahmestellen ausgelegt sind (d. h. für die Verwendung in Reihenwaschanlagen).
Die beschriebenen Prüfungen sind als Typprüfungen (Laborprüfungen) zu verstehen und nicht als Prüfungen zur Qualitätskontrolle während der Herstellung.
(...)

Robinetterie sanitaire - Mitigeurs thermostatiques (PN 10) - Spécifications techniques générales

La présente Norme européenne spécifie des exigences générales relatives à la construction, aux performances et aux matériaux applicables aux mitigeurs thermostatiques PN 10 et comprend des méthodes d’essai permettant de vérifier les performances en température d’eau mitigée au point d’utilisation inférieur à 45 °C. Ces méthodes n’excluent pas la sélection de températures supérieures, si elles sont disponibles. Lorsque ces dispositifs sont utilisés pour assurer une protection contre les brûlures pour les enfants, les personnes âgées et les personnes présentant un handicap, la température de l’eau mitigée doit être réglée à une température de baignade appropriée (température du corps : 38 °C), car les enfants sont exposés à un risque de brûlure à des températures plus basses que les adultes. Cela ne dispense pas de surveiller les enfants en bas âge pendant le bain.
La présente norme s’applique aux mitigeurs destinés à l’équipement des appareils sanitaires installés dans les cuisines, les locaux d’hygiène corporelle (y compris tous les locaux équipés de robinetteries sanitaires, par exemple les toilettes et les vestiaires) et les salles de bains, et utilisés dans les conditions spécifiées dans le Tableau 1.
La présente norme s’adresse aux mitigeurs thermostatiques avec une seule sortie ou un petit nombre de points de distribution, qui sont destinés à une utilisation « domestique » (par exemple, un mitigeur alimentant une douche, une baignoire, un lavabo, un bidet). Sont exclus les mitigeurs spécialement conçus pour alimenter un grand nombre de sorties (par exemple, pour une utilisation dans une collectivité).
Les essais décrits ci-après sont des essais de type (essais en laboratoire) et non des essais de contrôle qualité effectués en cours de fabrication.
(...)

Sanitarne armature - Termostatska mešalna armatura (PN 10) - Splošne tehnične zahteve

Ta evropski standard določa splošne konstrukcijske, zmogljivostne in materialne zahteve za termostatske mešalne ventile (TMV) PN 10 in vključuje preskusne metode za preverjanje temperaturnega delovanja mešane vode na mestu uporabe pod 45 °C. To ne izključuje izbire višjih temperatur, če so na voljo. Kadar se te naprave uporabljajo za zaščito otrok, starejših in invalidov pred opeklinami je treba temperaturo mešane vode nastaviti na primerno temperaturo za kopanje (temperatura telesa — 38 °C), saj dobijo otroci opekline pri nižjih temperaturah kot odrasli. To ne pomeni, da ni potrebe po nadzoru majhnih otrok med kopanjem.
Uporablja se za ventile, namenjene za uporabo na sanitarnih napravah v kuhinjah, umivalnicah (vključno z vsemi prostori s sanitarno armaturo, npr. stranišča in garderobe) in kopalnicami, ki delujejo v skladu s pogoji iz razpredelnice 1.
Ta standard omogoča TMV-jem, da napajajo eno samo vtičnico ali majhno število vtičnic v »domači« uporabi (npr. en ventil za nadzor tuša, kopalne kadi, umivalnika, bideja), razen ventilov, posebej zasnovanih za napajanje velikega števila vtičnic (tj. za institucionalno uporabo).
Opisani preskusi so tipski preskusi (laboratorijski preskusi) in ne kontrolni preskusi kakovosti, opravljeni med proizvodnjo.
(...)

General Information

• Status: Published
• Public Enquiry End Date: 29-Sep-2015
• Publication Date: 06-Sep-2017
• ICS: 91.140.70 - Sanitary installations
• Technical Committee: IOVO - Water supply and waste water engineering
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 24-Aug-2017
• Due Date: 29-Oct-2017
• Completion Date: 07-Sep-2017
• Ref Project: EN 1111:2017 - Sanitary tapware - Thermostatic mixing valves (PN 10) - General technical specification

Relations

• Replaces: SIST EN 1111:1998 - Sanitary tapware - Thermostatic mixing valves (PN 10) - General technical specification
• Effective Date: 01-Oct-2017
• Amended By: SIST EN 1111:2017/oprA1:2021 - Sanitary tapware - Thermostatic mixing valves (PN 10) - General technical specification
• Effective Date: 01-May-2021

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.]DKWHYHSanitärarmaturen - Thermostatische Mischer (PN 10) - Allgemeine technische SpezifikationRobinetterie sanitaire - Mitigeurs thermostatiques (PN 10) - Spécifications techniques généralesSanitary tapware - Thermostatic mixing valves (PN 10) - General technical specification91.140.70Sanitarne napraveSanitary installationsICS:Ta slovenski standard je istoveten z:EN 1111:2017SIST EN 1111:2017en,fr,de01-oktober-2017SIST EN 1111:2017SLOVENSKI
STANDARDSIST EN 1111:19981DGRPHãþD



SIST EN 1111:2017



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1111
August
t r s y ICS
{ sä s v rä y r Supersedes EN
s s s sã s { { zEnglish Version
General technical specification Allgemeine technische Spezifikation This European Standard was approved by CEN on
t v April
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s s s sã t r s y ESIST EN 1111:2017



EN 1111:2017 (E) 2 Contents Page European Foreword . 6 Introduction . 7 1 Scope . 8 2 Normative references . 8 3 Terms and definitions . 9 4 Symbols and units . 10 5 Classification . 11 6 Designation. 11 7 Marking/identification . 12 7.1 Marking . 12 7.2 Identification . 12 8 Materials . 12 8.1 Chemical and hygiene requirements . 12 8.2 Exposed surface condition and quality of coating . 12 9 Dimensional characteristics. 13 9.1 General remarks . 13 9.2 Inlet dimensions . 13 9.3 Outlet dimensions . 15 9.4 Mounting dimensions . 17 9.5 Special cases . 20 9.6 Flexible hoses for outlet 2 . 20 9.7 Outlet 2 . 20 10 Backflow protection . 20 11 Test sequence . 21 12 Leaktightness . 21 12.1 General . 21 12.1.1 Principle . 21 12.1.2 Apparatus . 21 12.2 Leaktightness of the obturator and upstream thereof . 21 12.2.1 General . 21 12.2.2 Procedure. 21 12.2.3 Requirements . 21 12.3 Cross-flow between inlets . 22 12.3.1 General . 22 12.3.2 Procedure. 22 12.3.3 Requirements . 22 12.4 Leaktightness downstream of the obturator . 22 12.4.1 Procedure. 22 12.4.2 Requirements . 22 12.5 Leaktightness of manually operated diverter . 22 12.5.1 Procedure. 22 12.5.2 Requirement . 23 SIST EN 1111:2017



EN 1111:2017 (E) 3 12.6 Leaktightness of diverters with automatic return . 23 12.6.1 Procedure . 23 12.6.2 Requirement . 23 13 Performance . 23 13.1 General . 23 13.1.1 Initial settings . 23 13.1.2 Apparatus . 24 13.1.3 Procedure . 24 13.2 Determination of flow rate . 25 13.2.1 Principle . 25 13.2.2 Procedure . 25 13.2.3 Evaluation of the results . 26 13.2.4 Requirements . 26 13.3 Sensitivity . 26 13.3.1 General . 26 13.3.2 Principle . 26 13.3.3 Procedure . 26 13.3.4 Evaluation of results . 27 13.3.5 Requirements . 27 13.4 Fidelity . 28 13.4.1 General . 28 13.4.2 Principle . 28 13.4.3 Procedure . 28 13.4.4 Evaluation of results . 28 13.4.5 Requirements . 28 13.5 Temperature stability . 29 13.5.1 Temperature control operation . 29 13.5.2 Flow rate reduction . 29 13.5.3 Cold supply failure and restoration . 30 13.5.4 Supply pressure variation . 31 13.5.5 Supply temperature variation . 32 13.5.6 Temperature Override Stops . 32 14 Pressure resistance . 33 14.1 General . 33 14.2 Apparatus . 33 14.3 Testing of mechanical performance of the thermostatic mixing valve upstream of the obturator in the closed position . 33 14.3.1 Procedure . 33 14.3.2 Requirement . 33 14.4 Mechanical behaviour downstream of the obturator – Obturator in the open position . 33 14.4.1 Procedure . 33 14.4.2 Requirement . 34 15 Torsional resistance of the operating controls . 34 15.1 General . 34 15.2 Test method . 34 15.2.1 Principle of the test . 34 15.2.2 Apparatus . 34 15.2.3 Procedure . 34 16 Mechanical endurance characteristics . 35 16.1 General . 35 16.2 Endurance test for single sequential control device . 35 SIST EN 1111:2017



EN 1111:2017 (E) 4 16.2.1 Principle . 35 16.2.2 Apparatus . 35 16.2.3 Procedure. 35 16.2.4 Requirement . 36 16.3 Endurance test for on/off flow control device operated by rotating the control handle . 36 16.3.1 Principle . 36 16.3.2 General . 36 16.4 Endurance test for on/off flow control device, combined with diverter mechanism . 36 16.4.1 Principle . 36 16.4.2 Apparatus . 36 16.4.3 Procedure. 36 16.4.4 Requirement . 37 16.5 Endurance test for other on-off flow control device . 37 16.5.1 Principle . 37 16.5.2 Apparatus . 37 16.5.3 Procedure. 37 16.5.4 Requirement . 37 16.6 Mechanical endurance of diverters of thermostatic mixing valves . 38 16.6.1 General . 38 16.6.2 Test method . 38 16.6.3 Requirements . 39 16.7 Mechanical endurance of swivel spouts . 39 16.7.1 General . 39 16.7.2 Test method . 39 16.7.3 Requirements . 40 16.8 Thermal Element . 40 16.8.1 Principle . 40 16.8.2 Temperature adjustable valves (Type 1, 2, 4) . 40 16.8.3 Temperature set valves (Type 5) . 41 16.8.4 Other valves with special control devices (Type 6) . 41 17 Acoustic characteristics . 42 17.1 General . 42 17.2 Procedure. 42 17.2.1 Fitting and operating conditions for thermostatic mixing valves . 42 17.2.2 Test method . 42 17.3 Requirements . 42 17.3.1 Expression of results . 42 17.3.2 Determination of acoustic groups . 42 17.3.3 Flow rate classes (thermostatic mixing valves Type 1, 2, 3) . 42 Annex A (normative)
Test Set-up Descriptions . 44 A.1 General . 44 A.2 Inlet pipework . 44 A.2.1 Thermostat endurance. 44 A.2.2 Performance . 45 A.3 Outlet pipework . 45 A.3.1 General . 45 A.3.2 Outlet for valves without integral atmospheric discharge spouts . 46 SIST EN 1111:2017



EN 1111:2017 (E) 5 A.3.3 Outlet for valves with atmospheric discharge nozzles . 48 Annex B (normative)
Measurements . 49 B.1 Pressure . 49 B.2 Flow . 49 B.3 Temperature . 49 B.3.1 Mounting . 49 B.3.2 Accuracy . 49 B.3.3 Response time . 49 B.4 Angular position . 49 B.5 Duration of transients . 49 Annex C (informative)
Temperature transient . 52 C.1 Positive temperature transient . 52 C.2 Negative temperature transient . 53 Annex D (informative)
Acoustic classification (example) . 54 D.1 Thermostatic mixing valve with nozzle . 54 D.2 Thermostatic mixing valves with shower or shower head outlet . 54 D.3 Thermostatic mixing valves with nozzle and shower or shower head outlet . 54 Bibliography . 56
SIST EN 1111:2017



EN 1111:2017 (E) 6 European Foreword This document (EN 1111:2017) 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 February 2018, and conflicting national standards shall be withdrawn at the latest by February 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1111:1998. The main technical changes compared to the previous version are the following: a) the introduction of Clause 10 on backflow protection; b) the introduction of Clause 11 on test sequence; c) the introduction of Clause 13 on performance; d) the update of chapters on pressure resistance, torsional resistance and mechanical resistance; e) new Annexes A, B, C and D. 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 1111:2017



EN 1111:2017 (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 standard, the following should be noted: — this standard provides no information as to whether the product can be used without restriction in any of the Member state 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. SIST EN 1111:2017



EN 1111:2017 (E) 8 1 Scope This European Standard specifies general constru
...

SLOVENSKI STANDARD
oSIST prEN 1111:2015
01-september-2015
6DQLWDUQHDUPDWXUH7HUPRVWDWVNDPHãDOQDDUPDWXUD316SORãQHWHKQLþQH
]DKWHYH
Sanitary Tapware - Thermostatic Mixing Valves (PN 10) - General Technical
Specification
Sanitärarmaturen - Thermostatische Mischer (PN 10) - Allgemeine technische
Spezifikation
Robinetterie sanitaire - Mitigeurs thermostatiques (PN 10) - Spécifications techniques
générales
Ta slovenski standard je istoveten z: prEN 1111
ICS:
91.140.70 Sanitarne naprave Sanitary installations
oSIST prEN 1111:2015 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 1111:2015

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oSIST prEN 1111:2015

EUROPEAN STANDARD
DRAFT
prEN 1111
NORME EUROPÉENNE

EUROPÄISCHE NORM

June 2015
ICS 91.140.70 Will supersede EN 1111:1998
English Version
Sanitary Tapware - Thermostatic Mixing Valves (PN 10) -
General Technical Specification
Robinetterie sanitaire - Mitigeurs thermostatiques (PN 10) - Sanitärarmaturen - Thermostatische Mischer (PN 10) -
Spécifications techniques générales 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 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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

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

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1111:2015 E
worldwide for CEN national Members.

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oSIST prEN 1111:2015
prEN 1111:2015 (E)
Contents Page
Foreword .6
Introduction .7
1 Scope .8
2 Normative references .8
3 Terms and definitions .9
4 Symbols and units . 10
5 Classification . 10
6 Designation . 11
7 Marking/Identification . 11
7.1 Marking . 11
7.2 Identification . 12
8 Materials . 12
8.1 Chemical and hygiene Requirements . 12
8.2 Exposed surface condition and quality of coating . 12
9 Dimensional characteristics . 12
9.1 General remarks. 12
9.2 Inlet dimensions. 12
9.3 Outlet dimensions. 15
9.4 Mounting dimensions . 17
9.5 Special cases . 20
9.6 Flexible hoses for shower outlets . 20
9.7 Shower outlets . 20
10 Backflow protection. 20
11 Test sequence . 21
12 Leaktightness . 21
12.1 General . 21
12.1.1 Principle . 21
12.1.2 Apparatus . 21
12.2 Leaktightness of the obturator and upstream thereof . 21
12.2.1 General . 21
12.2.2 Procedure . 21
12.2.3 Requirements . 21
12.3 Cross-flow between inlets . 22
12.3.1 General . 22
12.3.2 Procedure . 22
12.3.3 Requirements . 22
12.4 Leaktigthness downstream of the obturator . 22
12.4.1 Procedure . 22
12.4.2 Requirements . 22
12.5 Leaktightness of manually operated diverter . 22
12.5.1 Procedure . 22
12.5.2 Requirement . 23
12.6 Leaktightness of diverters with automatic return . 23
12.6.1 Procedure . 23
12.6.2 Requirement . 23
2

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oSIST prEN 1111:2015
prEN 1111:2015 (E)
13 Performance . 23
13.1 General . 23
13.1.1 Initial Settings . 23
13.1.2 Apparatus . 24
13.1.3 Procedure . 24
13.2 Determination of flow rate . 25
13.2.1 Principle. 25
13.2.2 Procedure . 25
13.2.3 Evaluation of the results . 26
13.2.4 Requirements . 26
13.3 Sensitivity . 26
13.3.1 General . 26
13.3.2 Principle. 26
13.3.3 Procedure . 26
13.3.4 Evaluation of results . 26
13.3.5 Requirements . 27
13.4 Fidelity . 28
13.4.1 General . 28
13.4.2 Principle. 28
13.4.3 Procedure . 28
13.4.4 Evaluation of results . 29
13.4.5 Requirements . 29
13.5 Temperature Stability . 29
13.5.1 Temperature control operation . 29
13.5.2 Flow rate reduction . 30
13.5.3 Cold supply failure and restoration . 30
13.5.4 Supply pressure variation . 31
13.5.5 Supply temperature variation . 32
13.5.6 Temperature Override Stops . 32
14 Pressure Resistance . 33
14.1 General . 33
14.2 Apparatus . 33
14.3 Testing of mechanical performance of the thermostatic mixing valve upstream of the

obturator in the closed position . 33
14.3.1 Procedure . 33
14.3.2 Requirement . 33
14.4 Mechanical behaviour downstream of the obturator – Obturator in the open position . 33
14.4.1 Procedure . 33
14.4.2 Requirement . 34
15 Torsional resistance of the operating controls . 34
15.1 General . 34
15.2 Test method . 34
15.2.1 Principle. 34
15.2.2 Apparatus . 34
15.2.3 Procedure . 34
16 Mechanical endurance characteristics . 35
16.1 General . 35
16.2 Endurance test for single sequential control device . 35
16.2.1 Principle. 35
16.2.2 Apparatus . 35
16.2.3 Procedure . 35
16.2.4 Requirement . 36
16.3 Endurance test for on/off flow control device operated by rotating the control handle . 36
16.3.1 Principle. 36
16.3.2 General . 36
3

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oSIST prEN 1111:2015
prEN 1111:2015 (E)
16.4 Endurance test for on/off flow control device, combined with diverter mechanism . 36
16.4.1 Principle . 36
16.4.2 Apparatus . 36
16.4.3 Procedure . 36
16.4.4 Requirement . 37
16.5 Endurance test for other on-off flow control device . 37
16.5.1 Principle . 37
16.5.2 Apparatus . 37
16.5.3 Procedure . 37
16.5.4 Requirement . 37
16.6 Mechanical endurance of diverters of thermostatic mixing valves . 38
16.6.1 General . 38
16.6.2 Test method . 38
16.6.3 Requirements . 39
16.7 Mechanical endurance of swivel spouts . 39
16.7.1 General . 39
16.7.2 Test method . 39
16.7.3 Requirements . 40
16.8 Thermal Element . 40
16.8.1 Principle . 40
16.8.2 Temperature adjustable valves (single sequential not included) . 40
16.8.3 Temperature set valves (Type 4 and Type 5 valves) . 40
17 Acoustic characteristics . 41
17.1 General . 41
17.2 Procedure . 41
17.2.1 Fitting and operating conditions for thermostatic mixing valves . 41
17.2.2 Test method . 41
17.3 Requirements . 42
17.3.1 Expression of results . 42
17.3.2 Determination of acoustic groups . 42
17.3.3 Flow rate classes (thermostatic mixing valves Type 1, 2, 3) . 42
Annex A (normative) Test Set-up Descriptions . 43
A.1 General . 43
A.2 Inlet pipework . 43
A.2.1 Thermostat endurance . 43
A.2.2 Performance . 44
A.3 Outlet pipework . 44
A.3.1 General . 44
A.3.2 Outlet for valves without integral atmospheric discharge spouts . 44
A.3.3 Outlet for valves with atmospheric discharge nozzles . 47
Annex B (normative) Measurements . 48
B.1 Pressure . 48
B.2 Flow . 48
B.3 Temperature . 48
B.3.1 Mounting . 48
B.3.2 Accuracy . 48
B.3.3 Response time . 48
B.4 Angular position . 48
B.5 Duration of transients . 48
Annex C (informative) Temperature Transient . 51
C.1 Positive Temperature Transient . 51
C.2 Negative Temperature Transient . 52
Annex D (informative) Acoustic classification (example) . 53
D.1 Thermostatic mixing valve with nozzle . 53
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prEN 1111:2015 (E)
D.2 Thermostatic mixing valves with shower or shower head outlet . 53
D.3 Thermostatic mixing valves with nozzle and shower or shower head outlet . 53
Bibliography . 55

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oSIST prEN 1111:2015
prEN 1111:2015 (E)
Foreword
This document (prEN 1111:2015) 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 1111:1998.
The main technical changes compared to the previous version are the following:
a) the introduction of Clause 9 on backflow protection;
b) the introduction of Clause 10 on test sequence;
c) the introduction of Clause 12 on performance;
d) the update of chapters on pressure resistance, torsional resistance and mechanical resistance;
e) new Annexes A, B, C and D.
6

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oSIST prEN 1111:2015
prEN 1111:2015 (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, the following should be noted:
— this standard provides no information as to whether the product can be used without restriction in any of
the Member state 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.
7

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oSIST prEN 1111:2015
prEN 1111:2015 (E)
1 Scope
This European Standard specifies general construction, performance and material requirements for PN 10
thermostatic mixing valves (TMV) and includes test methods for the verification of mixed water temperature
performance at the point of use below 45 °C. This does not exclude the selection of higher temperatures
where available. When these devices are used to provide anti-scald protection for children, elderly and
disabled persons the mixed water temperature needs to be set at a suitable bathing temperature (body
temperature – 38 °C) as children are at risk to scalding at lower temperatures than adults. This does not
obviate the need for supervision of young children during bathing.
It applies to valves intended for use on sanitary appliances in kitchens, washrooms (incl. all rooms with
sanitary tapware, e.g. toilets and cloakrooms) and bath rooms operating under the conditions specified in
Table 1.
This standard allows TMVs to supply a single outlet or a small number of out
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