kSIST FprEN 1111:2025
(Main)Sanitary tapware - Thermostatic mixing valves (PN 10) - General technical specification
Sanitary tapware - Thermostatic mixing valves (PN 10) - General technical specification
This document 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 temperature (body temperature approximately 38 °C). In particular children are at risk to scalding at lower temperatures than adults. This does not obviate the need for supervision of young children.
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 document 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 and/or 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.
Table 1 - Conditions of use
[...table not reproduced...]
Sanitärarmaturen - Thermostatischer Mischer (PN 10) - Allgemeine technische Spezifikation
Dieses Dokument legt allgemeine Anforderungen an Konstruktion (Ausführung), Verhalten (Funktion) und an Werkstoffe für thermostatische Mischer, PN 10, (Mischer) für den Niederdruckbereich 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 Dieses Dokument legt allgemeine Anforderungen an Konstruktion (Ausführung), Verhalten (Funktion) und an Werkstoffe für thermostatische Mischer, PN 10, (Mischer) für den Niederdruckbereich 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 Temperatur (Körpertemperatur etwa 38 °C) eingestellt werden. Insbesondere bei Kindern besteht die Gefahr, sich bereits bei niedrigeren Temperaturen als Erwachsene zu verbrühen. Das macht jedoch nicht die Beaufsichtigung von Kleinkindern überflüssig.
Diese Norm gilt für die Verwendung an Sanitärausstattungsgegenständen in Küchen, Waschräumen (einschließlich aller Räume mit Sanitärarmaturen, z. B. Toiletten) und Bädern unter den in Tabelle 1 festgelegten Bedingungen.
Dieses Dokument 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 und/oder 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 Typprüfungen (Laborprüfungen) und nicht als Prüfungen zur Qualitätskontrolle während der Herstellung vorgesehen.
Tabelle 1 — Anwendungsbedingungen
[...table not reproduced...]
Robinetterie sanitaire - Mitigeurs thermostatiques (PN 10) - Spécifications techniques générales
Le présent document 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 d’environ 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.
Le présent document traite des mitigeurs thermostatiques avec une seule sortie ou un petit nombre de points de puisage, qui sont destinés à une utilisation « domestique » (par exemple, un mitigeur alimentant une douche, un bain, un lavabo et/ou 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
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 1111:2024
01-julij-2024
Nadomešča:
SIST EN 1111:2017
Sanitarne armature - Termostatska mešalna armatura (PN 10) - Splošne tehnične
zahteve
Sanitary tapware - Thermostatic mixing valves (PN 10) - General technical specification
Sanitärarmaturen - Thermostatischer 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 1111:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN 1111:2024
oSIST prEN 1111:2024
DRAFT
EUROPEAN STANDARD
prEN 1111
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2024
ICS 91.140.70 Will supersede EN 1111:2017
English Version
Sanitary tapware - Thermostatic mixing valves (PN 10) -
General technical specification
Robinetterie sanitaire - Mitigeurs thermostatiques (PN Sanitärarmaturen - Thermostatische Mischer (PN 10) -
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye 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: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1111:2024 E
worldwide for CEN national Members.
oSIST prEN 1111:2024
prEN 1111:2024 (E)
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 . 19
9.6 Flexible hoses for outlet 2 . 19
9.7 Outlet 2 . 19
10 Backflow protection . 19
11 Test sequence . 20
12 Leaktightness . 20
12.1 General . 20
12.1.1 Principle . 20
12.1.2 Apparatus . 20
12.2 Leaktightness of the obturator and upstream thereof . 20
12.2.1 General . 20
12.2.2 Procedure. 20
12.2.3 Requirements . 20
12.3 Cross-flow between inlets . 21
12.3.1 General . 21
12.3.2 Procedure. 21
12.3.3 Requirements . 21
12.4 Leaktightness downstream of the obturator . 21
12.4.1 Procedure. 21
12.4.2 Requirements . 21
12.5 Leaktightness of manually operated diverter . 21
12.5.1 Procedure. 21
12.5.2 Requirement . 22
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prEN 1111:2024 (E)
12.6 Leaktightness of diverters with automatic return . 22
12.6.1 Procedure . 22
12.6.2 Requirement . 22
13 Performance . 22
13.1 General . 22
13.1.1 Initial settings . 22
13.1.2 Apparatus . 23
13.1.3 Procedure . 23
13.2 Determination of flow rate . 24
13.2.1 Principle . 24
13.2.2 Procedure . 24
13.2.3 Evaluation of the results . 25
13.2.4 Requirements . 25
13.3 Sensitivity . 25
13.3.1 General . 25
13.3.2 Principle . 25
13.3.3 Procedure . 25
13.3.4 Evaluation of results . 26
13.3.5 Requirements . 26
13.4 Fidelity . 27
13.4.1 General . 27
13.4.2 Principle . 27
13.4.3 Procedure . 27
13.4.4 Evaluation of results . 27
13.4.5 Requirements . 27
13.5 Temperature stability . 28
13.5.1 Temperature control operation . 28
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 . 33
14 Pressure resistance . 34
14.1 General . 34
14.2 Apparatus . 34
14.3 Testing of mechanical performance of the thermostatic mixing valve upstream of the
obturator in the closed position . 34
14.3.1 Procedure . 34
14.3.2 Requirement . 34
14.4 Mechanical behaviour downstream of the obturator – Obturator in the open position . 35
14.4.1 Procedure . 35
14.4.2 Requirement . 35
15 Torsional resistance of the operating controls . 35
15.1 General . 35
15.2 Test method . 35
15.2.1 Principle of the test . 35
15.2.2 Apparatus . 35
15.2.3 Procedure . 35
16 Mechanical endurance characteristics . 36
16.1 General . 36
16.2 Endurance test for single sequential control device . 36
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prEN 1111:2024 (E)
16.2.1 Principle . 36
16.2.2 Apparatus . 36
16.2.3 Procedure. 36
16.2.4 Requirement . 37
16.3 Endurance test for on/off flow control device operated by rotating the control
handle . 37
16.3.1 Principle . 37
16.3.2 General . 37
16.4 Endurance test for on/off flow control device, combined with diverter mechanism . 37
16.4.1 Principle . 37
16.4.2 Apparatus . 37
16.4.3 Procedure. 37
16.4.4 Requirement . 38
16.5 Endurance test for other on-off flow control device . 38
16.5.1 Principle . 38
16.5.2 Apparatus . 38
16.5.3 Procedure. 38
16.5.4 Requirement . 39
16.6 Mechanical endurance of diverters of thermostatic mixing valves . 39
16.6.1 General . 39
16.6.2 Test method . 39
16.6.3 Requirements . 40
16.7 Mechanical endurance of swivel spouts . 40
16.7.1 General . 40
16.7.2 Test method . 40
16.7.3 Requirements . 41
16.8 Thermal Element . 41
16.8.1 Principle . 41
16.8.2 Temperature adjustable valves (Type 1, 2, 4) . 41
16.8.3 Temperature set valves (Type 5) . 42
16.8.4 Other valves with special control devices (Type 6) . 42
17 Acoustic characteristics . 43
17.1 General . 43
17.2 Procedure. 43
17.2.1 Fitting and operating conditions for thermostatic mixing valves . 43
17.2.2 Test method . 43
17.3 Requirements . 43
17.3.1 Expression of results . 43
17.3.2 Determination of acoustic groups . 43
17.3.3 Flow rate classes (thermostatic mixing valves Type 1, 2, 3) . 43
Annex A (normative) Test Set-up Descriptions . 45
A.1 General . 45
A.2 Inlet pipework . 45
A.2.1 Thermostat endurance. 45
A.2.2 Performance . 46
A.3 Outlet pipework . 46
A.3.1 General . 46
A.3.2 Outlet for valves without integral atmospheric discharge spouts . 47
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prEN 1111:2024 (E)
A.3.3 Outlet for valves with atmospheric discharge nozzles . 50
Annex B (informative) Measurements . 51
B.1 Pressure . 51
B.2 Flow . 51
B.3 Temperature . 51
B.3.1 Mounting . 51
B.3.2 Accuracy . 51
B.3.3 Response time . 51
B.4 Angular position . 51
B.5 Duration of transients . 51
Annex C (informative) Temperature transient . 54
C.1 Positive temperature transient . 54
C.2 Negative temperature transient . 55
Annex D (informative) Acoustic classification (example) . 56
D.1 Thermostatic mixing valve with nozzle . 56
D.2 Thermostatic mixing valves with shower or shower head outlet . 56
D.3 Thermostatic mixing valves with nozzle and shower or shower head outlet . 56
Bibliography . 58
oSIST prEN 1111:2024
prEN 1111:2024 (E)
European foreword
This document (prEN 1111:2024) 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 1111:2017.
prEN 1111:2024 includes the following significant technical changes with respect to EN 1111:2017:
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.
oSIST prEN 1111:2024
prEN 1111:2024 (E)
Introduction
In respect of potential adverse effects on the quality of water intended for human consumption, caused
by the product covered by this document, it provides no information as to whether the product can be
used without restriction in any of the Member state of the EU or EFTA;
NOTE While awaiting the adoption of verifiable European criteria, attention is also drawn to national
regulations that can apply.
oSIST prEN 1111:2024
prEN 1111:2024 (E)
1 Scope
This document 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 approximately 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 document 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 and/or 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.
Table 1 — Conditions of use
Supply Operating range
Pressure limits recommended
Static ≤ 1 MPa [≤10 bar]
Dynamic ≥ 0,05 MPa [≥0,5 bar] (0,1 to 0,5) MPa [(1 to 5) bar]
Temperature
Hot ≤ 90°C (55 to 65) °C
Cold ≤ 25°C (5 to 20) °C
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 200, Sanitary tapware — Single taps and combination taps for water supply systems of type 1 and type
2 — General technical specification
EN 246, Sanitary tapware — General specifications for aerators
EN 248, Sanitary tapware — General specification for electrodeposited coatings of Ni-Cr
EN 1057, Copper and copper alloys — Seamless, round copper tubes for water and gas in sanitary and
heating applications
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
oSIST prEN 1111:2024
prEN 1111:2024 (E)
EN 1717, Protection against pollution of potable water in water installations and general requirements of
devices to prevent pollution by backflow
EN 13618, Flexible hose assemblies in drinking water installations — Functional requirements and test
methods
EN 13959, Anti-pollution check valves — DN 6 to DN 250 inclusive family E, type A, B, C and D
EN 14506, Devices to prevent pollution by backflow of potable water — Automatic diverter — Family H,
type C
EN 16145, Sanitary tapware — Extractable outlets for sink and basin mixers — General technical
specification
EN 60584 (all parts), Thermocouples (IEC 60584)
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)
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)
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)
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)
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)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
3.1
thermostatic mixing valve
TMV
valve, with one or more outlets, which mixes hot and cold water and automatically controls the mixed
water to a selected temperature
3.2
fidelity
reproducibility and accuracy of temperature selection
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prEN 1111:2024 (E)
3.3
obturator
movable component of the valve whose position in the fluid flow path permits, restricts or obstructs the
fluid flow
Note 1 to entry: The flow rate between no flow and maximum flow conditions can be affected either by the same
control device or a separate flow control device, where fitted.
3.4
outlet 1
default position of the diverter
3.5
outlet 2
outlet(s) other than outlet 1
4 Symbols and units
For the purposes of this document, the symbols and units given in Table 2 apply.
Table 2 — Symbols and units
Symbol Characteristic Unit
D internal diameter of tube or casing mm
f thickness of the annular slit of Type C pressure take-off tees mm
i width of the annular slit of Type C pressure take-off tees mm
ϑ temperature peak to peak °C
PP
p pressure of cold water supply MPa (bar)
c
p pressure of hot water supply MPa (bar)
h
Q flow rate of cold water l/s (l/min)
c
Q flow rate of hot water l/s (l/min)
h
Q + Q flow rate of mixed water l/s (l/min)
c h
t time when equilibrium is disturbed s
t time when ϑ = ϑ + ϑ s
1 mix 0 x
t = t +1 s s
2 1
t = 5 s s
T temperature of cold water supply °C
c
T temperature of hot water supply °C
h
T temperature of mixed water °C
m
x distance mm
x distance mm
oSIST prEN 1111:2024
prEN 1111:2024 (E)
Symbol Characteristic Unit
ϑ Set temperature °C
ϑ Temperature amplitude °C
x
ϑ Cold water temperature (Outlet temperature) °C
c
ϑ Hot water temperature (Outlet temperature) °C
h
ϑ Mixed water temperature °C
mix
5 Classification
This classification covers the following types of TMVs:
a) Type 1 - Single control: valves with a single control device regulating flow and temperature; (actuator
movement in two planes);
b) Type 2 - Dual control: valves with separate control devices regulating flow and temperature;
c) Type 3 - Single sequential control: valves with a single control operating through a predetermined
sequence of flow and temperature. These shall have a shut-off device; (actuator movement in one
plane);
d) Type 4 - TMVs without flow control device;
e) Type 5 - Preset: valves not adjustable by the user of a sanitary appliance;
f) Type 6 - Other: valves with special control devices.
6 Designation
TMVs covered by this document are designated as follows:
a) its nominal inlet size, with or without diverter (see Table 3);
b) type of body (see Table 3);
c) type of outlet (see Table 3);
d) the sanitary appliance on which it shall be used (Table 3);
e) the method of mounting (see Table 3);
f) its acoustic group and flow rate classes (Clause 17 and Clause 13);
g) the reference to this document (EN 1111).
EXAMPLE TMV 1/2 with diverter, exposed body, fixed nozzle outlet bath/shower, horizontal mounting, group
I class C/B EN 1111.
oSIST prEN 1111:2024
prEN 1111:2024 (E)
Table 3 — Designation
Type of tap TMV with or without diverter and
type of diverter (if applicable)
Type of body Single or multi-hole, exposed, or
concealed
Type of outlet Fixed, moveable spout, with or
without flow rate regulator
Intended use Basin, bidet, sink, bath or shower
Mounting method Horizontal or vertical surfaces
Acoustic group and classification Group I, or group II, or unclassified
Flow rate class Z, A, S, B, C, D
Reference to this document EN 1111
Water saving properties Yes / No
7 Marking/identification
7.1 Marking
TMVs shall be permanently and legibly marked with:
a) the manufacturer's or agent's name or identification on the body or handle;
b) the acoustic group and flow rate class or classes if classified.
A bath/shower mixer shall indicate both flow rate classes (the first for the bath outlet (outlet 1) and the
second for the shower outlet (outlet 2)).
For water saving mixing valves, appropriate information to installers and users shall be provided.
7.2 Identification
The temperature control device for the valve shall be identified by means of a scale or symbols or colours
or any combination thereof.
TMVs shall be legibly marked to indicate cold / hot inlets.
NOTE Exposed valves need only one identification of cold or hot inlet.
8 Materials
8.1 Chemical and hygiene requirements
All materials coming into contact with water intended for human consumption shall present no health
risk nor cause any change to the water in terms of quality, appearances, smell or taste.
8.2 Exposed surface condition and quality of coating
Exposed chromium plated surfaces and Ni-Cr coatings shall comply with the requirements of EN 248.
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prEN 1111:2024 (E)
9 Dimensional characteristics
9.1 General remarks
The design and construction of components without defined dimensions permits various design solutions
to be adopted by the manufacturer.
Special cases are covered in 9.5.
9.2 Inlet dimensions
Inlet dimensions shall be as specified in Table 4, Figure 1, Figure 2 and Figure 3.
Table 4 — Inlet dimensions (Single- and multi-hole combination TMVs)
Inlet dimensions Comments
Shank, Union, Captive nut
A G 1/2 B
Shank, Union In accordance with EN ISO 228-1
A 1 G 3/4 B
A 2 9 mm min Captive nut
Useful thread length
Shank, Union (straight
A 3 15 mm min
or eccentric)
Connecting centres
a
(150 ± 1) mm Supply connection, Straight unions
G
2 – hole wall mounted
with eccentric unions (extension of this
G 1 (140 to 160) mm
range is permitted)
a
(150 ± 1) mm
G
Multi-hole
G 2 (200 ± 3,5) mm
combination TMV
G 3 (180 ± 5) mm
Inlet connections
N 1 (12,3 + 0,2) mm
Type A size 1/2
N 2 5 mm min
N 1 (15,2 ± 0,05) mm
Type B size 1/2
30° chamfer/flat 0,3
N 2 13 mm min
N 1 (14,7 + 0,3) mm
Type C size 1/2
N 2 6,4 mm min
N 1 (19,9 + 0,3) mm
Type C size 3/4
N 2 6,4 mm min
∅ 10 mm, 12 mm, Plain end, male or
T Copper tube(s) or flexible hose(s)
15 mm, G 1/2 or G 3/8 female
Tube(s) or flexible hose(s)
U 350 mm min
Flexible hoses in accordance with EN 13618
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.
oSIST prEN 1111:2024
prEN 1111:2024 (E)
Key
1 flexible hose
2 plain tube
Figure 1 — Inlet dimensions - Single hole TMVs
Figure 2 — Multi-hole combination TMVs
oSIST prEN 1111:2024
prEN 1111:2024 (E)
Type A Type B Type C
Figure 3 — Supply connections for TMVs and remote outlets
9.3 Outlet dimensions
Outlet dimensions shall be as specified in Table 5, Figure 4, Figure 5, Figure 6.
When nozzle outlets are used with flow rate regulators conforming with 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 5 — Outlet dimensions (Remote outlets, single- and multi-hole combination TMVs)
a
Comments
Outlet dimensions
Dimension from lowest point of the outlet
Outlet orifice
orifice including any flow rate regulator or flow
— Lowest point
straightener, to the mounting surface.
E 25 mm min
NOTE Regulations exist in some EU Member
— All TMVs and outlets
States that set dimensions greater than those
indicated in this document.
Horizontal mounted
D 1 90 mm min
combination TMV
Wall mounted
combination TMV
D 3 115 mm min
Separate spout
A G 1/2 B
Remote outlet In accordance with EN ISO 228-1
A 1 G 3/4 B
A 4 7,5 mm min. Useful thread length
Outlet 2
A 5 9,5 mm min. Free length of connection
NOTE Nozzle outlets which are not in accordance with EN 246 are covered by 9.5.
a
Nozzle outlets to accept flow rate regulators shall be in accordance with EN 246.
oSIST prEN 1111:2024
prEN 1111:2024 (E)
Figure 4 — Remote outlet
Figure 5 — Single hole combination of remote outlet
Figure 6 — Bath shower combination or remote outlet
oSIST prEN 1111:2024
prEN 1111:2024 (E)
9.4 Mounting dimensions
Mounting dimensions shall be as specified in Table 6, Figure 7, Figure 8 and Figure 9.
Table 6 — Mounting dimensions (Single- and multi-hole TMVs)
Dimensions Comments
Shank diameter
24 mm
H 1 Two hole TMVs size 1/2 Fixed centres
max
29 mm separate outlet, side spray, 3 hole TMV size
H 2
max 1/2 Adjustable centres
Single hole TMV, 2-hole TMV size 1/2 or 3/4
33,5 mm
H 3
max
3-hole TMV size 1/2
Base or flange
50 mm
J 1 2-hole TMV size 3/4
min
Dimension of base or flange
45 mm Bath, Bath/Shower, Basin, Bidet, Sink TMV
J 2
min size 1/2
50 mm
J 3 Single and multi-hole TMV Diameter of clamping washer
max
32 mm
V Basin, Bidet, Sink
max
35 mm
V 1 Bath – Two hole TMV Flange projection to rear
max
47 mm
V 3 3-hole TMV
max
Minimum range (mm) of
Dimension which allows TMVs and outlets to be fitted on
L supports, which allows the
to supports of thickness between 1 mm and 18 mm
installation of the TMV
oS
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