SIST EN 15091:2024

SLOVENSKI STANDARD
01-junij-2024
Sanitarne armature - Elektronsko odpiranje in zapiranje sanitarnih armatur
Sanitary tapware - Electronic opening and closing sanitary tapware
Sanitärarmaturen - Sanitärarmaturen mit elektronischer Öffnungs- und Schließfunktion
Robinetterie sanitaire - Robinet sanitaire à ouverture et fermeture électroniques
Ta slovenski standard je istoveten z: EN 15091:2024
ICS:
91.140.70 Sanitarne naprave Sanitary installations
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 15091
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2024
EUROPÄISCHE NORM
ICS 91.140.70 Supersedes EN 15091:2013
English Version
Sanitary tapware - Electronic opening and closing sanitary
tapware
Robinetterie sanitaire - Robinet sanitaire à ouverture Sanitärarmaturen - Sanitärarmaturen mit
et fermeture électroniques elektronischer Öffnungs- und Schließfunktion
This European Standard was approved by CEN on 5 February 2024.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, 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.
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. EN 15091:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 5
Introduction . 6
1 Scope . 7
2 Normative references . 10
3 Terms and definitions . 11
4 General requirements and testing . 11
4.1 Marking . 11
4.2 Identification . 11
4.3 Materials . 11
4.3.1 Chemical and hygienic requirements . 11
4.3.2 Exposed surface conditions . 11
4.4 Functions . 12
4.5 Backflow protection . 12
4.6 Electric characteristics and requirements . 12
4.6.1 General. 12
4.6.2 Electrical safety . 12
4.6.3 Electrical operation of solenoid valves . 13
4.6.4 Electric strength and insulation resistance of the solenoid valve . 13
4.6.5 Operational safety . 13
4.7 Leaktightness characteristics . 14
4.7.1 General. 14
4.7.2 Principle . 14
4.7.3 Apparatus . 14
4.7.4 Leaktightness of tapware upstream of the obturator . 14
4.7.5 Leaktightness of tapware downstream of the obturator with the obturator open . 14
4.7.6 Leaktightness tests - Summary table . 15
4.8 Pressure resistance characteristics - mechanical performance under pressure . 15
4.8.1 General. 15
4.8.2 Principle . 15
4.8.3 Apparatus . 15
4.8.4 Procedure . 15
4.8.5 Requirements . 16
5 Requirements and testing for tapware . 16
5.1 General. 16
5.2 Dimensional characteristics . 16
5.2.1 General. 16
5.2.2 Tap with visible body for horizontal surfaces . 16
5.2.3 Taps with visible body for mounting on vertical surfaces . 18
5.2.4 In-line tapware with threaded inlet and outlet . 18
5.2.5 Concealed tapware for vertical surfaces . 19
5.2.6 Mixing valves for horizontal surface . 19
5.2.7 Mixing valves with visible body for mounting on vertical surfaces with captive nuts
and eccentric unions . 21
5.2.8 Mixing valves with opposed inlets . 21
5.2.9 Nozzle outlets for use with aerators with integrated flow regulators . 22
5.2.10 Special cases . 22
5.3 Hydraulic characteristics . 23
5.3.1 General . 23
5.3.2 Test apparatus for tapware intended for Type 1 water supply systems . 23
5.3.3 Principle of the flow test . 27
5.3.4 Requirements . 28
5.3.5 Cross flow between hot and cold water . 28
5.4 Water hammer . 28
5.4.1 Principle of water hammer test . 28
5.4.2 Test apparatus . 28
5.4.3 Procedure . 29
5.4.4 Requirements . 30
5.5 Endurance . 30
5.5.1 General . 30
5.5.2 Principle . 30
5.5.3 Procedure for single taps . 30
5.5.4 Procedure for mixers . 30
5.5.5 Requirements . 31
5.6 Acoustic characteristics . 31
5.6.1 General . 31
5.6.2 Procedure . 31
5.6.3 Requirements . 32
6 Requirements and testing for flushing valves for urinals . 33
6.1 General . 33
6.2 Definitions . 33
6.2.1 Single flush urinal valves . 33
6.2.2 Siphon action flushing urinal valves . 33
6.2.3 Isolating valves for flushing urinal valves . 33
6.3 Classification of flushing urinal valves . 33
6.4 Designation . 33
6.5 Dimensional characteristics . 34
6.6 Hydraulic characteristics . 35
6.6.1 General . 35
6.6.2 Test method . 35
6.7 Measurement of water hammer for urinal flushing valves . 35
6.7.1 Principle of water hammer test . 35
6.7.2 Test apparatus . 36
6.7.3 Procedure . 36
6.7.4 Requirements . 36
6.8 Mechanical endurance . 37
6.8.1 General . 37
6.8.2 Apparatus . 37
6.8.3 Procedure . 37
6.8.4 Requirements . 37
7 Requirements and testing for flushing valves for WCs . 37
7.1 General . 37
7.2 Definitions . 38
7.3 Classification . 38
7.3.1 General . 38
7.4 Dimensional characteristics . 39
7.5 Hydraulic characteristics . 40
7.5.1 General . 40
7.5.2 Test method . 40
7.5.3 Testing of the flow rate/impact force at lower dynamic pressure . 44
7.5.4 Testing of the flow rate/Volume at lower dynamic pressure . 45
7.5.5 Testing of flush flow rate/impact force at upper dynamic pressure . 46
7.5.6 Measurement of water hammer . 48
7.6 Principle and verification of atmospheric pipe interrupters of WC flushing valves . 48
7.7 Mechanical endurance . 48
7.7.1 General. 48
7.7.2 Procedure . 48
7.7.3 Minimum requirements . 48
7.8 Acoustic characteristics . 48
Annex A (normative) Design of pressure take-off tees . 49
Annex B (informative) Potential consequences of use outside the recommended operating
limits . 51
Annex C (informative) Minimum flow rates and test pressures according to application . 52
Bibliography . 53
European foreword
This document (EN 15091:2024) 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 September 2024, and conflicting national standards shall
be withdrawn at the latest by September 2024.
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 15091:2013.
In comparison with the previous edition, the following technical modifications have been made:
— markings, materials and classifications have been revised;
— test procedures w have been updated;
— adjustments to EN 12541 have been integrated;
— Annex C has been added;
— the standard has been completely revised editorially and technically.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, 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 the United
Kingdom.
Introduction
This document is relevant for electrically operated (opening and closing) sanitary tapware used with
sanitary appliances, with a maximum voltage of 42 V AC/72 V DC, in the enclosure of the tap.
Such tapware can be operated by any electrical source e.g. mains with a transformer, battery, etc.
Flow and temperature regulation devices installed either upstream or downstream of the tapware are
not covered by this specification.
The purpose of this document is to define requirements for the:
a) marking, identification, leak-tightness, electrical and operational safety, mechanical performance
and limitation of water hammer for electrical opening and closing tapware;
b) dimensional, hydraulic, endurance and acoustic characteristics;
c) procedure of tests in order to verify these characteristics.
As for possible unfavourable effects of the product to which this document applies, on the quality of water
intended for human consumption:
d) no information is provided by this document on possible use restrictions of the product in any of the
member states of the EU or EFTA;
e) it should be noted that, while awaiting the adoption of verifiable European criteria, existing national
regulations concerning the use and/or characteristics of this product remain in force.
Requirements for different products are defined in different clauses of this document as illustrated in
Table 1.
Table 1 — Identification of the clauses of this document

Clause 4. General
requirements and X X X X X
testing
Clause 5. Requirements
X X X X X
and testing for tapware
Clause 6. Requirements
and testing for flushing X X X X
valves for urinals
Clause 7. Requirements
and testing for flushing X X X X X
valves for WCs
MARKING
DIMENSIONAL
CHARACTERISTICS
ENDURANCE
ACOUSTIC
ELECTRICAL
SAFETY
OPERATIONAL
SAFETY
LEAKTIGHTNESS
MECHANICAL
RESISTANCE
HYDRAULIC
CHARACTERISTICS
WATER HAMMER
WATER HAMMER
FOLLOWING
PRODUCT
1 Scope
The purpose of this document is to specify requirements for marking, identification, leaktightness,
electrical and operational safety and mechanical resistance for sanitary tapware with opening and closing
controlled electronically.
The conditions of use for the supply system type are specified in Table 2:
Table 2 — Conditions of use
Recommended limits of
Limits of use
operation
Tapware with Tapware Tapware with
Water supply
normally open with normally open Tapware with

system
or normally latching or normally latching
closed (bistable) closed (bistable)
(monostable) solenoid (monostable) solenoid valves
solenoid valves valves solenoid valves
Minimum
0,05 MPa 0,05 MPa (0,1 to 0,5) MPa (0,1 to 0,5) MPa
dynamic
(0,5 bar) (0,5 bar) [(1 to 5) bar] [(1 to 5) bar]
pressure
Type 1
(see Figure 1)
Maximum
1 MPa
static 1 MPa (10 bar) 1 MPa (10 bar) 0,8 MPa (8 bar)
(10 bar)
pressure
Minimum (0,01 to
0,01 MPa 0,01 MPa (0,01 to 0,2) MPa
dynamic 0,2) MPa [(0,1
(0,1 bar) (0,1 bar) [(0,1 to 2) bar]
pressure to 2) bar]
a
Type 2
(see Figure 2)
Maximum
1 MPa
static 1 MPa (10 bar) 1 MPa (10 bar) 0,8 MPa (8 bar)
(10 bar)
pressure
Temperature of the water ≤ 75 °C ≤ 75 °C ≤ 65 °C ≤ 65 °C
a
For Type 2, the manufacturer is expected to declare the minimum operating pressure at which opening,
closing and the specified flow rate can be obtained.
There is usually no acoustic classification for tapware used in supply systems of Type 2 and no specifications
governing the level of noise emissions from these water installations. If supply pressures are such that
excessive noise is generated it is advised that pressure or flow regulators are fitted in the system. Or where
practicable, tapware conforming to the appropriate acoustic classification are used.
Annex B lists possible consequences of using a product outside its recommended operating range.
Key
1 cold water 3 mains supply pipe (supply pressures from (0,05 to 1,0) MPa [(0,5 to 10) bar]
2 hot water 4 water heater
Figure 1 — Type 1 — Supply system with a pressure range of (0,05 to 1,0) MPa [(0,5 to 10) bar]
Key
1 cold water storage cistern (cover omitted for clarity)
2 warning pipe
3 vent pipe
4 hot water cylinder
5 alternative cistern fed cold supply to sanitary appliances
6 to boiler
7 mains supply pipe (Supply pressures up to 8 bar)
Figure 2 — Type 2 — Supply system with a pressure range of (0,01 to 0,8) MPa [(0,1 to 8) bar]
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 31, Wash basins — Connecting dimensions
EN 35, Pedestal and wall-hung bidets with over-rim supply — Connecting dimensions
EN 246, Sanitary tapware — General specifications for aerators
EN 248, Sanitary tapware — General specification for electrodeposited coatings of Ni-Cr
EN 695, Kitchen sinks — Connecting dimensions
EN 997, WC pans and WC suites with integral trap
EN 1717, Protection against pollution of potable water in water installations and general requirements of
devices to prevent pollution by backflow
EN 12541:2002, Sanitary tapware — Pressure flushing valves and automatic closing urinal valves PN 10
EN 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 60335-1, Safety of household and similar electrical appliances — Part 1: General requirements
(IEC 60335-1)
EN 60529, Degrees of protection provided by enclosures (IP Code)
EN IEC 60730-2-8, Automatic electrical controls for household and similar use — Part 2-8: Particular
requirements for electrically operated water valves, including mechanical requirements (IEC 60730-2-8)
EN IEC 61000-6-1, Electromagnetic compatibility (EMC) — Part 6-1: Generic standards — Immunity
standard for residential, commercial and light-industrial environments (IEC 61000-6-1)
EN 61000-6-3, Electromagnetic compatibility (EMC) — Part 6-3: Generic standards — Emission standard
for residential, commercial and light-industrial environments (IEC 61000-6-3)
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 3822-4, 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)
EN ISO 5167-1, Measurement of fluid flow by means of pressure differential devices inserted in circular
cross-section conduits running full — Part 1: General principles and requirements (ISO 5167-1)
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
cold water
water with a temperature less than 25 °C
3.2
hot water
water with a temperature between 52 °C and 75 °C
3.3
valve
electrically operated obturator for controlling the flow of water
3.4
normally open or normally closed (monostable) valve
obturation system continuously fed electrically while operated
3.5
latching (bistable) valve
obturation system electrically fed only for operating opening and closing
4 General requirements and testing
4.1 Marking
Tapware complying with this document shall be permanently and indelibly marked with the
manufacturer's name or identification mark and if applicable with volume class for urinals or WC, and if
applicable with the acoustic group and flow rate class.
4.2 Identification
The temperature control device for mixing taps shall be identified either by means of a scale and/or
symbols and/or by colours (Cold water – blue and Hot water – red).
4.3 Materials
4.3.1 Chemical and hygienic requirements
All materials coming into contact with water intended for human consumption shall present no health
risk nor cause any change of the drinking water in terms of quality, appearances, smell or taste.
4.3.2 Exposed surface conditions
Visible surfaces shall comply with the requirements of EN 248.
4.4 Functions
Tapware shall be actuated as intended by the manufacturer i.e. as described in the manufacturer’s
instructions.
Tapware shall be tested so that all functions declared in the manufacturer’s instructions are verified. The
tests shall be conducted twice. The requirements of this document are satisfied if all functions are
completed satisfactorily.
4.5 Backflow protection
Backflow protection shall be provided using appropriate devices referenced in EN 1717. Check valves
shall comply with EN 13959.
4.6 Electric characteristics and requirements
4.6.1 General
The tests described are type tests (laboratory tests), not quality control tests carried out during
manufacture.
NOTE The subclauses 4.6.2, 4.6.3 and 4.6.4 are considered as fulfilled if valid test reports in accordance with
harmonized standards under 2014/35/EU and 2014/30/EU and issued by suitable testing laboratories
(ISO/IEC 17025) are available.
4.6.2 Electrical safety
Testing for electrical safety shall be conducted as described in the relevant standard(s). A list of relevant
standards is listed below but is not necessarily exhaustive.
a) Low voltage specifications:
1) EN 60335-1.
b) EMC:
1) EN IEC 61000-6-1;
2) EN 61000-6-3.
Tapware using radars should comply with electromagnetic immunity and emission to relevant national
standards waiting for European standards.
NOTE Equipment designed to emit and receive signals within the frequency range covered in the
EN 61000 series is subject to additional requirements while appropriate European Standard do not exist.
c) Protection of the enclosure against ingress of water and dust:
The manufacturer shall declare the degree of protection of the product in accordance with EN 60529.
4.6.3 Electrical operation of solenoid valves
4.6.3.1 Marking
For the valves, marking shall include:
a) AC valves:
1) voltage;
2) power consumption (VA/W);
3) frequency (Hz).
b) DC valves:
1) voltage;
2) power consumption (W);
3) monostable or bistable.
4.6.3.2 Voltage
Solenoid valves shall be operated at less than 42 V and shall comply with the safety extra low voltage
(SELV) requirements of EN IEC 60730-2-8.
4.6.4 Electric strength and insulation resistance of the solenoid valve
Solenoid valves shall comply with EN IEC 60730-2-8, where applicable.
4.6.5 Operational safety
4.6.5.1 Test procedure for mains operated tapware
The test is conducted with cold water.
Tapware intended for Type 1 water supply systems are operated at a dynamic pressure of
(0,3 ± 0,02) MPa [(3 ± 0,2) bar].
Tapware intended for Type 2 water supply systems are operated at a dynamic pressure of
(0,02 ± 0,005) MPa [(0,2 ± 0,05) bar].
Actuate the tap.
Cut off the electrical supply.
4.6.5.2 Requirements for mains operated tapware
The tapware shall always close.
4.6.5.3 Test procedure for battery operated tapware
The test is conducted with cold water.
The principle of the test consists of verifying that when the battery loses its charge, the tapware closes.
Tapware intended for Type 1 water supply systems is operated at a dynamic pressure of (0,3 ± 0,02) MPa
[(3 bar ± 0,2) bar].
Tapware intended for Type 2 water supply systems is operated at a dynamic pressure of
(0,02 ± 0,005) MPa [(0,2 ± 0,05) bar].
During testing the battery is replaced by an adapted power supply with adjustable voltage.
Beginning at 0,9 × Un (battery nominal voltage).
a) Actuate the tap.
b) While the water is running, reduce the voltage by 0,1 V.
c) Wait until the tap closes or actuate the closure of the tap.
d) Repeat a), b), c) until the tap does not operate anymore.
Alternatively, the test can be carried out according to 4.6.5.1
4.6.5.4 Requirements for battery operated tapware
After finishing the test, the tap shall remain in closed position.
4.7 Leaktightness characteristics
4.7.1 General
The tests described are type tests (laboratory tests) and not quality control tests carried out during
manufacture.
This subclause specifies test methods for verifying the leaktightness of electronic tapware and defines
the corresponding requirements (see Table 3).
Tests are carried out with cold water.
4.7.2 Principle
The principle of the test consists of checking under cold water pressure the leaktightness of the tapware
(body, head-body unit, etc.).
4.7.3 Apparatus
A hydraulic test circuit capable of supplying the required static and dynamic pressures and of maintaining
them throughout the duration of the test.
4.7.4 Leaktightness of tapware upstream of the obturator
4.7.4.1 Procedure
Connect the tapware to the test circuit with the outlet orifice open, and generally turned downwards.
With the obturator closed, apply a static water pressure at the inlet of the tapware of (1,6 ± 0,05) MPa
[(16 ± 0,5) bar] for (60 ± 5) s.
4.7.4.2 Requirements
Throughout the duration of the test there shall be no leakage at the obturator and no leakage or seepage
through the walls.
4.7.5 Leaktightness of tapware downstream of the obturator with the obturator open
4.7.5.1 General
This test only applies to tapware (Clause 5) and urinal flushing valves (Clause 6).
4.7.5.2 Procedure
— connect the tapware to the test circuit with the outlet orifice(s) artificially closed, and generally
turned downwards;
— open the obturator(s);
— apply a static water pressure of (0,4 ± 0,02) MPa [(4 ± 0,2) bar] for (60 ± 5) s;
— test is to be repeated at a pressure of (0,02 ± 0,005) MPa [(0,2 ± 0,05) bar] for (60 ± 5) s.
4.7.5.3 Requirements
Throughout the duration of the test there shall be no leakage or seepage through the walls.
4.7.6 Leaktightness tests - Summary table
Summary of the leaktightness tests is given in Table 3.
Table 3 — Summary of leaktightness tests
Leaktightness of Outlet Pressure Duration Requirements
Upstream of (1,6 ± 0,05) MPa
Open (60 ± 5) s
obturator [(16 ± 0,5) bar]
Tapware and
(0,4 ± 0,02) MPa
urinal flushing (60 ± 5) s
[(4 ± 0,2) bar]
Downstream
valves
Closed No leakage
of obturator
(0,020 ± 0,002) MPa
(60 ± 5) s
[(0,2 ± 0,02) bar]
(1,6 ± 0,05) MPa
WC flushing valve Open (60 ± 5) s
[(16 ± 0,5) bar]
4.8 Pressure resistance characteristics - mechanical performance under pressure
4.8.1 General
This clause describes the test method that shall be carried out to verify the mechanical performance
under high pressure and specifies the test criteria.
4.8.2 Principle
The principle is to detect any deformation of the tap which may occur using cold water under pressure.
The test is carried out upstream of the obturator.
Valves submitted to the tests specified in 4.8.4 shall not be used for other tests.
4.8.3 Apparatus
The apparatus is described in 4.7.3.
4.8.4 Procedure
Connect the tapware to the test circuit.
With the obturator closed apply a static water pressure of (2,5 ± 0,05) MPa [(25 ± 0,5) bar] for (60 ± 5) s.
4.8.5 Requirements
There shall be no permanent deformation in any part of the tapware upstream of the obturator.
Seepage is permissible.
5 Requirements and testing for tapware
5.1 General
The following subclauses specify the requirements for electrically or electronically operated opening and
closing taps used with sanitary appliances installed in toilets, bathrooms and kitchens.
It is not applicable to WC/urinal flushing valves, mechanical single/combination taps and automatic shut-
off valves.
The conditions of use are given in Table 2.
5.2 Dimensional characteristics
5.2.1 General
General comment on drawings:
The design and construction of components without defined dimensions permit various design solutions
to be adopted by the manufacturer.
Special cases are covered in 5.2.10.
Supply hoses shall comply with the requirements of EN 13618.
5.2.2 Tap with visible body for horizontal surfaces
The standardized dimensions of electronic opening and closing tapware (see Figure 3 and Table 4) shall:
— facilitate their mounting and interchangeability on sanitary appliances complying with EN 31, EN 35,
and EN 695;
— provide various options for connecting to the water supply.
Figure 3 — Tap with visible body for horizontal surface
Table 4 — Dimensions
Dimension Values Comments
mm
A G 1/2 B or
G 3/4 B
B max. 29
C min. 11
D min. 90 Dimension from the centre of the outlet orifice as supplied.
a
E min. 25 Dimension from lowest point of the outlet orifice to the mounting
surface for taps intended for Type 1 supply systems and taps
intended for Type 2 supply systems – except sinks.
G min. 45 Smallest dimension of the tap base
L Value that enables the tapware to be mounted on a support between 1 mm and
18 mm in thickness and connected to the water supply.
a
Larger dimensions may be required by national regulatory provisions.
5.2.3 Taps with visible body for mounting on vertical surfaces
The standardized dimensions of electronic opening and closing tapware (see Figure 4 and Table 5) shall:
— comply with Figure 4 and Table 5 in the case of inlet dimensions;
— provide various options for connecting to the water supply.

Figure 4 — Threaded inlets of taps with visible body for mounting on vertical surfaces
Table 5 — Dimensions of threaded inlets
Dimension Values
mm
A G 1/2 B G 3/4 B
C min. 11 min. 13
5.2.4 In-line tapware with threaded inlet and outlet
5.2.4.1 Inlets and outlets aligned
The standardized dimensions of electronic opening and closing tapware (see Figure 5 and Table 6) shall:
— comply with Figure 5 and Table 6 in the case of inlet dimensions;
— provide various options for connecting to the water supply.

Figure 5 — Tapware with inlets and outlets aligned
5.2.4.2 Inlets and outlets at right angles
The standardized dimensions of electronic opening and closing tapware (see Figure 6 and Table 6) shall:
— comply with Figure 6 and Table 6 in the case of inlet dimensions;
— provide various options for connecting to the water supply.

Figure 6 — Tapware with inlets and outlets at right angles
Table 6 — Dimensions of threads
Dimension Values
mm
A (male) G 1/2 B G 3/4 B
D (female) G 1/2 G 3/4
C min. 8 min. 10
In the event of a different inlet and outlet size the nominal size is that of the inlet, and the outlet size shall
be stated (e.g. In-line tapware G 1/2 B male with female outlet G 3/4 with inlet and outlet aligned).
5.2.5 Concealed tapware for vertical surfaces
The dimensions are left to the discretion of the manufacturer.
5.2.6 Mixing valves for horizontal surface
5.2.6.1 General
The standardized dimensions of electronic opening and closing mixing valves (see Figure 7, Figure 8 and
Table 7) shall:
— facilitate mounting and interchangeability on sanitary appliances complying with EN 31, EN 35, and
EN 695;
— provide various options for connecting to the water supply.
5.2.6.2 Supply by tube
Figure 7 — Mixing valves for horizontal Figure 8 — Mixing valves for horizontal
mounting threaded inlet mounting, stud connection
Table 7 — Dimensions of mixing valves
Dimension Values (mm) Comments
D min. 90 Dimension from the centre of the outlet orifice, to the centre of axis J, with
or without flow rate regulator, as supplied
a
E min. 25 Vertical distance from the lowest point of the outlet orifice, to the
mounting surface of the tap
G min. 45 Dimension of base or flange
G max. 50 Diameter of clamping washer
J max. 33,5 The 2 supply pipes and the fixing device shall fit into a circle of diameter J.
L and L1 Value that enables the tapware to be mounted on a support from 1 mm to 18 mm thickness.
T Copper tube ∅ 10 Plain
or G 3/8 female thread or G 3/8 B male
or G 1/2 female thread or G 1/2 B male
Or:
Hose in accordance Plain end exterior ⌀ 10
with EN 13618 with:
or with G 3/8 (male or female thread)
or G 1/2 (male or female thread)
U min. 350 May be reduced down to 220 subject to agreement between the
manufacturer and the customer
V max. 32 Maximal dimension of projection to rear measured from axis of diameter J
a
Larger dimensions may be required per national regulatory provisions.
5.2.7 Mixing valves with visible body for mounting on vertical surfaces with captive nuts and
eccentric unions
The standardized dimensions of electronic opening and closing tapware (see Figure 9 and Table 8) shall:
— have inlet dimensions of mixing valves which comply with Figure 9 and Table 8;
— provide the various options for connecting to the water supply.
5.2.8 Mixing valves with opposed inlets
The standardized dimensions of electronic opening and closing tapware shall:
— have inlet dimensions of mixing valves with opposed inlets which comply with Figure 10 and Table 8
in the case of inlet dimensions of mixing valves with opposed inlets;
— provide various options for connecting to the water supply.

Figure 9 — Mixing valve with captive nuts and eccentric unions

Figure 10 — Mixer with opposed inlets
Table 8 — Dimensions
Dimensions Values Comments
mm
a
A G 1/2 B EN ISO 228-1
A G 3/4 EN ISO 228-1
A min. 9 Useful length of thread
...