EN 1111:2017
(Main)Sanitary tapware - Thermostatic mixing valves (PN 10) - General technical specification
General Information
- Abstract
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 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 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 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
- Status
- Withdrawn
- Publication Date
- 08-Aug-2017
- Withdrawal Date
- 16-Sep-2026
- Technical Committee
- CEN/TC 164 - Water supply
- Drafting Committee
- CEN/TC 164/WG 8 - Sanitary tapware
- Current Stage
- 9960 - Withdrawal effective - Withdrawal
- Start Date
- 18-Mar-2026
- Completion Date
- 17-Sep-2026
Overview
EN 1111:2017 is a CEN European standard for sanitary tapware - thermostatic mixing valves (PN 10). It specifies general construction, performance and material requirements and defines laboratory type test methods to verify mixed water temperature performance at the point of use (verified below 45 °C, with higher set points allowed). The standard applies to valves intended for domestic sanitary appliances in kitchens, bathrooms, washrooms, toilets and cloakrooms, where a single valve may supply one or a small number of outlets. It excludes valves designed to supply large numbers of outlets for institutional use.
Key Topics and Requirements
EN 1111:2017 covers the technical scope needed for safe, reliable TMV design and testing, including:
- Materials and hygiene - chemical and hygiene requirements for wetted materials and surface finishes.
- Marking and identification - mandatory marking and traceability information.
- Dimensional characteristics - inlet/outlet and mounting dimensions for compatibility.
- Backflow protection - provisions to minimise cross-contamination risk.
- Leaktightness - tests for upstream, downstream and cross-flow leakage.
- Performance testing - flow-rate determination, sensitivity and fidelity checks.
- Temperature stability - verification under cold supply failure, supply pressure and temperature variations, and provisions for temperature override stops.
- Pressure resistance - mechanical testing upstream and downstream of the obturator.
- Mechanical durability - torsional resistance of controls and endurance tests for repeated operation.
- Test scope - all described tests are type tests (laboratory verification) rather than routine production quality-control tests.
Noteworthy safety guidance: when TMVs are used to provide anti-scald protection for children, elderly and disabled persons, the mixed water temperature should be set to a suitable bathing temperature (approximately 38 °C) and young children should still be supervised.
Applications and Users
EN 1111:2017 is practical for:
- Manufacturers and product designers developing PN 10 TMVs for domestic sanitary fittings.
- Test laboratories performing type testing and independent verification.
- Plumbing engineers and specifiers selecting compliant TMVs for residential and small multi-outlet installations.
- Regulatory and conformity bodies assessing product compliance with European technical requirements.
- Installers and facility managers who need to understand required performance for anti-scald devices.
Related Standards
EN 1111:2017 is part of the CEN suite of standards for sanitary tapware and TMVs. Consult the normative references listed in EN 1111 for complementary EN standards covering detailed testing methods, materials, and installation requirements.
Keywords: EN 1111:2017, thermostatic mixing valves, TMV PN 10, sanitary tapware, anti-scald, mixed water temperature, temperature stability, CEN, type tests.
Relations
- Effective Date
- 16-Aug-2017
- Effective Date
- 19-Jan-2023
- Effective Date
- 01-Apr-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Refers
EN 13959:2004 - Anti-pollution check valves - DN 6 to DN 250 inclusive family E, type A, B, C and D - Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Get Certified
Connect with accredited certification bodies for this standard
DIBt (Deutsches Institut für Bautechnik)
German Institute for Building Technology.
DIN CERTCO
DIN Group product certification.
Aboma Certification B.V.
Specialized in construction, metal, and transport sectors.
Sponsored listings
Frequently Asked Questions
EN 1111:2017 is a standard published by the European Committee for Standardization (CEN). Its full title is "Sanitary tapware - Thermostatic mixing valves (PN 10) - General technical specification". This standard covers: 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 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 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 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
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 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 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 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
EN 1111:2017 is classified under the following ICS (International Classification for Standards) categories: 91.140.70 - Sanitary installations. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 1111:2017 has the following relationships with other standards: It is inter standard links to EN 1111:1998, EN 1111:2026, EN 1717:2025+A1:2026, EN 60584-1:2013, EN IEC 60584-3:2021, EN 13959:2004, EN ISO 3822-3:2018, EN 1113:2015, EN 246:2021, EN 1112:2008, EN 1717:2025, EN ISO 3822-4:1997, EN 16145:2012, EN 248:2002, EN 1057:2006+A1:2010. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 1111:2017 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
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
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
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
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
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
¶ 1
Dynamic
· 0,05
Temperature
Hot
¶ 90°C (55 to 65) °C Cold
¶ 25°C (5 to 20) °C 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. 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 flow rate regulators 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 SIST EN 1111:2017
= t1 +1 s s t3
= 5 s s Tc temperature of cold water supply °C Th temperature of hot water supply °C Tm temperature of mixed water °C x1 distance mm x2 distance mm Í0 Set temperature °C Íx Temperature amplitude °C SIST EN 1111:2017
G a (150 ± 1) mm 2 – hole wall mounted Supply connection, Straight unions G 1 (140 to 160) mm — with eccentric unions (extension of this range is permitted) G a (150 ± 1) mm Multi-hole combination TMV
G 2 (200 ± 3,5) mm 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 SIST EN 1111:2017
G 3/8 Plain end, male or female Copper tube(s) or flexible hose(s) U 350 mm min
Tube(s) or flexible hose(s) 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.
Key 1 flexible hose 2 plain tube Figure 1 — Inlet dimensions - Single hole TMVs SIST EN 1111:2017
Figure 2 — Multi-hole combination TMVs
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. SIST EN 1111:2017
D 3 115 mm min Wall mounted combination TMV 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. Outlet 2 Useful thread length A 5 9,5 mm min. Free length of connection a Nozzle outlets to accept flow rate regulators shall be in accordance with EN 246. NOTE Nozzle outlets which are not in accordance with EN 246 are covered by 9.5.
Figure 4 — Remote outlet SIST EN 1111:2017
Figure 5 — Single hole combination of remote outlet
Figure 6 — Bath shower combination or remote outlet 9.4 Mounting dimensions Mounting dimensions shall be as specified in Table 6, Figure 7, Figure 8 and Figure 9. SIST EN 1111:2017
H 1 24 mm max Two hole TMVs size 1/2 Fixed centres H 2 29 mm max separate outlet, side spray, 3 hole TMV size 1/2 Adjustable centres H 3 33,5 mm max Single hole TMV, 2-hole TMV size 1/2 or 3/4 3-hole TMV size 1/2
Base or flange
J 1 50 mm min 2-hole TMV size 3/4 Dimension of base or flange J 2 45 mm min Bath, Bath/Shower, Basin, Bidet, Sink TMV size 1/2 J 3 50 mm max Single and multi-hole TMV Diameter of clamping washer V 32 mm max Basin, Bidet, Sink Flange projection to rear V 1 35 mm max Bath – Two hole TMV V 3 47 mm max 3-hole TMV L Dimension which allows TMVs 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 TMV SIST EN 1111:2017
Key 1 basin; bidet; sink 2 remote spray attachment Figure 7 — Single hole TMV
Figure 8 — Two hole TMV (fixed centres) SIST EN 1111:2017
Figure 9 — Three hole TMV (adjustable centres) 9.5 Special cases TMVs 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: a) all other requirements of this European Standard are satisfied; b) secure fixing to the mounting surface is provided with all fixing holes covered; c) thread connections to the supply pipes comply with EN ISO 228-1; d) the air gap dimension E
· 25 mm or a backflow prevention device is provided in accordance with EN 1717; e) the D1/D3 dimension shall be coordinated with the appropriate sanitary appliance. The manufacturer's literature including the installation instructions supplied with the TMV shall indicate clearly that the TMV is for special applications. 9.6 Flexible hoses for outlet 2 Connecting dimensions for flexible hoses for outlet 2 shall be as specified in EN 1113. 9.7 Outlet 2 Connecting dimensions for outlet 2 shall be as specified in EN 1112. 10 Backflow protection Backflow protection shall be provided using appropriate devices referenced in EN 1717. NOTE Appropriate devices may include the use of an air gap or the specific product design. In the case of a diverter with automatic return being considered to provide backflow prevention, it shall comply with the requirements of EN 14506. Check valves shall
...