IEC 60730-2-8:2025
(Main)Automatic electrical controls - Part 2-8: Particular requirements for electrically operated water valves, including mechanical requirements
Automatic electrical controls - Part 2-8: Particular requirements for electrically operated water valves, including mechanical requirements
IEC 60730-2-8:2025 applies to electrically operated water valves
• for use in, on, or in association with equipment for household appliance and similar use;
NOTE 1 Throughout this document, the word "equipment" means "appliance and equipment" and "control" means "electrically operated water valve".
EXAMPLE 1 Electrically operated water valves for appliances within the scope of IEC 60335.
• for building automation within the scope of ISO 16484 series and IEC 63044 series (HBES/BACS);
EXAMPLE 2 Independently mounted water valves, controls in smart grid systems and controls for building automation systems within the scope of ISO 16484-2.
• for equipment that is used by the public, such as equipment intended to be used in shops, offices, hospitals, farms and commercial and industrial applications;
EXAMPLE 3 Electrically operated water valves for commercial catering, heating and air-conditioning equipment.
• that are smart enabled electrically operated water valves;
EXAMPLE 4 Smart grid control, remote interfaces and controls of energy-consuming equipment including computer or smart phone.
• that are AC or DC powered electrically operated water valves with a rated voltage not exceeding 690 V AC or 600 V DC;
• used in, on, or in association with equipment that uses electricity, gas, oil, solid fuel, solar thermal energy, etc., or a combination thereof;
• utilized as part of a control system or controls which are mechanically integral with multifunctional controls having non-electrical outputs;
• using NTC or PTC thermistors and to discrete thermistors, requirements for which are contained in Annex J of Part 1;
• responsive to or controlling such characteristics as temperature, pressure, passage of time, humidity, light, electrostatic effects, flow, or liquid level, current, voltage, acceleration, or combinations thereof;
• in which actuators and valve bodies are designed to be fitted to each other.
• as well as manual controls when such are electrically or mechanically integral with automatic controls.
NOTE 2 Requirements for manually actuated mechanical switches not forming part of an automatic control are contained in IEC 61058-1-1.
This document applies to
- the inherent safety of electrically operated water valves, and
- functional safety of electrically operated water valves and safety related systems,
- controls where the performance (for example the effect of EMC phenomena) of the product can impair the overall safety and performance of the controlled system,
- the operating values, operating times, and operating sequences where such are associated with equipment safety.
This document specifies the requirements for construction, operation and testing of electrically operated water valves used in, on, or in association with an equipment.
This document contains requirements for electrical features of water valves and requirements for mechanical features of valves that affect their intended operation.
This document does not
• apply to electrically operated water valves intended exclusively for industrial process applications unless explicitly mentioned in the relevant Part 2 or the equipment standard. However, this document can be applied to evaluate automatic electrical controls intended specifically for industrial applications in cases where no relevant safety standard exists.
• apply to
- electrically operated water valves of nominal connection size above DN 50;
- electrically operated water valves for admissible nominal pressure rating above 1,6 MPa;
- food dispensers;
- detergent dispensers;
- steam valves;
• take into account the response value of an automatic action of a electrically operated water valve, if such a response value is dependent upon the method of mounting the control in the equipment. Where a response value is of significant purpose for the protection of the user, or surroundings, the value defined in the appropriate equipment standard or as determined by the manufacturer wi
Dispositifs de commande électrique automatiques - Partie 2-8: Exigences particulières pour les électrovannes hydrauliques, y compris les exigences mécaniques
L'IEC 60730-2-8:2025 s'applique aux électrovannes hydrauliques
• utilisées dans, sur ou avec des matériels pour appareil domestique et usage analogue;
NOTE 1 Dans le présent document, le terme "matériel" signifie "appareil et matériel" et "dispositif de commande" signifie "électrovanne hydraulique".
EXAMPLE 1 Les électrovannes hydrauliques pour appareils qui relèvent du domaine d'application de l'IEC 60335.
• pour l'automatisation des bâtiments qui relèvent du domaine d'application de la série ISO 16484 et de la série IEC 63044 (HBES/BACS);
EXEMPLE 2 Les vannes hydrauliques montées indépendamment, les dispositifs de commande des systèmes de réseau intelligent et les dispositifs de commande des systèmes d'automatisation des bâtiments qui relèvent du domaine d'application de l'ISO 16484-2.
• pour des matériels utilisés par le public, tels que les matériels destinés à être utilisés dans des magasins, des bureaux, des hôpitaux, des fermes et des applications commerciales et industrielles;
EXEMPLE 3 Les électrovannes hydrauliques pour les installations de restauration, de chauffage et d'air conditionné.
• qui sont des électrovannes hydrauliques activées intelligentes;
EXEMPLE 4 Les dispositifs de commande de réseau intelligent, les interfaces distantes et les dispositifs de commande de matériels utilisateurs d'énergie électrique, y compris les ordinateurs ou les mobiles multifonctions.
• qui sont des électrovannes hydrauliques à courant alternatif ou continu dont la tension assignée ne dépasse pas 690 V en courant alternatif ou 600 V en courant continu;
• qui sont utilisés dans, sur ou avec des matériels qui utilisent l'électricité, le gaz, le pétrole, des combustibles solides, l'énergie thermique solaire, etc. ou une combinaison de ces sources d'énergie;
• qui sont utilisées dans le cadre d'un système de commande ou de dispositifs de commande qui sont mécaniquement intégrés à des dispositifs de commande multifonctions comportant des sorties non électriques;
• qui utilisent des thermistances CTN ou CTP ainsi qu'aux dispositifs à thermistances discrètes, dont les exigences sont fournies à l'Annexe J de la Partie 1;
• qui réagissent à des caractéristiques telles que la température, la pression, le passage du temps, l'humidité, la lumière, les effets électrostatiques, le débit ou le niveau d'un liquide, le courant, la tension, l'accélération, ou une combinaison de ces caractéristiques, ou qui les régulent;
• dans lesquelles des actionneurs et des corps de vannes sont conçus pour être fixés l'un à l'autre;
• ainsi qu'aux dispositifs de commande manuels qui sont électriquement ou mécaniquement intégrés à des dispositifs de commande automatique.
NOTE 2 Les exigences relatives aux interrupteurs mécaniques à action manuelle qui ne font pas partie d'un dispositif de commande automatique sont contenues dans l'IEC 61058-1-1.
Le présent document s'applique:
– à la sécurité intrinsèque des électrovannes hydrauliques; et
– à la sécurité fonctionnelle des électrovannes hydrauliques et des systèmes de sécurité;
– aux dispositifs de commande pour lesquels les performances (par exemple, l'effet des phénomènes CEM) du produit peuvent compromettre la sécurité et les performances globales du système commandé;
– aux valeurs de fonctionnement, aux temps de fonctionnement et aux séquences de fonctionnement lorsque ces éléments interviennent dans la sécurité du matériel.
Le présent document spécifie les exigences relatives à la construction, au fonctionnement et aux essais des électrovannes hydrauliques utilisées dans, sur ou avec du matériel.
Le présent document établit les exigences relatives aux caractéristiques électriques des vannes hydrauliques et aux caractéristiques mécaniques des vannes qui ont une incidence sur leur fonctionnement prévu.
Le présent document:
• ne s'applique pas aux électrovannes hydrauliques destinées exclusivement à des applications de processus industriels, sauf mention particulière dans la Partie 2 ap
General Information
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Standards Content (Sample)
IEC 60730-2-8 ®
Edition 4.0 2025-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Automatic electrical controls –
Part 2-8: Particular requirements for electrically operated water valves, including
mechanical requirements
Dispositifs de commande électrique automatiques –
Partie 2-8: Exigences particulières pour les électrovannes hydrauliques, y
compris les exigences mécaniques
ICS 97.120 ISBN 978-2-8327-0427-1
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– 2 – IEC 60730-2-8:2025 © IEC 2025
CONTENTS
FOREWORD . 4
1 Scope . 7
2 Normative references . 9
3 Terms and definitions . 9
4 General . 12
5 Required technical information . 13
6 Protection against electric shock . 15
7 Provision for protective earthing . 16
8 Terminals and terminations . 16
9 Constructional requirements . 16
10 Threaded parts and connections . 17
11 Creepage distances, clearances and distances through solid insulation . 17
12 Components . 18
13 Fault assessment on electronic circuits. 18
14 Moisture and dust resistance . 18
15 Electric strength and insulation resistance . 18
16 Heating . 18
17 Manufacturing deviation and drift . 19
18 Environmental stress . 20
19 Endurance . 20
20 Mechanical strength . 21
21 Resistance to heat, fire and tracking . 24
22 Resistance to corrosion . 24
23 Electromagnetic compatibility (EMC) requirements – Emission . 24
24 Normal operation . 25
25 Electromagnetic compatibility (EMC) requirements – Immunity . 25
26 Abnormal operation tests . 25
Annex H (normative) Requirements related to functional safety . 29
Annex R (informative) National differences relevant in the United States of America . 34
Annex S (informative) National differences relevant in Japan . 35
Annex T (informative) National differences relevant in Canada . 36
Annex AA (informative) Relation between different flow coefficients . 37
Annex BB (informative) Arrangement for the measurement of transient pressures
caused by water valves . 38
Annex CC (normative) Long term pressure test for thermoplastic bodied valves. 41
Annex DD (normative) Torque test . 43
Annex EE (informative) Arrangement for the measurement of transient pressures
caused by water valves with a declared pressure of up to and including 1,0 MPa
(10 bar) . 47
Bibliography . 49
Figure BB.1 – Transient pressure measurement test rig schematic diagram . 39
Figure DD.1 – Arrangements for carrying out the torque test . 43
Figure EE.1 – Transient pressure measurement test rig for valves with a declared
pressure of up to and including 1,0 MPa (10 bar) schematic diagram . 47
Table 1 – Required technical information and methods of providing these information . 13
Table 101 – Nominal size and thread size of end-connections . 17
Table 17 – Maximum heating temperatures . 19
Table 102 – Torque test requirements for metal valves with internal threaded end-
connections . 23
Table 103 – Torque test requirements for metal valves with external threaded end-
connections . 24
Table CC.1 – Test requirements for valves intended for uses other than the control of
water for tap and shower outlets . 41
Table CC.2 – Test requirements for valves intended for the control of water for tap and
shower outlets . 42
Table DD.1 – Required torque for the test . 44
Table DD.2 – Tightening torque in newton metres (Nm) for bolts and screws for
adaptors . 46
– 4 – IEC 60730-2-8:2025 © IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
AUTOMATIC ELECTRICAL CONTROLS –
Part 2-8: Particular requirements for electrically operated water valves,
including mechanical requirements
FOREWORD
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