DIN EN ISO 5211:2024-10

This document specifies requirements for the attachment of part-turn actuators, with or without gearboxes, to industrial valves. The attachment of part-turn actuators to control valves in accordance with the requirements of this document is subject to an agreement between the supplier and the purchaser. This document specifies: - flange dimensions necessary for the attachment of part-turn actuators to industrial valves or to intermediate supports; - driving component dimensions of part-turn actuators necessary to attach them to the driven components; - reference values for torques for interfaces and for couplings having the dimensions specified in this document. The attachment of the intermediate support to the valve is out of the scope of this document. This document has been prepared by Technical Committee ISO/TC 153 "Valves", in collaboration with Technical Committee CEN/TC 69 "Industrial valves", the secretariat of which is held by AFNOR (France).The responsible German standardization committee is Working Committee NA 003-01-12 AA "Armaturenantriebe und Schnittstellen zu Antrieben" ("Valve actuators and interfaces to actuators") at DIN Standards Committee Valves (NAA).