NF EN ISO 5211, E29-402 (09/2023)

This document specifies specifications for the connection of part-turn actuators, with or without gearbox, to industrial valves. The connection of part-turn actuators to control valves in accordance with the specifications of this document is subject to agreement between the supplier and the buyer. This document specifies: — the dimensions of flanges required for the connection of part-turn actuators to industrial valves [see Figures 1 a) and 1 c)] or to intermediate supports [see Figures 1 b) and 1 d) ]; — the dimensions of the driving elements of the part-turn actuators necessary to connect them to the driven elements; — torque reference values for interfaces and mating elements whose dimensions are specified in this document. The connection of the intermediate support to the valve is outside the scope of this document.
(Automatic translation from French)