1 Scope
This document specifies the requirements for the attachment of multi-turn actuators to valves.
Throughout this document, “actuator” can be understood as “actuator and/or gearbox” providing a multi-turn and/or linear output.
It specifies:
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— flange dimensions necessary for the attachment of actuators to industrial valves [see Figure 1 a)] or to intermediate supports [see Figure 1 b)];
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— those driving component dimensions of actuators which are necessary to attach them to the driven components;
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— reference values for torque and thrust for flanges having the dimensions specified in this document.