This document specifies the requirements for the attachment of multi-turn actuators to valves.
Throughout this document, “actuator” can be understood as “actuator” or “combination of actuator with gearbox” providing a multi-turn or linear output.
This document specifies:
flange dimensions necessary for the attachment of actuators to industrial valves [see Figure 1 a)] or to intermediate supports [see Figure 1 b)];
those driving component dimensions of actuators which are necessary to attach them to the driven components;
reference values for torque and thrust for flanges having the dimensions specified in this document.
BSI recommends this version of standard for organisations operating in or with the UK. The ISO edition is available here if required.