1 Scope

This document specifies the requirements for the attachment of multi-turn actuators to valves.

Throughout this document, “actuator” may be understood as “actuator and/or gearbox” providing a multi-turn and/or linear output.

It 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.

NOTE 1 In this document, the term “valve” may also be understood to include “valve with an intermediate support” [see Figure 1 b)].

NOTE 2 When a combination of a multi-turn actuator and separate multi-turn/linear gearbox is coupled to form an actuator, the multi-turn attachment to the gearbox is in accordance with this document [see Figures 1 c) and 1 d)]. A combination of a multi-turn actuator with integral multi-turn/linear gearbox supplied as an actuator is in accordance with Figures 1 a) and 1 b).

Figure 1 — Interface between multi-turn/linear actuator and valve

a) Direct interface

b) Intermediate
support interface

c)   Direct interface
      (when combination
      of a multi-turn
      actuator and multi-
      turn/linear
      gearbox)

d)   Intermediate support
        interface (when
        combination of a multi-
        turn actuator and a
        multi-turn/linear
        gearbox)

Key

1	multi-turn/linear actuator	5	gearbox
2	interface (see ISO 5210)	6	interface (see ISO 5210)
3	valve	7	multi-turn actuator
4	intermediate support

BS EN ISO 5210:2017

Industrial valves. Multi-turn valve actuator attachments

Published:

31 May 2017

Withdrawn:

9 Oct 2023