Agromatic ESR-NK Series, Installation And Operating Manual, Page: 34 / 98

5.2 Installation 5 Assembly
28 Actuators NK and VK, Position Controller ESR-NK
5.2 Installation
The actuator is installed either using a bracket or an adapter but can also be
attached directly to the valve if required.
A bracket is required in the following cases:
−
Valves for media with very high or very low temperatures
−
Bypassing thick tube insulations
If a bracket is used, the actuator is mounted to the valve by means of a cou-
pling. Various brackets and couplings (not included in the actuator scope of
delivery) are available to match different requirements.
Always observe the installation instructions of the respective supplier when
installing valves and brackets.
5.2.1 Series NK
Agromatic rotary and part-turn actuators are designed for driving industrial
valves (dampers, plug valves, etc.).
The actuator is attached directly to the valve using two screws M6, or indi-
rectly using a bracket. Also observe Fig. 5.1 in this context.
−
Always ensure that the shafts of the valve and of the actuator are flush
when installing the actuator. If there is a radial or angled offset of the
shafts, a compensating coupling (not included in the scope of delivery)
must be installed.
−
Check the smooth running of the valve and the actuator after the valve
shaft has been connected to the output shaft of the actuator.