Agromatic NEx Series, Assembly And Operating Manual, Page: 36 / 112

5.2 Installation 5 Assembly
30 Actuators NEx, NEx-K, NEx-KA, NEx-V
5.2 Installation
The actuator has been designed to operate industrial valves (e.g. dampers,
ball valves, other valves, etc.).
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
supply) are available to match different requirements.
Always observe the assembly instructions of the respective supplier when in-
stalling valves and brackets.
5.2.1 Series NEx
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 four screws, or indirectly
using a bracket. Also be sure to follow the instructions in Fig. 5.1 to Fig. 5.3
on the following pages.
Actuator
type
Nominal thread
diameter
Property
class
Screw-in depth
min. max.
NEx1 to NEx4 A M6 8.8 10 mm 12 mm
NEx5 to NEx6
M6
M8
8.8 14 mm 16 mm
NEx8 M10 8.8 14 mm 16 mm
−
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 supply)
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.