Installation - Samson 3273 Mounting And Operating Instructions

5 Installation

The work described in this section is only to
be performed by personnel appropriately
qualified to carry out such tasks.
NOTICE
!
Risk of damage to control valve compo-
nents due to excessively high or low tight-
ening torques.
Observe the specified torques when tighten-
ing control valve components. Excessive
tightening torques lead to parts wearing out
more quickly. Parts that are not tightened far
enough may loosen.
Î Observe the specified tightening torques
(u AB 0100).
NOTICE
!
Risk of damage to control valve compo-
nents due to the use of unsuitable tools.
Certain tools are required to work on the
control valve.
Î Only use tools approved by SAMSON
(u AB 0100).
NOTICE
!
Risk of damage to control valve compo-
nents due to the use of unsuitable lubri-
cants.
The lubricants to be used depend on the ma-
terial of the control valve. Unsuitable lubri-
cants may corrode and damage surfaces.
Î Only use lubricants approved by
SAMSON (u AB 0100).
EB 8312-2 EN
NOTICE
!
Risk of malfunction due to different travels.
Î Make sure that the travels of the actuator,
handwheel and valve match. If in doubt,
contact our after-sales service.
NOTICE
!
Risk of control valve damage due to incor-
rect mounting.
Î Versions with fork-shaped anti-rotation
fixture at the plug stem must only be
mounted by our after-sales service or
after they have given their consent.
NOTICE
!
Risk of malfunction due to incorrect mount-
ing of the stem connector nut.
Two different stem connector nuts with vary-
ing lengths exist for mounting the handwheel
on Type 3271 Actuators with 1000 or 1400-
60 cm² actuator area.
Î For "stem extends" direction of action,
screw the long stem connector nut (G70)
from above and the short stem connector
nut (G71) from below onto the threaded
rod.
Î For "stem retracts" direction of action,
screw the short stem connector nut (G71)
from above and the long stem connector
nut (G70) from below onto the threaded
rod.
Installation
19