Samson EB 8048-3, Монтаж и эксплуатация

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26 EB 8048-2/-3 EN
Mounting and start-up
5 Mounting and start-up
SAMSON valves are delivered ready for
use. In special cases, the valve and actuator
are delivered separately and must be assem-
bled on site. The procedure to mount and
start up the valve are described in the follow-
ing.
Risk of valve damage due to excessively high
or low tightening torques.
Observe the specified torques on tightening
control valve components. Excessively tight
-
ened torques lead to parts wearing out
quicker. Parts that are too loose may cause
leakage.
Observe the specified tightening torques
(
u
AB 0100).
Risk of valve damage due to the use of un -
suitable tools.
Only use tools approved by SAMSON
(
u
AB 0100).
Risk of contamination of the process medium
through the use of unsuitable lubricant and/
or contaminated tools and components.
− Keep the valve and the tools used free from
solvents and grease.
− Make sure that only suitable lubricants are
used.
5.1 Mounting the actuator onto
the valve
− Remove the mounted actuator before
mounting the other actuator (see associat
-
ed actuator documentation).
− Preloading the actuator springs increases
the thrust of a pneumatic actuator and re
-
duces the travel range of the actuator (see
associated actuator documentation).
5.1.1 Version with Type 3271
or Type 3277 Actuator
Refer to Fig. 10
Proceed as described in the actuator docu-
mentation if the valve and actuator have not
been assembled by SAMSON.
Î
Make sure that the dimension x from the
bottom of the actuator stem to the bottom
of the actuator case is correctly adjusted
(see Table 4).
NOTICE
!
NOTICE
!
NOTICE
!
Note