Samson 3251, Монтаж и эксплуатация

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30 EB 8052 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
WA 0029).
Risk of valve damage due to the use of un-
suitable tools.
Only use tools approved by SAMSON
(
u
WA 0029).
5.1 Mounting the actuator onto
the valve
Proceed as described in the actuator docu-
mentation if the valve and actuator have not
been assembled by SAMSON.
Versions with V-port plug
Each V-port plug has three V-shaped ports.
Depending on the valve size, the size of the
symmetrically arranged V-shaped ports var-
ies. The process medium in the valve flows
through the V-shaped ports as soon as the
plug is lifted out of the seat (i.e. the valve
opens).
1. Before mounting the actuator, determine
which V-shaped port is uncovered first
when the plug is lifted out of the seat.
Usually, this is the largest V‑shaped port.
2. On mounting the actuator, make sure
that the V-shaped port uncovered first
faces toward the valve outlet.
Risk of damage to the wall of the valve body
due to incorrectly diverted jet stream.
The process medium cannot flow unob
-
structed through the valve when the V‑port
plug has been installed incorrectly. This will
result in the process medium hitting the body
wall, which may lead to severe valve dam
-
age.
Make sure the V-port plug is installed
correctly.
NOTICE
!
NOTICE
!
Tip
NOTICE
!