Samson 3241, Mounting And Operating Instructions

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30 EB 8012 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.
NOTICE
Risk of valve damage due to exces-
sively high or low tightening torques.
Observe the specified torques on
tightening control valve components.
Excessively tightened torques lead to
parts wearing out quicker. Parts that
are too loose may cause leakage.
Observe the specified tightening
torques (
u
AB 0100).
NOTICE
Risk of valve damage due to the use
of unsuitable tools.
Only use tools approved by
SAMSON (
u
AB 0100).
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.
Tip:
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.
NOTICE
Risk of damage to wall of valve body
due to incorrectly diverted jet stream.
The process medium cannot flow
unobstructed 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
damage.
Make sure the V-port plug is installed
correctly.