Samson 3241, Mounting And Operating Instructions

Page: 39 / 64

EB 8012 EN 39
Maintenance
NOTICE
Risk of valve damage due to the use
of unsuitable tools.
Only use tools approved by
SAMSON (
u
AB 0100).
NOTICE
Risk of valve damage due to the use
of unsuitable lubricants.
Only use lubricants approved by
SAMSON (
u
AB 0100).
Note:
The control valve was checked by
SAMSON before it left the factory.
−
Certain test results (seat leakage
and leak test) certified by
SAMSON
lose their validity when
the valve body or actuator housing
is opened.
−
The product warranty becomes
void if maintenance or repair work
not described in these instructions
is performed without prior agree-
ment by SAMSON's After‑sales
Service department.
− Only use original spare parts by
SAMSON, which comply with the
original specifications.
7.1 Replacing the gasket
NOTICE
Risk of control valve damage due to
incorrect service or repair.
The gasket can only be replaced
when all the following conditions are
met:
− The valve size is ≤ NPS 6.
− The valve does not have a bal -
anced plug.
To replace the gasket in other valve
versions, contact SAMSON's Af -
ter‑sales Service department.
7.1.1 Standard version
1. Remove the actuator from the valve. See
associated actuator documentation.
2. Undo the body nuts (14) gradually in a
criss-cross pattern.
3. Lift the flange (2) and plug with plug
stem (5) off the body (1).
4. Remove gasket (17). Carefully clean the
sealing faces in the valve body (1) and
on the flange (2).
5. Insert a new gasket (17) into the body.
6. Place the flange (2) onto the body.
Version with V-port plug: place the
flange (2) onto the valve body, making
sure that the largest V-shaped port of the
V-port plug faces toward the valve outlet.
See section 5.1.
7. Press the plug (5) firmly into the seat (4),
while fastening down the flange (2) with
the body nuts (14). Tighten the nuts
