Replacing The Packing - Samson 3256 Mounting And Operating Instructions

Servicing
Î To replace the gasket in other valve
versions, contact our after-sales service.
a) Standard version
1. Undo the body nuts (14) gradually in a
crisscross pattern.
2. Lift the bonnet (2) and plug with plug
stem (5) off the body (1).
3. Remove the gasket (17). Carefully clean
the sealing faces in the valve body (1)
and on the bonnet (2).
4. Insert a new gasket (17) into the body.
5. Place the bonnet (2) onto the body.
Version with V-port plug: place the bon-
net (2) onto the valve body, making sure
that the largest V-shaped port of the
V-port plug faces toward the valve outlet.
See 'Mounting the actuator onto the
valve' in the 'Installation' section.
6. Firmly press the plug (5) into the seat (4).
Fasten down the bonnet (2) with the
body nuts (14). Tighten the nuts gradual-
ly in a crisscross pattern. Observe tight-
ening torques.
b) Version with insulating
section or bellows seal
1. Undo the body nuts (14) gradually in a
crisscross pattern.
2. Lift the insulating section (21) or bellows
seal (22) and plug with plug stem (5) off
the body (1).
9-6
3. Remove the gasket (17). Carefully clean
the sealing faces in the valve body (1)
and on the insulating section (21) or bel-
lows seal (22).
4. Insert a new gasket (17) into the body.
5. Place the insulating section (21) or bel-
lows seal (22) onto the body.
Version with V-port plug: place the insu-
lating section (21) or bellows seal (22)
onto the valve body, making sure that
the largest V-shaped port of the V-port
plug faces toward the valve outlet. See
'Mounting the actuator onto the valve' in
the 'Installation' section.
6. Firmly press the plug (5) into the seat (4).
Fasten down the insulating section (21)
or bellows seal (22) with the body nuts
(14). Tighten the nuts gradually in a
crisscross pattern. Observe tightening
torques.
9.4.2

Replacing the packing

NOTICE
!
Risk of control valve damage due to
incorrect servicing.
Î The packing can only be replaced when
all the following conditions are met:
− The valve size is ≤DN 100.
− The valve does not have a balanced
plug.
− The valve does not have a bellows
seal.
− The standard or ADSEAL packing is
installed in the valve.
EB 8065 EN