Samson 3349 Mounting And Operating Instructions page 39

Fig. 5-2: Dimension x for mounting Type 3271 or Type 3277 Actuator
2. Loosen the screws on the travel indicator
scale.
3. Align the travel indicator scale.
4. Fix the travel indicator scale into place
by tightening the screws.
b) Mounting Type 3379 Actua-
tor
Refer to Fig. 5-3
1. Undo the screws (34) on the valve bon-
net (21).
2. Lift the valve bonnet (21) together with
the plug (2), plug stem (3) and dia-
phragm (24) off the body (1).
3. Screw the actuator onto the valve bonnet
(21).
EB 8048-2 EN
Table 5-2: Dimension x
Valve size
Version
DN
Micro-flow
6 to 25
valve
15 to 25
32 to 65
Standard
80 and
100
4. Unscrew the plug stem (3) together with
diaphragm (24) and plug (2) from the
actuator stem.
5. Place the actuator and valve bonnet (21)
together with the plug (2), plug stem (3)
and diaphragm (24) onto the body (1).
6. Gradually tighten the screws (34) on the
valve bonnet (21) in a crisscross pattern.
Observe tightening torques.
7. For further instructions concerning
Type 3379 Actuator (pneumatic connec-
tions, alignment of the actuator etc.)
u EB 8315.
Installation
Dimension
x in mm
NPS
¼ to 1 67.5
½ to 1 67.5
1¼ to 2½ 75
3 and 4 90
5-5