Samson 3349, Mounting And Operating Instructions

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EB 8048-2 EN 5-5
Installation
1x large V-port:
First to release the flow when the
plug is lifted out of the seat.
2x small V-ports
Fig. 5-1: V-port plug
a) Mounting a Type 3271 or
Type 3277 Actuator
Refer to Fig. 5-2
Î
To mount the actuator, proceed as de-
scribed in the associated actuator docu-
mentation.
Î
Make sure that the dimension x from the
bottom of the actuator stem to the bottom
of the actuator case is correctly adjusted
(see Table 5-2).
Aligning the travel indicator scale
After mounting the actuator, the travel indi-
cator scale must be aligned. To do so, align
'0' on the travel indicator scale with the tip
of the stem connector clamp.
1. Move the valve to the closed position.
X
Table 5-2: Dimension x
Version
Valve size
Dimension
x in mm
DN NPS
Micro-flow
valve
6 to 25 ¼ to 1 67.5
Standard
15 to 25 ½ to 1 67.5
32 to 65 1¼ to 2½ 75
80 and
100
3 and 4 90
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).
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.