Samson 3349, Монтаж и эксплуатация

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9-12 EB 8048-2 EN
Servicing
and a brush. Rinse it with water and ap-
ply a non-damaging mild sanitizer.
21. Push the plug (2) together with plug stem
(3) and diaphragm (24) into the valve
bonnet (21).
22. Apply a suitable lubricant to the thread
of the valve bonnet (20).
23. Screw the actuator onto the valve bonnet
(21).
24. Apply a suitable lubricant to the actuator
stem.
25. Screw the plug stem (3) together with
plug (2) and diaphragm (24) onto the
actuator stem. Observe tightening
torques.
26. Place the actuator and valve bonnet (21)
together with the plug stem (3), plug (2)
and diaphragm (24) onto the body (1).
27. Apply a suitable lubricant to the bolts
(34).
28. Tighten the screws (34) on the valve bon-
net (21) gradually in a crisscross pattern
until the valve bonnet touches the body
flange.
Greater deformation forces are required for
new diaphragms (in comparison to already
installed diaphragms). We recommend
shaping the new diaphragms beforehand us-
ing conventional hex screws:
− Tighten the conventional hex screws as de
-
scribed in step 28.
− Replace the conventional hex screws with
the existing screws (34).
− Tighten the screws (34) as described in
step 28.
29. For version with Type 3724 Positioner:
initialize the positioner (
u
EB 8395).
9.7 Checking the concentricity
of the plug to the plug stem
Before mounting the plug, the concentricity
of the plug to the plug stem must be checked.
1. Clamp the plug stem into a suitable
chuck.
2. Check the concentricity of the plug to the
plug stem. Observe the values listed in
Table 9-1 and Table 9-2.
3. If the concentricity deviates, use a suit-
able tool (e.g. plastic hammer) and hit
the plug until concentricity is achieved.
Instead of aligning the plug, the assembly
(consisting of plug stem, diaphragm and
plug) can be ordered from SAMSON.
Table 9-1: Concentricity of the plug · Ver -
sion with Type 3271/3277 Ac -
tuator
Valve size
Max. deviation in
mm
DN NPS
6 to 25 ¼ to 1 0.01
15 to 25 ½ to 1 0.01
32 to 65 1¼ to 2½ 0.04
80 and 100 3 and 4 0.05
Note
Tip