Samson 3277, Монтаж и эксплуатация

Страница: 23 / 48

EB 8310-5 EN 23
Mounting and start-up
2 Valve bonnet
8 Threaded bush-
ing
9 Stem connector
nut
10 Lock nut
84 Travel indicator
scale
A7 Actuator stem
A8 Ring nut
A20 Hexagon bolt
A21 Hexagon nut
A22 Hexagon bolt
(preloading)
A23 Hexagon bolt
(preloading)
A26/27 Stem connector
clamps
Dimension x 95 mm
2
10
8
A8
A7
A26/27
9
84
x
A22
A23
A20
A21
A25
Fig. 6: Type 3271 Pneumatic Actuator (175 cm²) mounted on globe valve
The lower signal pressure range value is
the same as the minimum value of the
bench range or operating range (with
preloaded springs).
The upper signal pressure range value is
the same as the maximum value of the bench range or operating range (with
preloaded springs).
For actuator springs that are to be pre-
loaded subsequently, determine the up-
per and lower signal pressure range as
described in section 5.2.