Samson 3277 Mounting And Operating Instructions page 23

A22
A23
A26/27
2 Valve bonnet
8 Threaded bush-
ing
9 Stem connector
nut
10 Lock nut
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
EB 8310-5 EN
A8
A7
84
A7
A8
A20
A21
Travel indicator
scale
Actuator stem
Ring nut
Hexagon bolt
Hexagon nut
Dimension x 95 mm
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.
Mounting and start-up
A20
A25
A21
84
9
10
8
2
A22 Hexagon bolt
(preloading)
A23 Hexagon bolt
(preloading)
A26/27 Stem connector
clamps
23