Samson 3277-5 - Removing the Actuator from the Valve

11-2 EB 8310-1 EN
Removal
11.1 Removing the actuator
from the valve
a) Series240 Valves
1. Undo the clamps of the stem connector
(A26/27).
2. Loosen the stem connector nut (9) and
lock nut (10).
3. In the "actuator stem extends" version:
to retract the actuator stem, apply a sig-
nal pressure corresponding to approx.
50%ofthebenchrangetotheactuator.
Loosen the ring nut (A8). Disconnect the
signal pressure.
In the "actuator stem retracts" version:
undo ring nut (A8).
4. Lift the actuator off the valve.
5. Fasten the lock nut (10) and stem con-
nector nut (9) on the valve.
6. Fasten ring nut (A8) on the actuator.
2
84
10
A26/2
7
9
8
A8
A7
S
2 Bonnet/ange
8 Threaded bushing
9 Stem connector nut
10 Lock nut
84 Travel indicator
scale
A7 Actuator stem
A8 Ring nut
A26/27 Stem connector
clamps
S Signal pressure
connection
Fig.11-1: Type3271 Pneumatic
Actuator on a
Series240 Valve