APV DELTA SW4, Operating Manual

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UK
Single Seat and Change-over Valve
DELTA SW4
Operating manual UK - rev. 3
21
At SW4 valves, the size of the actuator can be changed.
Observe the respective line pressure, see table page 12,
to increase or decrease the actuator sizes
(Ø 74 mm, Ø 110 mm, Ø 165 mm).
13.1 Reconstruction of actuator
Disassembly
1. Disassembly is carried out as described in chapter 9.
for single seat valves and in chapter 10. for change-over valves.
2. To change the actuator size, the respective guide rod (4)
must be replaced.
Clamp the valve disc in a vice.
Attention: The valve disc must not be damaged
(use protective cheeks or cleaning rags).
Even inferior damage at the shaft rod
can lead to leakages.
3. Turn the guide rod (4) out of the shaft by means of the
centering washer (3) and a wrench SW17.
Assembly of actuator
1. Turn the respective guide rod into the shaft to the actuator.
Tightening torque 40 Nm
2. Further assembly is undertaken in reverse order.
13. Reconstruction of Actuator
DELTA SW4 - UK-3.qxp 23.04.2009
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