EB 2517 EN
33
Start-up and operation
–
Bellows actuator DN 65 to 100
Remove the crossbeam (8) from the
valve.
Unscrew the pillars (8.1).
Screw the pillars into the threaded holes
(8.3) of the actuator flange as far as they
will go.
Push the actuator with actuator stem (11)
onto the spigots of the bellows (5.1).
Fasten the pillars (8.1) with the nuts (8.2)
onto the valve flange. Observe the tight
-
ening torques specified in section 7.5.
7. Mount the control line (17) onto the valve
and actuator.
For
steam
or
liquids above 150 °C
in-
stall the compensation chamber and fill it
with the process medium. Observe the
tightening torques specified in sec
-
8.
Depending on the field of application,
allow the valve to cool down or heat up
to reach ambient temperature before
start up.
9. Slowly open the shut-off valve in the
pipeline after the valve has been in-
stalled.
6.1.2
Pipeline flushing
SAMSONWe recommend flushing the pipe
-
line with installed regulator before start-up.
Î
Unscrew the control line (see Fig. 3).
Î
Seal the valve body with G ¼ stoppers.
Î
Observe the mesh size of the upstream
strainer for the maximum particle size.
Use strainers to suit the process medium.
Î
Check the strainer for dirt each time the
pipeline is flushed and clean it, if neces
-
sary.
If the regulator malfunctions due to clogging
after flushing the pipeline, proceed as de
-
scribed in Table 9.
Summary of Contents for 2413 Series
Page 11: ...EB 2517 EN 11...
