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EB 2512 EN
33
Start-up and operation
6.1.1
Installing the regulator
Î
Refer to Fig. 3
1. Close the shut-off valves upstream and
downstream of the regulator while the
regulator is being installed.
2. Remove the protective caps from the
valve ports before installing the valve.
3. Lift the valve using suitable lifting equip-
ment to the site of installation. Observe
the flow direction through the valve. The
arrow on the valve indicates the direction
of flow.
4.
Make sure that the correct flange gaskets
are used.
5. Bolt the pipe to the valve free of stress.
6. Mount the actuator.
−
Diaphragm actuator DN 15 to 100
Insert the actuator stem (11) through the
hole in the crossbeam (8) into the travel
stop cap with cotter pin (20) and fasten
the actuator with the nuts (9). Observe
the tightening torques specified in sec
-
−
Bellows actuator DN 15 to 50
Remove the crossbeam (8) from the
valve.
Insert the actuator stem (11) into the
travel stop cap with cotter pin (20).
Align pillars (8.1) and fasten the actuator
with the nuts (8.2). Observe the
tightening torques specified in
section 7.5.
−
Bellows actuator DN 65 to 100
Remove the crossbeam (8) from the
valve.
Unscrew the pillars (8.1).
Screw the pillars (8.1) into the threaded
holes (8.3) of the actuator flange as far
as they will go.
Insert the actuator stem (11) into the
travel stop cap with cotter pin (20).
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. Lock the cotter pin (20) on the travel stop
cap.
8. Mount the control line (17) onto the valve
and actuator. Observe the tightening
torques specified in section 7.5.
−
With diaphragm actuators
For
steam
or
liquids above 150 °C
install the compensation chamber and fill
it with the process medium. Observe the
tightening torques specified in
section 7.5.
9. Slowly open the shut-off valves in the
pipeline after the valve has been in-
stalled.