33
Maintenance, cleaning
→
Screw actuator into the valve body. Observe tightening torque
(see “Tab. 1: Actuator sizes”).
1
2
Pilot air port
Pilot air port
Fig.20:
Ports
Tightening torques valve body/nipple
DN
Tightening torque [Nm]
10/15
45 ± 3
20
50 ± 3
25
60 ± 3
32, 40
65 ± 3
50
70 ± 3
65
100 ± 3
80
120 ± 5
100
150 ± 5
Tab.12: Tighteningtorquesvalvebody/nipple
If the position of the pilot air ports is unfavourable for
installing the hoses, these can be seamlessly aligned by
rotating the actuator by 360°.
The procedure is described in chapter
.
10.3.2
Replacing the valve seat set
The actuator must be uninstalled when replacing the
valve seat.
The necessary steps are described in chapter
Replacing the control cone set”
When installing a valve seat with another DN, the identi
-
fication number of the globe control valve changes.
The valve seat set consists of
•
Valve seat
• Graphite seal
• O-ring (depending on
variant)
•
Lubricant
DANGER!
Risk of injury from discharge of pressure and escaping medium.
Dismantling a device which is under pressure is hazardous due
to a sudden discharge of pressure or escaping medium.
▶
Before disassembly, shut off the pressure and vent all lines.
Type 2301
English
Содержание 2301 Series
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