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6.9
Installing other makes of actuators
Other actuators can be installed only if they have an
ISO 5211 actuator connection.
If the actuator has a torque switch, like the Auma
actuators, closing torques must meet the values
given in Table 11.
If the torque is not within the adjusting range, a
mechanical or inductive switch must be used.
7
MALFUNCTIONS
The following Table 14 lists malfunctions that might ocur
after prolonged use.
8
TOOLS
In addition to standard tools, the following special tools
might facilitate some phases of the work. The tools can be
ordered from the manufacturer.
For removal of the actuator
- Extractor (ID-code table in actuator's IMO)
To remove/tighten the insert
- seat retainer too
Table 12
Seat retainer tools (Valve Series Finetrol FC)
To turn a splined stem
- hand lever
Table 13
Hand lever wrench, 4 keyways
9
ORDERING SPARE PARTS
When ordering spare parts, always include the following
information:
type code, sales order number, serial number
(stamped on a valve body)
number of the parts list, part number, name of the
part and quantity required
This information can be found from the identification plate
or documents.
NOTE:
Metso accepts no responsibility for compatibility of actua-
tors not installed by Metso.
Table 11
Closing torques
Torque, Nm
Metal seat
Soft seat
25
15
15
40
20
20
50
40
40
80
62
70
100
155
170
150
300
350
200
550
600
250
600
700
Product: ID:
DN 25 (1'')
975800
DN 40 (1½'')
975780
DN 50 (2'')
975760
DN 80 (3'')
975740
DN 100 (4'')
975720
DN 150 (6'')
975140
Product: ID:
Hole Ø120 X lenght 780 mm
H108850
Hole Ø105 X lenght 780 mm
H108848
Hole Ø95 X lenght 770 mm
H108847
Hole Ø85 X lenght 760 mm
H108845
Hole Ø75 X lenght 555 mm
H108844
Hole Ø70 X lenght 555 mm
H108843
Hole Ø65 X lenght 550 mm
H108842
Hole Ø55 X lenght 550 mm
H108841
Hole Ø50 X lenght 550 mm
H108839
Hole Ø45 X lenght 440 mm
H108838
Hole Ø40 X lenght 430 mm
H108837
Hole Ø35 X lenght 278 mm
H108836
Hole Ø30 X lenght 278 mm
H108835
Hole Ø25 X lenght 272 mm
H108833
Hole Ø20 X lenght 270 mm
H108832
Hole Ø15 X lenght 270 mm
H108828
Table 14
Malfunctions
Symptom
Possible fault
Recomended actions
Leakage through the valve
The valve is not in closed position.
Check the position by means of actuator
indicator arrow or shaft marking.
The actuator is not mounted to the correct
splines.
Check the mounting position and remount
if required.
The open and closed limits incorrectly
adjusted.
Check the adjustment.
The positioner incorrectly adjusted.
Adjust the positioner.
Internal parts, plug (3) and seat (7)
damaged.
Replace the damaged parts.
Leakage out of the valve
Gland packing (69) is leaking.
Tighten the packing. Do not use excessive
force. Replace the gland packing if required.
Leakage between body (1) and bonnet (8).
Replace the bonnet seal (66).