Metso B1C series, Руководство по эксплуатации

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6 BC 71 en 5
2 TRANSPORTATION, RECEPTION AND
STORAGE
Check the actuator and the accompanying devices for any
damage that may have occurred during transport. Store the
actuator carefully before installation, preferably indoors in a
dry place. Do not take the actuator to the intended location
and do not remove protection plugs from the pipe connec-
tions until the actuator is installed.
Lift the actuator according to Figure 4:
Horizontally from the stop screws, vertically from a lifting
eyebolt which has been fitted instead of the stop screw. Do
not use eye-bolts for double cylinder actuators. See Section
9 for weights.
Table 1
3 MOUNTING AND DEMOUNTING
3.1 Actuator gas supply
Dry compressed air or natural gas can be used in double-
acting cylinder actuators; an oil spray is not needed. Clean,
dry and oil-free compressed air must be used in cylinder
actuators equipped with a positioner. The air inlets are
shown in the dimensional drawing in Section 9. The maxi-
mum permitted supply pressure is indicated on the identifi-
cation plate. See also Section 1.4.
3.2 Mounting the actuator on the valve
Install the actuator so that the shaft of the valve or any
other device to be actuated goes into the shaft bore of the
actuator. If the bore is larger than the shaft diameter, use a
keyed shaft adapter sleeve or bushing. There are two key-
way slots in the shaft bore of the actuator at an angle of 90°.
These allow the installation position of the actuator to be
changed in relation to the valve. Metso valves have a bevel
at the end of their shafts to facilitate installation.
The installation position can be chosen freely, although Metso
recommends one in which the cylinder is vertical. This is the
best way to protect the actuator from impurities in the supply
air or damage caused by water.
When you change the position of the actuator make certain
the indicator arrow has been turned to a position corre-
sponding to that of the valve.
When necessary, lubricate the shaft bore and bushing with
Cortec VCI 369 or an equivalent anti-corrosive agent to pre-
vent it from jamming due to rust.
The actuator must not touch the pipeline, because pipeline
vibration may damage it or interfere with its operation.
In some cases, for instance when the actuator is exception-
ally large, the valve has an extended stem or when there is
lot of piping vibration, it may be advisable to support the
actuator. Contact Metso’s Automation business for more
instructions.
Fig. 4 Lifting the actuator
Lifting tool
Actuator size Tool ID.
BC 12-16 (BC 11) / BJ 8-10, UNC 5/8 H128479
BC 20 (BC 17) / BJ 12, UNC 3/4 H128480
BC 25 / BJ 16, UNC 1 H128481
BC 32 / BJ 20, UNC 1 1/4 H128482
BC 40 / BJ 25, UNC 1 1/2 H128483
BC 50 / BJ 25, UNC 1 3/3 H128484
BC 6-13 / BJ 8-10 / M12 & M16 H096901
BC 17-25 / BJ 12-16 / M20 & M24 H096902
BC 32-50 / BJ 20-32 / M30 & M42 H096903
CAUTION:
Take the weight of the actuator or valve combination
into account when handling it!
CAUTION:
Beware of the cutting movement of the valve!
Fig. 5 Ways to install the actuator