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6
INSTALLING THE ACTUATOR
6.1
General
Use suitable mounting parts and couplings when you
install the actuators.
6.2
Installing the M-type manual gear
operator
The mark at the end of the shaft indicates the direc-
tion of the ball flow bore. Turn the valve to the
closed position.
Lubricate the grooves of the actuator and the cou-
plings. Place the coupling on the shaft and lock it.
Place the bracket on the valve and turn the lubri-
cated screws a few times. A plate should be installed
between the valve flange mounting face or bracket
and the actuator mounting face, see actuator’s
instructions for details.
Turn the actuator to the closed position and push it care-
fully onto the valve shaft on which the coupling has
been mounted. Please note the marks on the handwheel
and the coupling.
Lubricate the actuator screws. Tighten all screws.
Adjust the ball open and closed positions with the
hexagon screws located at the side of the housing
(see Fig. 34). The stop-screw for the open position is
nearest to the handwheel on the side of the housing
and the screw for the closed position is at the oppo-
site end. The turning directions for the handwheel
are marked on the wheel.
Check the valve by turning the handwheel to the
extreme positions. The yellow arrow should indicate
the direction of the ball flow bore.
6.3
Installing the B1C-series actuator
Turn the valve to the closed position and drive actu-
ator piston to the extreme outward position.
File off any burrs and clean the shaft bore.
The line at the end of the shaft indicates the direction of
the ball flow bore.
Lubricate the actuator shaft bore. Fasten the bracket
loosely to the valve.
Slip the actuator carefully onto the valve shaft. Avoid
forcing it since this may damage the ball and seats.
We recommend mounting the actuator so that the
cylinder is pointing upwards.
Position the actuator parallel or vertical to the pipe-
line as accurately as possible. Lubricate the actuator
mounting screws and then fasten all screws.
Adjust the ball open and closed positions by means
of the actuator stop screws located at both ends (see
Fig. 35). An accurate open position can be seen in
the body flow bore. Check that the yellow arrow on
the actuator indicates the ball flow opening position.
Keep fingers out of the flow bore!
There is no need for stop screw adjustment if the actuator is
re-installed in the same valve. Drive actuator piston to the
housing end (open position). Turn the actuator by hand until
the valve is in the open position. Fasten the actuator in this
position as explained above.
Check the stop screw thread tightness. An O-ring is
used for sealing.
Check that the actuator is functioning correctly. Drive
the actuator piston to both cylinder ends and check
the ball position and its movement with respect to the
actuator (close: clockwise; open: counterclockwise).
The valve should be closed when the piston is in the
extreme outward position.
If necessary, change the position of the actuator
pointing cover to correctly indicate the valve open/
closed position.
6.4
Installing the B1J-series actuator
Spring-return actuators are used in applications where
valve opening or closing movement is needed in case the
air supply is interrupted. The B1J type is used for spring-to-
close operation; the spring pushes the piston towards the
cylinder end, the extreme outward position. In turn, the
B1JA type is used for spring-to-open operation; the spring
pushes the piston towards the housing.
Spring-return actuators are installed in a manner similar to
B1C-series actuators, taking into account the following.
6.4.1
B1J-type
Install the actuator so that the piston is in the extreme out-
ward position. The cylinder must not be pressurized and
air supply connections must be open. The valve must be
in the
closed position.
6.4.2
B1JA-type
Install the actuator so that the piston is in the cylin-
der end position at housing side. The cylinder must
not be pressurized and air supply connections must
be open. The valve must be in the
open position
.
The rest of the installation procedure is the same as in sec-
tion 6.3.
CAUTION:
Beware of ball cutting movement!
Fig. 34
Open and closed positions of the M actuator
Stop screw for
Stop screw for
CLOSED position
OPEN position
Fig. 35
Open and closed positions of the B1C/B1J actuator
Stop screw for CLOSED position
Stop screw for OPEN position
Summary of Contents for XB/XC Series
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