AB-6385
9
For Models VY6300X0031, VY6300X0041, VY6300X0051
(DN32 to DN50 valves):
The following is the procedure for changing the position of
the actuator mounted onto the valve.
IMPORTANT:
The actuator can be horizontally rotated every
90 degrees to fit into the valve (4 mounting
positions). Make sure the positions of the
actuator and of the valve are as follows. (see Fig.
10.)
- Actuator: The indicator/manual lever points
at ‘O’ (fully open).
- Valve:
The arrow on the top of the valve
stem points at ‘O’ (fully open).
The hole on the side of the valve stem faces the
direction to which the raised part of the mounting
flange points. (See the procedure 4).)
Be sure not to mix up the combination of valve,
yoke and actuator with other combinations.
1) Change the actuator mounting position only when the
actuator is in fully open position.
2) Remove the screws connecting the actuator and the yoke.
Lift the actuator and detach it from the yoke. (Make sure
that the hole on the side of the valve stem faces the
direction to which the raised part of the mounting flange
points.) <Step 1>
3) Remove the screws connecting the yoke and the valve
body. <Step 2>
4) Change the direction of the yoke to the desired direction.
The actuator and the yoke can be horizontally rotated
every 90 degrees to fit into the valve mounting position
(0
/90
/180
/270
from the factory preset position). <Step
3>
5) A thermal insulation sheet is inserted between the yoke
and the valve. If the mounting position is changed, be sure
to reinsert the thermal insulation sheet to fit into position (1
sheet between valve body and yoke).
6) Before attaching the yoke to the valve with screws, check
that the actuator engages correctly with the stem. (Check
that the actuator position indicator is in fully open position.)
7) Mount the actuator to the yoke, with the direction changed.
<Step 4>
Reposition actuator and
remount on yoke.
Reposition yoke and
remount on valve.
Lift off the actuator.
Step 1
Detach yoke from valve.
Step 2
Step 3
Step 4
<Step 2>
Hole on the stem
Yoke
Thermal insulation sheet
Raised part of
the mounting
flange
<Step 4>
<Step 3>
<Step 1>
