Yamatake ACTIVAL VY51X2J, Specifications & Instructions

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8 AB-6465
Actuator
CAUTION
•
Although the ACTIVAL can be used in high
humidity environments (max. 95 % RH), do
not immerse the actuator in water.
•
Although the ACTIVAL can be used out-
doors, be sure not to expose the actuator to
direct sunlight.
The ACTIVAL features a single unit construction with the
actuator and valve combined together. Do not separate.
Position for Shipment
The actuator shaft is positioned at 100% (in fully open
position) for shipment. The shaft is completely turned
counterclockwise, and the pointer points at “100”. (See
Fig. 5)
Figure 5. Pointer position for shipment
Changing the Actuator Connection Position
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 groove at the top of the valve stem
is parallel (in fully open position) to the piping.) <Step
1 in Fig. 6>
3) Remove the screws connecting the yoke and the valve
body. <Step 2 in Fig. 6>
4) Change the direction of the yoke to the desired
direction. The actuator can be horizontally rotated
every 90
°
to fit into the valve mounting position
(0
°
/90
°
/180
°
/270
°
from the factory preset position).
<Step 3 in Fig. 6>
5) A thermal insulation sheet is inserted between the
yoke and the valve. If the mounting position is
changed, reinsert the thermal insulation sheet to fit
into position (1 sheet between valve body and yoke).
6) Before fixing the yoke to the valve with screws, check
that the actuator engages correctly with the stem.
(Check that the actuator pointer is in fully open
position.)
7) Mount the actuator, with its direction changed, to the
yoke. <Step 4 in Fig. 6>
IMPORTANT:
Do not change the combination of valve body,
yoke and actuator.
Figure 6. Changing the actuator mounting position
Groove
Valve stem
Lift off acutator.
Step 1
Reposition acutuator and
remount on yoke.
Step 4
Detach yoke from valve.
Step 2
Reposition yoke and
remount on valve.
Step 3
1.
2.
3.
4.