Installation, Operation and Maintenance Manual
【
H-A077-E-00
】
3-Way Ball valve Type 23 Electric actuated Type Z 15
～
50mm (½”-2”)
25
14. Method of adjusting face pressure between ball and seat
＜
Adjust surface pressure
＞
[Procedure]
1) Completely eliminate pressure in the pipe, and completely
discharge fluid from line.
2) Remove the actuator according to Procedure 2) to 6) in the
<Removal>
in "
13. Actuator removal procedure
".
3) If the shaft adapter remains on the valve stem, remove the shaft
adapter as well.
4) Attach the handle to the stem, and turn the handle to right open
the valve completely.
5) Loosen the three Union nuts with a strap wrench.
6) Remove the body part from piping system.
7) Make the valve half-open with a handle for manual valve, and
remove the remaining fluid in the valve. Then remove the handle
with the valve fully closed.
8) Remove the O-ring (A) at the Carrier.
9) Engage the upper convex part of the handle with the concave
part of the Carrier.
10) Rotate the Carrier to adjust the surface pressure.
11) Attach the handle for manual valve to the stem, and confirm that
manual operation can be performed smoothly.
＜
Assembly
＞
[Procedure]
1) Assemble in the reverse order from step 8) of
<Adjust surface
pressure>
.
* When installing the actuator on the valve, check that the opening display of the actuator matches the
direction of the stem, and then install the actuator on the valve according to the procedure of
<
Attachment
> in "
14. Actuator removal procedure
".
- If you do work with the piping installed, drain the piping of all its fluid. Some fluid will remain in
the valve. Therefore wear protective goggles and protective gloves. (You may otherwise get
injured.)
- Do not to over-tighten the Union nut. (The valve can be damaged.)
-
Do not use a pipe wrench when tightening the union nut. (The valve can be damaged.)
Necessary
items
● Strap wrench
● Safety goggles ● Protective gloves
●
Handle (For manual valve. Optional items.)
●
Base plate removing jig (Optional items. Refer to photo on
the right.)
Loosen
Counter clockwise
Tighten
Clockwise
Tighten
Loosen
