Installation, Operation and Maintenance Manual
【
H-A077-E-00
】
3-Way Ball valve Type 23 Electric actuated Type Z 15
～
50mm (½”-2”)
11
[Procedure]
1) Clean each other's flange surface with a waste cloth.
2) Set the AV gasket between the flanges.
3) Insert washers and bolts from the pipe side, insert washers and nuts
from the valve side, then temporarily tighten by hand.
4) Set the parallelism and axial misalignment of the flange surface
to the values shown in
Table 8-1
or less. (Refer to
Fig. 8-1
.)
5) Tighten the bolts and nuts gradually with a torque wrench to the
Table 8-2
torque level in a diagonal manner. (Refer to
Fig.8-2
.)
6) In addition, tighten it more than 2 turns clockwise with
specified torque. (Refer to
Fig.8-2
.)
* When Union nut is loosen or remove, please install in the
following way.
[Procedure]
1) Make sure that the O-ring (A) is properly mounted to the body.
2) Set the End connector directly on the body without allowing the
O-ring (A) to come off.
3) Tighten Union nut on each valve until hand tight.
4) Using a strap wrench tighten Union nuts uniformly on each side
approx. 90°- 180° turns (1/4 to 1/2 turns).
Necessary
items
● Torque wrench
● Spanner wrench or box wrench
● Bolts, nuts and washers for piping
● AV gasket
●
Waste cloth
Size
Axial
misalignment
parallelism
(a-b)
15mm (
½
”)
1.0mm
0.5 mm
20mm (
¾
”)
25mm (1”)
32mm (1
¼
”)
40mm (1
½
”)
1.0 mm
0.8mm
50mm (2”)
Size
PTFE
coated
PVDF
coated
Rubber
15mm (
½
”)
17.5
{179}
17.5
{179}
8.0
{82}
20mm (
¾
”)
25mm (1”)
20.0
{204}
20.0
{204}
20.0
{204}
32mm (1
¼
”)
40mm (1
½
”)
50mm (2”)
22.5
{230}
22.5
{230}
22.5
{230}
Fig.8-1
（
Axial misalignment
）
（
Parallelism
）
b
a
Table 8-1
Parallelism and axial misalignment
Fig.8-2
Table 8-2 Recommended torque value
Unit: N-m {kgf/cm
2
}
O-ring (A)
