ASAHI AV VALVES Installation,Operation and Maintenance Manual
Diaphragm Valves Type 14 True Union Diaphragm Valves Type14
7
Socket type
(Material : PVC,C-PVC)
●
Adhesive for hard vinyl chloride pipes
●
Strap wrench
Procedure
1)
Loosen the union nut
◯
26
with a strap wrench.
2)
Remove the union nut
◯
26
and end connector
25b
.
3)
Lead the union nut through the pipe.
4)
Clean the hub part of the end connector
25b
by wiping with a waste cloth.
5)
Apply adhesive evenly to the hub part of the end connector
25b
and the pipe spigot.
Adhesive quantity
（
guideline
）
Nom. Size
15mm
(1/2”)
20mm
(3/4”)
25mm
(1”)
32mm
(1 1/4”)
40mm
(1 1/2”)
50mm
(2”)
65mm
(2 1/2”)
80mm
(3”)
100mm
(4”)
Quantity
（ｇ）
1.0
1.3
2.0
2.4
3.5
4.8
6.9
9.0
13.0
6)
After applying adhesive, insert the pipe quickly to the end connector
25b
and leave it alone for at least 60
seconds.
7)
Wipe away overflowing adhesive.
8)
Make sure that O-ring(C)
◯
27
is mounted
9)
Tighten union nut
◯
26
on each valve until hand tight.
10)
Using a strap wrench tighten union nuts uniformly on each side approx. 90
°
- 180
°
turns, 1/4 to 1/2 turns.
11)
Using a strap wrench, screw it in by turning 90
°
- 180
°
carefully without damaging it.
Necessary items
Do not install a socket type valve where the atmospheric temperature is 5
℃
or lower.
（
The valve can be damaged.
）
Do not apply more adhesives than necessary.
（
The valve can be damaged due to solvent cracking.
）
Avoid excessive tightening. (The valve can be damaged.)
Caution
Caution
Caution
