Flare And Joints - York JVOHQ Series Installation & Maintenance Manual

● Piping wall thickness and material
Piping specification is as shown in below table:

6.2 Flare and Joints

● Flare size
Flare as shown in the table below:
90 + 2
0 0
ØA
Ød
● Joint selection
If you use 1/2H material pipe, it cannot be flared. In this case, the joints shown in the table below can
be used.
Minimum wall thickness
of the joint (mm)
R410A
Ø 6.35
Ø 9.52
Ø 12.7
Ø 15.88
Ø 19.05
Ø 22.2
Ø 25.4
Ø 28.58
Ø 31.75
Ø 38.1
Ø 41.3
Ø 44.45
Ø 50.8
Ø 53.98
Outer
Diameter of
Piping
6.35mm
9.52mm
12.7mm
15.88mm
19.05mm
22.2mm
25.4mm
28.58mm
31.75mm
38.1mm
44.45mm
50.8mm
Diameter
0.4 ~ 0.8R
0.5 Ø 6.35
0.6 Ø 9.52
0.7 Ø 12.7
0.8 Ø 15.88
0.8 Ø 19.05
0.9
0.95
1.0
1.1
1.35
1.45
1.55
2.0
2.0
R410A
Wall
Hardness Grade
Thickness
0.8 O material
0.8 O material
0.8 O material
1 O material
1 1 / 2H material
1 1 / 2H material
1 1 / 2H material
1 1 / 2H material
1.1 1 / 2H material
1.35 1 / 2H material
1.55 1 / 2H material
2 1 / 2H material
(mm)
+0
A
-0.4
(Ød)
R410A
6.35 9.1
9.52 13.2
12.7 16.6
15.88 19.7
19.05 ( * )
Flare nut Size B
(mm)
R410A
17
22
26
29
36
22
(mm)
( * )It is impossible to perform the
flaring work with 1/2H material.
In this case, use an accessory
pipe (with a flare).
B
Flare nut