–
9
–
A
ØD
d) Flare Processing
Make certain that a clamp bar and copper
pipe have been cleaned.
By means of the clamp bar, perform the flare
processing correctly.
Use either a flare tool for R410A or conven-
tional flare tool.
Flare processing dimensions differ according
to the type of flare tool.
When using a conventional flare tool, be sure
to secure “dimension A” by using a gauge for
size adjustment.
Fig. 3-2-1 Flare processing dimensions
Table 3-2-3 Dimensions related to flare processing for R410A
Table 3-2-4 Dimensions related to flare processing for R22
Table 3-2-5 Flare and flare nut dimensions for R410A
Outer
Thickness
diameter
(mm)
(mm)
1/4
6.35
0.8
3/8
9.52
0.8
1/2
12.70
0.8
5/8
15.88
1.0
A (mm)
Flare tool for R22
clutch type
0 to 0.5
0 to 0.5
0 to 0.5
0 to 0.5
Conventional flare tool
Clutch type
Wing nut type
0.5 to 1.0
1.0 to 1.5
0.5 to 1.0
1.0 to 1.5
0.5 to 1.0
1.5 to 2.0
0.5 to 1.0
1.5 to 2.0
Nominal
Outer diameter
Thickness
diameter
(in.)
(mm) (mm)
1/4
6.35 0.8
3/8
9.52
0.8
1/2
12.70
0.8
5/8
15.88
1.0
Dimension (mm)
A
B
C
D
9.1
9.2
6.5
13
13.2
13.5
9.7
20
16.0
16.6
12.9
23
19.0
19.7
16.0
25
Flare nut width
(mm)
17
22
26
29
Conventional flare tool
Clutch type
Wing nut type
1.0 to 1.5
1.5 to 2.0
1.0 to 1.5
1.5 to 2.0
1.0 to 1.5
2.0 to 2.5
1.0 to 1.5
2.0 to 2.5
Outer
Thickness
diameter
(mm)
(mm)
1/4
6.35
0.8
3/8
9.52
0.8
1/2
12.70
0.8
5/8
15.88
1.0
A (mm)
Flare tool for R410A
clutch type
0 to 0.5
0 to 0.5
0 to 0.5
0 to 0.5
FILE NO. SVM-13004
Nominal
diameter
(
in.
)
Nominal
diameter
(
in.
)
