Table of Contents
Advertisement
c) Insertion of Flare Nut
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 R32 or conventional 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.
Table 6-2-3 Dimensions related to flare processing for R32 / R22
Outer
Nominal
Thickness
diameter
diameter
(mm)
1/4
6.4
3/8
9.5
1/2
12.7
5/8
15.9
3/4
19.0
Nominal
Outer diameter
(mm)
diameter
1/4
6.4
3/8
9.5
1/2
12.7
5/8
15.9
3/4
19.0
Nominal
Outer diameter
(mm)
diameter
1/4
6.4
3/8
9.5
1/2
12.7
5/8
15.9
3/4
19.0
Flare tool for
(mm)
R32, R22
clutch type
0.8
0 to 0.5
0.8
0 to 0.5
0.8
0 to 0.5
1.0
0 to 0.5
1.0
0 to 0.5
Table 6-2-4 Flare and flare nut dimensions for R32
Thickness
(mm)
0.8
0.8
0.8
1.0
1.0
Table 6-2-5 Flare and flare nut dimensions for R22
Thickness
(mm)
0.8
0.8
0.8
1.0
1.0
Fig. 6-2-1 Flare processing dimensions
A (mm)
Conventional flare tool
(R32)
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
1.0 to 1.5
2.0 to 2.5
Dimension (mm)
A
B
C
9.1
9.2
6.5
13.2
13.5
9.7
16.6
16.0
12.9
19.7
19.0
16.0
24.0
24.0
19.2
Dimension (mm)
A
B
C
9.1
9.2
6.5
13.0
13.5
9.7
16.2
16.0
12.9
19.4
19.0
16.0
23.3
24.0
19.2
- 25 -
ØD
A
Conventional flare tool
(R22)
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
0.5 to 1.0
1.5 to 2.0
Flare nut width
(mm)
D
13
17
20
22
23
26
25
29
28
36
Flare nut width
(mm)
D
13
17
20
22
24
20
27
23
36
34
Advertisement
Table of Contents
Troubleshooting
