Toshiba RAS-10YKV-E User Manual
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Table 2-2-5 Flare and flare nut dimensions for R410A
Table 2-2-3 Dimensions related to flare processing for R410A
Table 2-2-4 Dimensions related to flare processing for R22
A
ØD
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 R410A or conven-
tional flare tool.
Fig. 2-2-1 Flare processing dimensions
Flare processing dimensions differ according
to the type of flare tool. When using a con-
ventional flare tool, be sure to secure “dimen-
sion A” by using a gauge for size adjustment.
A (mm)
Conventional flare tool
Nominal
diameter
Outer
diameter
(mm)
Thickness
(mm)
Flare tool for R410A
clutch type
Clutch type
Wing nut type
1/4
6,35
0,8
0 to 0,5
1,0 to 1,5
1,5 to 2,0
3/8
9,52
0,8
0 to 0,5
1,0 to 1,5
1,5 to 2,0
1/2
12,70
0,8
0 to 0,5
1,0 to 1,5
2,0 to 2,5
5/8
15,88
1,0
0 to 0,5
1,0 to 1,5
2,0 to 2,5
A (mm)
Conventional flare tool
Nominal
diameter
Outer
diameter
(mm)
Thickness
(mm)
Flare tool for R410A
clutch type
Clutch type
Wing nut type
1/4
6,35
0,8
0 to 0,5
0,5 to 1,0
1,0 to 1,5
3/8
9,52
0,8
0 to 0,5
0,5 to 1,0
1,0 to 1,5
1/2
12,70
0,8
0 to 0,5
0,5 to 1,0
1,0 to 2,0
5/8
15,88
1,0
0 to 0,5
0,5 to 1,0
1,0 to 2,0
Dimension (mm)
Nominal
diameter
Outer
diameter
(mm)
Thickness
(mm)
A
B
C
D
Flare nut
width
(mm)
1/4
6,35
0,8
9,1
9,2
6,5
13
17
3/8
9,52
0,8
13,2
13,5
9,7
20
22
1/2
12,70
0,8
16,6
16,0
12,9
23
26
5/8
15,88
1,0
19,7
19,0
16,0
25
29