Flare Processing; Flare Processing Dimensions; Dimensions Related To Flare Processing For R410A/ R32 / R22; Flare And Flare Nut Dimensions For R410A/ R32 - Toshiba RAV-GM301ATP-E Service Manual

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/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 R410A/ R32 / R22
Outer
Nominal
diameter
diameter
(mm)
1/4 6.4
3/8 9.5
1/2 12.7
5/8 15.9
Table 6-2-4 Flare and flare nut dimensions for R410A/ R32
Nominal Outer diameter
diameter (mm)
1/4
3/8
1/2 12.7
5/8 15.9
Nominal Outer diameter
diameter (mm)
1/4
3/8
1/2 12.7
5/8 15.9
3/4 19.0
Thickness
Flare tool for
(mm)
R410A, 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
Thickness
(mm)
6.4 0.8
9.5 0.8
0.8
1.0
Table 6-2-5 Flare and flare nut dimensions for R22
Thickness
(mm)
6.4 0.8
9.5 0.8
0.8
1.0
1.0
Fig. 6-2-1 Flare processing dimensions
A (mm)
Conventional flare tool
(R410A or 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
Dimension (mm)
A B
9.1 9.2
13.2 13.5
16.6 16.0 12.9
19.7 19.0 16.0
Dimension (mm)
A B
9.1 9.2
13.0 13.5
16.2 16.0 12.9
19.4 19.0 16.0
23.3 24.0 19.2
– 28 –
FILE NO. SVM-18042-1
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
Flare nut width
(mm)
C D
6.5 13 17
9.7 20
22
23 26
25 29
Flare nut width
(mm)
C D
17
6.5 13
9.7 20 22
20 24
27
23
34 36