Toshiba RAV-SM562CT-E 2-1 Flare processing dimensions, Outer, A mm, Nominal, Thickness, diameter

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 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.

Ø D

A

Fig. 7-2-1 Flare processing dimensions

Table 7-2-3 Dimensions related to flare processing for R410A

		Outer					A (mm)
Nominal			Thickness
		diameter			Flare tool for		Conventional flare tool
diameter				(mm)
		(mm)
					R410A clutch type		Clutch type		Wing nut type
1/4	6.4		0.8		0 to 0.5		1.0 to 1.5			1.5 to 2.0
3/8	9.5		0.8		0 to 0.5		1.0 to 1.5			1.5 to 2.0
1/2	12.7		0.8		0 to 0.5		1.0 to 1.5			2.0 to 2.5
5/8	15.9		1.0		0 to 0.5		1.0 to 1.5			2.0 to 2.5
		Table 7-2-4 Dimensions related to flare processing for R22
		Outer					A (mm)
Nominal			Thickness
		diameter			Flare tool for		Conventional flare tool
diameter				(mm)
		(mm)
					R22 clutch type		Clutch type		Wing nut type
1/4	6.4		0.8		0 to 0.5		0.5 to 1.0			1.0 to 1.5
3/8	9.5		0.8		0 to 0.5		0.5 to 1.0			1.0 to 1.5
1/2	12.7		0.8		0 to 0.5		0.5 to 1.0			1.5 to 2.0
5/8	15.9		1.0		0 to 0.5		0.5 to 1.0			1.5 to 2.0
		Table 7-2-5 Flare and flare nut dimensions for R410A
Nominal		Outer diameter		Thickness		Dimension (mm)				Flare nut
diameter		(mm)		(mm)	A	B	C	D		width (mm)
1/4		6.4		0.8	9.1	9.2	6.5	13		17
3/8		9.5		0.8	13.2	13.5	9.7	20		22
1/2		12.7		0.8	16.6	16.0	12.9	23		26
5/8		15.9		1.0	19.7	19.0	16.0	25		29

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