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.
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.
ØD |
A |
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| Table |
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| Outer |
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Nominal | Thickness |
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diameter | Flare tool for R410A | ||||||||||
diameter | (mm) | ||||||||||
(mm) |
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1/4 | 6,35 | 0,8 |
| 0 to 0,5 | 1,0 to 1,5 | 1,5 to 2,0 | |||||
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3/8 | 9,52 | 0,8 |
| 0 to 0,5 | 1,0 to 1,5 | 1,5 to 2,0 | |||||
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1/2 | 12,70 | 0,8 |
| 0 to 0,5 | 1,0 to 1,5 | 2,0 to 2,5 | |||||
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5/8 | 15,88 | 1,0 |
| 0 to 0,5 | 1,0 to 1,5 | 2,0 to 2,5 | |||||
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Nominal | Thickness |
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diameter | Flare tool for R410A | Conventional flare tool | |||||||||
diameter | (mm) | ||||||||||
(mm) |
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1/4 | 6,35 | 0,8 |
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3/8 | 9,52 | 0,8 |
| 0 to 0,5 | 0,5 to 1,0 | 1,0 to 1,5 | |||||
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1/2 | 12,70 | 0,8 |
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5/8 | 15,88 | 1,0 |
| 0 to 0,5 | 0,5 to 1,0 | 1,0 to 2,0 | |||||
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Nominal | Outer | Thickness |
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diameter |
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| width | |||
diameter | (mm) | A |
| B |
| C |
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(mm) |
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1/4 | 6,35 | 0,8 | 9,1 |
| 9,2 |
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| 13 | 17 | |
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3/8 | 9,52 | 0,8 | 13,2 |
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| 20 | 22 | |
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1/2 | 12,70 | 0,8 | 16,6 |
| 16,0 |
| 12,9 |
| 23 | 26 | |
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5/8 | 15,88 | 1,0 | 19,7 |
| 19,0 |
| 16,0 |
| 25 | 29 | |
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– 8 –