12
Cutting/Flaring the Pipes
1. Make sure that you prepared the required tools. (pipe cutter, reamer, aring tool and pipe holder)
2. If you want to shorten the pipe, cut it using a pipe cutter ensuring that
the cut edge remains at 90° with the side of the pipe. There are some
examples of correctly and incorrectly cut edges below.
90° Oblique Rough Burr
3. To prevent a gas leak, remove all burrs at the cut edge of the pipe using a reamer.
4. Carry out aring work using aring tool as shown below.
Flaring tool
Clutch type Wing nut type
A
Die
Copper pipe
Yoke
Die
Copper
pipe
Flare nut
Outer diameter [D (mm)]
Depth [A (mm)]
Flare tool for R-410A
clutch type
Conventional are tool
Clutch type Wing nut type
6.35 0~0.5 1.0~1.5 1.5~2.0
9.52 0~0.5 1.0~1.5 1.5~2.0
12.70 0~0.5 1.0~1.5 1.5~2.0
15.88 0~0.5 1.0~1.5 1.5~2.0
NASA_Big Duct_AM@@@FNHDEH@_IM_03864A-05_EN.indd 12 2016-04-01 오후 5:29:41
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