Samsung AM***FN*D series - Cutting and Flaring the Pipes; Flaring Tool Usage

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A
ENGLISH
Cutting/aring the pipes
Inclined Damaged Surface Cracked Uneven Thickness
1
Make sure that you prepared the required tools.
(pipe cutter, reamer, flaring 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.
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 flaring work using flaring tool as shown below.
Flaring tool
Clutch type Wing nut type
A
Die
Copper pipe
York
Die
Copper
pipe
Flare nut
5
Check if you flared the pipe correctly. There are some examples of incorrectly
flared pipes below.
6
Align the pipes and tighten the flare nuts first manually and then with a torque
wrench, applying the following torque.
Outer diameter (D)
Depth of aring part (A)
Using aring tool
for R-410A
Using conventional aring tool
Clutch type Wing nut type
mm inch mm inch mm inch mm inch
6.35 1/4 0~0.5 0~0.02 1.0~1.5 0.04~0.06 1.5~2.0 0.06~0.08
9.52 3/8 0~0.5 0~0.02 1.0~1.5 0.04~0.06 1.5~2.0 0.06~0.08
12.70 1/2 0~0.5 0~0.02 1.0~1.5 0.04~0.06 1.5~2.0 0.06~0.08
15.88 5/8 0~0.5 0~0.02 1.0~1.5 0.04~0.06 1.5~2.0 0.06~0.08
Outer diameter Connection Torque Flare dimension
Flare shape
[mm(inch)]
mm inch N·m Ibf·ft mm inch
6.35 1/4 14~18 10.3~13.3 8.7~9.1 0.34~0.36
90° ±2°
45°
±2°
R 0.4~0.8
(0.016~0.032)
9.52 3/8 34~42 25.1~31.0 12.8~13.2 0.50~0.52
12.70 1/2 49~61 36.1~45.0 16.2~16.6 0.64~0.65
15.88 5/8 68~82 50.2~60.5 19.3~19.7 0.76~0.78
19.05 3/4 100~120 73.8~88.5 23.6~24.0 0.93~0.94
In case of needing brazing, you must work with Nitrogen gas blowing.
Caution