E-
12
Cutting/Flaring the pipes
CAUTION
In case of welding the pipe, you must weld with nitrogen gas blowing.
Inclined
Damaged Surface
Cracked
Uneven Thickness
Oblique
Rough
Burr
1
Make sure that you have the required tools available.
(pipe cutter, reamer, flaring tool and pipe holder).
2
If you wish to shorten the pipes, cut it with a pipe cutter, taking care to ensure
that the cut edge remains at a 90° angle with the side of the pipe. Refer to the
illustrations below for examples of edges cut correctly and incorrectly.
3
To prevent any gas from leaking out, remove all burrs at the cut edge of the
pipe, using a reamer.
4
Slide a flare nut on to the pipe and modify the flare.
Outer diameter (D)
Depth (A)
6.35 mm (1/4”)
9.52 mm (3/8”)
12.70 mm (1/2”)
15.88 mm (5/8”)
19.05 mm (3/4”)
1.3mm
1.8mm
2.0mm
2.2mm
2.2mm
5
Check that the flaring is correct, referring to the illustrations below for
examples of incorrect flaring.
6
Align the pipes and tighten the flare nuts first manually and then with
a torque wrench, applying the following torque.
Valve
Flare nut
Valve cap
Pressure port cap
Valve needle
Pressure port
Wrench(mm)
N•m
Wrench(mm)
N•m
Wrench(mm)
N•m
Wrench(mm)
N•m
Wrench(mm)
N•m
1/4"
17
18
23
20
18
16~18 Allen(hex.) 5
9
-
0.34
3/8"
22
42
23
20
18
16~18 Allen(hex.) 5
9
-
0.34
1/2"
26
55
29
40
18
16~18 Allen(hex.) 5 13
-
0.34
5/8"
29
65
29
40
18
16~18 Allen(hex.) 5 13
-
0.34
3/4"
36
100
38
40
18
16~18 Allen(hex.) 5 13
-
0.34
FJM CONSOLE_IM_29317A_E_10.16.08.indd 12
2008-11-24 15:41:33
