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C
I
OMPLETING THE
NSTALLATION
Cutting/Flaring the pipes
16
E-
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.
5
Check that the flaring is correct, referring to the illustrations below for
examples of incorrect flaring.
Inclined
6
Align the pipes and tighten the flare nuts first manually and then with
a torque wrench, applying the following torque.
Valve
Flare nut
N•m
Wrench(mm)
Wrench(mm)
1/4"
17
18
3/8"
22
42
1/2"
26
55
5/8"
29
65
3/4"
36
100
CAUTION
In case of welding the pipe, you must weld with nitrogen gas blowing.
Oblique
Outer diameter (D)
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")
Damaged Surface
Valve cap
Pressure port cap
N•m
N•m
Wrench(mm)
23
20
18
16~18 Allen(hex.) 5
23
20
18
16~18 Allen(hex.) 5
29
40
18
16~18 Allen(hex.) 5 13
29
40
18
16~18 Allen(hex.) 5 13
38
40
18
16~18 Allen(hex.) 5 13
Rough
Burr
Depth (A)
1.3mm
1.8mm
2.0mm
2.2mm
2.2mm
Cracked
Uneven Thickness
Valve needle
Pressure port
N•m
Wrench(mm)
Wrench(mm)
9
-
9
-
-
-
-
N•m
0.34
0.34
0.34
0.34
0.34
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