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WSM U15, U15-3 Service
(4) Hose screw
Thread size
(piping screw)
Union nut section
7.8 ~ 11.8 N
1/8"
0.8 ~ 1.2 kgf
5.8 ~ 8.7 ft
24.5 ~ 29.4
1/4"
2.5 ~ 3.0
18.1 ~ 21.7
49.0 ~ 53.9
3/8"
5.0 ~ 5.5
36.2 ~ 39.8
58.8 ~ 63.7
1/2"
6.0 ~ 6.5
43.4 ~ 47.0
117.7 ~ 127.5
3/4"
12.0 ~ 13.0
86.8 ~ 94.0
137.3 ~ 147.1
1"
14.0 ~ 15.0
101.3 ~ 108.5
(5) Joint bodies
Thread size
(piping screw)
R (tapered thread)
19.6 ~ 29.4 N
1/8"
2.0 ~ 3.0 kgf
14.5 ~ 21.7 ft
36.3 ~ 44.1
1/4"
3.7 ~ 4.5
26.8 ~ 32.5
39.2 ~ 49.0
3/8"
4.0 ~ 5.0
28.9 ~ 36.2
49.0 ~ 68.6
1/2"
5.0 ~ 7.0
36.2 ~ 50.6
Tightening torque
N·m
kgf·m
ft·lbf
Taper thread
section
·
·
m
14.71 ~ 19.61 N
m
·
·
m
1.5 ~ 20 kgf
m
·
·
lbf
10.85 ~ 14.47 ft
lbf
36.3 ~ 44.1
3.7 ~ 4.5
26.8 ~ 32.5
49.0 ~ 68.6
5.0 ~ 7.0
36.2 ~ 50.6
83.4 ~ 88.3
8.5 ~ 9.0
61.5 ~ 65.1
127.5 ~ 147.1
13.0 ~ 15.0
94.0 ~ 108.5
147.1 ~ 166.7
15.0 ~ 17.0
108.5 ~ 123.0
Tightening torque
N·m
kgf·m
ft·lbf
G (straight thread)
·
m
·
-
m
·
lbf
W/O-ring
Joint Torque
58.8 ~ 78.5
6 ~ 8
43.4 ~ 57.9
W/O-ring
Joint Torque
78.5 ~ 98.1
8 ~ 10
57.9 ~ 72.3
W/O-ring
Joint Torque
117.7 ~ 137.3
12 ~ 14
86.8 ~ 101.3
Metric Size Hose
Thread size
(piping screw)
Wrench size
(reference)
×
M12
17 mm
×
0.67 in
M14
19 mm
×
M16
0.75 in
22 mm
×
M18
0.87 in
27 mm
×
M22
1.06 in
36 mm
1.42 in
41 mm
1.61 in
Spanner size
(reference)
17 mm
0.67 in
19 mm
0.75 in
23 mm
0.91 in
26 mm
1.02 in
I-S-8
Torque
N·m
kgf·m
ft·lbf
20 ~ 30
2.0 ~ 3.1
1.5
14.75 ~ 22.13
20 ~ 30
1.5
2.0 ~ 3.1
14.75 ~ 22.13
30 ~ 50
3.1 ~ 5.1
1.5
22.13 ~ 36.9
30 ~ 50
3.1 ~ 5.1
1.5
22.13 ~ 36.9
40 ~ 60
1.5
4.1 ~ 6.1
29.5 ~ 44.25
Remarks
Steel pipe (OD)
8 mm
0.31 in
12 mm
0.47 in
When in
steel pipe is
in use.
15 mm
0.59 in
16 mm
0.63 in
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