INTRODUCTION
Torque - Tightening torques for nuts and sleeves
Table below indicates standard tightening torques applicable to cases where no particular note is given.
Overtightening or under tightening of nuts and sleeves in FLARELESS JOINT may develop oil leaks through pipe
connections.
Always tighten nuts and sleeves to proper torques.
Manufac-
turer’s name
Working
pressure
Tube size OD × thickness
Opposing
flats (HEX)
Tightening torque
ø
10 mm
(
0.394 in
) ×
1.5 mm
(
0.059 in
)
19 mm
39.2 - 58.8 N·m
(
28.9 - 43.4 lb ft
)
ø
15 mm
(
0.591 in
) ×
2.0 mm
(
0.079 in
)
27 mm
106 - 130 N·m
(
78.2 - 95.9 lb ft
)
ø
18 mm
(
0.709 in
) ×
2.5 mm
(
0.098 in
)
32 mm
132 - 162 N·m
(
97.4 - 119.5 lb ft
)
ø
22 mm
(
0.866 in
) ×
3.0 mm
(
0.118 in
)
36 mm
194 - 238 N·m
(
143.1 - 175.5 lb ft
)
Nippon
A.M.C
29.4 MPa
(
4264 psi
)
ø
28 mm
(
1.102 in
) ×
4.0 mm
(
0.157 in
)
41 mm
248 - 302 N·m
(
182.9 - 222.7 lb ft
)
Ihara koatu
29.4 MPa
(
4264 psi
)
ø
35 mm
(
1.378 in
) ×
5.0 mm
(
0.197 in
)
55 mm
397 - 485 N·m
(
292.8 - 357.7 lb ft
)
Parts No.
Tube size ød
Ihara Koatu
Nippon A.M.C.
6 mm
(
0.2 in
)
ZF93S06000
–
8 mm
(
0.3 in
)
ZF93S08000
–
10 mm
(
0.4 in
)
ZF93S10000
ZA93S10000
12 mm
(
0.5 in
)
ZF93S12000
–
15 mm
(
0.6 in
)
ZF93S15000
ZA93S15000
18 mm
(
0.7 in
)
ZF93S18000
ZA93S18000
22 mm
(
0.9 in
)
ZF93S22000
ZA93S22000
28 mm
(
1.1 in
)
ZF93S28000
ZA93S28000
32 mm
(
1.3 in
)
ZF93S32000
–
35 mm
(
1.4 in
)
ZF93S35000
ZA93S35000
38 mm
(
1.5 in
)
ZF93S38000
–
TULI12EXN1144AA
1
47488366A 13/03/2013
17
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