
Connector (Brass tapered screws)
Screw size
PT
(
R
)
1/8
PT
(
R
)
1/4
PT
(
R
)
3/8
PT
(
R
)
1/12
―
:
2.0 to 14.7 N
・
m
{ 0.20 to 1.50 kgf
・
m /
18 to 130 lb
・
in }
:
4.9 to 15.7 N
・
m
{ 0.5 to 1.6 kgf
・
m / 43
to 139 lb
・
in }
:
9.8 to 16.7 N
・
m
{ 1.0 to 1.7 kgf
・
m / 87
to 148 lb
・
in }
:
9.8 to 17.7 N
・
m
{ 1.0 to 1.8 kgf
・
m / 87
to 157 lb
・
in }
Connectors (Except brass tapered screws)
Screw size
PT
(
R
)
1/8
PT
(
R
)
1/4
PT
(
R
)
3/8
PT
(
R
)
1/2
PT
(
R
)
3/4
―
:
5.9 to 11.8 N
・
m
{ 0.6 to 1.2 kgf
・
m /
52 to 104 lb
・
in }
:
14.7 to 29.4 N
・
m { 1.5 to 3.0 kgf
・
m / 11 to 22 lb
・
ft }
:
29.4 to 39.2 N
・
m { 3.0 to 4.0 kgf
・
m / 22 to 29 lb
・
ft }
:
29.4 to 58.8 N
・
m { 3.0 to 6.0 kgf
・
m / 22 to 43 lb
・
ft }
:
58.8 to 98.0 N
・
m { 6.0 to 10.0
kgf
・
m / 43 to 72
lb
・
ft }
Note
:
・
The tightening torque for connectors (except
brass tapered screws) is only applied when the
mating side is not made of aluminum.
Note
:
・
For the elbow-type connector, tighten it with
the minimum torque shown above and then
tighten it further until the angle matches.
・
Apply Loctite 575 to the threaded portion and
tighten. Completely dry and then let air in after
tightening.
・
Do not use seal tape, etc.
14A-18 Service Information Guide (All)