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TORQUE SPECIFICATIONS
TIGHTENING O-RING
FITTINGS*
1.
Inspect
O-ring and seat for
dirt
or obvious
·1
defects.
Thread
Nut
Recommendr
Size
Size
Tum to
Tighk
2.
On angle
fittings,
back the lock nut off
(in.)
Across
(After Finger
until washer bottoms
out
at top of
groove.
Flats
Torque
Value·
Tightening)
3.
Hand tighten fitting until back-up washer
(in.)
(N.m)
(lb-ft)
(Flats) (Turns)
or washer face (if straight fitting) bottoms
3/8
1/2
8
6
2
1/3
on face and O-ring is
seated.
7/16
9/16
12
9
2
1/3
1/2
5/8
16
12
2
1/3
4.
Position angle fittings by unscrewing no
9/1
6
11/16
24
18
2
1/3
more
than one
turn.
3/4
7/8
46
34
2
1/3
7/8
1
62
46
1-1/2
1/4
5.
Tighten straight fittings to torque
shown.
1-1 /6
1-1/4
102
75
1
1/6
1-3/16
1-3/8
122
90
1
1/6
6.
Tighten
angle
fittings to
torque shown
1-5/16
1-1/2
142
105
3/4
1/8
while holding body of
fitting
with a
wrench.
1-5/8
1-7/8
190
140
3/4
1/8
1-7/8
2-1/8
217
160
1/2
1/12
•
The torque values shown
are based
on
lu-
bricated connections as in
reassembly.
TIGHTENING FLARE TYPE TUBE
FITTINGS*
1.
Check flare
and
flare seat
for defects that
Recommended
might
cause leakage.
Nut Size
Tums
to Tighten
Tube
Across
(After Finger
2.
Align
tube with fitting before tightening.
Size
Flats
Torque
Value*
Tightening)
OD
3.
Lubricate
connection and
hand tighten
swivel
nut
until
snug.
(in.)
(in.)
(N.m)
(lb-ft)
(Flats)
(Turns)
4.
To
prevent twisting
the tube(s), use two
3/16
7/16
8
6
1
1/6
wrenches.
Place one wrench
on the con-
1/4
9/16
12
9
1
1/6
nector body
and
with the
second
tighten
5/16
5/8
16
12
1
1/6
the swivel nut
to the
torque
shown.
3/8
11/16
24
18
1
1/6
1/2
7/8
46
34
1
1/6
.
The
torque
values shown
are based
on
lu-
5/8
1
62
46
1
1/6
bricated
connections as in
reassembly.
3/4
1-1/4
102
75
3/4
.
1
/8
7/8
1-3/8
122
90
3/4
1/8
14
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