TIGHTENING OTHER FITTINGS
Hi Duty (Shear sleeve) Tube Fittings
After tube has been put through the nut and makes
contact against the tube shoulder in the fitting body,
turn the nut with a wrench until a small decrease in
torque is felt. This is an indication that the sleeve has
been broken off the nut. Hold the tube to prevent
turning and tighten the nut 1-1/2 turns.
Hi Seal Fittings
Put nut and sleeve over the tubing with the short
heavy end of the sleeve facing the end of tubing. Put
the tube end against the counterbore in the body of
the fitting and tighten until nut is over the last thread
on the body. The remainder of space is used
whenever the fitting is removed and installed again.
5 of 7
37
û
FLARED AND STRAIGHT THREAD O-RING FITTINGS
37
û
FLARED
O-RING
FITTING-PLUG
SWIVEL NUTS
37
û
FLARED AND STRAIGHT THREAD O-RING FITTINGS
(EXCEPT O-RING FACE SEAL FITTINGS)
NOMINAL TUBE O.D. STANDARD TORQUE
METRIC
3.18
4.76
6.35
7.94
9.52
9.52
12.70
15.88
19.05
22.22
25.40
31.75
38.10
50.80
INCH
.125
.188
.250
.312
.375
.375
.500
.625
.750
.875
1.000
1.250
1.500
2.000
(N
i
m)
5.0
± 1.5
11.0
± 1.5
16
± 2
20
± 5
25
± 5
35
± 5
50
± 7
65
± 7
100
± 10
120
± 10
135
± 15
180
± 15
225
± 15
320
± 30
(lb
i
ft)
4
± 1
8
± 1
12
± 1
15
± 4
18
± 4
26
± 4
37
± 5
48
± 5
75
± 7
90
± 7
100
± 11
135
± 11
165
± 11
240
± 22
THREAD
SIZE
inch
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1-1/16
1-3/16
1-5/16
1-5/8
1-7/8
2-1/2
IDAS004B
IDAS005B
IDAS006B
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