Table 5-1.2. Torque Umits for Steel Couplings on Steel Fittings
Dash
Tubing 00
Wrench
Torque
No.
Inches
Size
LB IN.
N M
-2
0.125
3/8
35-40
3.95-4.52
-3
0.187
7/16
64-100
7.34-11.30
-4
0.250
9/16
80-120
9.04-13.56
-5
0.312
518
150-200
16.95-22.60
-6
0.373
11/16
200-250
22.60-28.25
-8
0.500
03
325-400
36.72-45.19
-10
0.625
1
415-575
53.66-64.96
-12
0.750
1 l/4
600-780
74.57-88.12
I
I
I
I
-16
1
1.000
I
1 l/2
1
720-960
1
81.35-108.46
-20
1
1.250
1
1 1200-1500 1135.58-169.47
5-14.2 Change20
