Torque - Hydraulic Tubes And Fittings - Norwood The Grain Handler 8 Operator's Manual

Torque – Hydraulic Tubes and Fittings
Standard torque data for hydraulic tubes and fittings
Tube Nuts for 37° Flared Fittings
Tubing OD
Size
Inches mm
4 1/4 6.4
5 5/16 7.9
6 3/8 9.5
8 1/2 12.7
10 5/8 15.9
12 3/4 19.1
14 7/8 22.2
16 1 25.4
20 1-1/4 31.8
24 1-1/2 38.1
32 2 50.8
The above torque figures are recommended for plain,
cadmium or zinc plated fittings, dry or wet installations and
swivel nuts either swagged or brazed. These torques are not
recommended for tubes 12.7 mm ( 0.5 in) OD and thicker with
wall thickness of 0.889 mm ( 0.035 in) or less. The torque
is specified for 0.889 mm ( 0.035 in) wall tubes on each
application individually.
7 - SPECIFICATIONS
ft-lbs
Thread Size
Min
7/16-20 9
1/2-20 12
9/16-18 21
3/4-18 35
7/8-14 53
1-1/6-12 77
1-3/16-12 90
1-5/16-12 110
1-5/8-12 140
1-7/8-12 160
2-1/2-12 225
Nm
Max Min Max
12 12 16
15 16 20
24 29 33
40 47 54
58 72 79
82 104 111
100 122 136
120 149 163
150 190 204
175 217 237
240 305 325
7-6
O-Ring Boss Plugs, Adjustable
Fitting Lock Nuts, Swivel JIC -
37 ° Seats
ft-lbs Nm
Min Max Min
6 10 8
10 15 14
15 20 20
25 30 34
35 40 47
60 70 81
70 80 95
80 90 108
95 115 129
120 140 163
250 300 339
Max
14
20
27
41
54
95
109
122
156
190
407