New Holland SmartTrax T8.320 Service Manual page 27

Torque values for O-Ring Face Seals (ORFS) connections
SAE
UN/UNF
dash
thread size
size
4 9/16-18
5 5/8-18
6 11/16-16
8
13/16-16
10 1-14
12 1-3/16-12
14
1-5/16-12
16 1-7/16-12
20 1-11/16-12
24 2-12
* High/Medium-pressure applications > 50 bar (725 psi).
** Low-pressure applications < 50 bar (725 psi).
*** It is recommended to use a four-bolt flange connection instead of O-Ring Face Seals (ORFS) sizes "16" and up.
Torque values for 37° flare connections - Joint Industry Council (JIC)
SAE
UN/UNF
dash
thread size
size
2 5/16-24
3 3/8-24
4
7/16-20
5 1/2-20
6 9/16-18
8
3/4-16
10 7/8-14
12 1-1/16-12
14 1-3/16-12
16 1-5/16-12
20 1-5/8-12
24 1-7/8-12
32
2-1/2-12
Torque values for 30° flare, 60° cone connections
Nominal
size (mm)
5, 6, 6.3
8, 9, 10
12, 12.5
15, 16, 19
25
31.5, 32
38
50, 51
INTRODUCTION
Metric
Inch tube
tube
OD (mm)
OD (mm)
6.35 6
7.94 8
9.52 10
12.7 12
15.88 16
19.05 20
22.23 22
25.4 25
31.75 30
38.1 38
Metric
tube
OD (mm)
–
–
6
8
10
12
16
20
–
25
30/32
38
50
British Standard Pipe
Parallel (BSPP)
thread size
G 1/4
G 3/8
G 1/2
G 3/4
G 1
G 1-1/4
G 1-1/2
G 2
48123737 21/04/2017
Hex size
(mm)
(Reference
only)
17
19
22
24
30
36
41
41
50
60
Inch tube
OD (mm)
3.18
4.76
6.35
7.94
9.52
12.7
15.88
19.05
22.22
25.4
31.75
38.1
50.8
Hex size (mm)
17
19
22
30
36
46
50
65
20
*
Swivel nut Swivel nut
torque torque
N·m (lb ft) N·m (lb ft)
± 10% ± 10%
27 (19.9) 27 (19.9)
34 (25.1) 34 (25.1)
44 (32.5) 44 (32.5)
65 (47.9) 65 (47.9)
100 (73.8) 100 (73.8)
150 (110.6) 131 (96.6)
163 (120.2) 131 (96.6)
210 (154.9) *** 131 (96.9)
280 (206.5) *** 178 (131.3)
375 (276.6) *** 210 (154.9)
Swivel nut torque
N·m (lb ft) ± 10%
8.25 (6.1)
11.5 (8.5)
15.5 (11.4)
20 (14.8)
25 (18.4)
52 (38.4)
81 (59.7)
112 (82.6)
133 (98.1)
155 (114.3)
180 (132.8)
225 (166)
348 (256.7)
Swivel nut torque
N·m (lb ft) ± 10%
25 (18.4)
34 (25.1)
64 (47.2)
132 (97.4)
196 (144.6)
225 (166)
255 (188.1)
316 (223.1)
**