alitec CP16A - Page 26

26 Appendix
Fitting Torque Chart
FITTING TORQUE CHART
Always tighten fittings to these values unless a different torque value is
listed for a specific service procedure.
Make sure fastener threads are clean and threads are engaged properly.
All torque values are adopted from SAE J514 and SAE J1453.
Size
SAE (JIC)
37° Flare Thread
Size
O-Ring Style
Straight Thread
Size
Seal-Lok
Thread
2
5/16 - 24
5/16 - 24
---
3
3/8 - 24
3/8 - 24
---
4
7/16 - 20
7/16 - 20
9/16 - 18
5
1/2 - 20
1/2 - 20
---
6
9/16 - 18
9/16 - 18
11/16 - 16
8
3/4 - 16
3/4 - 16
13/16 - 16
10
7/8 - 14
7/8 - 14
1 - 14
12
1-1/16 - 12
1-1/16 - 12
1-3/16 - 12
14
1-3/16 - 12
1-3/16 - 12
---
16
1-5/16 - 12
1-5/16 - 12
1-7/16 - 12
20
1-5/8 - 12
1-5/8 - 12
1-11/16 - 12
24
1-7/8 - 12
1-7/8 - 12
2 - 12
32
2-1/2 - 12
2-1/2 - 12
---
SAE
Dash
Size
TORQUE
SAE 37° Flare
O-Ring Straight Thread
Seal-Lok
Lbs.-Ft.
N-m
Lbs.-Ft.
N-m
Lbs.-Ft.
N-m
2
4
5
4
5
---
---
3
8
11
9
12
---
---
4
12
16
16
22
18
25
5
15
20
22
30
---
---
6
18
25
35
48
27
37
8
37
50
60
82
40
54
10
48
65
105
143
63
86
12
74
100
140
190
92
125
14
88
120
184
250
---
---
16
100
135
221
300
122
165
20
133
180
258
350
147
200
24
166
225
317
430
166
225
32
236
320
---
---
---
---