Tubing Connections |
| Connection |
Recommended Torque |
| AF1 |
55 inch pounds |
| AF2 |
10 foot pounds initial to compress sleeve onto tube
25 foot pounds to tighten connection |
| AF4 |
30 foot pounds initial to compress sleeve onto tube
50 foot pounds to tighten connection |
| AF6 |
40 foot pounds initial to compress sleeve onto tube
60 foot pounds to tighten connection |
| LF4 |
20 foot pounds |
| LF6 |
30 foot pounds |
| LF9 |
50 foot pounds |
| LF12 |
90 foot pounds |
| LF16 |
125 foot pounds |
| HF2 |
75 inch pounds |
| HF4 |
25 foot pounds |
| HF6 |
50 foot pounds |
| HF9 |
110 foot pounds |
| HF16 |
150 foot pounds |
| XF4 |
45 foot pounds |
| XF6 |
70 foot pounds |
|
Minimum Packing Gland Torque for Valves |
| Valve Series |
Pressure Rating |
Packing Gland Torque |
15-**AF1
15-**AF2 |
15,000 psi |
15 foot pounds |
10-**AF4
10-**AF6 |
10,000 psi |
30 foot pounds |
10-**NFA
10-**NFB
10-**NFC |
10,000 psi |
35 foot pounds |
| 10-**NFD |
10,000 psi |
50 foot pounds |
20-**LF4
20-**LF6 |
20,000 psi |
35 foot pounds |
| 20-**LF9 |
20,000 psi |
70 foot pounds |
30-**HF2
30-**HF4
30-**HF6
30-**HF9 |
30,000 psi |
30 foot pounds |
60-**HF2
60-**HF4
60-**HF6
60-**HF9 |
60,000 psi |
40 foot pounds |
| 100-**XF4 |
100,000 psi |
60 foot pounds |
| 150-**XF6 |
150,000 psi |
90 foot pounds |
|
| |
Minimum Safety Head Hold Down Nut Torque |
| Pressure psi |
Torque foot pounds |
| 10,000 |
40 |
| 15,000 |
45 |
| 20,000 |
50 |
| 25,000 |
55 |
| 30,000 |
60 |
| 35,000 |
65 |
| 40,000 |
70 |
| 45,000 |
75 |
| 50,000 |
80 |
| 55,000 |
85 |
| 60,000 |
90 |
|
Minimum Recommended Bend Radius For High Pressure Tubing |
Tube Size
O.D. x I.D. |
Minimum Brend Radius |
0.250 x 0.062
0.250 x 0.083
0.250 x 0.109
0.250 x 0.125 |
1.25 in |
0.375 x 0.062
0.375 x 0.125
0.375 x 0.203
0.375 x 0.250 |
1.75 in |
0.562 x 0.188
0.562 x 0.250
0.562 x 0.312 |
2.62 in |
0.750 x 0.438
0.750 x 0.516 |
3.50 in |
1" x 0.438
1" x 0.562
1" x 0.688 |
4.62 in |
|
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