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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