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Lifting sub is one kind of special tool used in oil, gas and exploration drilling operations. There are two kinds: A type, 18 degree shoulder and B type, 90 degree shoulder. You can select according to structure type of elevators. The connections confirm to API standards.
Specification:
No. |
Nominal Dia.
mm |
ID
mm |
Outer Connections |
Lifting End |
|
|
Connection |
OD
mm |
Chamfer
OD mm |
Tong length of action
LPB/mm |
OD
mm |
Tong length of action
LPB/mm |
|
|
1 |
73 |
31.8 |
NC23 |
79.4 |
76.2 |
250 |
111.1 |
100 |
|
|
2 |
44.5 |
NC26 |
88.9 |
82.9 |
|
|
3 |
89 |
54 |
NC31 |
104.8 |
100.4 |
127 |
|
|
4 |
50.8 |
NC35 |
120.7 |
114.7 |
|
|
5 |
68.3 |
NC38 |
127 |
121 |
|
|
6 |
127 |
71.4 |
NC44 |
152.4 |
144.5 |
168.3 |
|
|
7 |
158.8 |
149.2 |
|
|
8 |
82.6 |
NC46 |
158.8 |
150 |
|
|
9 |
165.1 |
154.8 |
|
|
10 |
171.5 |
159.5 |
|
|
11 |
NC50 |
177.8 |
164.7 |
|
|
12 |
184.2 |
169.5 |
|
|
13 |
NC56 |
196.8 |
185.3 |
300 |
|
|
203.2 |
190.1 |
|
|
14 |
|
|
15 |
95.3 |
6 5/8 REG |
209.6 |
195.7 |
|
|
16 |
NC61 |
228.6 |
212.7 |
|
|
17 |
7 5/8 REG |
241.3 |
223.8 |
|
|
18 |
NC70 |
247.7 |
232.6 |
|
|
19 |
254 |
237.3 |
|
|
20 |
NC77 |
279.4 |
260.7 |
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