Lifting Sub

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
No.	Nominal Dia. mm	ID mm	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	73	44.5	NC26	88.9	82.9		111.1
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		71.4	NC44	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			NC50	184.2	169.5
13			NC56	196.8	185.3	300
13				203.2	190.1
14				203.2	190.1
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			NC70	254	237.3
20			NC77	279.4	260.7