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Help CenterAPI Spec 7K DB Type of Manual Tongs Used for Drill Rod in Oil and Gas
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API Spec 7K DB type of manual tongs used for drill rod in Oil and Gas
The power tong is a wellhead tool for oil drilling equipment, widely applied in making-up and breaking-out in drilling well and repairing well on/offshore.Tongs are safe,reliable and easy to handle with high mobility. The tongs are designed and manufactured according to API Spec 7K.
1. Casing Power Tongs are widely used for making up or breaking out pipes or casings diameters of 4"~13 3/8" ,The tong heads are designed open type and can freely clamp and escape from the casing. The tongs can be connected to computer controlling units and can serve as ideal well mechanical tool for surface operations in oil fields.
2. Drill Pipe Power Tong :The applicable pipe OD is 3 1/2"~8", 2 7/8"~5", 2 1/2"~3 1/2", and the tong can take the long is a combination of spinning tong and torque tong instead of cathead manual tong and spinning rope for making-up and breaking-out.
3.Tubing power tong is used for quick make-up /break-out in well service operations .The tong is equipped with hydraulic back up tong and use inner curved cam to clamp. The power tong is a wellhead tool for oil drilling apparatus, widely applied in making-up and breaking-out in drilling well and repairing well on offshore and land,Tongs are safe ,reliable, and easy to handle with high mobility, The tongs are designed and manufactured according to API Spec 7K Specification for Drilling Equipment.
| Latch lug jaws | Handle O.D.mm(in) | Torque | ||
| NO. | Shaft Pin | mm | in | KN.m |
| Hole No. | ||||
| 1# | 1 | 89-114 | 3 1/2-4 1/2 | 90 |
| 114-152 | 4 1/2-6 | |||
| 2 | 127-178 | 5-7 | ||
| 3 | 152-210 | 6-8 1/4 | ||
| 2# | 1 | 203-244 | 8-9 5/8 | |
| 2 | 270-286 | 10 5/8-11 1/4 | ||
| 3# | 1 | 298-324 | 11 3/4-12 3/4 | 55 |
| 2 | 340-365 | 13 3/8-14 3/8 | ||
| 4# | 2 | 406-432 | 16-17 | |
There are B type for 3 3/8-13 3/8,SB type for 3 1/2-13 3/8, AAX type for 2 7/8-13 3/8,C type for 2 3/8-10 3/4,WWB type for 2 3/8-10 3/4 etc.
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