Type SDD Manual Tongs
The type SDD manual tongs are a piece of well servicing equipment commonly adopted to make up or break connection of tubular goods, such as drill pipe and casing. These pipe tongs are applicable for drill pipes and casings with different sizes, and operators just need to change latch lug jaws and handling shoulders.
Standard for Type SDD Manual Tongs
1. API Spec 7K: Specification for Drilling and Well Servicing Equipment
2. SY/T 5035: National Standard for Petroleum and Gas Industry: Elevator Links, Elevators and Tongs
| No. of latch lug jaw | Gripping range | Max. torque (kN·m) | |
| inch | mm | ||
| 1# | 4-81/2 | 101.6-215.9 | 140 |
| 2# | 81/2-12 | 215.9-304.8 | |
| 3# | 12-15 | 304.8-381 | 105 |
| 4# | 153/4 | 400.1 | 140 |
| 5# | 16-17 | 406.4-431.8 | 85 |
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