Water Well Drill Pipes, DTH Drill Pipes
DTH drill pipes play a significant role in all DTH drilling, regardless type of rock, hole depth or drill rig.The key features of a high quality DTH tube are durability, accuracy and manageability.
Main features：
1. Pipe body : cold draw seamless pipe . so the pipe have the accurate size , good centralizer.
2. Thread connector :Heat and Nitrogen treatment , so the pipe is more durable and easier to load and unload .
3. Friction welding.
Standard DTH drill pipe:
Diameter: 76mm, 89mm, 102mm, 114mm, 127mm, 140mm;
Length: 1000mm, 1500mm, 2000mm, 3000mm, 5000mm, 6000mm;
Thread: 2 3/8” API REG, 2 7/8” API REG, 3 1/2” API REG, 4 1/2” API REG, 2 3/8 API IF, 3 1/2 API IF
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