Double Wall Drill Pipe For Reverse Circulation Hammer Drilling
Product Description
The non-grooved double-wall drill rod is composed of an inner drill rod and an outer drill rod (called inner drill rod and outer drill rod).
The inner cavity hole of the inner drill pipe is a channel for pumping water or mud to the construction hole during operation.
In engineering operations, the outer drill rods are connected to each other by threads, and the inner drill rods are connected by male and female joints of internal and external hexagonal structures.
When the inner and outer drill rods are driven by the time-sharing power output, they rotate independently and transmit torque by shifting.
| Product Name |
Double wall drill pipe |
| Material |
steel |
| Color |
black |
| Standard |
API, ISO |
| Grade |
SUS201, SUS304, SUS316, A2-70, A2-80, A4-80, 4.8 6.8 8.8 10.9 12.9 |
| Thread |
mail joint |
| Used |
water well drilling, gas well drilling, geotherm well etc. |
Double wall drill pipe
| Type |
O.D.of the outer tube (mm) |
I.D.of the inner tube (mm) |
Outer dianeter of joint (mm) |
Type of threads |
Effective length (m) |
| WB114/65 |
114 |
65 |
156 |
41F |
6 |
| WB127/76 |
127 |
76 |
162/168 |
41/21F |
6 , 9.5 |
| DB127/76 |
127 |
76 |
184 |
51/2FH |
9.5 |
| WB140/88 |
139.7 |
88 |
184 |
51/2FH |
6,9.5 |
| WB219/130 |
219 |
130 |
240 |
Factory standard |
6,9.5 |
| WK76/32 |
76 |
32 |
78 |
3" Remet |
3 |
| WK102/41 |
102 |
41 |
103 |
4" Remet |
3 , 6 |
| WK114/52 |
114.3 |
52 |
116 |
4 1/2" Remet |
3 , 6 |
| WK114/38 |
114.3 |
38 |
114.3 |
4 1/2" Metzke |
3 , 6 |
| WK114/50 |
114.3 |
50 |
114.3 |
4 1/2" Remet |
3 , 6 |
| WP50/20 |
50 |
20 |
50 |
|
1 , 1.5 |
| WP73/35 |
73 |
35 |
73 |
|
1 , 1.5 |
| WP89/40 |
89 |
40 |
89 |
|
1 , 1.5
|
Drill pipe usage notes
1. New drill pipe should be pasted thread oil before connection
2. Make up and break at least 3 times before drilling
3. Hard bending and plastic coating can be processed according to costumer special requirement.
water well tubing
Application
It is suitable for horizontal drilling of drill pipes in various complex formations.
Suitable for drilling holes of different sizes and weights.
It is suitable for the jacking force and retreating force requirements of ground drilling rigs, and drill rods of different specifications can be selected for drilling.
Our Services:
1. Drill pipe strictly according to API ISO9001 standard.
2. If you found to quality problems within one month of the package returned.
3. All strictly according to the contract and fulfill the obligations and responsibilities.
4. 24 hours online customer service,feel free contact us.
FAQ
Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.
Q: What are your main products, and used for?
A: Our products include core barrel, casing, drill rod, drill rig and other drilling parts.They are used for mineral exploration, geological drilling,
Q: How about discount?
A: Price is based on products and order quantity.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: How does your company control the quality?
A: Quality First. In order to ensure the high quality of our products, we always strictly follow strict procedures to carefully inspect all products and raw materials.
We have obtained ISO9001 certificate* Tongshun is a professionally produced drilling tool. If you want to know more about our products, please feel free to contact us.
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