| Customization: | Available |
|---|---|
| After-sales Service: | 1 Year |
| Warranty: | 1 Year |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
|
Model
|
Drill Pipe Size and Style
|
Diameter of Elevator Bores
|
Elevator Sign
|
Max. Load
Tons(KN)
|
|
DDZ67
|
23/8EU
|
67
|
23/8EU
|
DDZ
150 (1350)
250 (2250)
350 (3150)
500(4500)
DDZ TD
350 (3150)
500(4500)
|
|
DDZ83
|
27/8EU
|
83
|
27/8EU
|
|
|
DDZ101
|
31/2EU
|
101
|
31/2EU
|
|
|
DDZ109
|
4IU
|
109
|
4IU
|
|
|
DDZ121
|
4EU
|
121
|
4EU
|
|
|
41/2IU
|
41/2IU
|
|||
|
41/2IEU
|
41/2IEU
|
|||
|
DDZ133
|
41/2EU
|
133
|
41/2EU
|
|
|
5IEU
|
5IEU
|
|||
|
DDZ148
|
51/2IEU
|
148
|
51/2IEU
|
|
|
DDZ 159
|
5 7/8IEU
|
159
|
5 7/8IEU
|
|
|
DDZ179
|
6 5/8IEU
|
179
|
6 5/8IEU
|
The design and fabrication conforms to API Spec 8A, API Spec 8C, SY/T5035 and other technical specifications, with a national
fabrication license.
The main pressure-enduring parts are made of high quality alloy steel.
Finite element analysis is adopted for strength checking and electrical logging for stress testing.
A two-time liquid quench process is used in the heat treatment technology.
Factory test and NDT are done stringently in accordance with the related standards.
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