Class T And Class Sm Coupling For Sucker Rods Are Manufactured As Per Api Specification 11b. For The Thread Cutting, We Are Using Cold Form Rolled By Displacing Rather Than By Removing Of Material For
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Class T and Class SM coupling for sucker rods are manufactured as per API Specification 11B. For the thread cutting, we are using cold form rolled by displacing rather than by removing of material for making the coupling thread. The thread rolling cutting results in a compressive stress at the root of the thread, giving maximum strength to the traditional weak point of cut-thread couplings.
Class T coupling is using AISI 5140 to manufacture.The coupling is coated using phosphate chemical treatment or black oxide on customer's request.For Class SM coupling, the spray metal is a specification hardening process and is applied on the base metal.
The couplings are available in full size, slim hole and over size.Also, combination couplings are available for different diameters (sub-coupling) for both Class T and Class SM couplings.
We recommend changing sucker rod couplings after three make-ups, provided the connection threads have been inspected and deemed acceptable for reuse.
| Type | Sucker Rod Coupling | |||
| Class T&SM | Nominal Size in |
Outer Diameter +0.13 in -0.25 in |
Inner diameter +0.13 in -0.25 in |
Outer Size (O.D ×Length) in |
| Full Size | 5/8 | 1-1/2 | 15/16 | 1.500×4.000 |
| 3/4 | 1-5/8 | 1-1/16 | 1.625×4.000 | |
| 7/8 | 1-13/16 | 1-3/16 | 1.812×4.000 | |
| 1 | 2-3/16 | 1-3/8 | 2.187×4.000 | |
| 1-1/8 | 2-3/8 | 1-9/16 | 2.375×4.500 | |
| Slim Hole | 5/8 | 1-1/4 | 15/16 | 1.250×4.000 |
| 3/4 | 1-1/2 | 1-1/16 | 1.500×4.000 | |
| 7/8 | 1-5/8 | 1-3/16 | 1.625×4.000 | |
| 1 | 2 | 1-3/8 | 2.000×4.000 | |
| Mechanical Property | Tensile Strength ≥655MPa | |||
业务性质
制造商/工厂
员工人数
Fewer than 5
成立年份
2014
年营业额
Approx 0.5 Billion US Dollar
国家/地区
东营, 中国
主要产品
Coupling, Torque Anchor, Centralizer, Drill Collar, Drill Pipe, Bridge Plug, Oil Packer, Sucker Rod...
法律地位
Own Lisence
付款条件
Bank wire (T/T)
