Two types of coupling are available which meet API Specifications: regular API Class T coupling and spray metal coupling for anti corrosion. Dimensions and tolerances conform to API Specification 11B. Quality control consists of process, random, and batch inspections
Specifications
- API Class T sucker rod coupling
- We produce the whole API sucker rod coupling line, including sucker rod coupling, subcoupling, slim hole(SH) coupling.
- Our T and SM coupling are manufactured from high quality steel pipe in accord with API standard.
- API Class SM sucker rod
- Spraying Metal coupling combines top quality steel with a cold rolled thread that increase fatigue resistance.
- API Class T sub-coupling
- 1）Material: seamless alloy steel
- 2）Standard: API Spec 11B
- 3）Grade: T
- 4）coupling diameter: 5/8-1 1/8
- API Class SM Sub-coupling
- 1）Material: seamless alloy steel
- 2）Standard: API Spec 11B
- 3）Grade: SM
- 4）coupling diameter: 5/8-1 1/8
- slim hole coupling
- 1）Material: seamless alloy steel
- 2）Standard: API Spec 11B
- 3）Grade: T SM
- 4）coupling diameter: 5/8-1 1/8
Certificate
- ISO9001:2000 API Spec 11B-0087
Main Products
sucker rod, coupling, subsurface pump, oilfield machinery,