| Customization: | Available |
|---|---|
| After-sales Service: | Techinical Support |
| Warranty: | 1 Year |
Suppliers with verified business licenses
Our precision couplings material used is milled as domestic seamless, manufactured to the highest standards of API. We ensure all testing and material certifications are conforming to industry standards and customer defined requirements and control of specialty processes:
Mechanical Test Including Tensile Strength
Impact Test
Chemical Properties Control
Size Tolerances, Od, Wall Thickness, Length and Straightness
Threads Control, Threads Quantity Per Inch, Threads Angle
Heat Treating
Material Certification
|
Descriptions and size
|
Type of Thread
|
O.D*L(mm)
|
Weight(kg)
|
|
|
Tubing Coupling
|
2-3/8
|
NUE
|
73.02*107.95
|
1.28
|
|
2-3/8
|
EUE
|
77.80*123.82
|
1.55
|
|
|
2-7/8"
|
NUE
|
88.90*130.18
|
2.34
|
|
|
2-7/8"
|
EUE
|
93.17*130.35
|
2.4
|
|
|
3-1/2"
|
NUE
|
107.95*142.88
|
3.17
|
|
|
3-1/2"
|
EUE
|
114.30*146.05
|
4.1
|
|
|
4
|
NUE
|
120.65*146.05
|
4.35
|
|
|
4"
|
EUE
|
127.00*152.40
|
4.82
|
|
|
4-1/2"
|
NUE
|
132.08*155.58
|
4.89
|
|
|
4-1/2"
|
EUE
|
141.30*158.75
|
6.05
|
|
Eastlong manufacture tubing coupling with more than 20-year production experience, we can make EUE and NUE coupling, strictly comply with API 5CT/5B standard, the annual production capacity is 1,000,000 pcs.
The EXPE coating tubing coupling has good corrosion resistance and is used in combination with the HDPE liner tubing. It is widely used in high corrosion wells. Shengji liner tubing are repair-free thereby extending performance 4.7 times. This reduces maintenance costs. All HDPE/EXPE liner tubing must pass strict quality inspection to guarantee 100% customer satisfaction. Eastlong uses an advanced defect detection machine.
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