Carbon Steel Pipe Fitting Full Coupling
Our company, was founded in1999, with the location of the Intersection of 106 National High way and Jintian Road, East
Industries Areas of Puyang, Henan, China. We have more than14 years of experience of producing,
developing and selling oil pipes and their accessories, steel pipe fittings and other downwell tools,like pup
joints, tool joins,and other down well tools that designed and developed by our own such as: High efficient
cyclone separator, Tubing centralizer, Spiralflow sand setting device and so on. We have the ISO 9001Quality Control Certificate, API - 5CT Certificate with the NO. 5CT0837and API - 7 certificate with the NO. 7-0649.
We are the regular suppliers of Petrochina and Sinopec. From 2009, our market have expanded abroad out of China. Our products have already been used in USA, Brazil,Venezuela, India, Kazakhstan, Indonesia and so on.
We hope to cooperate with you by our high quality products and excellent service.
All our products are produced and processed according to API SPEC5B5CT, with the materials of steel grade including
J55,K55,N80,N801, N80Q,L80,P110 and so on. The couplings have five types, namely BC (buttress) ,LC(long thread),SC(short thread),NU(nonupset) and EU(external upset). By numerically controlled lathe and import molding cutter, the processing of thread can be finished in one time,which ensures its commonality and interchange ability. We have complete testing abilities, adopting a whole set of single testing apparatus of thread,including tape,pitch,tooth depth,profile and so on.Our products
have already passed the identification of the Quality Testing and Inspection Centre of Oil Pipe of CNPC
(China National Petroleum Corperation)
Below are the sizes of the API 5CT Couplings that we offer.
API TUBING COUPLINGS - EXTERNAL UPSET END (EUE)
API EUE Tubing Couplings |
Casing Size OD (inches) |
Coupling Size OD (inches) |
Threads per inch |
Length (inches) |
Weight per Coupling (lbs) |
Palletized Carton Quantity |
Palletized Carton Weight |
![]() |
1.90 |
2.500 |
10 Round |
- |
1.85 |
- |
- |
2-3/8 |
3.063 |
8 Round |
4.875 |
3.42 |
1,444 |
3942 |
|
2-7/8 |
3.668 |
8 Round |
5.500 |
5.29 |
792 |
4220 |
|
3-1/2 |
4.500 |
8 Round |
5.750 |
9.02 |
448 |
3860 |
|
4 |
5.000 |
8 Round |
- |
10.62 |
392 |
- |
|
4-1/2 |
5.563 |
8 Round |
6.500 |
13.31 |
252 |
3456 |
API TUBING COUPLINGS - NON UPSET END (NUE)
API Non-Upset Tubing Couplings |
Casing Size OD (inches) |
Coupling Size OD (inches) |
Threads per inch |
Length (inches) |
Weight per Coupling (lbs) |
Palletized Carton Quantity |
Palletized Carton Weight |
![]() |
1.90 |
2.200 |
10 Round |
3.750 |
1.85 |
- |
- |
2-3/8 |
2.875 |
10 Round |
4.500 |
2.82 |
1,512 |
4264 |
|
2-7/8 |
3.500 |
10 Round |
5.500 |
5.15 |
800 |
4120 |
|
3-1/2 |
4.250 |
10 Round |
5.625 |
8.17 |
502 |
4101 |
|
4 |
4.75 |
8 Round |
5.75 |
9.57 |
392 |
- |
|
4-1/2 |
5.200 |
8 Round |
6.500 |
10.76 |
252 |
2712
|
3.API 5CT-0837 certificate
4.Business card
Send Inquiry to This Supplier
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