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1.The introduce of Henan Dongfanglong Machine Manufucture co.,ltd
Henan Dongfanglong is currently an emerging marketing enterprise based on OCTG casing. Located in Beijing, near Tianjin port, the largest port in north of China. With API 5CT oil casing and API 5L oil line pipe,as the main products,with production and sales integration, professional domestic and foreign trade operations, strength financial , rich experience.
2.The detail of tubing couplings
API 5CT Tubing coupling
A tubing coupling is a connection that joins two sections of tubing together, using friction or compression to seal the connections.
Adding the API 5CT tubing coupling allows a user to size the tubing to meet their needs, connect sections together, and complete an installation quickly. Some tubing couplings are designed to be attached and detached repeatedly, allowing tubing to be moved, or disconnected for different accessories to be added.
Some specifications of the API 5CT tubing coupling:
1)API 5CT Tubing coupling
2)Size: 1.9''-4 1/2''
3)Thread Type: NUE, EUE
4)Grade: J55,K55,N80,L80,P110
API 5CT Casing Coupling
The API 5CT casing couplings are short pieces of casing used to connect the individual joints. The couplings are normally made of the same grade of steel as the casing.
The casing coupling refers to casing is mainly used to be a connection that joins two sections of pipe together.
There are some specifications of the API 5CT casing coupling:
1)API 5CT casing coupling
2)Size: 4 1/2''-20''
3)Thread Type: LTC, STC, BTC
4)Grade: J55, K55, N80, L80, P110
3.The picture show of tubing coupling
The Inspections
All our products are produced and processed according to, with the materials of steel grade including J55,K55,N80,N80-1, N80-Q,L80,P110 and so on. The couplings have two types, namely NU(non-upset) and EU(external upset). By nume rically controlled lathe and import molding cutter, the processing of thread can be finished in one time,which ensures its commonality and interchangeability. 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).
PUP JOINT/CROSSOVER/TUBING/SUCKER ROD 5 1/2 6 5/8 7 5/8 BTC/LTC/STC API 5CT 10th casing pipe btc ltc connectionPIN*PIN/PIN*BOX
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Main Product:
Tubing&Casing Coupling ,
API 5CT PUP Joint,
X-over Crossover,
Down Hole Tools,
Cementing Tools,
Sucker Rod Couplings
