Couplings are used to connect two joints of tubing coupling or casing pipe together.
Couplings are short length of heavy wall pipe with the same threads on each end.
According to API 5CT,API 5B or customer specified standards strict inspection and test system is used before shipping including appearance inspection, dimension inspection, chemical composition inspection, performance test, strength test, tensile test, hardness test, NDT, hydrostatic test, etc.
|tubing coupling size||1.315"-4-1/2"|
|connection||EUE,NUE, and all kinds of premium connectiong and high performance theread etc.|
|surface||Phosphating,Blackening,Zinating,Nitriding,Sandblasting,Copper plating and so on|
|packing||wooden pallets,carton cases,wooden cases|
Thread processing machine
L80-13cr copper coupling
bevel performance coupling