api 5ct and 5b octg casing and tubing pipe X-Over 4-1/2 x 2-7/8 for oilfield j551

API 5CT Tubing Coupling  API 5CT Casing coupling

Tubing and casing couplings are the joining of two short length pipe, mainly used for the connection and repair of oil pipe and downhole tools

Tubing and couplings thread types : Non-upset thread(NU), External- upset thread(EU);

Casing and couplings thread types: Long-round thread(LC), Short-round thread(SC), buttress thread(BC)

Grade: K55,J55,N80-1,N80Q,L80-1,P110,etc.

API 5CT Tubing Pup joint  API 5CT casing Pup joint

Tubing and casing pup joints are machined according to the latest version of API SPEC 5CT. The steel grade includes J55,K55,N80-1,N80Q,L80-1,P110,etc. There are two types of thread widely used in tubing pup joint namely Non-upset thread(NU), External- upset thread(EU);

Casing and couplings thread types: Long-round thread(LC), Short-round thread(SC), buttress thread(BC).

Our testing and inspection method system is complete, using a whole set of thread instrument to  inspect taper, pitch, tooth, height, tooth type,etc. The products have passed the identification of china petroleum pipeline. Quality supervision ,inspection and testing center and gained the unanimous praise from the customers.

x-voer coupling or crossover

Crossover coupling any size ,length ,grade and weight is available on customer request.

 we are manufacturer of coupling, pup joint ,crossover, Down Hole Tools and Sucker Rod Couplings