Short tubing refers to a tubing shorter than the length of R1. Its length usually ranges from 0.3 m to 6 m. And 1FT-20FT commonly used abroad. The basic specifications, steel grade and service environment are the same as common tubing. Tube execution API Spec-5CT 9th edition. Thread processing execution API Spec-5B-2008.
According to the end processing form, there are EU nad NU pup joints. EU can be divided into pier thickening and thick-walled material skinning as a whole. The abbreviation of thickening is EU or UP-TBG, and the abbreviation of not thickening is NU or TBG.
Effective length of tubing short joint: 1. the length Including coupling and pin connection ;
2. the length Including coupling without pin connection;
3. the length without coupling and pin connection. Need to be sured before ordering.
Pup joint is short tubing.Compared with tubing, the length is different, the others are the same.
Pup joint is commonly divided into normal pup joint, double pin pup joints and integral EU pup joints.
Common models: 1.315","1.9","2-3/8","2-7/8","3-1/2","4", 4-1/2“
Length range: 2FT,4FT,6FT,8FT,10FT,12FT
Pup joint connection: NUE, EUE, UP, UP-TBG