Tubing and Casing Pup Joints are machined according to the latest version of API Spec 5CT. It’s used to connect two pipes of same diameter with the same types of thread on the two ends.

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:Non-upset Thread(NUE) and External-upset Thread(EUE)

There are three types of thread widely used in Casing pup joint: Long-Round Thread(LTC), Short-Round Thread(STC),Buttress Thread(BTC)

There are two types of End thread: Pin*Pin, Pin*Box(Pin*Pin with coupling)

Remark: We can also produce Special Pup Joint of API 5CT Thread etc. Thanks for share the drawing.

API Crossover

Crossover is also kind of pup joint, used to connect two pipes of different diameter with the same or different types of thread on the two ends.

The OD, Length and thread type etc. are customized.