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Couplings and Pup Joints (API 5CT)


Coupling are important accessories for tubing and casing pipes. Our company supplies various API 5CT/5B. casing and tubing coupling from 1.66’’to 13-3/8’’ in threads: NU, EU, STC, BTC, LTC.


Pup Joint

The casing pup joint, it used to regulate casing surface location and connect cement head.

It’s specification range from OD 114.3 – 339.7mm (4-1/2~~13-3/8), WT5.21 – 22.22mm.

Thread types: short round thread(STC), long round thread(LC), buttress thread(BC).

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