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Product Description--API Tubing Coupling
1.Normally tubing coupling OD maximum is 4 1/2”, as the tubing pipe is applied for the drilling activities (Inside the tubing is the sucker rod to drill/pump the oil), couplings type is more various and rigorous than casing, mostly used is thicken type upset coupling (Internal upset and external upset), for short is EUE coupling, it is the most favorable in tubing connections.Another type used for tubing connections, it has the same thickness of the pipe body, called NU end (NUE)tubing or TBG.
2.Grade: K55、L80、N80、P110
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Product parameter
By carton, wooden case, wooden pallet, or as customer's requirements.
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