1. Size: 2-3/8" , 2-7/8", 3-1/2", 4", 4-1/2"
2. Standard: API 5CT, API 5B
3. Type: EUE,NUE, VAM TOP/NEW VAM replace threaded,JFE replace
threaded,Hydril replace threaded,Hunting replace threaded,EX
4. steel grade:J55,K55,N80-1,N80Q,L80-1,P110,L80-3CR,9CR,13CR
5.packing: in wooden pallets or customers' requirement
The API external-upset-end (EUE) tubing connection is widely used
because it is good, serviceable connection in most wells. The EUE
joint has a designed joint strength in tension and pressure
strenght greater than that of the pipe body and, therefore, is
considered a 100% joint efficient connection.
To improve the seal perforemance of API EUE tubing in high-pressure
service, a grooved coupling ,which accepts nonmetiallic seal rings,
is sometimes used in teh coupling (see API SPEC 5CTSR13)
Designed in accordance with API 5CT/5B and are made of good
seamless steel. EUE petroleum tubing coupling cover the outer
diameter from 77.80mm to 141.30mm, that is bigger than the outer
diameter of the non upset threaded end product.
We carry size range of 2-3/8", 2-7/8", 3-1/2", 4" and 4-1/2" in
J55, K55, N80, P110 grade. All of our couplings meet the API