API 5CT OCTG Tubing Coupling

• After-sales Service: Video Guidance
• Type: Alloy
• Technique: Hot Rolled
• Material: Alloy Steel
• Surface Treatment: Polished
• Usage: Oil/Gas Drilling
• Section Shape: Round
• Transport Package: Wood Package
• Trademark: Puyang Zhongshi
• Production Capacity: 1000PCS/Month

Product Description

OCTG
API 5CT Tubing Coupling
 The oil tubing coupling can solve the problem of fatigue fracture in the existing coupling due to stress concentration. Oil tubing end is connected to the inside wall of the coupling in a tapered thread. The coupling body end and oil tubing are connected with same thread pitch flat thread. The coupling is not easy to produce fatigue fracture, and has good connection effect. It can prevent the accident of oil well pipe string break effectively.
The tubing coupling we provided that their grade are K55,J55,N80,L80,P110
The size designation are 1.9" 2 3/8", 2 7/8", 3 1/2", 4"

Tubing Pipe Outside Diameter(In)	Tubing Pipe Outside Diameter(mm)	Coupling Outside Diameter(mm)			Minimum Length(mm)		Diameter Of Recess(mm)		Width of Bearing Face Regular (mm)		Max Bearing Face Diameter (mm)			Mass(Kg)
		NUE	EUE		NUE	EUE	NUE	EUE	NUE	EUE	NUE	EUE		NUE	EUE
			Regular	Special Clearance								Regular with special bevel	Special Clearance		Regular	Special Clearance
1.9	48.26	55.88	63.50	--	95.25	98.42	49.86	54.76	1.59	3.18	52.07	58.34	--	0.56	0.84	--
2 3/8	60.32	73.02	77.80	73.91	107.95	123.82	61.93	67.46	4.76	3.97	66.68	71.83	69.90	1.28	1.55	1.07
2 7/8	73.02	88.90	93.17	87.88	130.18	133.35	74.63	80.16	4.76	5.56	80.98	85.88	83.24	2.34	2.40	1.55
3 1/2	88.90	107.95	114.30	106.17	142.88	146.05	90.50	96.85	4.76	6.35	98.42	104.78	100.71	3.71	4.10	2.38
4	101.60	120.65	127.00	--	146.05	152.40	103.20	109.55	4.76	6.35	111.12	117.48	--	4.35	4.82	--
4 1/2	114.30	132.08	141.30	--	155.58	158.75	115.90	122.25	4.76	6.35	123.19	130.96	--	4.89	6.05	--