Xian Kingwell Oilfield Machinery Co.,Ltd

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Coupling

Product Number: KINGWELL couplings are manufactured to meet the requirements of API 5CT and API 5CT certifications.

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KINGWEL Couplings Features & Benefits:

Kingwell offers a wide variety Couplings for Casing, Tubings and Line Pipes. The Tubing / Casing and Line Pipe Couplings are manufactured to meet the requirements of API 5CT and API 5L certifications respectively.

KINGWEL Couplings Techincal Data:

API COUPLINGS FOR CASINGS	API COUPLINGS FOR TUBING
SHORT THREAD -CASING COUPLINGS (STC)	EXTERNAL UPSET END - TUBING COUPLINGS (EUE)
LONG THREAD - CASING COUPLINGS (LTC)	NON UPSET END TUBING - COUPLINGS (NUE)
BUTTRESS THREAD - CASING COUPLINGS (BTC)
4 1/2” 5” 5 1/2” 6 5/8” 7” 7 5/8’’ 7 3/4” 8 5/8” 9 5/8” 10 3/4” 11 3/4” 13 3/8” 16” 18 5/8” 20”	1.05 1.315 1.66 1.9 2 3/8" 2 7/8" 3 1/2" 4" 4 1/2"
COUPLING PIPE GRADE IDENTIFICATION BY COLOUR

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1.Raw Material: API 5CT Seamless Steel Pipe

2.Usage: Well Drilling

3.Grade: J55, K55, N80-Q, L80-1, P110;

4.Size:4-1/2"-20"

5.Threading:8rd

BTC STC LTC Thread Coupling according to API 5CT & 5B

API 5CT 9th Casing Coupling

Raw Material: API 5CT Seamless Steel Pipe

Usage: Well Drilling Machinery

Steel Grade: J55, K55, N80-1, N80-Q, L80-1, P110;

Size:4-1/2"-20"

Type: LTC, BTC, STC

Surface Treatment: Whole phosphating, or inside phosphating and outside coating

Packing: By carton, wooden case, wooden pallet, or by requirements of customers

Shape: Tubular

Brand: KW

Color: white on surface and black inside thread

Supply Ability: 20000pcs per month

All the detailed specification of casing couplings covering size 4-1/2"-20", grade K55, J55, P110, N80Q, L80-1, type of buttress thread, long round thread, short round thread as follow for your reference,

The APIcouplings for Casing Size and Specifications
Descriptions and size		Type of Thread	O.D*L (mm)	Weight (kg)
Casing Coupling	4-1/2"	STC	127.00*158.75	5.23
	4-1/2"	LTC	127.00*177.80	4.15
	4-1/2"	BTC	127.00*225.42	4.55
	5"	STC	141.30*165.10	4.66
	5"	LTC	141.30*196.85	5.75
	5"	BTC	141.30*231.78	5.85
	5-1/2"	STC	153.67*171.45	5.23
	5-1/2"	LTC	153.67*203.20	6.42
	5-1/2"	BTC	153.67*234.95	6.36
	6-5/8"	STC	187.71*184.15	9.12
	6-5/8"	LTC	187.71*222.25	11.34
	6-5/8"	BTC	187.71*244.48	11.01
	7"	STC	194.46*184.15	8.39
	7"	LTC	194.46*228.60	10.83
	7"	BTC	194.46*254.00	10.54
	7-5/8"	STC	215.90*190.50	12.30
	7-5/8"	LTC	215.90*234.95	15.63
	7-5/8"	BTC	215.90*263.52	15.82
	8-5/8"	STC	244.48*196.85	16.23
	8-5/8"	LTC	244.48*254.00	21.67
	8-5/8"	BTC	244.48*269.88	20.86
	9-5/8"	STC	269.88*196.85	18.03
	9-5/8"	LTC	269.88*266.70	25.45
	9-5/8"	BTC	269.88*269.88	23.16
	10-3/4"	STC	298.45*203.20	20.78
	10-3/4"	BTC	298.45*269.88	25.74
	11-3/4'	STC	323.85*203.20	22.64
	11-3/4'	BTC	323.85*269.88	28.03
	13-3/8"	STC	365.12*203.20	25.66
	13-3/8"	BTC	365.12*269.88	31.77
	16"	STC	431.80*228.6	34.91
	16"	BTC	431.80*269.88	40.28
	18-5/8"	STC	508.00*228.60	51.01
	18-5/8"	BTC	508.00*269.88	62.68
	20"	STC	533.40*228.6	43.42
	20"	LTC	533.4*292.10	57.04
	20"	BTC	533.40*269.88	50.10

Pup joint Specifications

Product		Oil pup joint ,CASING AND TUBING PUP JOINT
Tubing Pup Joint	Size:	1.9",2-3/8", 2-7/8",3-1/2",4",4-1/2",
Length(NU/mm):		300~500,
Outer Diameter(mm):		48.26,60.32,73.02,88.9,101.60,114.30,
Thread type:		EU/NU.
Casing Pup Joint		Size: 4-1/2",5",5-1/2",6-5/8",7",7-5/8",8-5/8",9-5/8", 10-3/4",11-3/4",13-3/8",
Length(NU/mm):		300~500,
Outer Diameter(mm)		114.30,127.00,139.70,168.28,177.8,193.70,219.08,244.48,273.05,298.45,,339.72
Thread type:		STC/LC/BTC
Steel grade(Material)		J55 ,K55 ,N80, L80, P110,
Thickness		2.87 - 16.00 mm
Color:		Pipe body is black ,coupling is red ,green, white( can according to customers requirement)
Productivity		3600 tons /week
Packing:		Box, Pallet, Shrink Film Wrapping ,7Piece/Tie,Both ends are the protection screw cap Or according to customers requirement
Surface treatment:		Whole phosphating, or inside phosphating and outside coating
Technical Characters:		1.Adopting the advanced production line crack detecting, quenching, the continuous overall tempering and sand blasting processes to achieve higher mechanical strength ability with overall good performance. 2. The thread is cut by the special-purpose numerical control lathe which keeps the rod body still when cutting the threads. The special process ensures a high precision of thread with better reliability and life-span. 3.Use the raw materials with high mechanical strength and good comprehensive properties. 4.Screw using special CNC machining,and it in manufacture of high precision,operational safety and long life. 5. Coupling using the phosphating treatment,good wear resistance,tread anti adh