Oilfield Equipment Seamless Tubing and Casing Couplings Manufacturer

• Certification: ISO 9001:2000, API
• Power Source: Hydraulic
• Operation Pressure: Atmospheric Pressure
• Applicable Medium: Mud, Natural Gas, Crude Oil
• Structure: Vertical
• Material: Seamless Steel
• Model NO.: Casing Coupling
• Size: 4.5"-20"
• Grade: L80,N80,J55
• Thread: Btc,Ltc,Stc
• Type: Tubing/Casing
• Surface: Painting
• Transport Package: Pallet
• Specification: 7"
• Trademark: MED
• Origin: China
• HS Code: 7307
• Production Capacity: 5000/Month

Product Description

Oilfield Equipment Seamless Tubing and Casing Couplings Manufacturer

Material: carbon steel, stainless steel 
Size:  tubing coupling from 1.05" to 4-1/2",Casing coupling from 4-1/2"to 20"
Connection: Male, female 
Coupling Type:, NUE, EUE (tubing coupling), STC,LC,BTC(casing coupling).
Head: thread
Grade: J55,K55,N80,L80,P110 

 

Tubing Coupling Specification

 

Coupling is the joining of two short length pipes by the means of male and female threads.

All types of couplings have internal threads which are known as female thread forms. These thread forms are usually machined so that they can be coupled with the external threads on pipes known as male thread forms. Couplings are strictly designed as per API specifications.

There are two types of tubing couplings widely used in the pipeline coupling manufacturing industries namely:

Non-upset Thread Tubing Coupling

External-upset Thread Tubing Coupling

 

There are three types of casing couplings widely used in the pipeline coupling manufacturing industries namely:

 Short Thread Casing Coupling

Long Thread Casing Coupling

Buttress Thread Casing Coupling

 

Casing Coupling Specification

 

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