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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


------------------------
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


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