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Coupling:
Coupling are important accessories for tubing and casing pipes. Our company supplies various API 5CT/5B. casing and tubing coupling from 1.66to 13-3/8 in threads : NU, EU, STC, BTC, LTC.

Main technical parameters of coupling:


Tubing coupling Size(in)

O.D (in)

Minimum Length (in)

Weight (lb)

Round Thread

Round Thread

Round Thread

2-3/8

2.875

4-1/4

2.82

2-7/8

3.500

5-1/8

5.15

3-1/2

4.250

5-5/8

8.17

4

4.750

5-3/4

9.58

4-1/2

5.200

6-1/8

10.77

 

Main Technical Parameters of casing coupling:


Casing Coupling Size (in)

O.D.(in)

Minimum Length (in)

Weight (lb)

Round Thread

Round Thread

Round Thread

-

Short

Long

Short

Long

4-1/2

5.000

6-1/4

7

7.98

9.16

5

5.563

6-1/2

7-3/4

10.27

12.68

5-1/2

6.050

6-3/4

8

11.54

14.15

6-5/8

7.390

7-1/4

8-3/4

20.11

25.01

7

7.656

7-1/4

9

18.49

23.87

7-5/8

8.500

7-1/2

9-1/4

27.11

34.46

8-5/8

9.625

7-3/4

10

35.79

47.77

9-5/8

10.625

7-3/4

10-1/2

39.75

56.11

10-3/4

11.750

8

-

45.81

-

11-3/4

12.750

8

-

49.91

-

13-5/8

14.375

8

-

56.57

-

16

17.000

9

-

76.96

-

18-5/8

20.000

9

-

119.07

-

20

21.000

9

11-1/2

95.73

126.87

 
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