PUYANG ZHONGSHI GROUP CO.,LTD

was founded in 1997

API 5CT | 6A | 10D | 11AX | 11E & ISO certificate

product series

Casing &Tubing Coupling

Ourcoupling manufacturing facilities utilize high quality coupling stock from pre-qualified seamless mills.
High-speed CNC lathes maintain the tight tolerances required by the industry.
Allcasing&tubing couplings are manufactured to API 5CT latest edition.


API Casing Coupling- Short Thread(STC)

STC

Casing Size OD (inches)

Coupling Size OD (inches)

Length (inches)

Weight per Coupling (lbs)

Palletized Carton Quantity

Palletized Carton Weight

API Casing Coupling Short Thread

4 1/2

5.000

6.250

8.05

343

2716

5

5.563

6.500

10.18

210

2168

5 1/2

6.050

6.750

11.44

216

2501

6 5/8

7.390

7.250

19.97

115

2322

7

7.875

7.250

18.34

120

2231

7 5/8

8.500

7.500

26.93

80

2322

8 5/8

9.625

7.750

35.58

60

2132

9 5/8

10.625

7.750

39.51

50

2006

10 3/4

11.750

8.000

49.61

45

2079

11 3/4

12.750

8.000

50.49

35

1767

13 3/8

14.375

8.000

56.23

25

1436

16

17.000

9.000

78.98

-

-

20

21.000

9.000

98.25

-



















































API Casing Couplings- Long Thread(LTC)

LTC

Casing Size OD (inches)

Coupling Size OD (inches)

Length (inches)

Weight per Coupling (lbs)

Palletized Carton Quantity

Palletized Carton Weight

API Casing Coupling Long Thread

4 1/2

5.000

7.000

9.07

294

2697

5

5.563

7.750

12.56

210

2573

5 1/2

6.050

8.000

14.03

180

2555

6 5/8

7.390

8.750

24.82

100

2315

7

7.875

9.000

23.67

100

2351

7 5/8

8.500

9.250

34.23

80

2807

8 5/8

9.625

10.000

47.48

48

2337

9 5/8

10.625

10.500

55.77

40

2302










































































API Casing Couplings- Buttress Thread(BTC)

BTC

Casing Size OD (inches)

Coupling Size OD (inches)

Length (inches)

Weight per Coupling (lbs)

Palletized Carton Quantity

Palletized Carton Weight

API Casing Coupling Long Thread

4 1/2

5.000

8.875

10.11

196

2007

5

5.563

9.125

12.99

144

2840

5 1/2

6.050

9.250

14.14

144

2061

6 5/8

7.390

9.625

24.46

92

2295

7

7.875

10.000

23.22

80

2068

7 5/8

8.500

10.375

64.84

64

2221

8 5/8

9.625

10.625

45.94

48

2414

9 5/8

10.625

10.625

50.99

40

2256

10 3/4

11.750

10.625

56.68

40

2307

11 3/4

12.750

10.625

61.74

36

2179

13 3/8

14.375

10.625

69.95

20

1429






























































API Tubing Couplings- External Upset End(EUE)

EUE

Size OD (inches)

Coupling Size OD (inches)

Length (inches)

Weight per Piece (lbs)

Palletized Carton Quantity

Palletized Carton Weight

API Non-Upset Coupling

2 3/8

3.063

4.875

3.42

1,444

3942

2 7/8

3.668

5.500

5.29

792

4220

3 1/2

4.500

5.750

9.02

448

3860

4 1/2

5.563

6.500

13.31

252

3456





































API Tubing Couplings- Non Upset End(NUE)

NUE

Size OD (inches)

Coupling Size OD (inches)

Length (inches)

Weight per Piece (lbs)

Palletized Carton Quantity

Palletized Carton Weight

API Non-Upset Coupling

2 3/8

2.875

4.500

2.82

1,512

4264

2 7/8

3.500

5.500

5.15

800

4120

3 1/2

4.250

5.625

8.17

502

4101

4 1/2

5.200

6.500

10.76

252

2712