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Quick Details

Place of Origin: China (Mainland)
Brand Name: dalipal
Model Number: 139.7*6.02
Certification: API
Material: Carbon Steel

Specifications

Description:
API 5CT Tubing/casing Coupling & Pup Joint

 

Our company can provide all kinds of API 5CT series coupling.We try our best to make our products with excellent quality and

favorable price and we warmly welcome the customers to visit our factory and establish business cooperation. 

 

1) Tubing Coupling:2 3/8",2 7/8",3 1/2",4",4 1/2".
     Casing Coupling:4 1/2"- 20". 
2) Grade: J55, K55, N80, L80, P110 ,C95.
3) Thread: NU ,EU, STC ,LTC, BTC.
4) Standard: API 5CT.

5)Protection of Thread: Steel Thread protector.

6) Length:2' 4' 6' 8' 10' 12'.

 

ROUND THREAD CASING COUPLING


PIPE OD
(mm)

COUPLING OD
W(mm)

MIN LENGTH NL

Boring Diameter
Q+0.79 mm

Bearing 
Surface
Wideth b

Weight(Kg)

STC

LTC

STC

LTC

127.00

141.30

165.10

196.85

129.38

4.76

4.66

5.75

139.70

153.67

171.45

203.20

142.08

3.18

5.23

6.42

177.80

200.03

184.15

228.60

180.18

4.76

8.39

10.83

244.48

269.88

196.85

266.70

248.44

6.35

18.03

25.45

273.05

298.45

203.20

-

277.02

6.35

20.78

-

339.72

365.12

203.20

-

343.69

5.56

25.66

-

406.40

431.80

228.60

-

411.96

5.56

34.91

-

473.08

508.00

228.60

-

478.63

5.56

54.01

-

508.00

533.40

228.60

292.10

513.56

5.56

43.42

57.04

Note:  
1 All of size unit are Millimeter except they are marked.  
2 Tolerance W ±1% for group1, 2, 3, but it is not more than 3.18mm. 
3 Tolerance W±1% for group4,but it is not more than-1.59～+3.18mm. 

 

 

SIZE

COUPLING OD

MIN LENGTH NL(mm)

Boring Diameter Q(mm)

Bearing 
Surface
Wideth b(mm)

Weight kg

PIPE OD (mm)

W(mm)

Standard

127.00

141.30

231.78

130.56

3.97

5.85

139.70

153.67

234.95

143.26

3.97

6.36

177.80

200.03

254.00

181.36

5.56

10.54

244.48

269.88

269.88

248.03

9.52

23.16

273.05

298.45

269.88

276.61

9.52

25.74

339.72

365.12

269.88

343.28

9.52

31.77

406.40

431.80

269.88

410.31

9.52

40.28

473.08

508.00

269.88

476.99

9.52

62.68

508.00

533.40

269.88

511.91

9.52

50.10

Note:  
1 All of size unit are Millimeter except they are marked.  
2 Tolerance W ±1% for group1, 2, 3, but it is not more than 3.18mm.
3 Tolerance W±1% for group4,but it is not more than-1.59～+3.18mm.

 

Keywords:API 5CT Steel Pipe, J55,K55,L80,N80Q,C90,T95,P110 Oil/Petroleum Pup Joint, OCTG 
Certificate:
API 5CT,Russian Certificate,ISO,CCS


Packing:
Coating and steel thread protector.


Usage:

The API 5CT coupling is an internally threaded cylinder for connecting two threaded pipes. it is an integral part of the tubing and casing.Each tubing or casing should be equipped with an API coupling.The casing with different thread types selects different types of coupling.therefore,the product is mainly divided into buttress thread and round thread types,which correspond to buttress and round thread casing respectively.

 

Production Capacity: 500 000 tons/year