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Coupling

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seat: Shaanxi
Validity to: Long-term effective
Last update: 2018-02-27 04:41
Browse the number: 114
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Dimensions of Tubing API Coupling (NU)

Size Range: 2-3/8", 2-7/8" and 3-1/2" OD for Tubing
4-1/2" -20" OD for Casing
Thread type: 8RD, 10RD for Tubing(also called EU and NU)
BTC, LTC, STC for Casing
Also supply the customization threads as per client’s drawings.
Features:
1. Coupling is produced through tube rolling, heat treatment, threading and other procedures.
2. Surface treatment: Phosphating
3. Accordance with API 5CT and 5B standards.
4. Inspection includes Non-destructive testing, Hydrostatic pressure(Max.120 MPa).

If you are looking for competitive, high quality and fast delivery oilfield coupling in stock, or if you are planning to buy coupling API from one of the leading casing and tubing couplings, phosphating coupling, eue(8rd) and nue(10rd) coupling, premium connection coupling, casing and tubing collar gas tight connection manufacturers and suppliers China, please feel free to contact VIGOR.

1. Dimensions of Tubing API Coupling (NU)

Size
OuterDiameter  of  Tubing
Outer  Diameter  of  Coupling
Min.  Length  of  Coupling
Piece  Weight  (kg)
Suggested  Size  (Outer  Diameter  * Wall  Thickness)
1.900
48.26
55.88
95.25
0.56
55.9  *  8
2-3/8
60.32
73.02
107.95
1.28
73  * 11
2-7/8
73.02
88.90
130.18
2.34
88.9  * 12.5
3-1/2
88.90
107.95
142.88
3.71
108  * 15
4
101.60
120.65
146.05
4.35
120.7  * 15.5
4-1/2
114.30
132.08
155.58
4.89
132  * 15

2. Dimensions of Tubing API Coupling (EU)

Size
Outer Diameter  of  Tubing
Outer  Diameter  of  Coupling
Min.  Length  of  Coupling
Piece  Weight  (kg)
Suggested  Size  (Outer  Diameter  * Wall  Thickness)
1.900
48.26
63.50
98.42
0.84
63.5  *9.5
2-3/8
60.32
77.80
123.82
1.55
77.8  *11.5
2-7/8
73.02
93.17
133.35
2.40
93.17  *13
3-1/2
88.90
114.30
146.05
4.10
114.3  *15.5
4
101.60
127.00
152.40
4.82
127  *16
4-1/2
114.30
141.30
158.75
6.02
141.3  *17

3. Dimensions of Casing API Coupling 

Casing   Specification   (mm)

Outer   Diameter  

 of   Coupling   (mm)

Round   Thread Buttress   Thread
Short   Round   Thread Long   Round   Thread
Min.   Length   (mm) Weight   (kg) Min.   Length   (mm) Weight   (kg) Min.   Length   (mm) Weight   (kg)
114.30
127.00
158.75
3.62
177.80
4.15
225.42
4.55
127.00
141.30
165.10
4.66
196.85
5.75
231.78
5.85
139.70
153.67
171.45
5.23
203.20
6.42
234.95
6.36
177.80
194.46
184.15
8.39
228.60
10.83
154.00
10.54
193.68
215.90
190.50
12.30
234.95
15.63
263.52
15.82
244.48
269.88
196.85
18.03
266.70
25.45
269.88
23.16
273.05
298.45
203.20
20.78
- - 269.88
28.03
339.73
365.12
203.20
25.66
- - 269.88
31.77

4.API Coupling


Size
Type
Outer   Diameter
(0   /   1%)
Wall   Thickness
(0   /   2.5%)
API   Tubing
2   3/8
NU
73.00
12
2   3/8 EU 77.80 12
2   7/8 NU 88.90 13
2   7/8 EU 93.20 14
3   1/2 NU 108.00 14
3   1/2 EU 114.30 15
4 NU 120.70 15
4 EU 127.00 15
4   1/2 NU 132.10 15
4   1/2 EU 141.30 16
API   Casing
4   1/2
STC
127.00
12
4   1/2 LC 127.00 12
4   1/2 BC 127.00 12
5 STC 141.30 13
5 LC 141.30 14
5 BC 141.30 13
5   1/2 STC 153.70 13
5   1/2 LC 153.70 14
5   1/2 BC 153.70 13
6   5/8 STC 187.70 17
6   5/8 LC 187.70 17
6   5/8 BC 187.70 16
7 200.03
200.03 15
7 LC 200.03 16
7 BC 200.03 15
7   5/8 STC 215.90 18
7   5/8 LC 215.90 19
7   5/8 BC 215.90 18
8   5/8 STC

http://www.vigordrilling.com/

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