English
Español
Português
Français
|
Product: |
Casing and Tubing Coupling, Casing Coupling, Tubing Coupling |
|
Application: |
Used for connect 2 joints of tubing or casing |
|
Size: |
Tubing Coupling : 1.9'' - 4-1/2'' |
|
|
Casing Couping : 4-1/2'' - 13-3/8'' |
|
Pipe Standard: |
API 5CT and 5B PSL1/PSL2 J55,K55,N80-1,N80-Q, |
|
|
API 5CT and 5B L80-1,C90, C95,T95, P110, Q125 |
|
Surface: |
Whole Phosphating or inside phosphating and outside coating |
|
Thread: |
NUE, EUE, STC, LTC, BTC, premium connection |
|
Special Service |
Sweet Service, Sour Service, Anti-H2S, NACE MR0175/ISO15156 |
Casing and tubing couplings are short lengths of pipes applied to connect two joints of casing and tubing. They are painted different color codes on their external surface to indicate their grades. Casing coupling and tubing coupling are manufactured according to API 5CT and 5B specifications.
API Casing Coupling:
|
Specification |
|
|
Size (Pipe OD) (in) |
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, 16, 18-5/8, 20 |
|
Threading |
Short Round-Thread Casing (STC) Long Round-Thread Casing (LC) Buttress Thread Casing (BC) |
|
Grade |
H-40, J-55, K-55, C-75, L-80, N-80, C-95, AS-95, P-110, L80-13CR |
API Tubing Coupling:
|
Specification |
|
|
Size (Pipe OD) (in) |
1.900, 2-3/8, 2-7/8, 3-1/2, 4, 4-1/2 |
|
Upset |
Non Upset External Upset |
|
Grade |
J-55, C-75, L-80, N-80, C-95, P-110 |
|
Option |
Electro-zinc plated Phosphorised |
Application
The steel coupling is mainly used to connect oil pipes in pil drilling.
This product can be used to connect the shafts of units that are
manufactured separately.
It can fit the misalignment of the shafts or introduce mechanical flexibility.
The pipe coupling is capable of reducing the transmission of shock losds from one shaft to another.
It can also introduce protecyion against overloads.
The steel coupling can be used to alter vibration characteristics of
rotating units.
Pipe coupling is also used to connect drilling par and driven part.
Casing Couplings Short Thread Specifications:
|
Casing Couplings |
Casing Size OD (inches) |
Coupling Size OD (inches) |
Length (inches) |
Weight per Coupling (lbs) |
Palletized Carton Quantity |
Palletized Carton Weight |
|
|
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 |
7.656 |
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 |
- |
|
|
18-5/8 |
20 |
9.000 |
118.94 |
10 |
- |
|
|
20 |
21.000 |
9.000 |
98.25 |
10 |
- |
Casing Couplings Long Thread Specifications:
|
Casing Couplings |
Casing Size OD (inches) |
Coupling Size OD (inches) |
Length (inches) |
Weight per Coupling (lbs) |
Palletized Carton Quantity |
Palletized Carton Weight |
|
|
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 |
7.656 |
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 |
|
|
10-3/4 |
11.750 |
* 10.500 |
* 62.38 |
45 |
* 36 |
|
|
11-3/4 |
12.750 |
* 10.500 |
* 67.59 |
30 |
* 24 |
|
|
13-3/8 |
14.375 |
* 10.500 |
* 76.63 |
25 |
* 20 |
|
|
16 |
17.000 |
* 11.000 |
* 96.55 |
20 |
* 16 |
|
|
18-5/8 |
20.000 |
- |
- |
10 |
8 |
|
|
20 |
21.000 |
* 11.500 |
* 126.74 |
10 |
8 |
|
|
* NOT API SPECIFICATIONS. |
||||||
Casing Coupling - Buttress Thread
|
Casing Couplings |
Casing Size OD (inches) |
Coupling Size OD(inches) |
Length (inches) |
Weight per Coupling (lbs) |
Palletized Carton Quantity |
Palletized Carton Weight |
|
|
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 |
7.656 |
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 |
36 |
2307 |
|
|
11-3/4 |
12.750 |
10.625 |
61.74 |
24 |
2179 |
|
|
13-3/8 |
14.375 |
10.625 |
69.95 |
20 |
1429 |
|
|
16 |
17.000 |
10.625 |
87.56 |
16 |
- |
|
|
18-5/8 |
20.000 |
10.625 |
138.03 |
8 |
- |
|
|
20 |
21.000 |
10.625 |
110.33 |
8 |
- |
Tubing Couplings - External Upset End (EUE):
|
EUE |
Casing Size OD (inches) |
Coupling Size OD (inches) |
Threads per inch |
Length (inches) |
Weight per Coupling (lbs) |
Palletized Carton Quantity |
Palletized Carton Weight |
|
|
1.90 |
2.500 |
10 Round |
- |
1.85 |
- |
- |
|
2-3/8 |
3.063 |
8 Round |
4.875 |
3.42 |
1,444 |
3942 |
|
|
2-7/8 |
3.668 |
8 Round |
5.500 |
5.29 |
792 |
4220 |
|
|
3-1/2 |
4.500 |
8 Round |
5.750 |
9.02 |
448 |
3860 |
|
|
4 |
5.000 |
8 Round |
- |
10.62 |
392 |
- |
|
|
4-1/2 |
5.563 |
8 Round |
6.500 |
13.31 |
252 |
3456 |
Tubing Couplings - Non Upset End (NUE)
|
Non-Upset |
Casing Size OD (inches) |
Coupling Size OD (inches) |
Threads per inch |
Length (inches) |
Weight per Coupling (lbs) |
Palletized Carton Quantity |
Palletized Carton Weight |
|
|
1.90 |
2.200 |
10 Round |
3.750 |
1.85 |
- |
- |
|
2-3/8 |
2.875 |
10 Round |
4.500 |
2.82 |
1,512 |
4264 |
|
|
2-7/8 |
3.500 |
10 Round |
5.500 |
5.15 |
800 |
4120 |
|
|
3-1/2 |
4.250 |
10 Round |
5.625 |
8.17 |
502 |
4101 |
|
|
4 |
4.75 |
8 Round |
5.75 |
9.57 |
392 |
- |
|
|
4-1/2 |
5.200 |
8 Round |
6.500 |
10.76 |
252 |
2712 |
Coupling Pipe Grade Identification By Paint Color
|
Grade |
Colour Coding (Painted Outside) |
|
H-40 |
Black |
|
J-55 or K-55 |
Green |
|
N-80 |
Red |
|
M-65 or L-80 |
Red with one Brown Band |
|
L-80 Type 9CR |
Red with two Yellow Bands |
|
L-80 Type 13CR |
Red with one Yellow Band |
|
C-90 Type 1 |
Purple |
|
C-90 Type 2 |
Purple with one Yellow Band |
|
T-95 Type 1 |
Silver |
|
T-95 Type 2 |
Silver with one Yellow Band |
|
C-95 |
Brown |
|
P-110 |
White |
|
Q-125 Type 1 |
Orange |
|
Q-125 Type 2 |
Orange with one Yellow Band |
|
Q-125 Type 3 |
Orange with one Green Band |
|
Q-125 Type 4 |
Orange with one Brown Band |
API 5B, Specification for Threading, Gauging and Thread Inspection of Casing, Tubing, and Line Pipe Threads.This Specification covers dimensions, tolerances and marking requirements for API threads and the gauges that control the acceptance criteria for the threads. Thread element gauges, instruments and requirements for the inspection of threads for line pipe, round thread casing, and buttress casing connections are included.
API Spec 5CT, Specification for Casing and Tubing, Eighth Edition, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells.This Standard specifies the technical delivery conditions for steel pipes (casing, tubing and pup joints), coupling stock, coupling material and accessory material and establishes requirements for three Product Specification Levels (PSL-1, PSL-2, PSL-3).
