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Help CenterManufacture Stainless Steel Pipe Fittings for Tubing &casing
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Henan Dongfanglong Machine Manufacture Co.,LTD was founded in 1999 and located at intersection of 106 National Highway and JIntian road,Puyang,Henan,Chian.We have over 15 years experience of producing,
developing and selling oil pipes and their accessories,steel pipe fittings and other down well tools.We can supply the related certifications for you as follow:
- ISO 9001 Quality control certificate
- API-5CT Certificate with the NO.5CT-0837
- API-7 Certificate with the No.7-0872
- API -5DP Certificate with the No.5DP-0135
The company has a fixed assets of over 570 million RMB,and is staffed with over 200 employees,almost hundred sets of accurate CNC lathes,auxiliary equipments and developed other machines and testing
equipments.Our own trademark has been registered and approved since february 2010.
We hope to cooperate with you by our high quality products and excellent service.
manufacture stainless steel pipe fittings for tubing &casing
1.Standard:API 5CT 5B
2.Thread type: NU EU STC LTC BTC
3.Grade:J55 K55 N80-1 N80-Q L80 P110
4.Size:1.9"-20"
Below are the sizes of the API 5CT pipe fitting for Tubing& Casing that we offer.
API non-upset tubing coupling Dimensions and masses
Tubing OD(in) |
Coupling OD (in-mm) |
Length (in-mm) |
Weight per coupling/Kg |
Package Quantity (piece) |
Package Weight/Kg
|
Teeth number per25.4mm of thread (piece) |
1.9 |
2.188-55.575 |
3.750-95.250 |
0.56 |
2900 |
1624 |
10 |
2 3/8 |
2.875-73.025 |
4.500-114.300 |
1.28 |
1512 |
1936 |
10 |
2 7/8 |
3.500-88.900 |
5.500-139.700 |
2.34 |
800 |
1872 |
10 |
3 1/2 |
4.250-107.950 |
5.625-142.875 |
3.71 |
502 |
1863 |
10 |
4 |
4.726-120.040 |
5.750-146.050 |
4.35 |
382 |
1662 |
10 |
4 1/2 |
5.200-132.080 |
6.500-165.100 |
4.89 |
252 |
1233 |
10 |
API external-upset tubing coupling Dimensions and masses
Tubing OD (in) |
Coupling OD (in) |
Length (in) |
Weight per coupling/Kg |
Package Quantity (piece) |
Package Weight/Kg |
Teeth number per25.4mm of thread (piece) |
1.9 |
2.188 |
3.750 |
0.84 |
2800 |
2352 |
8 |
2 3/8 |
3.036 |
4.875 |
1.55 |
1444 |
2239 |
8 |
2 7/8 |
3.668 |
5.500 |
2.40 |
792 |
1901 |
8 |
3 1/2 |
4.500 |
5.750 |
4.10 |
448 |
1837 |
8 |
4 |
4.750 |
5.750 |
4.82 |
320 |
1543 |
8 |
4 1/2 |
5.563 |
6.500 |
6.05 |
252 |
1552 |
8 |
API Short round thread casing couplings
|
Casing OD/in |
Coupling OD/in- mm |
Length/in-mm |
Weight per coupling/Kg |
Package Quantity Piece |
Package Weight/Kg |
Teeth nunmber per 25.4mm of thread(Piece) |
4 1/2 |
5.000-127.00 |
6.250-158.75 |
3.62 |
343 |
1242 |
8 |
5 |
5.563-141.30 |
6.500-165.1 |
4.66 |
210 |
979 |
8 |
5 1/2 |
6.050-153.67 |
6.750-171.45 |
5.23 |
216 |
1130 |
8 |
6 5/8 |
7.390-187.71 |
7.250-184.15 |
9.12 |
115 |
1049 |
8 |
7 |
7.875-200.03 |
7.250-184.15 |
10.88 |
120 |
1007 |
8 |
7 5/8 |
8.500-215.90 |
7.500-190.5 |
12.30 |
80 |
984 |
8 |
8 5/8 |
9.625-244.48 |
7.750-196.85 |
16.23 |
60 |
974 |
8 |
9 5/8 |
10.625-269.88 |
7.750-196.85 |
18.03 |
50 |
902 |
8 |
10 3/4 |
11.750-298.45 |
8.000-203.2 |
20.78 |
45 |
935 |
8 |
11 3/4 |
12.750-323.85 |
8.000-203.2 |
22.64 |
35 |
793 |
8 |
13 3/8 |
14.375-365.12 |
8.000-203.2 |
25.66 |
25 |
642 |
8 |
16 |
17.000431.8 |
9.000-228.6 |
34.91 |
20 |
698 |
8 |
18 5/8 |
20.000-508.0 |
9.000-228.6 |
54.01 |
12 |
648 |
8 |
20 |
21.000-533.4 |
9.000-228.6 |
43.42 |
12 |
520 |
8 |
APILong round threadcasing couplings
Casing OD(in) |
Coupling OD (in- mm) |
Length(in-mm) |
Weight per coupling/Kg |
Package Quantity Piece |
Package Weight (Kg) |
Teeth nunmber per 25.4mm of thread(Piece) |
4 1/2 |
5.000-127.00 |
7.000-177.8 |
4.15 |
294 |
1220 |
8 |
5 |
5.563-141.30 |
7.750-196.85 |
5.75 |
210 |
1208 |
8 |
5 1/2 |
6.050-153.67 |
8.000-203.2 |
6.42 |
180 |
1156 |
8 |
6 5/8 |
7.390-187.71 |
8.750-222.25 |
11.34 |
100 |
1083 |
8 |
7 |
7.875-200.03 |
9.000-228.6 |
13.92 |
100 |
1134 |
8 |
7 5/8 |
8.500-215.90 |
9.250-234.95 |
15.63 |
50 |
1250 |
8 |
8 5/8 |
9.625-244.48 |
10.000-254.0 |
21.67 |
48 |
1040 |
8 |
9 5/8 |
10.625-269.88 |
10.500-266.7 |
25.45 |
40 |
1018 |
8 |
APIButtress thread casing couplings
Casing OD(in) |
Coupling OD (in-mm) |
Length(in-mm) |
Weight per coupling/Kg |
Package Quantity Piece |
Package Weight (Kg) |
Teeth nunmber per 25.4mm of thread(Piece) |
4 1/2 |
5.000-127.00 |
8.875-225.42 |
4.55 |
196 |
892 |
5 |
5 |
5.563-141.30 |
9.125-231.78 |
5.85 |
144 |
843 |
5 |
5 1/2 |
6.050-153.67 |
9.250-234.95 |
6.36 |
144 |
916 |
5 |
6 5/8 |
7.390-187.71 |
9.625-244.48 |
10.54 |
92 |
970 |
5 |
7 |
7.875-200.03 |
10.000-254.00 |
11.01 |
80 |
881 |
5 |
7 5/8 |
8.500-215.90 |
10.375-263.52 |
15.82 |
64 |
1013 |
5 |
8 5/8 |
9.625-244.48 |
10.625-269.88 |
20.86 |
48 |
1002 |
5 |
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