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Couplings are short lengths of pipe used to connect 2 joints of tubing or casing.They come with painted colour codes on their external surface to indicate their grades.
Standards and Technical Conditions for Supply:API Spec 5CT and 5B
Size:1.9” --20”
Grade:J55,K55,N80-1,N80Q,L80-1,C90,C95,T95,P110,Q125
Tread types: NUE, EUE, VAM, STC, LTC, BTC, special clearance, XC,VAM TOP,NEW VAM.
Packing: by carton, wooden case, wooden pallet or customized
Tubing and casing are key portions of OCTG. Tubing is a distinct pipe, installed in production casing after well cementing to allow the oil and gases flow to the ground. Casings are those pipes supporting the wall of oil and gas well. It is mainly divided in 3 major categories- the surface, protection and production casing.
Size and Specifications For Tubing and Casing Couplings:
Descriptions and size | Type of Therad | O.D*L | Weight | Descriptions and size | Type of Therad | O.D*L | Weight |
(mm) | (kg) | (mm) | (kg) | ||||
Casing Coupling | Tubing Coupling | ||||||
4-1/2" | LTC | 127.00*177.80 | 4.15 | 1.05 | EUE | 42.16*82.55 | 0.38 |
4-1/2" | BTC | 127.00*225.42 | 4.55 | 1.315 | NUE | 42.16*82.55 | 0.38 |
5" | STC | 141.30*165.10 | 4.66 | 1.315 | EUE | 48.26*88.90 | 0.57 |
5" | LTC | 141.30*196.85 | 5.75 | 1.66 | NUE | 52.17*88.90 | 0.59 |
5" | BTC | 141.30*231.78 | 5.85 | 1.66 | EUE | 58.88*95.25 | 0.68 |
5-1/2" | STC | 153.67*171.45 | 5.23 | 1.9 | NUE | 55.88*95.25 | 0.56 |
5-1/2" | LTC | 153.67*203.20 | 6.42 | 1.9 | EUE | 63.50*98.42 | 0.84 |
5-1/2" | BTC | 153.67*234.95 | 6.36 | 2-3/8" | NUE | 73.02*107.95 | 1.28 |
6-5/8" | STC | 187.71*184.15 | 9.12 | 2-3/8" | EUE | 77.80*132.82 | 1.55 |
6-5/8" | LTC | 187.71*222.25 | 11.34 | 2-7/8" | NUE | 88.90*130.18 | 2.34 |
6-5/8" | BTC | 187.71*244.48 | 11.01 | 2-7/8" | EUE | 93.17*133.35 | 2.4 |
7" | STC | 194.46*184.15 | 8.39 | 3-1/2" | NUE | 107.95*142.88 | 3.71 |
7" | LTC | 194.46*228.60 | 10.83 | 3-1/2" | EUE | 114.30*146.05 | 4.1 |
7" | BTC | 194.46*254.00 | 10.54 | 4" | NUE | 120.65*146.05 | 4.35 |
7-5/8" | STC | 215.90*190.50 | 12.3 | 4" | EUE | 127.00*152.40 | 4.82 |
7-5/8" | LTC | 215.90*234.95 | 15.63 | 4-1/2" | NUE | 132.08*155.58 | 4.89 |
7-5/8" | BTC | 215.90*263.52 | 15.82 | 4-1/2" | EUE | 141.30*158.75 | 6.05 |
8-5/8" | STC | 244.48*196.85 | 16.23 | ||||
8-5/8" | LTC | 244.48*254.00 | 21.67 | ||||
8-5/8" | BTC | 244.48*269.88 | 20.86 | ||||
9-5/8" | STC | 269.88*196.85 | 18.03 | ||||
9-5/8" | LTC | 269.88*266.70 | 25.45 | ||||
9-5/8" | BTC | 269.88*269.88 | 23.16 | ||||
10-3/4" | STC | 298.45*203.20 | 20.78 | ||||
10-3/4" | BTC | 298.45*269.88 | 25.74 | ||||
11-3/4' | STC | 323.85*203.20 | 22.64 | ||||
11-3/4' | BTC | 323.85*269.88 | 28.03 | ||||
13-3/8" | STC | 365.12*203.20 | 25.66 | ||||
13-3/8" | BTC | 365.12*269.88 | 31.77 | ||||
16" | STC | 431.80*228.6 | 34.91 | ||||
16" | BTC | 431.80*269.88 | 40.28 | ||||
18-5/8" | STC | 508.00*228.60 | 51.01 | ||||
18-5/8" | BTC | 508.00*269.88 | 62.68 | ||||
20" | STC | 533.40*228.6 | 43.42 | ||||
20" | LTC | 533.4*292.10 | 57.04 | ||||
20" | BTC | 533.40*269.88 | 50.1 |
Union Victory offer you kinds of Tubing and Casing Couplings, contact us for price: enquiry@vicsteelpipe.com
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