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After-sales Service: | 1 Year |
Warranty: | 1 Year |
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The steel pipe coupling is a short pipe or tube that with threads on both ends, used to connect pipelines. So It is a kind of pipe fittings that with threaded connection, the advantage is easy for pipeline maintenance or to replace the broken pipe.
API Coupling refers to the steel couplings that used in connecting casing pipe and tubing. Also known by OCTG coupling, it is usually manufactured in seamless type, material grade same with the pipe body (API 5CT K55/J55, N80, L80, P110 etc), same PSL or providing higher grades than requested. Same heat treatment also applicable, except there is an special requirements.
Normally tubing coupling OD maximum is 4 1/2", as the tubing pipe is applied for the drilling activities (Inside the tubing is the sucker rod to drill/pump the oil), couplings type is more various and rigorous than casing, mostly used is thicken type upset coupling (Internal upset and external upset), for short is EUE coupling, it is the most favorable in tubing connections. Tubing with EU end (EUE) coupling connection also called UPTBG. Because of the end of the tubing is thickened (upset), the connecting stress is better than buttress coupling.Buttress coupling another type used for tubing connections, it has the same thickness of the pipe body, called NU end (NUE)tubing or TBG.
Tubing Pipe Outside Diameter(In) | Tubing Pipe Outside Diameter(mm) | Coupling Outside Diameter(mm) | Minimum Length(mm) | Diameter Of Recess(mm) | Width of Bearing Face Regular (mm) |
Max Bearing Face Diameter (mm) | Mass(Kg) | |||||||||
NUE | EUE | NUE | EUE | NUE | EUE | NUE | EUE | NUE | EUE | NUE | EUE | |||||
Regular | Special Clearance |
Regular with special bevel | Special Clearance |
Regular | Special Clearance |
|||||||||||
1.9 | 48.26 | 55.88 | 63.50 | -- | 95.25 | 98.42 | 49.86 | 54.76 | 1.59 | 3.18 | 52.07 | 58.34 | -- | 0.56 | 0.84 | -- |
2 3/8 | 60.32 | 73.02 | 77.80 | 73.91 | 107.95 | 123.82 | 61.93 | 67.46 | 4.76 | 3.97 | 66.68 | 71.83 | 69.90 | 1.28 | 1.55 | 1.07 |
2 7/8 | 73.02 | 88.90 | 93.17 | 87.88 | 130.18 | 133.35 | 74.63 | 80.16 | 4.76 | 5.56 | 80.98 | 85.88 | 83.24 | 2.34 | 2.40 | 1.55 |
3 1/2 | 88.90 | 107.95 | 114.30 | 106.17 | 142.88 | 146.05 | 90.50 | 96.85 | 4.76 | 6.35 | 98.42 | 104.78 | 100.71 | 3.71 | 4.10 | 2.38 |
4 | 101.60 | 120.65 | 127.00 | -- | 146.05 | 152.40 | 103.20 | 109.55 | 4.76 | 6.35 | 111.12 | 117.48 | -- | 4.35 | 4.82 | -- |
4 1/2 | 114.30 | 132.08 | 141.30 | -- | 155.58 | 158.75 | 115.90 | 122.25 | 4.76 | 6.35 | 123.19 | 130.96 | -- | 4.89 | 6.05 | -- |
Casing Pipe Outside Diameter(In) | Casing Pipe Outside Diameter(mm) | Coupling Outside Diameter(mm) | Minimum Length(mm) | Diameter Of Recess(mm) | Width of Bearing Face Regular (mm) |
Mass(Kg) | |||||||||
Round (LTC /STC) |
BTC | Round | BTC | Round (LTC/ STC) |
BTC | Round (LTC/ STC) |
BTC | Round | BTC | ||||||
Regular | Special Clearance |
STC | LTC | STC | LTC | Regular | Special Clearance |
||||||||
4 1/2 | 114.30 | 133.35 | 133.35 | 123.82 | 158.75 | 177.80 | 225.42 | 116.68 | 117.86 | 7.14 | 6.35 | 5.24 | 5.96 | 6.89 | 3.48 |
5 | 127.00 | 147.32 | 147.32 | 136.52 | 165.10 | 196.85 | 231.78 | 129.38 | 130.56 | 7.14 | 7.14 | 6.43 | 7.86 | 8.38 | 4.00 |
5 1/2 | 139.70 | 160.02 | 160.02 | 149.22 | 171.45 | 203.20 | 234.95 | 142.08 | 143.26 | 6.35 | 7.14 | 7.34 | 8.92 | 9.30 | 4.47 |
6 5/8 | 168.28 | 187.71 | 187.71 | 177.80 | 184.15 | 222.25 | 244.48 | 170.66 | 171.83 | 6.35 | 6.35 | 9.12 | 11.34 | 11.01 | 5.65 |
7 | 177.80 | 200.03 | 200.03 | 187.32 | 184.15 | 228.60 | 254.00 | 180.18 | 181.36 | 7.94 | 7.94 | 10.88 | 13.92 | 13.98 | 6.28 |
7 5/8 | 193.68 | 215.90 | 215.90 | 206.38 | 190.50 | 234.95 | 263.52 | 197.64 | 197.23 | 5.56 | 7.94 | 12.16 | 15.63 | 15.82 | 9.29 |
8 5/8 | 219.08 | 244.48 | 244.48 | 231.78 | 196.85 | 254.00 | 269.88 | 223.04 | 222.63 | 6.35 | 9.52 | 15.62 | 21.67 | 20.86 | 10.80 |
9 5/8 | 244.48 | 269.88 | 269.88 | 257.18 | 196.85 | 266.70 | 269.88 | 248.44 | 248.03 | 6.35 | 9.52 | 17.85 | 25.45 | 23.16 | 12.02 |
10 3/4 | 273.05 | 298.45 | 298.45 | 285.75 | 203.20 | -- | 269.88 | 277.02 | 276.61 | 6.35 | 9.52 | 20.58 | -- | 25.74 | 13.39 |
11 3/4 | 298.45 | 323.85 | 323.85 | -- | 203.20 | -- | 269.88 | 302.42 | 302.01 | 6.35 | 9.52 | 22.43 | -- | 28.03 | -- |
13 3/8 | 339.72 | 365.12 | 365.12 | -- | 203.20 | -- | 269.88 | 343.69 | 343.28 | 5.56 | 9.52 | 25.42 | -- | 31.77 | -- |
16 | 406.40 | 431.80 | 431.80 | -- | 228.60 | -- | 269.88 | 411.96 | 410.31 | 5.56 | 9.52 | 34.33 | -- | 40.28 | -- |
18 5/8 | 473.08 | 508.00 | 508.00 | -- | 228.60 | -- | 269.88 | 478.63 | 476.99 | 5.56 | 9.52 | 53.33 | -- | 62.68 | -- |
20 | 508.00 | 533.40 | 533.40 | -- | 228.60 | 292.10 | 269.88 | 513.56 | 511.91 | 5.56 | 9.52 | 42.81 | 56.98 | 50.10 | -- |
Shijiazhuang Jimai Machinery Equipment Technology Co., Ltd is a large-scale professional manufacturer of drilling rigs and water well rigs in Hebei Province, China. It includes 5 series and more than 50 kinds of products. The leading products are: XY series core drilling rigs, JM series water well trucks, casing drilling series, as well as mud pumps, drill pipe series, etc.
1.Why choose us ?
Jimai Machinery is a very professional drilling rig supplier in China. We have rich experience in this industry for many years.Now our products are serving around the world.we have High Quality, Competitive Price, and Fast Shipment.
2.Do you offer any custom designs?
Yes,we have our own trade factory. We provide services to top range partners.Produce a superior product for you by your designs.
3.How To Order ?
Step 1, please tell us what model and quantity you need;
Step 2, then we will make a PI for you to confirm the order details;
Step 3, when we confirmed everything, can arrange the payment;
Step 4, finally we deliver the goods within the stipulated time.
4. When will make delivery ?
About 7 work days after receipt of the payment.
12 months warranty for all kinds of products;
If you find any defective accessories first time, we will give you the new parts for free to replace in the next order, as an experienced manufacturer, you can rest assured of the quality and after-sales service.