API 5CT J55 N80 Pup Joint and Coupling for Oil and Gas Pipes - 2 3/8" to 13 3/8" OD with EU/NU Threads
Pup joints are precision components used to adjust the height of full-length tubing or casing strings and fine-tune the depth positioning of downhole tools in oil and gas operations.
- Integral Premium Thread Box-by-Pin configurations
- Pin-by-Pin assemblies with couplings boxed separately
- Pin-by-Pin with couplings hand tight
- Pin-by-Coupling Box arrangements
- Flush joint connections for specialized applications
| OD | Grade | End Type | Length (FT) |
|---|---|---|---|
| 2 3/8" | J/K/L/N/P | NUE/EUE | 2/3/4/5/6/8/10/12 |
| 2 7/8" | J/K/L/N/P | NUE/EUE | 2/3/4/5/6/8/10/12 |
| 3 1/2" | J/K/L/N/P | NUE/EUE | 2/3/4/5/6/8/10/12 |
| 4 1/2" | J/K/L/N/P | NUE/EUE | 2/3/4/5/6/8/10/12 |
| OD | Grade | End Type |
|---|---|---|
| 4 1/2" | J/K/L/N/P | LTC/STC/BTC |
| 5" | J/K/L/N/P | LTC/STC/BTC |
| 5 1/2" | J/K/L/N/P | LTC/STC/BTC |
| 6 5/8" | J/K/L/N/P | LTC/STC/BTC |
| 7" | J/K/L/N/P | LTC/STC/BTC |
| 7 5/8" | J/K/L/N/P | LTC/STC/BTC |
| 8 5/8" | J/K/L/N/P | LTC/STC/BTC |
| 9 5/8" | J/K/L/N/P | LTC/STC/BTC |
| 10 3/4" | J/K/L/N/P | LTC/STC/BTC |
| 11 3/4" | J/K/L/N/P | LTC/STC/BTC |
| 13 3/8" | J/K/L/N/P | LTC/STC/BTC |
Casing couplings are essential accessories for tubing and casing pipes, available in sizes from 1.66" to 13-3/8" with thread types including NU, EU, STC, BTC, and LTC. Manufactured to API 5CT/5B/5L standards in grades H40, J55, K55, N80, L80, P110 and beyond.
| Size | Thread Type | O.D*L (mm) | Weight (kg) |
|---|---|---|---|
| 4-1/2" | STC | 127.00*158.75 | 5.23 |
| 4-1/2" | LTC | 127.00*177.80 | 4.15 |
| 4-1/2" | BTC | 127.00*225.42 | 4.55 |
| 5" | STC | 141.30*165.10 | 4.66 |
| 5" | LTC | 141.30*196.85 | 5.75 |
| 5" | BTC | 141.30*231.78 | 5.85 |
| 5-1/2" | STC | 153.67*171.45 | 5.23 |
| 5-1/2" | LTC | 153.67*203.20 | 6.42 |
| 5-1/2" | BTC | 153.67*234.95 | 6.36 |
| 6-5/8" | STC | 187.71*184.15 | 9.12 |
| 6-5/8" | LTC | 187.71*222.25 | 11.34 |
| 6-5/8" | BTC | 187.71*244.48 | 11.01 |
| 7" | STC | 194.46*184.15 | 8.39 |
| 7" | LTC | 194.46*228.60 | 10.83 |
| 7" | BTC | 194.46*254.00 | 10.54 |
| 7-5/8" | STC | 215.90*190.50 | 12.30 |
| 7-5/8" | LTC | 215.90*234.95 | 15.63 |
| 7-5/8" | BTC | 215.90*263.52 | 15.82 |
| 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 | 50.10 |
We supply comprehensive API 5CT/5B/5L casing and tubing couplings ranging from 1.66" to 13-3/8" with thread configurations including NU, EU, STC, BTC, and LTC. Available in grades H40, J55, K55, N80, L80, P110 and beyond for diverse oilfield applications.
| Size (in) | O.D. (in) | Minimum Length (in) | Weight (lbs) |
|---|---|---|---|
| 2-3/8 | 2.875 | 4-1/4 | 2.82 |
| 2-7/8 | 3.500 | 5-1/8 | 5.15 |
| 3-1/2 | 4.250 | 5-5/8 | 8.17 |
| 4 | 4.750 | 5-3/4 | 9.58 |
| 4-1/2 | 5.200 | 6-1/8 | 10.77 |
Dongying OilMan Machinery Equipment Co.
Address: North Two Road, Dongying City, Shandong Province, China
Mobile/WhatsApp/WeChat: +86 13475294399
Email: christal@oilmancn.com
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.