| Flange Size | Working pressure (PSI) | Number of Bolt Holes | Diameter of Bolt Holes | API Ring Gasket |
| 1-13/16" | 10,000 | 8 | 3/4" | BX-151 |
| 1-13/16" | 15,000 | 8 | 7/8" | BX-151 |
| 1-13/16" | 20,000 | 8 | 1" | BX-151 |
| 2-1/16" | 2,000 | 8 | 5/8" | R-23 |
| 2-1/16" | 3,000/5,000 | 8 | 7/8" | R-24 |
| 2-1/16" | 10,000 | 8 | 3/4" | BX-152 |
| 2-1/16" | 15,000 | 8 | 7/8" | BX-152 |
| 2-1/16" | 20,000 | 8 | 1-1/8" | BX-152 |
| 2-9/16" | 2,000 | 8 | 3/4" | R-26 |
| 2-9/16" | 3,000/5,000 | 8 | 1" | R-27 |
| 2-9/16" | 10,000 | 8 | 7/8" | BX-153 |
| 2-9/16" | 15,000 | 8 | 1" | BX-153 |
| 2-9/16" | 20,000 | 8 | 1-1/4" | BX-153 |
| 3-1/8" | 2,000 | 8 | 3/4" | R-31 |
| 3-1/8" | 3,000 | 8 | 7/8" | R-31 |
| 3-1/8" | 5,000 | 8 | 1-1/8" | R-35 |
| 3-1/16" | 10,000 | 8 | 1" | BX-154 |
| 3-1/16" | 15,000 | 8 | 1-1/8" | BX-154 |
| 3-1/16" | 20,000 | 8 | 1-3/8" | BX-154 |
| 4-1/16" | 2,000 | 8 | 7/8" | R-37 |
| 4-1/16" | 3,000 | 8 | 1-1/8" | R-37 |
| 4-1/16" | 5,000 | 8 | 1-1/8" | BX-155 |
| 4-1/16" | 20,000 | 8 | 1-3/4" | BX-155 |
| 5-1/8" | 5,000 | 8 | 1-1/2" | R-44 |
| 7-1/16" | 2,000 | 12 | 1" | R-45 |
| 7-1/16" | 3,000 | 12 | 1-1/8" | R-45 |
| 7-1/16" | 5,000 | 12 | 1-3/8" | R-46 |
| 7-1/16" | 10,000 | 12 | 1-1/2" | BX-156 |
| 7-1/16" | 15,000 | 16 | 1-1/2" | BX-156 |
| 7-1/16" | 20,000 | 16 | 2" | BX-156 |
| 9" | 2,000 | 12 | 1-1/8" | R-49 |
| 9" | 3,000 | 12 | 1-3/8" | R-49 |
| 9" | 5,000" | 12 | 1-5/8" | R-50 |
| 9" | 10,000 | 16 | 1-1/2" | BX-157 |
| 9" | 15,000 | 16 | 1-7/8" | BX-157 |
| 11" | 2,000 | 16 | 1-1/4" | R-53 |
| 11" | 3,000 | 16 | 1-3/8" | R-53 |
| 11" | 5,000 | 12 | 1-7/8" | R-54 |
| 11" | 10,000 | 16 | 1-3/4" | BX-158 |
| 11" | 15,000 | 20 | 2" | BX-158 |
About JC Wellhead
Jingcheng Petroleum Machinery Manufacturing Co.,Ltd was specialized in design and manufacturing of the oilfield wellhead equipment and established in 2008, YCJC Petroleum Equipment is certified by API 6A and 16A and registered supplier for CNPC, GWDC, CCDC in China.
YCJC also engaged in abroad marketing, through these years of efforts, our wellhead equipment is exported to many countries, such as Thailand, UAE, Iran, Brazil, Argentina, USA etc. and enjoyed good reputation from the customers.
With profession engineers we also offer the R&D service to the clients who have special requirements in the oilfield drilling operation and production operation. The main well control and wellhead equipment as following:
*BOP : Taper Rubber Annular BOP, Spherical rubber Annular BOP, Single Ram BOP, Double Ram BOP
* Wellhead Equipment: X-mas tree, casing head, casing hanger, tubing head, tubing hanger, casing spool, tubing spool, API Clamp, API Clamp Hub
* Wellhead valve: Gate valve, Choke valve, Check valve, Mud valve, and valve parts
* Wellhead adapter: Double studded adapter flange, spacer spool, riser spool, drilling spool, weldneck flange, union flange adapter
* Other wellhead equipment parts: Hammer union, Elbow, swivel joint, block cross, Block Tee,
* Oil well manifold: choke manifold, kill manifold, testing manifold
Welcome to contact us for more information!
