Product features:
1. The single flow valve is made of drillable material, the body is made of phenolic resin, and the spring is made of tin bronze. The overall performance meets the requirements of APIRP10FIIC.
2. Internal cement filling, using high sulfur resistant oil well cement, with good drillability and erosion resistance.
3. The machining inspection of threads shall be carried out in accordance with API5B standards.
4. Suitable for one-time injection cementing of large-sized surface casing and technical casing, capable of carrying a weight of 30 tons of drilling tools.
| Specification (mm)/(in) | Outer diameter (mm) | Inner diameter (mm) | Height (mm) | Water eye diameter (mm) | Applicable thread types | Pressure bearing capacity (MPa) | Single weight (KG) | Drawing No | |
| 140 | 2005/1/2 | 160 | 127.3-118.6 | 500 | 45 | API thread/special thread | 35 | 38 | FCBCCTIN140 |
| 168 | 2006/5/8 | 187.8 | 153.6-144.1 | 550 | 45 | API thread/special thread | 35 | 42 | FCBCCTIN168 |
| 178 | 7 | 200 | 166-150.4 | 550 | 45 | API thread/special thread | 35 | 56 | FCBCCTIN178 |
| 194 | 2007/5/8 | 219.1 | 178.4-162 | 550 | 45 | API thread/special thread | 35 | 64 | FCBCCTIN194 |
| 219 | 2008/5/8 | 244.5 | 205.6-190.8 | 550 | 45 | API thread/special thread | 35 | 72 | FCBCCTIN219 |
| 244 | 2009/5/8 | 269.7 | 226.6-214.3 | 550 | 70 | API thread/special thread | 35 | 78 | FCBCCTIN244 |
| 273 | 2010/3/4 | 298 | 258.9-242.8 | 550 | 70 | API thread/special thread | 35 | 98 | FCBCCTIN273 |
| 298 | 2011/3/4 | 323.9 | 281.5-273.6 | 600 | 70 | API thread/special thread | 35 | 120 | FCBCCTIN298 |
| 340 | 2013/3/8 | 365 | 320.4-313.6 | 600 | 70 | API thread/special thread | 35 | 148 | FCBCCTIN340 |
| 406 | 16 | 431.8 | 384.1-381.3 | 650 | 70 | API thread/special thread | 21 | 182 | FCBCCTIN406 |
| 473 | 2018/5/8 | 508 | 450.9 | 650 | 70 | API thread/special thread | 21 | 230 | FCBCCTIN473 |
| 508 | 20 | 531.2 | 485.7-475.7 | 650 | 70 | API thread/special thread | 21 | 312 | FCBCCTIN508 |