According to requirements of customer, special specification and model products can also be desinged and manufactured.
The ZFF Type Float Valve is one kind of unidirectional check valve which can be used in preventing from blowout and well kick to reduce loss of drilling fluid and keep the rig floor clear.
|
Type |
O. D. (mm) |
Bearing Back Pressure |
Connection |
Drill Pipe (in) |
| ZFF127 | φ 127 | 35MPa 70MPa | NC38× NC38 | 5″ |
| ZFF159 | φ 159 | 35MPa 70MPa | NC46× NC46 | 6 1/4″ |
| ZFF165 | φ 165 | 35MPa 70MPa | NC50× NC50 | 6 1/2″ |
| ZFF178 | φ 178 | 35MPa 70MPa | NC50× NC50 | 7″ |
| ZFF203 | φ 203 | 35MPa 70MPa | 6 5/8REG× 6 5/8REG | 7″ |
| ZFF228.6 | φ 228.6 | 35MPa 70MPa | 7 5/8REG× 7 5/8REG | 9″ |
| ZFF241 | φ 241 | 35MPa 70MPa | 7 5/8REG× 7 5/8REG | 9 1/2″ |