According to requirements of customer, special specification and model products can also be desinged and manufactured.
Inside Blowout Preventer is a quick well head preventer. When well kick or blowout occurs, the inner blowout preventer is connected to the top of drill string in order to control well kick or blowout.
| Connection |
O. D (in) |
I. D (in) |
length in |
Weight (Kg) |
| 2-3/8IF | 3-3/8″ -3-3/4″ | 1-1/2″ | 26″ | 27 |
| 2-7/8IF | 4-1/8″ -4-1/4″ | 1-3/4″ | 28″ -30″ | 40 |
| 3-1/2IF | 4-3/4″ -5-1/4″ | 2″ | 30″ -31″ | 57 |
| 4IF | 6-1/4″ -6-3/4″ | 2-1/2″ | 33″ -34″ | 110 |
| 4-1/2IF | 6-3/8″ -7″ | 2-13/16″ | 33″ -34″ | 120 |
| 5-1/2FH | 7″ -7-1/2″ | 2-13/16″ | 33″ -34″ | 140 |
| 6-5/8REG | 8″ | 2-13/16″ | 34″ | 180 |
| 7-5/8REG | 9-1/2″ | 2-13/16″ | 34″ | 220 |