Double gate preventer

The double gate blowout preventer, housing, and main accessories are forged, and the gate chamber of the housing is elliptical in the longitudinal section perpendicular to the piston rod. The hydraulic cylinder pushes the piston rod to open and close the piston. The side door moves in a straight line, and the movement of one side door is controlled by two hydraulic cylinders. The shell is designed with an automatic sand cleaning structure. The gate is designed with an automatic centering structure

Two outlets are designed on the side of the body for special operations such as mud circulation, throttling and spraying, well killing, and well cleaning. The cylinder design has a pressure relief port that can release pressure and protect the device when the pressure is too high. There is a secondary seal designed on the middle flange. In emergency situations, if liquid is found leaking from the observation port, oil can be injected urgently

Technical Features

The well closing action is rapid and can be achieved within 3-8 seconds.

Easy to operate, remote control

The cross-section of the cavity is rectangular, with uniform force distribution and strong load-bearing capacity

The side door assembly can achieve hydraulic linear switching, which is convenient for replacing the gate and on-site maintenance

The sealing of the blowout preventer uses radial floating sealing instead of traditional end face sealing. The gate shaft seal has good sealing performance. The rubber core of the gate is independent and has a large reserve of rubber. The function expansion of the anti spray device is convenient, and it can be equipped with a shear assist device and a hydraulic locking device