The pressure grade is lower (14MPa), but the bore is bigger (φ325mm). The mill pipe is mounted on the sealing ram

of bearing capacity BOP, the weight can reach to 80 tons. The BOP can close its dealing ram at anytime. At the

same time, there is a spool which is connected to 13 3/8″surface csing, the small flanges on two sides and collar

clamp are used for kill manifold, injecting cement and relief. The total height is 1000mm, it is convinient for

mounting. We adopt new model structure for convinient exchanging the rams, and the oil line will not have leakage.

It not only bears weight and seals mill pipe, but also seals drilling pipe.

Main technical parameters

* Working pressure : 14MPa

* Bore : φ325mm

* Control pressure : 8.5-10.5MPa

* Dinensions : 2380×620×1062mm