BOP Spherical Rubber
In the structure, it is divided into annular blowout preventer with spherical plastic core, annular blowout preventer with
cone-shaped plastic core, and blowout preventer with tube-shaped plastic core. Annular BOP top cap and housing are connected by bolts or claw blocks.
Blowout preventer with spherical plastic core and dust-proof characteristics: reasonable structure, easy
operation, long life of plastic core, adapt to a wide range, capable to seal pipe string with nominal paths from 0-DN in ans
shapes, better performance by combining with ran blowout preventer in the use