3000psi-10000psi Annular Blowout Preventer Shaffer Type

Our Annular Blowout Preventer are commonly used for surface and subsea drilling in H2S field services.

The Annular BOP is designed and manufactured according to the API Spec 16A standard.

The packing element is spherical or tapered with a large storage volume, low operating pressure, and excellent sealing function.
The bonnet is hemispherical, which ensures an even distribution of pressure and eliminates stress concentration. This design also makes it convenient for disassembly and assembly.