Annular BOP


                     Annular BOP with Spherical packing element                                             Annular BOP with tapered packing element 

The design and manufacture of Annular BOP is according to API Spec 16A standard

l   Packing element is spherical or tapered type with massive storage volume, low operation pressure and excellent sealing function;

l   Bonnet is hemispherical-shaped, so there is no stress concentration on bonnet whenever bearing the pressure;

l   Bonnet and body are connected by a wedge block, so the pressure is evenly distributed;

l   Packing element is interchangeable with similar overseas products;

l   The life span of the packing element can be checked through the observation hole;

l   Piston is set in low position to have a shorter moving distance; Use wear ring on piston.

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