Annular BOP
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Annular BOP
The design and manufacture of Annular BOP is according to API Spec 16A standard.
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Packing element is spherical or tapered type with massive storage volume, low operation pressure and excellent sealing function; Bonnet is hemispherical-shaped, so there is no stress concentration on bonnet whenever bearing the pressure. Bonnet and body are connected by a wedge block, so the pressure is evenly distributed; Packing element is interchangeable with similar overseas products; Use observation hole to check the life span of the packing element; Piston is set in low position to have a shorter moving distance; Use wear ring on piston. |
The main technical performance and specification for the annular BOP:
Annular BOP classification | |||||
Operating pressure |
Drift diameter(in) |
||||
7 1/16 |
11 |
13 5/8 |
20 3/4 |
21 1/4 |
|
2000 |
Flange connection(bolted) |
Flange connection(bolted) |
Flange connection(bolted) |
- |
conical |
3000 |
Flange connection(bolted) |
Flange connection(bolted) |
Flange connection(bolted) |
conical |
- |
5000 |
Flange connection(bolted) |
Flange connection(bolted) |
Flange connection(bolted) |
- |
- |
10000 |
Flange connection(bolted) |
Wedge block connection |
Wedge block connection |
- |
- |

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