Our 'B' &' W' Annular BOPs are compact, strong and simple construction with
reliably seal which provide positive pressure control for stripping drill into and out of hole.
‘B’ Bolted Cover Annular BOP
(For small sizes or lower working pressure)
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'W' Wedge Cover Annular BOP
(For large sizes or higher working pressure) |
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Available
Working Pressures (PSI) |
Bore Sizes |
7-1/16"
(180mm) |
9"
(230mm) |
11"
(280mm) |
13-5/8"
(346mm) |
16-3/4"
(426mm) |
18-3/4"
(476mm) |
20-3/4"
(527mm) |
21-1/4"
(540mm) |
10,000 |
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5,000 |
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- |
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3,000 |
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- |
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2,000 |
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