346.1 Mm 13 5/8" Shaffer Annular Bop API 16A Standard
API 16A Shaffer Annular Bop can be used in workover and drilling operations equipped with hydril control systems. The BOPs are designed and manufactured in full conformity to the API 16A standard. The Shaffer Annular Bop mainly consists of a body, a header, a rubber core, and a piston. The inner rubber core is interchangeable.
Annular Blowout Preventer specs
Item |
Specification for Annular BOP |
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Size and model |
7 1/16″ -3000psi |
7 1/16″ -5000psi |
9″ -3000psi |
9″ -5000psi |
11″ -3000psi |
11″ -5000psi |
13 5/8″ -3000psi |
13 5/8″ -5000psi |
20 3/4″ -3000psi |
21 1/4″ -5000psi |
mm/in Bore (mm/in.) |
179.4 7 1/16 |
179.4 7 1/16 |
228.6 9 |
228.6 9 |
279.4 11 |
279.4 11 |
346.1 13 5/8 |
346.1 13 5/8 |
527 20 3/4 |
539.8 21 1/4 |
Rated working pressure (MPa/psi) |
21 3,000 |
35 5,000 |
21 3,000 |
35 5,000 |
21 3,000 |
35 5,000 |
21 3,000 |
35 5,000 |
21 3,000 |
35 5,000 |
Hydrostatic pressure testing pressure (MPa/psi) |
42 6,000 |
70 10,000 |
42 6,000 |
70 10,000 |
42 6,000 |
70 10,000 |
42 6,000 |
70 10,000 |
31.5 4,500 |
70 10,000 |
Hydraulic-controlled rated working pressure (MPa/psi) |
21/3,000 |
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Recommended hydraulic working pressure seal pipe (MPa/psi) |
1,218~1,522psi |
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Max. working pressure seal well without a pipe in (MPa/psi) |
10.5 1,500 |
17.5 2,500 |
10.5 1,500 |
17.5 2,500 |
10.5 1,500 |
17.5 2,500 |
10.5 1,500 |
17.5 2,500 |
10.5 1,500 |
17.5 2,500 |
Recommended hydraulic working pressure seal well without a pipe in (MPa/psi) |
≤10 .5/1,500 |
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Open Max. oil volume (L) |
15 |
15 |
22.8 |
33 |
39 |
56 |
69 |
69 |
110 |
181 |
Close Max. oil volume (L) |
21 |
21 |
34 |
42 |
50 |
72 |
94 |
94 |
173 |
241 |
Lift weight by two lifting rings (t) |
16 |
16 |
16 |
25 |
25 |
25 |
32 |
32 |
32 |
64 |
The outlet of hydraulic oil |
NPT 1” |
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Temperature grade of metal |
T-20/250(-29℃~121℃) |
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Temperature grade of non-metal |
BAB (-18℃~66℃~93℃) |
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Medium material contact with well liquid |
Per to NACE MR-01-75, meet API 16A 4th Edition Standard |