Product

Annular Blowout Preventers (API-16A)

We supply type S and type G annular blowout preventers; their sizes and models are in the table below. Type S annular blowout preventers have bolted-cover and wedge-cover; type G annular type blowout preventers have screwed-head and latched-head. Our blowout preventers are manufactured in accordance with API Specification 16A, Third Edition and NACE MR0175 per API Specification 16A, Temperature T20. They meet the applicable API and NACE requirements for H2S service.

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Annular BOP Sizes and Models

Working Pressure (psi) Bore (inches)
7-1/16 9 11 13-5/8 16-3/4 18-3/4 20-3/4 21-1/4
10,000
5,000
3,000
2,000


Annular BOP Specifications*

Bore (inches) 7-1/16 9 11 13-5/8 20-3/4 21-1/4
Working Pressure
(psi)
3,000 - 5,000 3,000 - 5,000 3,000 - 5,000 - 10,000 3,000 - 5,000 - 10,000 3,000 2,000
Operating
Pressure (psi)
1,500 - 1,500 1,500 - 1,500 1,500 - 1,500 - 1,500 1,500 - 1,500 - 1,500 1,500 1,500
Gallons to Close 4.92 - 4.57 7.23 - 11.05 11.00 - 18.67 - 30.58 23.50 - 23.58 - 40.16 43.40 31.10
Gallons to Open 3.43 - 3.21 5.03 - 8.72 6.78 - 14.95 - 24.67 14.67 - 17.41 - 32.64 26.90 18.90
Width (inches) 29 - 29 35-1/2 - 40 39-7/8 - 44-3/4 - 57 46-3/8 - 50 - 64-1/2 54-1/8 52-3/4
Height (inches),
Studded Top,
Flanged Bottom
29-1/8 - 30-7/8 32-1/2 - 36-1/2 32-7/8 - 41-1/2 - 53 40-11/16 - 44-15/16 - 58-3/4 48-7/16 52-1/2
Weight (lbs),
Studded Top,
Flanged Bottom
2,900 - 3,175 4,775 - 6,800 5,825 - 9,550 - 23,000 9,100 - 13,650 - 32,475 14,600 15,100
Ring Gasket R-45 - R-46 R R-49 - R-50 R-53 - R-54 - BX-158 R-57 - BX-160 - BX-159 R-74 R-73

*This is only a partial listing of our annular blowout preventers. Data in this table are for reference only.