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API 16A Annular Blowout Preventer

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

Annular BOP Sizes and Models

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-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.