Wellhead device

double ram BOP

Product description: double ram BOP
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double ram BOP

The blowout preventer(BOP) is an essential pressure control device during driling and operations, as it serves to prevent the uncontrolled leakage of oil/gas from the wells. Hhengwang has developed three series of BOPs: drilling BOP, workover BOP and oil producing BOP. Shengji can also produce annular BOPs, single ram BOPs and double ram BOPs. The BOP rams are manifold, including: blind ram, pipe ram, shear ram and variable diameter ram. Due to its stable performance and long service life, Shengji BOP wins high praise from our customers.

The HW hydraulic ram BOP is mainly used in workover and drilling operations with varied technical requirements. With a BOP body,side outlet, ram body, and other pressure bearing parts crafted from defect-free forged metal, and an oval-shaped inner chamber to reduce stress concentration and improve its sealing performance, this BOP can efficiently prevent an oil well blowout.

The double ram BOP can be equipped with different types of rams, such as pipe ram, blind ram, shear ram or variable diameter ram, to meet different applications. The ram seal is a float type, which will decrease the resisitance and abrasion of the rubber core.The service life is greatly prolonged. Its anti-H2S performance conforms to NACE MR 0175 standard.

Standard:API16A
Bore size:7 1/16—21 1/4”
Material :forged and casing
Pressure: 2000-10000psi

There are A type (cone gum core )annular BOP and D type(ball gum core) annular BOP

Technical parameter:

1) A type

Type	Bore in(mm)	Working pressure(Mpa/psi)	Close volume oil(L)	Open volume oil(L)	Outer size(mm)	Weight (KGS)
FH18-70	7 1/16(179.4)	70/10000	36	27	1200*1250	6293
FH28-70	11(279.4)		66	66	1465*1653	12290
FH35-70	13 5/8(346.1)		116	117	1554*1742	15190
FH43-35	16 3/4(425.4)	35/5000	134	134	1680*1590	14100
FH54-14	21 1/4(539.8)	14/2000	136.5	84.9	1380*1503	7660

2) D type

Type	Bore in(mm)	Working Pressure (MPa/psi)	Hydraulic control pressure (MPa)	Close volume oil(L)	Open volume oil(L)	Weight (kgs)	Hydraulic control connection
FH18-21	7 1/16(179.4)	21/3000	≤10.5/1500	20	13	1200	NPT1”
FH18-35	7 1/16(179.4)	35/5000		21	15	1500	NPT1”
FH23-21	9(228.6)	21/3000		34	22.8	2398	VNPT1”
FH23-35	9(228.6)	35/5000		42	33	2986	NPT1”
FH28-21	11(279.4)	21/3000		50	39	2950	Rc1/2”
FH28-35	11(279.4)	35/5000		72	56	4675	NPT1”
FH35-35	13 5/8(346.1)	35/5000		94	69	6415	NPT1 1/2”
FH43-35	16 3/4(425.4)	35/5000		220	171	16000	NPT1”
FH53-21	20 3/4(527)	21/3000		173	110	6994	Rc1/2”
FH54-35	21 1/4(539.8)	35/5000		241	181	20230	NPT1”