pumping unit

API 16A oilfield hydraulic ram bop

2019-08-22 17:03:00 25

API 16A oilfield hydraulic ram bop

Product Description


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. Over the past 40 years, Shengji has been maintaining and repairing BOPs at the Shengli Oilfield.In 2006, Shengji got its API 16A certificate (certificate No. API 16A-0172) for fabricating BOPs and related accessories. Since then, Shengji 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 Shengli 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 efficientlyl 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.API 16A oilfield hydraulic ram bop


Key Feature

1.Double ram BOP seals annular space between tubing and casing or wellbore.

2.Double ram BOP suspends and stabilizes string.

3.Double ram BOP with side outlets could be used for choke and blowout.

4.Double ram BOP can be used in operation under pressure.





Rated working pressure(psi)



Nominal diameter(in)

7 1/16

7 3/8

Strength pressure test(psi)



Oil cylinder working pressure(psi)



Piston stroke(mm)



Metal temperature class



Nonmetal temp. class



Oil cylinder closed chamber volume

2 x 1.75L

2 x 1.75L

Oil cylinder open chamber volume

2 x 1.50L

2 x 1.50L

Ram closed interval(s)



Ram specification

2 3/8” 2 7/8” 3 1/2” 4 1/2” blind ram

2 3/8” 2 7/8” 3 1/2” 4 1/2” blind ram

Bolt quantity and diameter

12-M30 x 3 x 210

12-M36 x 3 x 230

Ring gasket




1350 x 380 x 638

1350 x 395 x 656





API 16A oilfield hydraulic ram bop

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                                                         API  6A                                                                                                                       API 16A


Quality Control

API 16A oilfield hydraulic ram bop 


API 16A oilfield hydraulic ram bop 

Company Information

SHENGJI GROUP (formerly known as General Machinery Plant,SINOPEC) established in 1964 and restructured in 2007, covers an area of 158 acres, 1500 employees,1200 advanced equipment, annual revenue $150 milliion. SJ has 18 production plants, 8 subsidiaries and several offices around the main oilfield in the world.The group owns high level R & D center and National Laboratories carrying out strategic cooperation with China University of Petroleum and other several scientific research institutes of SINOPEC. SJ has obtained more than 150 national patents.The products have been exported to U.S.A, Canada, Peru, Ecuador, Venezuela, India, Saudi Arabia, Oman, Bahrain,  Iran,Turkmenistan,Kazakhstan,Russia,Sudan,etc.Shengji is Sinopec, CNPC, CNOOC, Shell, Chevron, GE, Schlumberger, Haliburton, Weatherford excellent supplier.

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