Shenhua machinery manufacture Co., LTD, design of ring bop compact structure, and sealing all kinds of shapes and sizes of drilling pipe and pipe fittings, party drill collar, casing, the cable. And up next drill pipe pressure control of provide fixed. Ring the bop have conical and spherical two kinds, spherical bop bolted cover type type and wedge type type two kinds of cover. They are all ring the bop, compact structure, and suitable for air quality light can be worked in low temperature.
Spherical bop characteristics

Strong and reliable sealing rubber core: in hundreds of rated pressure test, can provide reliable under the seal.

Strong and simple structure: the major components.

Compact body design, saving space: height only other annular bop's 80 to 85 percent.

Hydraulic system simple easy operation: only need to connect two hydraulic connector.

Wear-resisting ring and activities to avoid the gold pieces of metal contact, maximize extended service time.

Suitable for H2S working job: standard BOP internal suitable conditions, and simple as H2S bolts and driving that its external suit H2S replacement working conditions.

Special bop lighter type of hoisting by helicopter can.

Easy operation and maintenance. Rubber core change won't make mud entering the hydraulic system.

Steel structure of reinforced sealers, in rubber wear out, won't form seal.

Rubber core design unexpectedly may extend hole undergauge service period.