Circular anti spray device

The annular blowout preventer designed by our company has a compact structure and can seal various shapes and sizes of square drill rods, drill pipe joints, drill collars, casings, and cables. And provide fixed pressure control when lifting the drill rod. There are two types of annular blowout preventers: spherical and conical. Spherical blowout preventers have two types: bolted top cover type and wedge-shaped top cover type. They are all annular spray preventers with compact structure, light weight, suitable for air transportation, and can work at low temperatures.

Characteristics of spherical spray preventer

Durable and reliable sealant core: capable of providing reliable sealing under hundreds of rated working pressure tests.

A sturdy and simple structure consisting of five main components.

Compact main body design saves space: the height is only 80% to 85% of other annular blowout preventers.

The hydraulic system is simple and easy to operate: only 2 hydraulic joints need to be connected.

Wear resistant rings and moving parts avoid gold to metal contact, extending service life.

Suitable for H2S working conditions: The standard BOP is suitable for H2S working conditions internally, and simple bolt and hanger replacement makes its exterior suitable for H2S working conditions.

The particularly lightweight spray preventer can be lifted by a helicopter.

Simple and convenient operation and maintenance. Replacing the rubber core will not allow mud to enter the hydraulic system.

Steel reinforced seals will not form a seal after rubber wear is complete.

The design of the rubber core may even extend the service period of the drilling operation.