A variation of our Hydril Pressure Control Hydril Pressure Control GX annular BOP, Hydril Pressure Control's Annu-Flex combines either a single or dual subsea annular blowout preventer with a maintenance-free, flexible underwater riser joint. Together, the BOP head/flex joint combination reduces overall stack height and requires fewer stack connections. Additionally, the Hydril Pressure Control Annu-Flex offers rapid and economical maintenance, simple and reliable operations, and long service life. These benefits can be attributed to its distinctive design and distinguishing features which include:
- A flex joint design that eliminates friction that causes binding and galling as well as the need for lubrication and pressure compensation commonly found in ball-type designs.
- An elastomer element, the key component of the subsea flexible joint, is permanently bonded to an inner housing and outer ring.
- A guide ring/wear bushing absorbs through-the-bore wear during normal operations to protect the elastomer element and the main housing.
- A housing/latched head to retain full working pressure rating.
|Bore Size (inches)||18-3/4|
|Working pressure (psi)||10,000|
|Hydraulic Operating Pressure (psi)||1,500|
|Gal. to Close (U.S. gal.)||58|
|Gal. to Open (U.S. gal.)||58|
|Clearance Diameter (inches)||84|
|Rated Working Pressure||2,000 psi|
|Maximum Tension||2 million lb|
|Bending Moment||20,000 ft-lb/°|
|Flex from vertical||10°|