Drilling Systems
Literature - Annular Blowout Preventers
ANNU-FLEX

Designed specifically for subsea drilling applications, Hydril Pressure Control's Annu-Flex combines a reliable subsea annular blowout preventer with a maintenance-free, flexible underwater riser joint.
GK®

For surface applications on land and offshore platforms. Pressure capabilities up to 20,000 psi.
GL®

For deep well and subsea applications. Available bore sizes/pressure ratings: 18-3/4", 5,000 psi; 21-1/4", 5,000 psi.
GX® /GXS™

Industry leading performance for surface and subsea. Pressure capabilities up to 15,000 psi.