Annular BOP

Quick-release top with a one-piece split lock ring permits quick packer changeout with no loose parts involved and provides visual indication of lock status
Field replaceability of components subject to wear
Full removability of entire operating system for immediate changeout in the field
Twin seals separated by a vented chamber to positively isolate the BOP operating system from wellbore pressure
High-strength polymer bearing rings that prevent metal-to-metal contact and reduce wear between all moving parts of the operating system
Optional 3-in gas bleed port that runs from the ID to the OD
Compliance with NACE specification MR0175 for H2S service