• Overview
  • Specifications
  • Related Products


Introduced in 2006, the EVO compact, offshore ram-type BOP combines engineering simplicity, footprint and operational savings, and superior reliability for improved performance in demanding drilling environments.

The EVO BOP design achieves a shorter, lighter footprint than conventional BOPs, requiring fewer accumulator bottles without compromising power. Its field-proven packers, seals and seal carriers, removable side ram, and hydraulically opening bonnets offer reliability and ease of maintenance. It uses patented technologies, including the ROV-operable EVO-Loc BOP locking system and bidirectional sealing ram to help reduce downtime.


  • Application: offshore (subsea and surface) and land
  • Bore sizes and working pressures: 18 3/4-in 15,000 and 20,000 psi 
  • Body styles: single, double, or triple
  • Pressure-energized rams
  • Lock types
    • Hydraulic
    • EVO-Loc system and motors
  • Bonnet studs instead of bolts
  • Available bonnets
    • EVO 300 bonnet assembly with available shear-booster technology for increased shearing and sealing capability
    • BroadShear ram bonnets available for greater shearing capability
  • Field-replaceable bonnet cylinders, pistons, and seals
  • Manufactured in accordance with NACE and capable of being monogrammed to API 16A