Low pressure, twice as fast as HP water. Safe silent subsea blasting with easy nozzle control up to 300 meters

Subsea underwater series

Blasting underwater structures with compressed air is a perfect way to remove dirt, paint and corrosion. With Gritco’s specially developed SubSea Series the job can be done more safe and economical than ever before.

Compared to onshore blasting, subsea blasting requires much higher system pressures (because of ambient underwater pressures). In HPsystems these high pressures create safety issues and heavy working conditions for the diver. With an extremely low nozzle pressure of just 2 to 6 bar, Gritco’s SubSea Series provide much safer and comfortable working conditions.

  • Powerful benefits

    • Ultimate diver safety caused by low blasting pressures and uninterrupted, 2-way diver-to-crew communication (because of silent underwater operation)
    • No retro jets because of low, minimal pressures (unlike High Pressure Water systems)
    • Light and easy, one hand nozzle handling
    • Production output usually doubles that of HP-systems
    • Design and production are based upon decades of knowledge and experience

  • Better blasting value

    • Different surface finishes can be obtained with simple pressure control varying from marine growth removal to bare metal finish
    • Perfectly matt, non-reflective finish for remote observation and subsea inspection 
    • Exceeds SA2.5 standard (e.g. for repainting)
    • Wide range of models and full back up possibility
    • Blasting depth possibilities range from 50 (standard series) to 300 meters (special series)

  • Quality includes

    • Double safety and emergency stop features
    • Time tracking for on-time replacement of critical (wear) parts
    • Spray painted, galvanized and non-ferrous fittings
    • Completely safe according to European Directive PED 2014/68/EU

  • Better blasting economics

    • Silent underwater operation allows constant 2-way Diver-to-Crew communication
    • Doubles the blasting output of HP systems