The  Hydro-Brake® Flow Control provides improved hydraulic performance over conventional flow regulators with patented features that reduce maintenance requirements. 

The Hydro-Brake® Flow Control is simple effective and economical. When used in conjunction with our Downstream Defender® oil and grit separator or Rocla CleansAll® GPT and Rocla OSD Storage System, a complete cost effective stormwater management solution is possible.

  • Large outlet openings
  • Provides storage savings up to 30%
  • No moving parts
  • No external power source
  • Self-activating
  • Robust stainless steel construction
  • Over 14,000 installations


  • Stormwater control
  • Sewage control
  • Detention basins
  • Application description
  • Flow range: (2 l/s – 3,000 l/s)

Manufactured by Hydro International Ltd, it is available from Rocla under exclusive license in Australia.