Forum 3-Stage Hydraulic Controller

  • 3 pressure settings
  • Master flow setting
  • Direction control
  • All operations by pilot pressure


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This provides three preset control pressures with flow and direction control. This is ideal for torque tool control where the three pressures may represent breakout, running and maximum torque settings. The pressures are manually set on the surface then switched subsea by pilot pressure from spare hydraulic functions of the host ROV.