XT750

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Specifications


Depth Rating: 1500 MSW
Power: 750 HP
Control System: Single Mode
Fiber Optic PC Based
Burial Performance: Up to 3.0 m Burial
1 m @ 100 KPa
Pressure & Flow Water Jetting System: Variable
Lift Point: Variable
Soil Education System: Water Jetting System;
Trench Backfill System: Water Jetting System

Depth Capacity: 1500 MSW (Deeper options on request)
Thruster Configuration • Four 500mm diameter high performance horizontal thrusters in quad arrangement
• Four 500mm diameter high performance vertical thrusters

Maximum Speed (Free flying)  
  Forward: 2.25 knots
  Lateral: 1.9 knots
Maximum Speed (Tracked)  
  Forward: 50-2500 m/hr
Dimensions (Maximum)  
  Width: 5130 mm
  Length (excluding tools): 7007 mm
  Height: 3113 mm
  Skid Configuration: 23000 kg
  Tracked Mode Configuration: 24000 kg
  Pipe Running Mode Configuration: 23000 kg

Propulsion System

  • 187 kW/250 HP Electrohydraulic power units (1)
  • Horizontal thrusters (4)
  • Vertical thrusters (4)

Hydraulic Manifolds

  • Thruster control manifold (Servo Valves) (1)
  • General Functions Valve Packs-12 functions/pack max output flow 15
  • LPM/function: max pressure 210 bar (4)
  • Proportional control manifold, 5 function (tracks, LP water pumps and depressor) (1)
  • 4 station valve manifold

Lighting System (3000 watts total)

  • 250 watt lights, 2 per dimming circuit standard (12)

Depth Sensor

  • High accuracy sensor, 0.1% over full scale for depth

Control System

  • ROV Surface control-Pentium PC based, database driven software and real-time operating system
  • ROV subsea control-Pentium PC based

Spare Data Transmission

  • Real-time video channels available (8)
  • Spare Fiber optic interface card slot (1)
  • Customer solenoid valve drivers (pre-wired) (9)
  • Customer digital out (8)
  • Customer digital in (8)
  • Customer analog out (4)
  • Customer analog in (8)
  • Full duplex RS232 @ 115 kBps data channels (4)
  • Full/half duplex RS485/422/232 @ 115 kBps channels (4)

 


Jetting System

  • Electrically driven HP water pumps (2)
    • 4200 LPM max flow
    • 14 bar max pressure
  • Hydraulically driven HP Water pumps (1)
    • 11800 LPM max flow
    • 14 bar max pressure
  • Hydraulically driven LP Water Pumps (2)
    • 8000 LPM max flow
    • 5 bar max pressure
  • Rear mounted “Bagpipe” cable burial tool and cable depressor option

Pipeline Burial Capabilities

  • Pipe Size Range: 150 to 600mm (diameter). Options available to 600mm on request
  • Cohesive Soil: Up to 100 kPa
  • Non-Cohesive Soil: Sand, Silt and Gravel to 30mm
  • Burial Depth: 1.0m to 3.0m (depending on soil conditions)
  • Burial Speed: 350 to 2000 m/hr (depending on soil conditions and burial depth)

Track System

  • Underwater Tracks, hydraulic driven (2)
  • Minimum Soil Strength – 3.5 kPa Shear Strength

Optional Pipe Capture System

  • Front and rear driven pipe gripping rollers to provide motive force along pipeline during burial operations (2)
  • Both roller systems include raise/lower deployment mechanism to adjust ROV height off pipeline

Additional Senor and Tool Equipment

  • Scanning Sonar
  • Radio Beacon
  • Master/Slave or Rate Manipulators
  • Cable Cutter & Gripper
  • Cable Location System
    • Navigation System
    • Dredge Pump
    • Strobe Flasher
    • Control/Work/Storage Vans
    • Umbilical Winch
    • Launch & Recovery System

The specification details are illustrative for marketing purposes only. Actual equipment may be different as a result of product improvement or other reasons. Specific interface and performance information should be reconfirmed at time of order placement.