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Via Cristoforo Colombo 163 - 00147 Roma

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ROV ALPHA 4

L’ALPHA 4 The ALPHA 4 is a compact, high-performance trenching ROV designed for post-lay inspection, burial, and maintenance of subsea power, telecom, and O&G umbilical cables.


Combining high installed power, operational flexibility, and dual operating modes (free-fly and tracked), the ALPHA 4 represents a benchmark solution for modern trenching operations at deep water depths.

Operational Capabilities:

• Trenching of power, telecom, and O&G umbilical cables
• Post-lay inspection and cable maintenance
• Operating modes: free-fly and tracked
• Installed power: 400 kW
• Operating depth: up to 2,000 m

Trenching Performance

• Maximum trenching depth: 2.5 m
• Maximum product diameter: 200 mm
• Trenching speed: up to 750 m/hr
• Speed on tracks: up to 2,400 m/hr

Main Technical Characteristics

• Length: 2,5 m
• Breadth: 200 mm
• Velocità di interramento: fino a 750 m/h
• Velocità su cingoli: fino a 2.400 m/h

Main features


• Dimensions:
 – Length: 5.30 m
 – Breadth: 4.00 m
 – Height: 3.00 m
• Weight (in air): 12 tons
• Structure: AISI 316L stainless steel
• Piping and fittings: AISI 316 stainless steel
• Power: 400 kW
• Power supply: 500 kVA, 380/440 V, 50 Hz

Instrumentation and Systems


• Cameras: 8 Simec HD-SDI color zoom cameras
• Lighting: 9 LED lamps
• Sensors and instrumentation:  
– 1 Tritech PA500 altimeter  
– 12 pressure sensors  
– 4 electrical Pan & Tilt units
 – 1 TSS 440/350 Dualtrack system
• Automatic modes:  
– Auto heading  
– Auto tracks  
– Auto depth  
– Auto altitude
• Positioning system:  
– 2 Kongsberg cNODE transponders
• Cable tracking system:  
– TSS 440 and 350 Dualtrack

Jetting System


• Jetting tools:  
– Rear tool with depressor  
– Front jetting tool
• Jetting pumps:  
– 2 pumps, 450 m³/h – 6 bar

Optional Survey Instrumentation


• Fiber optic compass: PNI Compass TCMXB
• Sonar profiler: BluePrint Oculus MD750d
• Bathymetric system: Valeport miniIPS

Shipboard Support


• Launch and recovery system: SMD C2777 AF A-Frame – 12.5 t
• Required deck space: 150 m²
• Onboard power supply: 1,000 kVA
• Operating crew: 8 personnel

Info

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      Contacts

      Lun - Ven : 9:00 -17:00
      +039.0688811838
      info@elettratlc.it

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      Via Cristoforo Colombo 163
      00147 – Roma
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