U-Series
Subsea Screw Jack
The U-Series Subsea Screw Jack is part of a specialist proposition from Power Jacks: a range of electro-mechanical subsea products specifically designed to operate at maximum efficiency in an underwater environment.
The U-Series Subsea Screw Jack has proven depth ratings of up to 3,000m and capacities up to 2,000kN as standard. On request they can go even deeper. They possess all the qualities you’d expect of Power Jacks products – strength, reliability, durability and high performance. And that means they’re ideally suited to operate in the toughest subsea conditions, anywhere in the world.
Useful Information
Key Features
- Proven depth ratings up to 3000m subsea as (deeper on request)
- Pressure compensated or flooded designs available
- Capacities up to 2000kN (200Te) as standard; up to 3500kN (3500Te) on request
- Translating & Rotating screw configurations
- Self-locking (the products only use power when moving)
- Anti-rotation mechanism for axial positioning
- Dual nut (safety nut) fail safe load-holding option
- Full stainless steel designs available
- Reinforced sealing
- Full range of anti-corrosion options
- ROV drive interfaces
- 6 Mounting Options including trunnion and double clevis
- Low (-65°C) to high (+250°C) temperature solutions available
- Vibration and shock load resistant designs
- Full range of feedback devices for speed, position, rotation, wear and load monitoring control
- Special custom designs available to meet your exact requirements
Typical Applications
U-Series subsea screw jacks can be used for a wide variety of subsea lifting, positioning and actuation solutions. Applications include pig launcher positioning, subsea caisson lifting, subsea riser positioning, riser release mechanism, mooring chain locking, connector release mechanism, TDU positioning and many more.
Ideal for replacing hydraulics.
Compared to Hydraulics Power Jacks Electo-Mechanical Screw Jacks deliver:
- Higher Performance
- Reduced Costs
- Increased Safety
- Easy Integration to Control Systems & Easier to Control
- More Environmentally Friendly
Jacking Systems
U-Series Subsea Screw jacks can be connected together in complete subsea systems so that multiple units can be operated and controlled in unison. These subsea jacking system arrangements or configurations can be designed in lots of different formats using our complementary subsea products such as Range-U bevel gearboxes, motors, reduction gearboxes, drive shafts, couplings, bearing supports and motion control devices.
Multiple subsea screw jacks connected in a mechanically linked system can mean that the complete system is considered self-locking. If you would like this checked please consult Power Jacks. Alternatively, to be sure, include a brake on the system.
Accessories
Anti-Backlash Gear Set
Anti-Rotation Mechanism
End Fittings
Trunnion Mount
Bellows Boot
Corrosion Protection
Safety Nut
Double Hub Lifting Nut
Motor Adaptor
