Engineering & structure
Door arrangement, moving structure, locking, interfaces and project documentation coordinated around the vessel.
Marine access systems
Moon Pool Door Systems
Open moon pools increase hydrodynamic resistance on offshore vessels. Parosha engineers the door structure and can coordinate hydraulic cylinders, position feedback, rubber fenders, controls and interfaces as one complete package.
Why moonpool doors
Engineered for performance and protection
01
Lower fuel costs
Closing the moonpool during transit reduces hydrodynamic drag, directly cutting fuel consumption and emissions.
02
Flexible configurations
Single, double or multiple door configurations with hydraulic cylinders, locking pins and sensors - matched to the vessel.
03
Class certified
Designed and built to leading classification standards - DNV, ABS, Lloyd’s Register, RINA, Bureau Veritas and more.
04
Built to fit
Every door is engineered in-house to the vessel’s exact moonpool geometry and arrives ready for installation, with seawater-resistant coating.
Complete moonpool package
More than the door structure
Parosha can act as the technical package partner for the complete operating system. The exact make and supply boundary are selected for each vessel and project.
Hydraulics & cylinders
Project-selected actuation, manifolds, accumulators or power functions matched to the operating sequence.
Angle Transmitters & controls
Supplied position sensing, status feedback and control interfaces integrated into the package.
Rubber fenders & system parts
Supplied fenders, buffers and other specialist components selected for contact loads and system geometry.
Applications
Where moonpool doors deliver
Drillships & well-intervention vessels
Protect the well and reduce transit drag between sites.
Construction & support vessels
Seal the moonpool for safer deck operations and transit.
Cable- & pipe-lay vessels
Cut fuel consumption on long relocation voyages.
From our workshop
Built, then fitted to the vessel
Every moonpool door is fabricated in-house and trial-fitted before it goes to the yard. These images show a recent double-leaf door from fabrication through to installation.
ROV Hangar Doors
Secure the ROV hangar at both port and starboard, protecting equipment during launch, recovery and transit.
Moonpool Hatches
Moonpool hatch covers that seal the top of the moonpool, keeping the deck safe, dry and fully operational.
Marine Roller Shutter Doors
Versatile, reliable marine roller shutter doors for closing openings on ships and offshore vessels.
Ready to specify your moonpool door?
Send us your vessel details and moonpool geometry - our engineers will design a door built to fit.