Marine access systems

Moonpool Hatches

Deck-level moon pool hatch covers close the top of the moonpool. They provide controlled access for cable laying, pipeline installation and subsea construction while keeping the working deck safe and operational.

Why moonpool hatches

Watertight integrity, deck-level safety

01

Watertight under pressure

Engineered to maintain watertight integrity under extreme pressure and withstand the impact of waves and currents.

02

Safe working deck

A closed hatch turns the moonpool area into usable, safe deck space during transit and standby.

03

Class certified

Designed and built to leading classification standards - DNV, ABS, Lloyd’s Register, RINA, Bureau Veritas and more.

04

Integrated operation

Hydraulic or mechanical operation, integrated with the vessel’s moonpool door and control systems.

Applications

Where moonpool hatches deliver

Cable-laying vessels & PLSVs
Deploy and retrieve subsea equipment through a sealable moonpool.
Drilling & construction vessels
Safe deck operations above a protected well.
Diving support & research vessels
Direct, controlled access to the underwater environment.
Moonpool hatch cover in closed position

Ready to specify your moonpool hatch?

Send us your moonpool dimensions and vessel details - our engineers will design a hatch built to fit.