2400 Series Round Liftout Hatches, 24", Aluminum Ring / Knife Edge Seal

Round hatch sizes 8", 12", and 15" are ideal for quick-acting access into shaft alleys for fish sorting, void inspection, ventilation and access to valving, piping, wiring, controls, and other areas where seaworthy security is required.
18", 20" and 24" round clear opening manhole-sized access hatches are ideal for entry and escape of all types, especially when a person must be able to pass through the opening.
Escape route applications, storage access, lazarette access, fish sorting, and many more applications are common installations.
An optional escape handle can be attached to the underside of the 18" and larger hatches if required.

• Utilizes a sealing pressure requirement formula which ensures proper sealing tension with the required number of dogs
• Stainless steel handle and round bar for trouble-free operation
• Sizes reflect size of opening
• Hatch covers are constructed of cast aluminum

Knife-Edge or Compression Sealing?
Compression Seal 2400 Series Hatches
These hatches have easy-to-clean spigots, feature long gasket life, and are economical to purchase.
• Aluminum Deck Rings are intended to be weld installed into aluminum decks and bolt installed into other deck materials.
• Steel Deck Rings are to be weld installed into steel decks only.
• Watertight seal to 30 foot intermittent head, continuous 10 foot head top-loaded pressure (on properly installed and adjusted hatch assemblies).
Knife-edge Seal 2400 Series Hatches
These hatches feature a coaming with drain gutter and an aggressive sealing rim edge. A drain fitting can be installed to minimize water from entering enclosure when hatch is initially opened.
• Aluminum Deck Rings are intended to be weld installed into aluminum decks and bolt installed into other deck materials.
• Steel Deck Rings are to be weld installed into steel decks only.