Product Description

Features

• • Stainless steel upper coaming ring at seal area for corrosion resistance.
  • Hand wheel operated sealing mechanism.
  • Large swivel arm for easy movement of hatch cover.
  • Neoprene Gasket.

Feature Description
Optional Ullage or Sight-Glass available upon request welded to hatch cover.
Other gasket materials available.

Application
Expansion domes are typically found on tank barges. They are commonly used to access cargo compartments for venting, filling, and inspecting.

Material
Steel (ASTM A36) + 304 Stainless Steel
Painted Primer Grey

Model Number	Part Number	Description	Weight Total Lbs (Kgs.)
StormFast-450-3624-SG	03800-141B	36×24 Expansion Dome w/ Sight Glass	828 (376)
StormFast-450-4224-SG	03800-141A	42×24 Expansion Dome w/ Sight Glass	1012 (459)

Product Description

Features

• • StormFast-464-5 Raised Watertight Hatch + StormFast-144-5 Ullage welded to the top of the Trunk.
  • Tumble Bolts – Bronze
  • Dog Handles – Steel
  • Gasket – Nitrile

Feature Description
Other gasket material available upon request.
Various hardware options available:
– Steel, Stainless Steel, & Bronze Dog Handles (available with or without grease fittings).
– Bronze & Stainless Steel Tumble Bolts.
– Lug Bolts and nuts made from dissimilar metals to prevent galling and corrosion.
Flame screens available upon request (sold separately).

Application
Expansion trunks are typically found on tank barges. They are commonly used to access cargo compartments for venting, filling, and inspecting.

Material
Steel (ASTM A36)
Painted Primer Grey

Model Number	Part Number	Description	Weight Total Lbs (Kgs.)
StormFast-470	03800-140A	42×24 Expansion Trunk w/ StormFast-174-5 / 464-5	540 (245)