8" Ullage Hatch with 12" Coaming Height (Model #SS144-08-12A) - Stainless Steel

The Model SS144-08-12A features an aggressive 12" vertical frame wall built specifically for extreme conditions. This extra-high profile ensures that the hatch sealing track remains high and dry, even when the surrounding deck is completely awash with heavy tracking, organic materials, or standing liquids. The non-reactive, polished stainless steel construction makes it exceptionally easy to sanitize, perfectly matching the rigorous cleanliness standards required for chemical or liquid-cargo transports.

Intended Use Cases:

• Corrosive Fluid Sounding: Ideal for quick-access monitoring of liquid chemical cargo, wastewater holdings, or fuel tanks using standard sounding tapes.
• Tank Sampling & Drop-Light Inspection: Allows swift personnel entry for fluid sampling or drop-light inspections of inner tank conditions without removing primary, heavy-duty manhole covers.
• Severe Salt-Spray Atmospheric Exposure: Built for open weather decks, swim platforms, and work zones constantly hammered by high-salinity marine elements.
• High-Water or Slurry Decks: Engineered for specialized areas on commercial fishing processing decks, liquid-handling flats, and heavy industrial vessels where low hatches are constantly buried under debris or sloshing process water.

Primary Industries & Vessel Types:

• Chemical & Liquid Product Barges: Heavily utilized on specialized transport vessels requiring strict cargo purity, zero fluid contamination, and high chemical resistance during sampling.
• Commercial Fishing & Processing Ships: Built to withstand aggressive organic compounds, saltwater scale, and daily high-pressure sanitation cleanings on active processing flats.
• Workboats & Fleet Transport: Provides an excellent zero-maintenance upgrade for fuel tank monitoring on harbor tugs, push boats, and high-speed crew transport vessels.
• Offshore Energy Platforms & OSVs: Ideal for extreme ocean states where regular steel hardware suffers rapid atmospheric pitting, rust, and mechanical seizing.
• Marine Infrastructure & Processing Plants: Suitable for auxiliary non-vessel installations including floating fuel docks, transfer terminals, and shore-side marine facilities.

• Premium Stainless Steel Construction: Cover plate, coaming frame, and latching hardware are crafted entirely from high-grade stainless steel to deliver extreme structural strength and superior resistance to chemical pitting.
• 8" Clear Opening Layout: Sized at a precise 8" diameter to comfortably accommodate standard inspection tools, sounding lines, and sampling canisters.
• Buna-N Chemical-Resistant Gasket: Features a premium Buna-N (Nitrile) rubber gasket track providing excellent sealing performance and broad resistance to fuels, oils, and marine chemicals.
• Industrial Clean Finish: Delivered fully finished and polished, offering a professional appearance that completely eliminates the need for painting, priming, or coating maintenance.

• Qualified Personnel Requirement: Installation must be performed by qualified marine welders or fitters in accordance with applicable classification society standards.
• Stainless Steel Welding Notice: Appropriate stainless steel welding procedures, including correct filler rods and shielding gases, must be utilized when integrating this frame into the deck structure to preserve its corrosion-resistant properties.
• Surface Preparation & Alignment: The coaming frame must be aligned true over a clean deck cutout and securely welded to prevent thermal warping or twisting of the perimeter sealing seat during fabrication.
• Debris Inspection: Prior to closing, ensure that the gasket track, coaming rim, and latch catches are completely free of weld spatter, slag, rust, or debris.