Marine Heat Exchangers

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SALINE RESISTANT METALLURGY

Sea-Water Cooled Marine Heat Exchangers

Custom-engineered horizontal shell and tube heat exchangers designed to survive aggressive maritime environments. Fabricated with corrosion-resistant cupro-nickel or solid titanium tube bundles, these units are optimized to cool shipboard engines, hydraulic gearboxes, and jacket-water systems cleanly and reliably.

Specification Parameter Value / Standard Configuration
Exchanger Design Marine Shell & Tube (Removable Bundle)
Tube Metallurgy 90/10 Cupro-Nickel, 70/30 Cupro-Nickel, or Solid Titanium
Shell Material Heavy-Duty Cast Iron, Gunmetal, or Coated Carbon Steel
Fluid Compatibility Sea Water, Fresh Water, Lube Oil, Jacket-Water, Glycol
End Covers Removable Cast Iron or Bronze (For easy tube rod-out)

Sea-Water Corrosion Mitigation & Maritime Serviceability

Saline Corrosion Prevention (Premium Alloys): Seawater contains high concentrations of chloride and active marine micro-organisms, which cause aggressive pitting, galvanic corrosion, and rapid degradation in standard copper or carbon steel tube bundles. We fabricate our marine heat exchangers using premium-grade 90/10 Cupro-Nickel or solid Titanium tube bundles. This material selection guarantees absolute chemical compatibility and a long operational lifespan on the open ocean.

Easy Shipboard Maintenance & Removable Bundles: Maritime cooling systems are subjected to constant fouling from salt crystallization and biological marine growth. Our marine heat exchangers are engineered with fully removable tube bundles and cast-iron end covers. This allows vessel engineers to extract the entire bundle easily, enabling high-pressure mechanical descaling and tube rod-out cleanings during scheduled harbor stops.

Rigorous Double-O-Ring Sealing Safeguards: Protecting high-value shipboard fluids like engine jacket water or gearbox lubricating oil from saltwater contamination is critical. Our marine shell and tube designs feature robust double-O-ring bypass seals. This ensures that any seawater bypass is vented externally through leak indicator ports, rather than entering closed engine or lubrication loops.

ENGINEERING FEATURES

Calculated and Fabricated for Demanding Thermal Loops

Every marine exchanger is modeled with specific thermodynamic profiles. Below are the key engineering specifications built into our designs:

Cupro-Nickel 90/10

Our standard marine-spec cupro-nickel tubes offer natural resistance to seawater corrosion, preventing galvanic erosion.

Removable End Covers

End covers are easily unbolted, allowing engineers to clean and inspect inner tubes without disconnecting ship piping lines.

ASME & Marine Codes

Engineered strictly in compliance with TEMA Class C, ASME Section VIII, and marine classification society guidelines.