Marine hydrogen cylinders are high-pressure storage vessels designed for safe hydrogen transport and usage in marine environments. These gas systems include specialized valves, regulators, and safety features to handle hydrogen's unique properties. They are built to withstand harsh maritime conditions while ensuring leak-proof and efficient gas delivery.

Size: Typically ranges from 50 liters to 500 liters capacity.

Grade: High-pressure hydrogen storage, usually 350 bar or 700 bar.

Viscosity: Not applicable (gas storage).

Buoyancy: Neutral or slightly negative depending on material and design.

Material: Carbon fiber reinforced with polymer liner (Type IV) or aluminum with composite wrapping (Type III).

Operating Temperature: -40°C to +85°C.

Pressure Rating: 350 bar or 700 bar, compliant with ISO 15869 or similar standards.

Weight: Varies by size, typically 30-150 kg.

Corrosion Resistance: High, due to composite materials and protective coatings.

Safety Features: Pressure relief devices, thermal protection, and impact-resistant design.