Marine R404a Refrigerant Gas Key Specifications:
- Chemical Composition: HFC blend (R-125/143a/134a)
- Grade: A1 (non-flammable, low toxicity)
- Boiling Point: -46.5°C (-51.7°F) at 1 atm
- Critical Temperature: 72.1°C (161.8°F)
- Critical Pressure: 37.3 bar (541 psi)
- Density (Liquid, 25°C): 1,045 kg/m³
- Viscosity (Liquid, 25°C): ~0.15 mPa·s
- Buoyancy: Heavier than air (vapor density ~3.3)
- Ozone Depletion Potential (ODP): 0
- Global Warming Potential (GWP): 3,922
- Material Compatibility: Compatible with POE oils, metals (copper, steel, aluminum), but not with natural rubber
- Cylinder Sizes: Common marine sizes include 10kg, 20kg, 50kg, and ISO containers
- Operating Pressure Range: High-pressure refrigerant (discharge ~20-30 bar)
- ASHRAE Safety Classification: A1
- Auto-Ignition Temperature: >600°C
- Solubility in Water: Low (hydrolysis-resistant)
- Typical Marine Applications: Low/medium-temperature refrigeration systems, fishing vessels, cargo holds
