The Marine R22 refrigerant replacement involves substituting R22 with eco-friendly alternatives like R407C or R134a in refrigeration systems. This change complies with environmental regulations phasing out ozone-depleting substances. Retrofitting or upgrading systems ensures efficient and sustainable cooling performance.

Key specifications and technical properties of Marine R22 Refrigerant Replacement and Refrigeration Systems:

Size: Varies by system capacity (typically 1/4" to 1" tubing for piping).

Grade: A1 (non-flammable, low toxicity) for most replacements like R-404A, R-407C, or R-134a.

Viscosity: Low viscosity (similar to R22, ~0.2 cP at 25°C for alternatives).

Buoyancy: Slightly higher density than air (1.2–1.3 kg/m³ for common replacements).

Material: Compatible with copper, aluminum, and steel; may require POE oil for lubrication.

Operating Pressure: Medium to high (varies by replacement refrigerant, e.g., R-407C at ~15–30 bar).

Temperature Range: -40°C to +60°C (typical for marine applications).

Ozone Depletion Potential (ODP): 0 (for most R22 replacements).

Global Warming Potential (GWP): Varies (e.g., R-407C: ~1,700, R-134a: ~1,430).