HFC-R422B Refrigerant (Drop-in Replacement for R22 Systems)
HFC-R422B is a zeotropic HFC blend specifically formulated as a direct drop-in replacement for R22 in existing refrigeration systems. With zero ODP (Ozone Depletion Potential) and a GWP of 2,539, it provides an environmentally improved alternative while maintaining similar operating characteristics to R22, requiring minimal system modifications.
Key Technical Advantages:
Near-identical operating pressure to R22 enables seamless retrofit
POE oil compatible - can be used with existing mineral oil in many systems
Non-flammable formulation (ASHRAE A1 safety classification)
Wide temperature application range (-50°C to +10°C evaporating temperature)
Key Specifications:
| Parameter | Specification |
| Molecular Weight | 108.5 |
| Boiling Point (1atm,°F) | -42.4 |
| Critical Temperature (°F) | 181.8 |
| Critical Pressure (psia) | 574.75 |
| Purity % ≥ | 99.8 |
| Moisture ppm ≤ | 10 |
| Acidity ppm ≤ | 1 |
| Vapor Residue ppm ≤ | 100 |
| Ozone Depletion Potential | 0 |
| Global Warming Potential | 2526 |
Industry-Standard Applications:
Direct expansion refrigeration systems (retrofitted R22 systems)
Commercial refrigeration systems (walk-in coolers, display cases)
Industrial process cooling systems
Transport refrigeration units
Ice making machines
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