The WAFAB WHRV5388-134A is a refrigerant product containing HFC-134a (1,1,1,2 Tetrafluoroethane), a nonflammable, zero-ODP refrigerant engineered for demanding thermal management applications across automotive, commercial, and industrial sectors. This chemical refrigerant delivers consistent thermodynamic performance with a molecular weight of 102.03 g/mol and operates across a wide temperature envelope, making it suitable for both mobile and stationary cooling systems.
Technical Specifications
• Chemical Designation: 1,1,1,2 Tetrafluoroethane (CH₂FCF₃)
• Molecular Weight: 102.03 g/mol
• Boiling Point: −25.9 °C (−14.62 °F)
• Freezing Point: −96.6 °C (−141.88 °F)
• Critical Temperature: 101.06 °C (213.91 °F)
• Critical Pressure: 4059 kPa
• Critical Density: 511.9 kg/m³
• Liquid Density: 1207.0 kg/m³
• Vapor Density at Boiling Point: 5.26 kg/m³
• Heat of Vaporization (at boiling point): 216.98 kJ/kg
• Liquid Heat Capacity: 1.425 kJ/kg·K
• Vapor Heat Capacity: 0.851 kJ/kg·K
• Vapor Pressure: 665.0 kPa
• Liquid Thermal Conductivity: 0.081 W/m·K
• Vapor Thermal Conductivity: 0.0138 W/m·K
• Liquid Viscosity: 197.9 μPa·sec
• Vapor Viscosity: 11.8 μPa·sec
• Volatility: 100% by volume
• Water Solubility: 0.15 wt.%
• Water Solubility in HFC-134a: 0.11 wt.%
• Autoignition Temperature: 770 °C
• Ozone Depletion Potential: 0 (ODP-R11=1 baseline)
• Safety Classification: A1 (nonflammable at 1 atm, 18 °C)
– Key Features
• Zero ozone depletion potential—environmentally compliant
• Nonflammable at standard atmospheric conditions
• High heat of vaporization supports efficient cooling cycles
• Low water solubility minimizes moisture contamination risk
• Compatible with PAG and polyol ester lubricants
• Storage limitation: do not exceed 52 °C (125.6 °F) to prevent over-pressurization
– Typical Applications
• Automobile air-conditioning systems
• Residential and commercial refrigeration
• Commercial and industrial air-conditioning
• Thermoplastic and thermoset foam blowing (CFC-12/HCFC replacement)
• Pharmaceutical inhalers
• Aerosol propellant applications
– Compatibility & Integration
Lubricant compatibility extends to polyalkylene glycol (PAG) and polyol ester formulations. Cylinder handling requires protection from direct sunlight and temperature control. Vapor release hazard: vapors concentrate near floor level and displace oxygen—area evacuation and ventilation required. Employ electronic leak detectors for pinpointing and continuous monitoring.
