Mixed Refrigerant R404A
Brand: KJS
Product origin: China
Delivery time: About 30days after down payment
1.R404A refrigerant is a third-generation HFC non azeotropic mixture refrigerant, composed of precise ratios of R125 (44%), R143a (52%), and R134a (4%),
2.As a classic alternative to R502 and R22, refrigerant R404A has long dominated the field of commercial refrigeration at medium and low temperatures, and is known as the "frozen blood" of the cold chain industry.
3.The core advantage of refrigerant R404A lies in its zero ozone depletion potential (ODP=0), which fully complies with the environmental requirements of the Montreal Protocol. At the same time, its thermal and physical properties are highly matched with R502, achieving a smooth transition for existing equipment.
Key technical characteristics
Physical and chemical properties: Refrigerant R404A is a colorless and odorless gas at room temperature, and a colorless and transparent liquid under its own pressure. Its standard boiling point is -46.5 ℃, critical temperature is 72 ℃, critical pressure is 3688.7kPa, liquid density is 1.045g/cm ³ at 25 ℃, and vapor pressure is 1.25MPa;
Refrigeration performance: The refrigerant R404A has an excellent ratio of refrigeration capacity to energy efficiency, and performs stably in the low temperature range of -40 ℃ to 0 ℃. It is suitable for various direct expansion refrigeration systems and meets harsh refrigeration requirements;
Safety level: Refrigerant R404A complies with ASHRAE A1 safety classification (highest level), has non combustible and low toxicity characteristics, is harmless to human health, and is suitable for long-term use in commercial and industrial scenarios;
Compatibility: The refrigerant R404A is perfectly compatible with polyether ester (POE) lubricating oil and can be directly used for the initial installation or maintenance of the original R502 equipment without the need for significant system modifications.
Core application areas
Commercial refrigeration: retail terminal cold chain equipment such as supermarket display cabinets, convenience store refrigerators, and commercial freezers;
Industrial refrigeration: industrial low-temperature production lines, large cold storage facilities, and refrigeration condensing units;
Transport refrigeration: transportation refrigeration equipment such as refrigerated trucks and cold chain ships;
Special refrigeration: food freezing processing equipment, marine refrigeration systems, low-temperature experimental equipment.
Technical Specifications Table
project numerical value
chemical composition R125/R143a/R134a（44%/52%/4%）
molecular weight 97.60 g/mol
Ozone Depletion Potential (ODP) 0
Global Warming Potential (GWP) 3922 (IPCC Standard 4)
Standard boiling point (101.3kPa) -46.5℃
critical temperature 72.4℃
critical pressure 3688.7 kPa
Liquid density (25 ℃) 1.045 g/cm³
Water solubility (25 ℃) 0.070 g/100g water
Safety Level (ASHRAE) A1 (non combustible, low toxicity)
Packing Specification 10.9kg disposable steel cylinder/ISOTANK
Safety storage, transportation and operation specifications
Storage requirements: Refrigerant R404A should be stored in a cool and ventilated place, away from direct sunlight, and the ambient temperature should not exceed 40 ℃; Keep away from sources of fire and heat, and store in isolation from oxidants and flammable materials;
Transportation precautions: R404A refrigerant steel cylinders are pressurized containers, and should be handled with care to prevent valve damage during transportation; Strictly comply with the transportation regulations for high-pressure vessels;
Operation protection: Wear protective goggles, low temperature resistant gloves, and protective clothing; Avoid direct contact of liquids with the skin (which may cause frostbite);
Emergency response:
Inhalation overdose: Move to a place with fresh air, maintain unobstructed breathing, and seek medical attention if necessary;
Skin contact: Immediately rinse with warm water for 15 minutes. If frostbite occurs, seek medical attention promptly;
Leakage treatment: evacuate irrelevant personnel, ventilate, and use spray water to cool containers to prevent explosion.
