1.R134a
Refrigerant R134a is currently internationally recognized as one of the main refrigeration fluids that can replace R12. It is commonly used in vehicle air conditioners, commercial and industrial refrigeration systems, and as a foaming agent in the production of hard plastic insulation materials. It can also be used to configure other mixtures. Refrigerants, such as R404A and R407C, etc.
Main uses: It is mainly used as a refrigerant to replace R12, and is widely used in automobile air conditioners and refrigerator refrigeration.
2.R410A
Physical and chemical properties: At normal temperature and pressure, R410A is a chlorine-free fluoroalkyl non-azeotropic mixed refrigerant. It is a colorless gas and is a compressed liquefied gas stored in a cylinder. Its ODP is 0, so R410A is an environmentally friendly refrigerant that does not damage the ozone layer of the atmosphere.
Main uses: R410A is mainly used to replace R22 and R502. It has the characteristics of clean, low toxicity, non-flammability, and good cooling effect. It is widely used in household air conditioners, small commercial air conditioners, household central air conditioners, etc.
3.R404A
R404A is a non-azeotropic mixed refrigerant that does not contain chlorine. It is a colorless gas under normal temperature and pressure. It is a compressed liquefied gas stored in a cylinder. Its ODP is 0, so R404A is an environmentally friendly refrigerant that does not damage the atmospheric ozone layer.
Main uses: R404A is mainly used to replace R22 and R502. It has the characteristics of clean, low toxicity, non-flammability, and good refrigeration effect. It is widely used in medium and low temperature refrigeration systems.
4.R22
R22 (Freon22, difluorochloromethane, molecular formula CHClF2, molecular weight 86.47. R-22 is a colorless, almost odorless gas at room temperature. It is non-flammable, non-corrosive and has minimal toxicity. It can be liquefied into colorless and transparent gas under pressure. It is a liquid, HCFC type refrigerant. R-22 has high chemical stability and thermal stability, especially in the absence of moisture, and does not react with ordinary metals below 200°C in the presence of water. Acts slowly with alkalis but will cleave at high temperatures.