Commonly used freon refrigerants are R 12, R22, R502, R 134 1a, because other types of refrigerants have been stopped or disabled. There is no explanation here.
Freon 12(CF2CL2, R 12): It is one of the widely used freon refrigerants, mainly used in small and medium-sized grocery stores, household refrigerators, water and road refrigeration devices. R 12 has good thermal performance and low refrigeration pressure. The air cooling or natural condensation pressure is about 0.8- 1.2kPa, and the standard evaporation temperature of R 12 is -29℃, so it is a medium temperature refrigerant. It can be used in small and medium-sized piston compressors to obtain a low temperature of -70℃. A large centrifugal compressor can obtain a low temperature of -80℃. In recent years, R 134a has become an alternative refrigerant for refrigerators.
22(CHF2CL (R22) is a widely used freon refrigerant, mainly used in household air conditioners and low-temperature refrigerators. The thermodynamic properties of R22 are similar to those of ammonia. The standard gasification temperature is -40.8℃, the condensation pressure is usually less than 1.6MPa, R22 is non-combustible and non-explosive, and it is safer and more reliable than ammonia in use. The unit volume of R22 is about 60% higher than that of R 12, and the refrigeration capacity and saturation pressure at low temperature are higher than that of R 12 and ammonia water. In recent years, R 134a has been used as refrigerant for large air-conditioning chillers.
Freon 502(R502):R502 is a * * boiling solution composed of R 12 and R22, with the percentages of 5 1.2% and 48.8% respectively. Compared with R 1 15 and R22, R502 has better thermodynamic properties and is more suitable for low temperature. The standard evaporation temperature of R502 is -45.6℃, and the normal working pressure is close to R22. Under the same working conditions, the refrigerating capacity per unit volume is greater than R22, but the exhaust temperature is lower than R22. R502 is used in fully enclosed, semi-enclosed or some medium and small refrigeration units, and its evaporation temperature can be as low as -55℃. R502 is widely used in refrigerators.
Lyons 134a(C2H2F4, R 134a): It is a relatively new refrigerant with an evaporation temperature of -26.5℃. Its main thermodynamic properties are similar to those of R 12, and it will not destroy the ozone layer in the air. It is an environmentally friendly refrigerant advocated in recent years, but it will cause greenhouse effect. It is an ideal alternative refrigerant for R 12.
Environmental protection refrigerants generally have the following types.
R- 134a (tetrafluoroethane) refrigerant. ※
R 134a is one of the main refrigerants recognized internationally to replace R 12. It is usually used in automobile air conditioning, commercial and industrial refrigeration systems and as a foaming agent in the production of hard plastic insulation materials. It can also be used to prepare other mixed refrigerants, such as R404A and R407C.
Main uses: mainly used as refrigerant to replace R 12, widely used in automobile air conditioning and refrigerator refrigeration.
Packaging: steel cylinder packaging, 13.6kg/ bottle, 400kg/ bottle, 1000kg/ bottle, ISO cans.
R-410a refrigerant ※
Physical and chemical characteristics: R4 10A is a chlorine-free and non-boiling mixed refrigerant of halothane at normal temperature and pressure, and it is colorless gas. Compressed liquefied gas is used for steel cylinder storage. Its ODP is 0, so R4 10A is an environmentally friendly refrigerant, which will not destroy the ozone layer in the atmosphere.
Main uses: R4 10A is mainly used to replace R22 and R502. It is clean, low toxic, nonflammable and has good refrigeration effect. Widely used in household air conditioners, small commercial air conditioners, household central air conditioners, etc.
Packaging: steel cylinder packaging, 1 1.3kg/ bottle, 400kg/ bottle, 1000kg/ bottle, ISO cans.
R-407c refrigerant ※
Physical and chemical properties: R407C is a chlorine-free halothane non-boiling mixed refrigerant at normal temperature and pressure. It is a colorless gas, which is a compressed liquefied gas stored in steel cylinders. Its ODP is 0, so R407C is an environmentally friendly refrigerant that does not destroy the atmospheric ozone layer.
Main uses: R407C is mainly used to replace R22. It is clean, low toxic, non-flammable and has good refrigeration effect. Widely used in household air conditioners and small and medium-sized central air conditioners.
Packaging: steel cylinder packaging, 1 1.3kg/ bottle, 400kg/ bottle, 1000kg/ bottle, ISO cans.
R4 17a refrigerant
Physical and chemical properties: R4 17A is a chlorine-free halothane non-boiling mixed refrigerant at normal temperature and pressure. It is a colorless gas, which is a compressed liquefied gas stored in steel cylinders. Its ODP is 0, so R4 17A is an environmentally friendly refrigerant that does not destroy the atmospheric ozone layer.
Main uses: R4 17A is mainly used to replace R22, which is clean, low toxic, nonflammable and has good refrigeration effect. Used for heat pump (replacing R22 at the initial stage of OEM installation) and air conditioner (replacing R22 after sale).
Packaging: steel cylinder packaging, 1 1.3kg/ bottle, 400kg/ bottle, 1000kg/ bottle. Can also provide ISO containers or transportation according to user requirements; Packing category 2.2.
R-404a refrigerant ※
Physical and chemical characteristics: R404A must not be a chlorine-free non-boiling refrigerant, but a colorless gas at normal temperature and pressure, and the cylinder is compressed liquefied gas during storage. Its ODP is 0, so R404A is an environmentally friendly refrigerant, which will not destroy the ozone layer in the atmosphere.
Main uses: R404A is mainly used to replace R22 and R502. It is clean, low toxic, non-flammable and has good refrigeration effect, and is widely used in medium and low temperature refrigeration systems.
Packaging: steel cylinder packaging, 10.9kg/ bottle, 1000kg/ bottle.
R-507 refrigerant ※
Physical and chemical characteristics: R507 is a chlorine-free boiling refrigerant, colorless gas at normal temperature and pressure, compressed liquefied gas, and stored in steel cylinders. Its ODP is 0, so R507 is an environmentally friendly refrigerant, which will not destroy the ozone layer in the atmosphere.
Main uses: R507 is mainly used to replace R22 and R502. It is clean, low toxic, non-flammable and has good refrigeration effect. Widely used in medium and low temperature refrigeration systems.
Packaging: steel cylinder packaging, 1 1.3kg/ bottle, 400kg/ bottle.
R-23 (trifluoromethane) refrigerant ※
Physical and chemical properties: R23 (trifluoromethane, Freon 23), atmospheric boiling point -82. 1℃, freezing point-155.2℃, liquid density (25℃)0.67kg/L, critical density 0.525kg/L, critical pressure 4.83MPa, ozone consumption.
Main uses: Trifluoromethane, also known as HFC-23, is a high-pressure liquefied gas, which can replace CFC- 13 as refrigerant. At the same time, it is an ideal substitute for halon 130 1, which has the characteristics of cleanliness, low toxicity and good fire extinguishing effect.
Packaging: high-pressure steel cylinder packaging, 9.08kg/ bottle, 30kg/ bottle.
R-508a refrigerant ※
Physical and chemical characteristics: R508A is a chlorine-free boiling refrigerant, colorless gas at normal temperature and pressure, compressed liquefied gas, and stored in steel cylinders. Its ODP is 0, so R508A is an environmentally friendly refrigerant, which will not destroy the ozone layer in the atmosphere.
Main uses: R508A is mainly used to replace R 13, R23 and R503. It has the characteristics of cleanliness, low toxicity, incombustibility and good refrigeration effect. Widely used in ultra-low temperature refrigeration systems, such as medical refrigeration and scientific research refrigeration.
Packaging: high-pressure steel cylinder packaging, 5kg/ bottle, 9.08kg/ bottle.
R-508b refrigerant ※
Physical and chemical properties: R508B is a chlorine-free boiling refrigerant. It is colorless gas at normal temperature and pressure, and compressed liquefied gas when the steel cylinder is stored. Its ODP is 0, so R508B is an environmentally friendly refrigerant, which will not destroy the ozone layer in the atmosphere.
Main uses: R508B is mainly used to replace R 13, R23 and R503. It is clean, low toxic, non-flammable and has good refrigeration effect. Widely used in ultra-low temperature refrigeration systems, such as medical refrigeration and scientific research refrigeration.
Packaging: high-pressure steel cylinder packaging, 5kg/ bottle, 9.08kg/ bottle.
R- 152a (difluoroethane) refrigerant. ※
Physical and chemical properties: HFC- 152a (1, 1- difluoroethane CH3CHF2), molecular weight 66. 1, boiling point -24.7℃, critical temperature13.5℃.
Main uses: mainly used as refrigerant, foaming agent, aerosol and cleaning agent, and also an important part of mixed working medium.
Packaging: steel cylinder packaging, 10kg/ bottle, 640kg/ bottle.