mainly applied in household air-condition , small and medium-sized unitary air conditions.
R - 134a refrigerant,ethane 1,1,1,2 - tetrafluoroethane. alias HFC134a, HFC - 134a refrigerant, four fluorine ethane, commodity names have Genetron 134a refrigerant
SUVA 134a refrigerant, KLEA 134a refrigerant . chemical name 1,1,1,2 - anti-sunction ethane, molecular formula CH2FCF3. Because R 134a refrigerant belong to HFC kind
material (not store (ODS Ozone depleting substance Substances) -not the Ozone layer, thus completely is the current world most countries recognition
and recommend the use of environmental-protection refrigerants, it is also the mainstream of environmental-protection refrigerants, widely used in new refrigeration and air conditioning equipment.
Physical Properties
Refrigerant name | R-134a |
Molecular weight | 102.0 |
Boiling point(1atm),°C | -26.2 |
critical temperature,°C | 101.1 |
critical pressure, kPa | 4070 |
saturation vapour pressure(25°C),kPa | 661.9 |
saturation vapour pressure(under boiling point,1atm),kJ/kg | 216 |
ODP | 0 |
GWP,100 yr | 1300 |
ASHRAE | A1(Non-toxic nonflammable) |
The stability testing data ( with metal and frozen oil)
Frozen oil | Mineral oil | Mineral oil | UCONRO-W- 6602(a) | Mobil EALArctic 32(b) | Castrol Icematic SW 100(b) |
Viscosity cSt(40°C) | 30.7 | 125 | 134 | 29.4 | 108.8 |
Refrigerant | R12 | R12 | R134a | R134a | R134a |
Conclusion: pure oil/refrigerants copper, Iron aluminum | —— 4 2 3 2 | —— 4 2 3 2 | 0 0 0 0 0 | 0 0 0 0 0 | 0 0 0 0 0 |
Viscosity changes %purity %with refrigerant |
ND ND |
ND ND |
<1 -12.7 |
-3.1 -36.2 |
4.3 -27.1 |
Decomposition product analysis HFC-134a(pp) Fluorid(ppm) |
ND ND |
ND 420 |
<7 <0.7 |
<3 —— |
<0.3 <7 |
Main application:
R - 134a most widely used in low-temperature environmental protection refrigerants,
because of HFC - 134a good comprehensive performance, makes it a very effective and safe CFC - 12 substitute, widely used in using R - 12 (R12 and Freon 12, F - 12,
CFC - 12, Freon 12, two chlorine two fluorine methane) of refrigerant most areas,
including: refrigerators, freezers, water machine, automobile air conditioners, central
air conditioning, dehumidifier, the cold storage, the commercial refrigeration, ice water machine,
ice cream machine, froze condensing units in refrigeration equipment and so on,
and can also be used in aerosol propellant, medical aerosol, insecticides self-spay gun, polymer (plastic), and physical foaming agent magnesium alloy protection gas, etc.
Although is refrigerant substitution freon refrigeration equipment on new R12 the most popular
choice, but because of R12 phychemical properties, with theoretical cycle performance and
compressor oil etc are different, so as to fist reload R12 refrigerants into refrigeration equipment,
if required, after-sales maintenance to add or replace refrigerants, still can add R12,
usually cannot directly to replace R12 (i.e. don't usually can change hematic type replacement).
Refrigerant packaging
One-time tin packing: 300 grams/teams, with 30 / boxes,
Disposable cylinder packing: 13.6 kg/bottle;
Reusable packaging packaging (need recycling cylinder cylinder) : 400kg/bottle, 800kg/bottle.
Storage, transportation
R - 134a refrigerant pressure vessel, cylinder for belt should be stored away from
fire and heat source, prevent sun direct insolate, usually chu fang in cool, dry and ventilated
warehouse in, Handling should light, light discharge, prevent cylinders and valves and other
accessories damaged.
