HFC - R422d
A. Product introduction
Product name: R422D
Product categories: HFC
Chemical composition: five four fluorine fluorine ethane/ethane/isobutane mixture
Security levels: A1 non-toxic, non-combustible
Packing specification: 11.3 KG / 25 lb recycling cylinder
2. Physical properties and quality indicators
Product name:
Mixed refrigerant R422d
Product physical properties:
Molecular weight;
109.94
Boiling point, ° C
46.2 ° C to 41.5 ° C
The critical temperature, ° c.
79.57
Critical pressure, Mpa
3.905
The critical density (kg/m3)
0.529
The ODP
0
GWP
0.264
Packing specification:
Disposable cylinder 11.3 KG / 25 lb, tanks
Quality indicators:
Purity, %
99.8 or higher
Moisture, PPm
10 or less
Acidity, PPm
1 or less
Evaporation residue, PPm
100 or less
appearance
Colorless gas
smell
No odor
USES:
Can replace R22
2. Product details:
R422D is a simple to use, the ODP zero (ozone depletion potential) of HFC refrigerants, can directly replace R - 22 at moderate temperature in direct expansion (DX) refrigeration equipment, including business systems, supermarket and fixed direct expansion (DX) type air conditioning equipment, including DX water-cooling chiller.
Product information
ASHRAE #
R422d
Replacement:
R - 22
Application:
Medium temperature and low temperature of commercial, industrial, direct expansion refrigeration system (DX), including:
1) catering refrigerated 2) supermarket display case 3) food storage and processing 4) ice machine
Household, commercial air conditioner (AC) :
Direct expansion (DX) type is the best choice for water-cooled machine
Advantages:
Provide a simple, efficient and economic directly replace - R - 404 - a, R - 507, R - 407 - c is easier to replace
HFC refrigerants, ODP value is zero
Compatible with traditional and new lubricating oil. In most cases, the process of replacement without replacement lubricating oil type
So far, all of the field test was successful, and without temperature control expansion valve replacement - may need to adjust the degree of superheat
Still can continue to use the existing equipment
Than the R - 404 - a and R - 404 had a 30% lower global warming potential (GWP)
After filling is used, if discover the refrigerant in the system capacity is insufficient, can be directly to make up, without row has complete pump refrigerant
Performance:
In most systems, has a very close to that of R - 22 refrigeration capacity and efficiency
Than R - 22 lower exhaust temperature, can prolong the life of compressor
Under the condition of low temperature, than R - 22 refrigeration capacity and efficiency as high as 14% up to 8%
In medium temperature conditions and the degree of supercooling is 6 ° C, the R422D refrigeration energy consumption about 5% less than R - 22, but the efficiency and R - 22
3. Product selection deadline:
R422D refrigerant ODP is zero, so is not affected by the Montreal "draft regulations obsolete material in control.
4. Lubricating oil use advice:
R422D compatible with traditional and new lubricating oil, including: mineral oil (MO), alkyl benzene lubricating oil (AB), and ester lubricant (POE). In most cases, the replacement process without replacement lubricating oil type.
