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Refrigerant R 407 C Refrigerant R 407 C

Refrigerant R 407c Refrigerant            
            
Deskripsi            
Refrigerant R 407 C Refrigerant            
            
R407C is a colorless gas under ordinary temperature,and a colorless & transparent liquid under the pressure of itself,mixted by HFC-32, HFC-134a and HFC-125, and it is the long-term substitute for R22, used mainly in the air conditioner and non-certrifugal refrigeranting system.            
            
Specifications:             
            
Chemical formula            
R134a/R125/R32            
            
Molecular weight (g/mol)            
86.2            
            
Critical temperature (蚓)            
86.2            
            
Critical pressure (MPa)            
4.62            
            
Critical density (g/cm3)            
0.527            

 
Refrigerant  R 404 A Refrigerant R 404 A

Refrigerant R 404a

Deskripsi
Refrigerant R 404 A

refrigerant (R-404A) is a non-ozone depleting, near azeotropic blend of HFC refrigerants R-125, R-143a and R-134a.

Application:
R-404A is formulated to closely match the properties of R-502, making it useful for a variety of medium and low temperature refrigeration applications. R-404A has been approved by many refrigeration compressor and system manufacturers for use in new refrigeration equipment such as food display and storage cases, cold storage rooms, ice machines, transportation, and process refrigeration.

Properties & Performance:
R-404A is designed to meet the needs of many new and existing refrigeration systems. R-404A is near azeotropic HFC refrigerant blend rated A1 by ASHRAE (lowest levels of toxicity and flammability) having zero ozone depletion potential.

Lubrication:
R-404A is immiscible with the traditional lubricants used in R-502 systems. As such, the original oil should be replaced with POE when retrofitting to R-404A, and the presence of the old oil should be reduced to 5% or less of the original charge. Failure to do so may result in inadequate oil return or other system problems.

 
Refrigerant R 22 Refrigerant R 22

Refrigerant R 22



Deskripsi  :  Refrigerant R 22


HCFC-22 (also known as R-22) has been the refrigerant of choice for residential heat pump and air-conditioning systems for more than four decades. Unfortunately for the environment, releases of R-22, such as those from leaks, contribute to ozone depletion. In addition, R-22 is a greenhouse gas and the manufacture of R-22 results in a by-product (HFC-23) that contributes significantly to global warming. As the manufacture of R-22 is phased out over the coming years as part of the agreement to end production of HCFCs, manufacturers of residential air conditioning systems are offering equipment that uses ozone-friendly refrigerants. Many homeowners may be misinformed about how much longer R-22 will be available to service their central A/C systems and heat pumps. This fact sheet provides information about the transition away from R-22, the future availability of R-22, and the new refrigerants that are replacing R-22. This document also assists consumers in deciding what to consider when purchasing a new A/C system or heat pump, or when having an existing system repaired.

 
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