5R503

Critical Density (Lb/Ft³) :

34.4

Hazmat :

Yes

Branch Pickup Only :

No

manufacturerName :

National Refrigerants, Inc.

Regional Item :

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Web Description :

R503 refrigerant, CFC, 5 lb. cylinder

Liquid Density (20 F, Lb/Ft³) :

66.3

Specials Description :

R503 refrigerant, CFC, 5 lb. cylinder

Container Size :

5 Lb Cylinder

longDescription :

R-503:
Very low temperature refrigeration systems typically operate in two or more stages (cascade type systems). It would be nearly impossible to achieve low temperatures in a single stage with an inexpensive compressor. Older cascade systems had a low temperature stage which used a lower boiling point gas, such as R-13 or R-503, and a high stage which traditionally used R-12, R-22, or R-502. Hydrocarbons are often added to very low temperature systems to make sure the oil stays fluid and returns from the very cold evaporator.
R-503 can be replaced by R-508B.

Molecular Weight :

82.25

Refrigerant :

R503

Specials :

No

ASHRAE Standard 34 Safety Rating :

A1

LogoImage :

L/Logo_nri.jpg

SKU :

5R503

Critical Pressure (psia) :

618.6

Weight :

14.0 lb

Sort :

2.0

Vendor Name:

National Refrigerants, Inc.

URI Part Number:

5R503

Composition (Weight %):

R-23/R-13 (40.1/59.9)

Critical Temperature ( Deg. F):

65.2

Shipping Weight (Lbs):

14.00

Weight (Lbs):

14.00

R-503:
Very low temperature refrigeration systems typically operate in two or more stages (cascade type systems). It would be nearly impossible to achieve low temperatures in a single stage with an inexpensive compressor. Older cascade systems had a low temperature stage which used a lower boiling point gas, such as R-13 or R-503, and a high stage which traditionally used R-12, R-22, or R-502. Hydrocarbons are often added to very low temperature systems to make sure the oil stays fluid and returns from the very cold evaporator.
R-503 can be replaced by R-508B.