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25R403B

25R403B
R403B refrigerant, HCFC, 25 lb. cylinder
Vendor Name:
National Refrigerants, Inc.
URI Part Number:
25R403B
Vendor Part Number:
25R403B
Shipping Weight (Lbs.):
32
ASHRAE Standard 34 Safety Rating:
A1
Composition (Weight %):
R-22/290/218 (56 / 5 / 39)
Container Size:
25 Lb Cylinder
Critical Density (Lb/Ft³):
32.6
Critical Pressure (psia):
637.7
Critical Temperature ( Deg. F):
191.6
Liquid Density (20 F, Lb/Ft³):
72.8 (7OF)
Liquid Density (70 F, Lb/Ft³):
72.8
Molecular Weight:
103.25
Refrigerant:
R403B
Vapor Density (bp, Lb./Ft³):
0.35

R-403B:
Used to replace R-13B1 in single stage, lower evaporator temperature systems. With properties more similar to R-502 than R-13B1, the evaporator will operate in a vacuum when the low side temperature drops below -55°F. Existing R-13B1 systems that are retrofitted to R-403B will need the capillary tube replaced with a longer/more restrictive size. Similar lubricants can be used for R-403B, with any additives the manufacturer may recommend.

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