Refrigerant R450a

  • REFRIGERANT R450A

    Medium pressure, low-GWP, high efficiency, and non-flammable refrigerant and an energy-efficient alternative to R134a

    Refrigerants

LOW-GWP REFRIGERANT FOR NEW AND RETROFIT SYSTEMS

R450a is a zeotropic blend of refrigerants R134a and R1234ze designed to serve as an alternative to R134a and offering similar performance and a reduction in global warming potential of almost 60%. R450a is compatible with most common materials, can be charged from either liquid or vapor phase, and features lower discharge temperatures compared to refrigerant R134a.

Refrigerant R450a is a close substitute in a wide range of new and retrofit applications including refrigerated transport, water coolers, cold storages, industrial process refrigeration, reciprocating, centrifugal, screw and scroll chillers, and industrial air conditioning systems.

APPLICATIONS, BENEFITS, AND PERFORMANCE

R450a refrigerant

APPLICATIONS:

  • Air-cooled and water-cooled chillers
  • Heat pumps
  • High stage of carbon dioxide cascade systems
  • Medium temperature direct expansion refrigeration

PERFORMANCE RELATIVE TO R134A:

  • Demonstrates 87% capacity compared to R134a refrigerant
  • 100% efficiency compared to R134a​

ENVIRONMENTAL BENEFITS:

  • Offers almost 60% GWP reduction compared to R134a
  • Safe, non-toxic and non-flammable (ASHRAE A1 safety classification)

R450A PROPERTIES

ASHRAE number

R450a

Composition

R134a/R1234ze

Boiling point @ 1atm [°C]

-23.1

Critical temperature [°C]

104.4

Ozone depletion potential

0

GWP AR5

547

ASHRAE safety class

A1

Temperature glide [K]

0.4

Molecular weight [g/mol]

109.0

Liquid density @ 0.0°C [kg/m³]

1257.7

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