R1234ze Refrigerant

R-1234ze is a hydrofluoroolefin (HFO) refrigerant with ultra-low global warming potential, used as a sustainable alternative to R-134a in commercial and industrial cooling systems.

Applications

R-1234ze is widely used in air-cooled and water-cooled chillers, heat pumps, commercial refrigeration, supermarkets, and medium-temperature HVAC systems.

It is compatible with POE or PVE oils, but not with mineral oils, and requires ester-based lubricants in compressors.

Its lower operating pressure compared to R-134a makes it particularly suitable for centrifugal chiller designs, improving efficiency and reducing mechanical stress on compressors.

Performance Characteristics

While R-1234ze has slightly lower thermal capacity than R-134a, it requires about 9% less refrigerant for equivalent cooling performance.

Chillers using R-1234ze often operate at lower compressor speeds, which can enhance energy and reduce wear.

Its low GWP and energy efficiency make it a future-proof choice for compliance with environmental regulations such as the Montreal Protocol, Kigali Amendment, and EU F-Gas Regulations.

Summary

R-1234ze is a low-GWP, energy-efficient, and environmentally friendly refrigerant suitable for modern commercial and industrial cooling systems. Its adoption helps reduce carbon footprint, comply with stringent environmental regulations, and maintain high operational efficiency in chillers, heat pumps, and refrigeration systems