R474B

R474B refrigerant

R474B is a mixed refrigerant made from R1132E and R1234yf, which are classified as HFOs (Hydrofluoroolefins). Unlike HFC (Hydrofluorocarbon) refrigerants, it has a significant feature of having a GWP (Global Warming Potential) of “0,” an indicator of its impact on global warming. This value indicates that it is an extremely environmentally friendly refrigerant.
Both R1132E and R1234yf, which constitute R474B, have low Global Warming Potentials (GWP) individually, making them less burdensome on the environment. By using these two components, R474B achieves the characteristic of having a GWP of 0. Additionally, R474B meets the conditions for specific inert gases, making it a highly safe refrigerant.
Furthermore, it is designed to be compatible with various containers such as FC2, FC3, and FC4 types, allowing for flexible handling and transportation on site.

Advantages of R474B Refrigerant

R474B, a next-generation refrigerant that combines environmental consideration with high practicality, boasts numerous advantages, including its high environmental performance, compatibility with existing equipment. As a result, it is not only environmentally friendly but also offers high convenience and cost performance in terms of implementation and operation, which has garnered significant attention.

Below, we will provide a detailed explanation of the specific benefits that R474B refrigerant offers.

Low environmental impact

R474B refrigerant is a next-generation refrigerant with exceptionally high environmental performance, featuring an Ozone Depletion Potential (ODP) of "0" and a Global Warming Potential (GWP) of "0". This makes it possible to minimize the negative impact on the environment, making it an extremely promising option from the perspective of combating global warming.

Highly compatible with existing equipment

R474B has high compatibility with existing cooling equipment. Additionally, since it allows for easy replacement (utilizing existing piping), benefits such as reduced installation time and cost savings can be expected. Furthermore, compared to HFC refrigerants (such as R410A and R32), it is designed to operate at lower working pressures, which helps to reduce the overall load on the cooling system.

Applications of R474B Refrigerant

Due to its excellent environmental performance and equipment compatibility, the adoption of R474B refrigerant is being considered primarily in the food distribution industry. It is seen as a practical option, especially for convenience stores and other businesses that need to review their equipment in response to increasingly stringent environmental regulations.

Global Laws and Regulations Regarding the Handling of R474B Refrigerant

Montreal Protocol

The Montreal Protocol is an international treaty aimed at gradually reducing and phasing out the use of substances that deplete the ozone layer as part of efforts to protect the global environment. R474B has a Global Warming Potential (GWP) of "0" and is not subject to regulation under the Kigali Amendment to the Montreal Protocol.

EU F-Gas Regulation

In the EU, regulations on fluorinated gases (F-gases) have been strengthened, with the "F-Gas Regulation" at the core of these efforts. Due to its GWP of "0," R474B may be exempt from many of the restrictions and phased reductions under the EU F-Gas Regulation. However, it is necessary to check the latest information from national regulatory authorities and relevant organizations to determine whether R474B is explicitly listed and to understand the specific provisions regarding its use.

EPA SNAP

The United States Environmental Protection Agency (EPA) evaluates substances that can replace ozone-depleting substances for specific applications through the "SNAP Program" and lists them as "acceptable substitutes." This evaluation is conducted based on a multifaceted analysis of factors such as human health and environmental impact. The evaluation criteria include the toxicity of the substance, its flammability, impact on atmospheric environment, health risks to workers and consumers, and potential adverse effects on ecosystems. Although R474B has a GWP of "0," its specific approval status under the EPA SNAP program is not clear at this time.

Summary

R474B refrigerant is a next-generation refrigerant with a Global Warming Potential (GWP) of "0," making it extremely environmentally friendly. It is characterized by its high safety and excellent compatibility with existing equipment. Additionally, it boasts high energy efficiency, eliminates the need for regulatory compliance related to refrigerant leakage, and contributes to reduced management costs and installation expenses. Currently, there are movements toward practical implementation, particularly in the food distribution industry.

R474B refrigerant, which significantly reduces environmental impact while also offering practicality and safety, is expected to play an increasingly important role as a refrigerant aimed at realizing a sustainable society.