For professionals in the commercial and industrial refrigeration sectors, a thorough understanding of refrigerant technical specifications and handling protocols is fundamental to ensuring system reliability and safety. R404A, a widely adopted HFC blend, plays a critical role in many low and medium-temperature cooling applications. As a dedicated supplier, we provide R404A with stringent quality controls, but equally important is the knowledge of its properties and best practices for its use.

R404A is a zeotropic blend, meaning its components have different boiling points, which can result in a slight temperature glide during phase change. Its typical composition includes approximately 44% R-125, 52% R-143a, and 4% R-134a. This precise blend delivers the performance characteristics sought after in applications such as supermarket display cases, cold storage facilities, and refrigerated transport. Its molecular weight is 97.6, and it has a boiling point of -46.5°C at atmospheric pressure. Importantly, R404A has an ODP of 0, signifying no damage to the ozone layer, and a GWP that, while significant, has driven the development of lower-GWP alternatives.

From a safety and handling perspective, R404A is classified under ASHRAE safety class A1, denoting low toxicity and non-flammability. This makes it one of the safer refrigerants to handle, provided basic safety precautions are followed. When charging systems, it is crucial to charge R404A in its liquid phase to maintain the correct composition of the blend. Charging in gaseous form can lead to a change in the refrigerant's composition, impacting its performance and potentially damaging system components. Always ensure the system is properly evacuated to remove air and moisture before introducing the refrigerant.

Compatibility with lubricants is another key technical consideration. R404A requires polyolester (POE) oils for proper miscibility and oil return to the compressor. Mineral oils or alkylbenzene oils, often used with older refrigerants like R22, are not compatible and must be completely removed during retrofitting. Handling POE oils requires care, as they are hygroscopic (absorb moisture from the air), so containers should be sealed tightly after use and exposure to the atmosphere minimized. As your trusted supplier of R404A, we emphasize the importance of using compatible oils and following correct charging procedures.

Procurement professionals looking to buy R404A refrigerant will find various packaging options available from us, including high-pressure cans and disposable cylinders, designed for ease of use and safety. Understanding these technical details empowers users to operate their refrigeration systems efficiently and safely. For those seeking specific R404A price points or bulk purchase inquiries, reaching out to our sales team will provide comprehensive support and ensure you receive a high-quality, compliant product from a reliable manufacturer.