How to Differentiate Refrigerants Used in Cold Rooms
With the development of the refrigeration industry, refrigerant models continue to evolve. Understanding how to differentiate refrigerants used in Cold Rooms and Cool Rooms, and the requirements they must meet, is essential. Below is a detailed explanation to help you better understand these differences.
Commonly Used Refrigerants: R22 vs. R404A
Two frequently used refrigerants are R22 and R404A. While there are similarities between them, there are also notable differences.
1. Lubricants Used
A primary difference lies in the types of lubricants used. R22 refrigerant utilizes mineral oils, whereas R404A uses PVE (Polyvinyl Ether) ester lubricants. PVE esters have a higher affinity for water, resulting in relatively poorer dehydration properties. It is crucial to minimize exposure to outside air during use. If a can of refrigerant is not used entirely, ensure it is sealed properly to prevent leakage. To avoid chemical reactions with surrounding substances, keep refrigerants away from oxidizers or strong acids and bases. Store them in a well-ventilated, cool place.
2. Pressure Saturation and Expansion Valves
Under the same temperature conditions, R22 and R404A exhibit different pressure saturation levels. Consequently, the thermal expansion valves used with these refrigerants differ in their mechanisms and sealing materials. If using a thermal expansion valve, R404A refrigerant valves are more suitable.
3. Environmental Impact
In today’s environmentally conscious society, R404A, despite having slightly lower performance compared to R22, is favored because R22 can damage the ozone layer. R404A, on the other hand, is environmentally friendly and has the potential to replace R22 in the future.
4. Safety Precautions
For safety, take necessary precautions when handling refrigerants. Avoid direct contact with the skin, especially the eyes, to prevent injury.
If you have any questions or need further clarification about refrigerants used in Cold Rooms or Cool Rooms, feel free to contact us. Thank you for your attention!
We hope this information proves helpful to you. If you have any further questions, please feel free to contact our salesperson at 012-3868-210. Imax Refrigerator Malaysia offers various commercial chillers, refrigerator, chiller fridge, cold room & cool room, including convenience store chillers, supermarket chillers, restaurant and so on. We welcome you to visit us for your selection needs!
Imax Refrigerator Malaysia, a local manufacturer, offers a wide range of high-quality commercial refrigerators: Display Chiller, Display Freezer, Inverter Display Chiller, Inverter Display Freezer, Open Chiller, Stainless Steel Upright Chiller, Stainless Steel Upright Freezer, Stainless Steel Counter Chiller, Stainless Steel Counter Freezer, Solid Door Chest Freezer, Glass Top Chest Freezer, and other products. With 30 years of experience in manufacturing commercial refrigeration equipment, direct sales from manufacturers and nationwide warranty, the company’s products are favored by customers at home and abroad.
