Modern compressors use what type of material at their shaft seals?

Modern compressors use what type of material at their shaft seals?

• A. Rubber and o-rings
• B. Copper and packing
• C. Plastic and foam
• D. Steel and gaskets

Answer: (B)

The use of copper and packing materials at shaft seals in modern compressors is advantageous due to their ability to withstand high temperatures and pressures that are often present during compressor operation. Copper is known for its excellent thermal conductivity and resistance to corrosion, making it ideal for use in the demanding environments found in compressors. Packing materials are typically made from durable substances that can form a tight seal around the shaft, preventing leaks of refrigerants or lubricants. This combination ensures effective sealing, reliable operation, and longevity of the compressor. While rubber and o-rings are common in certain sealing applications because they can provide good pliability and sealing characteristics, they may not withstand the extreme conditions found in all compressor applications as effectively as copper and packing. Plastic and foam are generally not suitable for high-pressure applications, while steel and gaskets might be more rigid and less effective in forming tight seals compared to the flexible nature of packing materials. Therefore, copper and packing are preferred for modern compressor shaft seals due to their superior performance in harsh operational conditions.

The use of copper and packing materials at shaft seals in modern compressors is advantageous due to their ability to withstand high temperatures and pressures that are often present during compressor operation. Copper is known for its excellent thermal conductivity and resistance to corrosion, making it ideal for use in the demanding environments found in compressors. Packing materials are typically made from durable substances that can form a tight seal around the shaft, preventing leaks of refrigerants or lubricants. This combination ensures effective sealing, reliable operation, and longevity of the compressor.

While rubber and o-rings are common in certain sealing applications because they can provide good pliability and sealing characteristics, they may not withstand the extreme conditions found in all compressor applications as effectively as copper and packing. Plastic and foam are generally not suitable for high-pressure applications, while steel and gaskets might be more rigid and less effective in forming tight seals compared to the flexible nature of packing materials. Therefore, copper and packing are preferred for modern compressor shaft seals due to their superior performance in harsh operational conditions.