An open type compressor keeps the refrigerant from escaping by using what type of seal?

An open type compressor is designed for applications where the refrigerant circulation must be maintained efficiently while preventing it from escaping. The seal type used in these compressors is critical for ensuring reliability and operational efficiency.

In the case of carbon and metal seals, they are specifically engineered to withstand the high pressures and temperatures associated with the refrigerant in the compressor. Carbon seals provide excellent wear resistance and can handle the rotational and thermal stresses that occur during compressor operation. The metal components help to maintain structural integrity and support under these demanding conditions.

This sealing mechanism is effective in preventing leakage, which is crucial for maintaining the performance of the refrigeration system and for environmental considerations. The use of carbon and metal also allows for longevity and durability, reducing the need for frequent maintenance or replacement.

The other combinations of materials, such as plastic with rubber or neoprene with aluminum, may not provide the same level of effectiveness against the operational demands of an open type compressor. These alternatives may lack the necessary strength, heat resistance, or wear properties to be viable options for this critical function.