Why nitrogen purging in reciprocating compressor?

Nitrogen purging in reciprocating compressors is used to remove moisture and contaminants from the system, which can prevent corrosion and maintain optimal performance. By displacing air and moisture with nitrogen, it helps to reduce the risk of explosive mixtures and ensures that the compressor operates efficiently. Additionally, purging with nitrogen can help in maintaining the integrity of the compressor during maintenance or shutdown periods. Overall, it enhances reliability and longevity of the equipment.