Liquid overfeed systems

• Liquid over feed system consist of low pressure receiver, liquid feed pumps along with various controls as safeties for liquid feed pumps, compressors and to feed forced liquid to evaporators. In liquid over feed systems (recirculation system) excess liquid is forced mechanically with liquid feed pumps through organized flow evaporators. This ensures no oil retained us the evaporator slugs in the compressors leading to high saving in power and maintenance.
• Advantages of liquid overfeed system:
• Liquid overfeed system ensures even liquid distribution to all evaporators and less pressure drops in evaporators. The system protects the compressors under odd operational conditions. Best suitable where hot gas defrosting are essentials.