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Defrost Heater
Despite purification and filtration of air some water Vapour and CO2 will get past the Molecular sieve Driers and enter the Air Separation Unit and may be deposited in the tubes of Heat Exchangers, Valves and L.O. Pump Filters. To remove this deposit, defrosting of the plant is carried out. For this dry air after heating in heater passed inside the Air Separation Unit and L.O. Pump and deposits will be melted and removed.
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