Dear all,
In India in the food industries, use of two stage reciprocating compressors and Ammonia refrigerant for -40C evaporation temperature for various freezers is very common.
The compressor manufacturer (Kirloskar) recommends synthetic oil, however majority of the food industries are using Mineral oils having pour point around -25C for many years. The data sheets of these oils are attached for ready reference.
HP Sheetul 68 N68 oil.pdfBPCL MAK FREEZOL 68.pdf
I wonder what must be the effect of mineral oil on following which these Food Industries may not be noticing?
1. Compressor maintenance cost
2. Evaporator performance
I would like to have comments from the forum on this aspect and would like to know following in case any of these industries opt of change over to synthetic oil:
a. Procedure for changing the oil
b. Precausions to be taken while changing the oil.
c. Whether change over will reduce the maintenance cost and improve the efficiency of the evaporators?
Sandybapat
In India in the food industries, use of two stage reciprocating compressors and Ammonia refrigerant for -40C evaporation temperature for various freezers is very common.
The compressor manufacturer (Kirloskar) recommends synthetic oil, however majority of the food industries are using Mineral oils having pour point around -25C for many years. The data sheets of these oils are attached for ready reference.
HP Sheetul 68 N68 oil.pdfBPCL MAK FREEZOL 68.pdf
I wonder what must be the effect of mineral oil on following which these Food Industries may not be noticing?
1. Compressor maintenance cost
2. Evaporator performance
I would like to have comments from the forum on this aspect and would like to know following in case any of these industries opt of change over to synthetic oil:
a. Procedure for changing the oil
b. Precausions to be taken while changing the oil.
c. Whether change over will reduce the maintenance cost and improve the efficiency of the evaporators?
Sandybapat