PRESERVATION OF REFRIGERATION COMPRESSOR
If the compressor is not to be commissioned immediately after receipt at site &
to be stored for long time, then in order to avoid rusting/ damages to internal &
external parts of the compressor & to water jackets, following preservation
action should be taken by the end user/ contractor/erector.
o WATER JACKET RUSTING: Each water jacket has two sockets of 3/4"
BSP size, one at top & other at bottom. Fit 3/4" dummy plug at the bottom
socket of water jacket & pour any one of following brands of oil:
1. Rustolin DW 901 of CastroI Oil Company.
2. RP 150 or 330 of IOCL,
3. Rustop 387 or 388 of HP
Keep the oil in water jacket area for a day or two & then open the dummy
plug & drain oil. Or else, oil can be kept inside the water jacket till the
compressor is commissioned. Refit the plug at top socket of the water jacket
after above operation.
o SEAL COVER & SEAL: Open 3/8" BSP plug on seal cover. Pour new
refrigeration oil in sufficient quantity & rotate crankshaft. This will protect
seal assembly & also crankshaft main bearings & conn. rod big end
bearings. Refit the above plug after oil application.
o PUMP END : Remove pressure gauge union 1/4" BSP size fitted on top of
pump housing. Pour new refrigeration oil in sufficient quantity & rotate
crankshaft. This will protect pump gears, bearings & also main bearings &
intermediate bearings. Refit the above union after oil application.
oINTERNAL PARTS OF THE COMPRESSOR: At the time of dispatch of
compressor from Saswad factory (after shop testing & painting of the same)
each compressor is evacuated & filled with Nitrogen gas at pressure of
about 2 Kg/sq.cm. However during transit/storage at site Nitrogen gas may
leak out. So, after application of oil in seal cover & pump end as described
above, evacuate the compressor & charge it with dry Nitrogen gas.
oCRANKSHAFT PROTECTION: Apply heavy-duty grease (Servogem 3 of
IOCL) on entire taper portion of crankshaft to prevent rusting.
IMPORTANT
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