BACK PRESSURE V/V- TO KEEP DIFFERENT TEMP OF DIFFERENT ROOMS. WE USE IT IN VEG. ROOM. WE SET BACK PRESSURE, SO IT INCREASE THE BACK PRESSURE IN VEG ROOM LINE. AND SO THE SATURATION TEMP. INCREASE. SITUATED AT VEG ROOM DISCHARGE.
back pressure valve is fitted at the outlet of veg room. the reason being that the veg room is maintained at a temperature of +4 -5 degree while fish room is at about -12 to -15 degrees and the flow and amount of refrigerant at fish room and meat room is greater as compared to that of veg room.
hence if back pressure valve is not fitted then when refrigerants will come at the outlet of all the three rooms then the refrigerant will tend to flow towards veg room. hence to avoid it a back pressure valve is fitted which will allow refrigerant to flow out only if the pressure inside the veg room outlet will be greater than the outlet from the main line.
back pressure valve is fitted at the outlet of veg room. the reason being that the veg room is maintained at a temperature of +4 -5 degree while fish room is at about -12 to -15 degrees and the flow and amount of refrigerant at fish room and meat room is greater as compared to that of veg room.
hence if back pressure valve is not fitted then when refrigerants will come at the outlet of all the three rooms then the refrigerant will tend to flow towards veg room. hence to avoid it a back pressure valve is fitted which will allow refrigerant to flow out only if the pressure inside the veg room outlet will be greater than the outlet from the main line.
0 comments:
Post a Comment