Model SG Sight Glass is used on the liquid piping of the refrigeration and air conditioning unit to indicate the flow condition of the refrigerant, water cut of the refrigerant and lubricant oil flow condition of the oil return piping on the oil separator.
It is equipped with one moisture indicator, which will change color to indicate the water cut in the refrigerant.
There are two types: Model SGR and Model SGN.
Model SGR is used to indicate the level of the refrigerant in the liquid drum and the lubricant oil level in the compressor crankcase.
Model SGS is an independent body structure with conventional sintered glass and O-ring seal.