Sight glasses Alco

In our online shop you will find a wide range of hermetic Alco sight glasses for indicating the degree of drying at top prices. The sight glass is normally installed in the liquid line directly after the filter drier in systems with an expansion valve. A standard sight glass with indicator usually has a dual function. It monitors whether the moisture content of the refrigerant is within an acceptable range and whether liquid refrigerant is always present at the expansion element.