Fitters Notes Series: Filter Driers and Sight Glasses
24 March 2009
It is time to turn our attention to another pair of standard fittings in liquid lines: the filter drier and the sight glass. The importance of these two components is often (and undeservedly) underestimated. The filter drier and sight glass protect the refrigeration system and provide an important indication of any problem involving the refrigerant, moisture, or contamination in the system.
Useful practical tips for the everyday work of fitters is provided in the “Fitters Notes” series. The “Fitters Notes” series is based on the handbook of the same name produced by Danfoss, which discusses the basic principles of commercial refrigeration systems and the associated basic components.