<p>Here <strong>Refrigerator piping details</strong> The common refrigeration system consists of three main pipes: air pipe, hot air pipe, and liquid supply. Refrigeration system Piping An often overlooked, but very important part of any refrigeration systems. For the above main 3 refrigeration system piping, there are still other branches, which are dispensable based on different systems. including liquid line , thermal bulbs , sight glass , charging connection , condenser ,compressor , pressure sensing , thermal bulb expansion valve , drain plug , second valve for more details of <strong>Refrigerator piping </strong>download this file.</p>