Designed for residential, commercial or industrial use to quickly extract micro bubbles and static air from a hydronic heating system. The Air Separator must be installed in a straight run of horizontal piping and positioned precisely upright. Designated lengths of straight piping before and after the unit are not required. Neither side is designated as an inlet or outlet; the flow may be directed in either direction. Solder joint temperature ratings are per ANSI B1.18 Annex A for 95-5 solder. Other solder materials have lower pressure/temperature limits. Do not silver braze or overheat valves when soldering.