Caleffi 250041A Solar Automatic Air Vent Valve 1/2" NPT

The Caleffi 250041A Solar Automatic Air Vent Valve is an essential part for solar heating systems. This 1/2” NPT valve is self-draining, which means that it will release trapped air from the system for the better performance. By avoiding separation of air, it enhances the efficacy as well as durability of the solar collectors, pumps, and other heating, ventilation, and air conditioning equipment. This air vent valve is used in solar thermal systems, hydronic heating systems, and other fluid based heating systems. It assists in circulation, keeps system noise at a minimum, and avoids airlock damage.