The Caleffi Automatic Air Vent Shut-off only is used in the closed circuits of solar heating systems. They allow air contained in the fluid to be released automatically during the filling process, through a valve operated by a float in contact with fluid in the system .
Features:
- Primary Connection Type: NPT female
- Secondary Connection Type: NPT male
- Primary Connection Size: 0.5 Inches
- Secondary Connection Size: 0.5 Inches