Description
The Caleffi NA29284 Air Vent Shut Off Valve is a manual isolation valve used in combination with automatic air vent assemblies to control venting in closed piping circuits. It features a 1/2 inch NPT connection and a pressure rating of 150 PSI, allowing secure shutoff during maintenance or system servicing. This component is commonly applied in hydronic piping, solar loops, and other HVAC systems where air removal and isolation control are required. Installed inline with the air vent, it supports controlled opening and closing of the venting path during filling and normal operating conditions.
