Xylem-Bell & Gossett 113252 Air Vent Cap

The Xylem-Bell & Gossett 113252 Air Vent Cap manages the release of trapped air from the associated air-vent assembly in a hydronic circulation system. As accumulated air reaches the venting mechanism, the cap permits air to escape while retaining system fluid during normal operation. Installed at the upper portion of the compatible air vent, it provides the external interface for the venting operation. Air removal in HVAC systems reduces trapped-air accumulation in hydronic piping and circulation equipment. This venting action maintains a continuous fluid path and reduces air interference that can affect circulation through the connected heating circuit.