Description
The Caleffi 502620A Automatic Air Vent 1/4″ NPT M is an essential component used in clear systems to remove trapped air from circulating water. It operates automatically through an internal float mechanism that opens and closes a discharge valve when air accumulates. Installed at high points of piping networks, air separators, boilers, and fan coil circuits, it supports consistent flow and reduces noise, corrosion, and efficiency losses in HVAC systems. The unit is used in commercial heating and cooling connection where continuous deaeration is required to maintain stable system performance within closed-loop systems.
