Caleffi 502710A Air Vent 1/8 Inch Npt W/Chk Valve

Caleffi 502710A Air Vent W/Check Valve 1/8" NPT removes trapped air from hydronic heating and cooling systems to maintain proper fluid circulation and pressure balance. Featuring an internal float-operated venting assembly with an integrated mechanism the component automatically releases accumulated air while preventing fluid discharge during servicing. Threaded connection mount directly onto boilers manifolds, piping assemblies and circulation systems for continuous air elimination during operation in HVAC systems. Its compact brass maintains consistent venting action reduced air-related flow restriction, and balanced fluid movement.