Caleffi 502720A

Caleffi 502720A, an Automatic Air Vent 1/4" NPT Male with check, is engineered to remove trapped air from hydronic systems efficiently. Its compact brass body fits tight spaces in boilers, radiant heating systems, and chilled-water loops. The durable brass construction resists corrosion and high temperatures, delivering long service life in hot water and glycol environments.

Featuring a built-in check valve to prevent backflow and water hammer, this vent protects pumps and improves overall efficiency. The precise internal mechanism ensures quick venting at system startup and during cycling, reducing air pockets, noise, and energy waste.

Designed for residential and commercial hydronic systems, it delivers reliable air release and long-lasting performance. Ideal for new installations or replacements in boiler rooms, radiant floor manifolds, and HVAC loops, it integrates seamlessly with standard 1/4" NPT threads and compact layouts.

• 1/4" NPT male connection for simple, secure installation
• Automatic air release reduces air pockets and protects efficiency
• Integrated check valve prevents backflow and water hammer
• Durable brass construction resists corrosion in hot water environments
• Compact design fits tight spaces in boilers and radiant systems

Add Caleffi 502720A to your boiler, radiant heat, or HVAC loop for steady operation and maintenance-free reliability.