Caleffi 502640

Caleffi 502640 is a precision 1/2" air vent designed specifically for Hydrolink Series systems. This compact vent provides reliable automatic air removal, helping prevent air pockets that can degrade performance in hydronic heating and cooling setups. The 1/2" connection ensures an easy, secure fit in standard Hydrolink installations, delivering consistent venting where it matters most.

With durable materials and a compact profile, the Caleffi 502640 combines long-term reliability with simple maintenance. It’s ideal for new builds and retrofit projects that demand efficient air elimination without sacrificing space or flow. Use this vent to improve system efficiency, reduce noise, and extend the life of pumps and radiators.

• Primary use: automatic air vent designed for Hydrolink Series only
• Size: 1/2" NPT connection for broad compatibility
• Function: removes trapped air to optimize circulation
• Durability: robust construction resistant to corrosion
• Installation: simple inline integration with Hydrolink components