Resideo by HoneyWell FV147 Automatic Air Vent PSI Boiler Repair Parts - 1/8 240 F/150

The Resideo by Honeywell FV147 is a compact automatic air vent designed to efficiently remove trapped air from hydronic heating systems, preventing air locks and ensuring optimal system performance. This low-profile vent features a 1/8" NPT connection for easy installation in tight spaces.

Key Features:

• Maximum operating temperature of 240°F for reliable performance in high-temperature applications
• Maximum working pressure of 150 PSI for safe operation in residential and light commercial systems
• Automatic float mechanism releases trapped air while preventing water loss
• Compact 1/8" NPT threaded connection fits in confined areas
• Brass construction provides durability and corrosion resistance
• Ideal for use on radiators, baseboards, fan coils, and other hydronic heating components

This automatic air vent continuously purges air from closed-loop heating systems, eliminating noise and improving heat transfer efficiency. The float-operated valve opens when air accumulates and closes automatically when water reaches the vent, ensuring maintenance-free operation.