Xylem-Bell & Gossett 113021 #87 Air Vent 150 PSI 1/2 Inch Female x 3/4 Inch MPT

The Xylem-Bell & Gossett 113021 is a #87 series automatic air vent designed to efficiently remove air from hydronic heating and cooling systems. This heavy-duty air vent features a 150 PSI pressure rating, making it suitable for a wide range of commercial and residential HVAC applications.

Key Features:

• Model #87 automatic air vent for reliable air elimination
• 150 PSI maximum working pressure rating
• 1/2 inch female NPT x 3/4 inch male NPT connection
• Durable construction for long-lasting performance in hydronic systems
• Automatically vents trapped air to improve system efficiency and reduce noise
• Prevents air pockets that can cause circulation problems and pump cavitation

This air vent is an essential component for maintaining optimal performance in boiler systems, radiant heating loops, chilled water systems, and other closed-loop hydronic applications. The automatic operation ensures continuous air removal without manual intervention, helping to maintain system efficiency and prevent airlocks.