High Capacity Automatic Air Vent | 9380N Series | FNPT Cast Iron Body

The 9380N Series High Capacity Automatic Air Vent is engineered for large-volume hydronic systems where efficient and continuous air removal is essential. Built with a heavy-duty cast iron body and cover, this vent is designed to withstand high pressures and temperatures in demanding closed-loop water systems.

Ideal for use in HVAC, chilled water, and boiler piping networks, the 9380N prevents trapped air from disrupting system flow, protecting equipment from corrosion, airlock, and unnecessary wear.

✅ Key Features:

• Rugged Cast Iron Construction
  Manufactured from ASTM A126 Class B cast iron, this vent offers exceptional mechanical strength and resistance to thermal cycling.
• High Capacity Automatic Venting
  Built-in stainless steel float mechanism allows the 9380N to automatically discharge air without manual intervention—minimizing maintenance and downtime.
• Wide Operating Range
  Rated for 200 CWP and 125 WSP, this air vent performs reliably in temperatures from 32°F to 230°F. For temperatures above 212°F, use only with properly treated water containing anti-boiling additives.
• Corrosion-Resistant Components
  Internal parts feature ANSI 304 stainless steel and EPDM gaskets for long-lasting, leak-free service even in aggressive water environments.
• Available in Multiple FNPT Sizes
  Choose from ½", ¾", or 1" FNPT connections to suit your system layout and capacity needs.

💡 Ideal For:

• Commercial and industrial hydronic loops
• Boiler air elimination
• Chilled water return lines
• High-flow radiant heating systems

Dimension, Weight

Material