Armstrong International D500150 Air/Gas Vent

The Armstrong International D500150, effectively known as the 11AV-1/2-178, is a high-performance stainless steel air and gas vent designed for critical venting applications in pressurized systems. Constructed from durable, corrosion-resistant 300 series stainless steel, this Series 11AV free floating lever vent is engineered to withstand harsh environments while providing reliable operation. Featuring a 3/4" NPT inlet and a 1/2" NPT outlet, it utilizes a precision-engineered 1/8" orifice to handle maximum operating pressures up to 178 PSI. This industrial air eliminator is essential for removing accumulated air and non-condensable gases, which can otherwise impede heat transfer and reduce system efficiency. Its all-welded construction ensures a leak-proof seal and long-term durability in HVACR, petrochemical, and manufacturing processes, making it a superior choice for liquid-filled systems requiring constant gas venting.

• Corrosion Resistance: Full stainless steel construction ideal for distilled water or aggressive environments.
• Efficient Venting: Free-floating lever mechanism ensures positive closure even under light loads.
• High Pressure Rating: Rated for a maximum allowable pressure of 178 PSI to support demanding applications.
• Compact Design: Provides a lightweight solution for space-constrained piping configurations.
• Interchangeability: Direct replacement for the standard 11AV-1/2-178 model.

Common Questions:

What is the maximum operating pressure for the Armstrong D500150?
The D500150 is specifically designed to operate at pressures up to 178 PSI (12 bar) with a liquid specific gravity of 0.75 or higher.

Can this vent be used for chemical processing?
Yes, the 304 Series stainless steel body and internal components provide excellent resistance to a wide range of chemicals and corrosive agents.

How do I install the Series 11AV air and gas vent?
This unit must be installed vertically with the inlet at the bottom to ensure the free-floating lever operates correctly for optimal air removal.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.