Armstrong International C3510-1 Vent

The Armstrong International C3510-1, also recognized as the Model 1AV-1/2-146, is a high-performance free floating lever air and gas vent engineered for industrial piping systems. Constructed with a rugged cast iron body and stainless steel internal mechanisms, this automatic air release valve effectively removes trapped air and non-condensable gases from pressurized liquid systems. Featuring 1/2" NPT inlet and 1/4" NPT outlet connections with a 1/8" orifice, it supports a maximum operating pressure of 146 PSI. This HVACR air vent utilizes a reliable float mechanism to prevent air binding, ensuring optimal flow velocity and heat transfer. Ideal for hot water heating systems and cold water cooling lines, the C3510-1 provides continuous, maintenance-free venting of gases without the loss of process fluids, protecting equipment from corrosion and water hammer. Its simple design ensures long-term durability in demanding thermal environments.

Key Benefits

• Automatic Air Venting: Continuously removes air and gases to prevent system air binding.
• Industrial Durability: Robust cast iron construction handles pressures up to 146 PSI.
• Corrosion Resistance: Stainless steel internal float and lever resist wear and chemical degradation.
• Direct Interoperability: Fully compatible and identical to the 1AV-1/2-146 model for easy replacement.
• Improved Efficiency: Minimizes flow resistance and noise while maximizing heat transfer capacity.

Common Questions

How does a free floating lever air vent work in HVACR systems?
The internal float rises and falls with the liquid level; when air accumulates, the float drops, opening the 1/8" orifice to discharge gas before automatically resealing when the liquid returns.

Can the Armstrong C3510-1 be used for both air and gas venting?
Yes, the Series 1AV air vent is specifically designed to handle air and various non-corrosive gases in pressurized liquid lines.

What is the difference between the C3510-1 and the 1AV-1/2-146?
There is no technical difference; C3510-1 is a specific part number that is identical in specifications and function to the 1AV-1/2-146.

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.