Armstrong International C3510-12 Air Vent

The Armstrong International C3510-12 Air Vent is a high-performance Series 1AV cast iron air vent engineered for efficient, low-capacity air and gas removal in industrial hydronic and liquid systems. Also known by the model number 1AV-3/4-300, this unit features a 3/4 inch NPT inlet and a 1/4 inch NPT outlet to facilitate seamless integration into existing pipelines. Built with a rugged cast iron body, it utilizes a free-floating lever mechanism and a 5/64 inch orifice to provide a positive, leak-tight seal even under demanding conditions. Designed to handle a maximum operating pressure of 300 PSI, this industrial air vent leverages the same proven internal components found in Armstrong inverted bucket steam traps, ensuring long-term reliability and resistance to wear. By utilizing an elliptical float and high-leverage ratio, the C3510-12 effectively opens against high pressures to maintain optimal system efficiency and prevent air-related performance drops.

This item is not eligible for free shipping.

• Efficient Venting: Specialized 5/64 inch orifice and free-floating lever design ensure reliable discharge of air and gases.
• High Pressure Capability: Rated for 300 PSI, making it suitable for a wide range of high-pressure liquid and heating applications.
• Durable Construction: The cast iron body provides a robust solution for harsh industrial environments.
• Proven Reliability: Uses the same internal valve and seat components as industry-leading Armstrong steam traps.
• Leak-Proof Performance: The positive-closing lever mechanism ensures a leak-tight seal under all operating conditions.

Is the C3510-12 interchangeable with the 1AV-3/4-300?
Yes, the Armstrong C3510-12 is identical to the 1AV-3/4-300 model, sharing the same specifications and performance ratings.

What is the maximum pressure this vent can handle?
This cast iron air vent is designed to operate safely and effectively at pressures up to 300 PSI (21 bar).

Does this air vent work for gas applications?
Yes, the Series 1AV is specifically designed as a dual-purpose air and gas vent for liquid service systems.

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.