Armstrong International B4930 Air Vent

The Armstrong International B4930 Air Vent, also known as the TV-2 Thermostatic Air Vent, is a high-performance industrial solution designed for the efficient removal of air and non-condensable gases from steam systems. Featuring a rugged 1/2" NPT connection and a durable cast iron body, this balanced pressure thermostatic air vent is engineered to withstand operating pressures up to 125 PSI. By utilizing a precision-engineered stainless steel bellows, the B4930 ensures rapid air venting during system start-up, significantly improving heat transfer efficiency and reducing the risk of corrosion within your pipeline. Its compact, angle-pattern design makes it an ideal choice for HVAC steam heating applications and process equipment where space and reliability are paramount. Integrating this Armstrong steam vent into your system prevents air binding, ensuring consistent temperature control and optimized energy consumption across your industrial or commercial steam infrastructure.

• Enhanced System Efficiency: Rapidly discharges air to ensure steam reaches heat transfer surfaces faster.
• Robust Construction: Built with a cast iron housing and stainless steel internal components for long-term durability.
• Interchangeable Design: The B4930 is identical to the Armstrong TV-2 air vent, allowing for seamless replacement.
• Corrosion Resistance: High-quality bellows design resists the damaging effects of water hammer and corrosive condensate.
• Wide Application Range: Optimized for pressures up to 125 PSI, making it suitable for a variety of medium-pressure steam systems.

How do I fix air binding in a steam system?
Installing a thermostatic air vent like the B4930 at high points or at the end of the steam main allows trapped air to escape, restoring proper steam flow and heating capacity.

Can the Armstrong B4930 be used for high-pressure steam?
This specific model is rated for a maximum operating pressure of 125 PSI. For high-pressure requirements, consult our technical team for compatible Armstrong models.

Is the TV-2 the same as the B4930 air vent?
Yes, the Armstrong B4930 is functionally and physically identical to the TV-2 thermostatic air vent, sharing the same 1/2" NPT configuration and technical specifications.

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.