Armstrong 11AV Thermostatic Air Vent 3/4" NPT Inlet x 1/2" Outlet

The Armstrong 11AV is a high-performance thermostatic air vent designed for efficient removal of air from steam systems, preventing air binding and ensuring optimal heat transfer. Constructed from durable stainless steel, this model features a balanced pressure thermostatic element that automatically vents air while closing against steam. Key applications include steam mains, unit heaters, heat exchangers, and process equipment in industries like HVAC, food processing, and chemical manufacturing. Its compact design allows easy installation in tight spaces, with 3/4" NPT inlet and 1/2" outlet connections. Advantages include corrosion resistance, reliable operation up to high pressures, and low maintenance compared to float-type vents, which may require more frequent servicing. However, it may not be suitable for extremely high-temperature applications beyond its rated limits, and initial cost is higher than basic manual vents. This unit offers superior accuracy in air elimination, reducing energy loss and system inefficiencies. Based on image analysis, the asset appears unused (open box condition), with no visible wear, complete labeling, and no attached child assets like sensors. Estimated market value is based on comparable new/unused listings around $250-350 USD; resources include Armstrong's official datasheet (summary: covers installation, specs, and maintenance) available at https://www.armstronginternational.com/sites/default/files/resources/documents/IB-82.pdf.