This Lochinvar Auto Vent Valve is a mechanical device designed for automatic air venting in heating, cooling, and water systems. It features a 1/2 inch close-off mechanism, which allows for precise control of the venting process. The valve is designed to operate at a maximum temperature of 195 degrees Fahrenheit (┬░F), ensuring optimal performance even under high-temperature conditions. The Lochinvar Auto Vent Valve is constructed from durable materials that resist corrosion and wear, providing long-lasting reliability in various system applications.