Automatic air vent valves automatically release air from closed water and glycol-based liquid systems with a maximum concentration of 50%, such as heating and cooling systems, boilers, and heat exchangers. They operate on a simple principle: inside the valve is a float that floats on the liquid surface; as the level drops due to air bubbles, the valve opens and releases excess air from the system. The air vent valve thus ensures the maintenance of sufficient pressure in the pipes and protects the system from pressure drops. For the valve to function properly, it is important to install it at the highest point of the system.
Automatic air vent valves are made from high-quality materials, offering high reliability, durability, and performance. We recommend installing a check valve in the system before the air vent valve, which prevents the backflow of air and liquid, or purchasing an air vent valve with an integrated check valve.
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