Armstrong International C5491 3/4 Inch Thermostatic Air Vent

The Armstrong International C5491 ¾ inch thermostatic air vent modulates air circulation and ensures constant temperatures in steam heating systems. It features a bimetallic spring that adapts to changes in temperature. As the room gets warmer, the spring expands and shuts the vent to prevent overheating. When the temperature drops, the spring collapses, enabling warm air to circulate across the vent. This self-sufficient operation helps to improve energy efficiency and comfort in buildings through minimising both overheating and wasted energy from unnecessary heating. In addition, the C5491 is produced out of resilient brass for durability and may be altered according to individual temperature demands.