Description
The Belimo B251+AFRB24 as a 2-inch, 2-way spring-return on/off valve with 65Cv flow coefficient that works with 24V power. This valve operates in hydronic HVAC systems to manage water flow for heating or cooling operations. The valve responds to signals by opening or closing its mechanism. The spring return mechanism of this valve automatically moves it into its fail-safe position (usually closed) whenever power supply fails. The valve provides both precise flow control and energy efficiency and reliable operation.









