this automatic vent damper enhances system efficiency by preventing standby heat loss through the stack
Engineered with a durable cast iron frame and reinforced end brackets
this centrifugal pump maintains consistent flow rates across complex piping geometries
eliminating the vibration issues and shaft-seizing common with universal "fit-all" alternatives
5-inch white and 5-1/8-inch black wheels) to maintain the required static pressure across the heat exchanger
Belimo NFB24-MFT-S Actuator 321894-708 this automatic vent damper enhancesThe Belimo NFB24 MFT S Actuator is a heavy duty spring return damper actuator designed for reliable fail safe operation in commercial HVAC systems. Delivering 90 in lb of torque, this unit utilizes Multi Function Technology (MFT), allowing for wide ranging field parameterization. It supports a variety of control signals, including on off, floating point, PWM, and 2 10 VDC modulating control. For precise integration, the input impedance is rated at 500