Neck Size (Inch) : and Outlet Area (Inch²) are important parameters in HVAC systems, particularly for air diffusers, grilles, registers, and ducts. These terms help in designing and selecting air distribution components for efficient airflow. Below are key terminologies related to Neck Size and Outlet Area .
CFM (Cubic Feet per Minute) : is a crucial term in HVAC (Heating, Ventilation, and Air Conditioning) and airflow calculations. It represents the volume of air moving through a system per minute.
Outlet Velocity (VK) : in HVAC refers to the speed of air exiting a diffuser, grille, register, or duct, typically measured in feet per minute (FPM)
Noise Criteria (NC) : is a rating system used to evaluate the background noise level in indoor environments, particularly in HVAC systems, offices, auditoriums, and commercial spaces. The NC rating helps ensure acceptable noise levels for speech intelligibility, comfort, and productivity.
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