Types of dampers in hvac pdf

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w.g. for elevated HVAC duct requirements. Damper construction. Fire dampers are made with two designs, the curtainblade type and the multiple-blade type. 1. Multi-Blade Control Dampers · 2. Single Blade Dampers · 3. Backdraft and Pressure-Relief Dampers · 4. Face and Bypass Dampers · 5. Inlet Vane Dampers · 6. Greenheck control dampers are offered with either parallel or opposed blades. Each style has distinguishing characteristics in regard to the type of Each style has distinguishing characteristics in regard to the type of operation required. • Parallel blade operation - This configuration requires the damper style has distinguishing characteristics in regards to the type of operation required. ¬ Parallel blade operation - This configuration requires the damperand velocity. (fpm) rating. Operation refers to the type of system a damper has been tested for. Dynamic fire dampers can be applied in all HVAC systems. Dampers for HVAC Purposes · Butterfly Dampers · Louver Dampers · Guillotine Dampers · Inlet Vane Dampers.