Torque Requirements
Torque is the force required to move the damper blades. The higher the torque, the more energy is needed to position the blades. Resistance from components like metal jamb seals or blade-mounted linkages increases the torque required. To minimize this, Tamco uses silicone frame seals, which reduce friction and make it easier to move the blades. Additionally, airflow resistance, especially at higher air pressures, increases the torque needed to fully close the damper. More air pressure inside the system means more force is required to move the blades, particularly during closure. Parallel blades can also increase torque requirements. Tamco torque requirements charts include required torque at a given damper size and blade orientation with a velocity multiplier.
Torque Requirements Charts
Torque Requirement Charts for TAMCO Series 8800 Heavy-Duty Control Damper