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Sizing Actuators for Damper Applications
number of actuators required depends on several factors. Follow these steps to determine
the quantity of actuators required for the installation.
Obtain damper torque ratings (in-lb/ft2
from the damper manufacturer.
STEP 2: Determine
the area of the damper.
STEP 3: Calculate the total
torque required to move the damper as follows:
To ensure proper actuator sizing use the manufacturer's recommendation for torque
Manufacturer's torque requirements
very greatly depending on seals, static pressure, velocity and damper design. If no
additional information is available, use the following rule of thumb: 6 in-lb/ft2.
This calculator sponsored by Dodge Engineering: DEI manufactures and distributes a wide selection of Actuators, Control Valves and Dampers (Electric & Pneumatic) for the HVAC, Process Control and OEM markets. DEI offers "The Complete Solution" for Air and Fluid Control.