ENGINEERING MANUAL OF AUTOMATIC CONTROL
DAMPER SELECTION AND SIZING
451
Damper Selection
and Sizing
Contents
Introduction ............................................................................................................ 453
Definitions ............................................................................................................ 453
Damper Selection ............................................................................................................ 454
Damper Types ..................................................................................... 454
Parallel and Opposed Blade Dampers............................................ 454
Round Dampers .............................................................................. 454
Low Leakage Dampers ................................................................... 454
Smoke Dampers ............................................................................. 456
Fire Dampers .................................................................................. 456
Multiple Section Dampers ............................................................... 457
Baffles ............................................................................................. 457
Typical Damper Construction .......................................................... 458
Performance Data ............................................................................... 458
Leakage Ratings ............................................................................. 458
Torque Requirements ...................................................................... 460
Velocity Ratings .............................................................................. 460
Temperature Ratings ....................................................................... 460
Pressure Ratings ............................................................................ 460
UL Classification (Fire/Smoke)........................................................ 460
Application Environment...................................................................... 460
Velocity ............................................................................................ 460
Static Pressure................................................................................ 461
Temperature .................................................................................... 461
Corrosion ........................................................................................ 461
Turbulence ...................................................................................... 461
Nuclear/Seismic Applications .......................................................... 461
Actuators and Linkages ....................................................................... 461
Normally Open/Normally Closed..................................................... 461
Actuator Mounting Alternatives ....................................................... 462
Positive Positioners......................................................................... 462
Multiple Actuators............................................................................ 462
Jackshafts ....................................................................................... 463
Actuator Selection ........................................................................... 463
To Next Page
Loading...
Need help?
General
