Tornado Dampers - HTOD-330
Tornado dampers are designed to protect against rapid negative pressure changes caused by passing tornadoes. The HTOD-330 has a double-flanged frame with single thickness fabricated blades.
Pressure suction with airflow - typically exhaust applications
Pressure suction opposite airflow - typically intake applications
Pressure: Up to 83 in. wg (20.7 kPa)
Velocity: Up to 4000 fpm (20.3 m/s)
Temperature: -40°F to 250°F (-40°C to 121°C)
Pressure Rise or Decrease: 3 psi (20.7 kPa)
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Shipping: 2-3 Business Days