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Round Dampers

Spiral ducts need round dampers. This category includes control, balancing, and backdraft dampers for round ductwork.

Products 16

Products

580-BD

10" Deep Round Industrial Backdraft Damper

Arrow - 580BD

580BD

  • Maximum Velocity (FPM): 6000 fpm
  • Max Static Pressure: 8 .in w.g. @ 1000 fpm
  • Pressure Drop: < .1 in. w.g. @ 1000 fpm
  • Material Options: 304 Stainless Steel, 316 Stainless Steel, or Fabricated Steel
  • Blade Type: Single Thickness Blade
  • Blade Action: Single
  • Frame Shape: Round
  • Pressure Drop: < .1 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 6000 fpm (FPM)
  • Temperature Rating (°F): 200 °F
More Info

AF53

Round Single Blade Control Damper with Seals

Arrow - 250SRD

AF53

  • Maximum Velocity (FPM): 3000 fpm
  • Max Static Pressure: 6 .in w.g. @ 1000 fpm
  • Pressure Drop: .013 in. w.g. @ 1000 fpm
  • Material Options: Galvanized Steel
  • Blade Type: Single Thickness Blade
  • Blade Action: Single
  • Frame Shape: Round
  • Pressure Drop: .013 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 3000 fpm (FPM)
  • Temperature Rating (°F): 250 °F
More Info

D260DW

Dual Wall Insulated Round Single Blade Volume Control Damper

Arrow - 260DW

D260DW

  • Maximum Velocity (FPM): 3000 fpm
  • Max Static Pressure: 6 .in w.g. @ 1000 fpm
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Material Options: Extruded Aluminum 6063 Alloy, 304 Stainless Steel, 316 Stainless Steel, or Galvanized Steel
  • Blade Type: True Round Single Thickness (UVU)
  • Blade Action: Single
  • Frame Shape: Round
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 3000 fpm (FPM)
More Info

D388

Galvanized Steel Round Backdraft Damper

Arrow - 388

D388

  • Maximum Velocity (FPM): 3000 fpm
  • Max Static Pressure: 1 .in w.g. @ 1000 fpm
  • Pressure Drop: .05 in. w.g. @ 1000 fpm
  • Material Options: Galvanized Steel
  • Blade Type: Single Thickness Blade
  • Blade Action: Single
  • Frame Shape: Round
  • Pressure Drop: .05 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 3000 fpm (FPM)
  • Temperature Rating (°F): -35 °F to 180 °F
More Info

D389

Aluminum Round Backdraft Damper

Arrow - 389

D389

  • Maximum Velocity (FPM): 3000 fpm
  • Max Static Pressure: 1 .in w.g. @ 1000 fpm
  • Pressure Drop: .05 in. w.g. @ 1000 fpm
  • Material Options: Extruded Aluminum 6063 Alloy
  • Blade Type: Single Thickness Blade
  • Blade Action: Single
  • Frame Shape: Round
  • Pressure Drop: .05 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 3000 fpm (FPM)
  • Temperature Rating (°F): -35 °F to 180 °F
More Info

D390

Stainless Steel Round Backdraft Damper

Arrow - 390

D390

  • Maximum Velocity (FPM): 3000 fpm
  • Max Static Pressure: 1 .in w.g. @ 1000 fpm
  • Pressure Drop: .05 in. w.g. @ 1000 fpm
  • Material Options: 304 Stainless Steel, or 316 Stainless Steel
  • Blade Type: Single Thickness Blade
  • Blade Action: Single
  • Frame Shape: Round
  • Pressure Drop: .05 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 3000 fpm (FPM)
  • Temperature Rating (°F): -35 °F to 180 °F
More Info

GI80

Industrial Single Blade Round Control Damper

Arrow - 580-R

GI80

  • Maximum Velocity (FPM): 10000 fpm
  • Max Static Pressure: 12 .in w.g. @ 1000 fpm
  • Pressure Drop: < .1 in. w.g. @ 1000 fpm
  • Material Options: 304 Stainless Steel, 316 Stainless Steel, or Fabricated Steel
  • Blade Type: Single Thickness Blade
  • Blade Action: Single
  • Frame Shape: Round
  • Pressure Drop: < .1 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 10000 fpm (FPM)
  • Temperature Rating (°F): 250 °F
More Info

GI81

Industrial Heavy Duty Round Control Damper

Arrow - 581-R

GI81

  • Maximum Velocity (FPM): 10000 fpm
  • Max Static Pressure: 16 .in w.g. @ 1000 fpm
  • Pressure Drop: < .1 in. w.g. @ 1000 fpm
  • Material Options: 304 Stainless Steel, 316 Stainless Steel, or Fabricated Steel
  • Blade Type: Single Thickness Blade
  • Blade Action: Single
  • Frame Shape: Round
  • Pressure Drop: < .1 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 10000 fpm (FPM)
  • Temperature Rating (°F): 250 °F
More Info

L112

Round Single Blade Volume Control Damper

Arrow - 200VCRD

L112

  • Maximum Velocity (FPM): 1500 fpm
  • Max Static Pressure: 1 .in w.g. @ 1000 fpm
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Material Options: Galvanized Steel
  • Blade Type: Single Thickness Blade
  • Blade Action: Single
  • Frame Shape: Round
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 1500 fpm (FPM)
  • Temperature Rating (°F): 250 °F
More Info

L56

6.5" Deep Aluminum Airfoil Control Damper with Transition

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L56

  • Maximum Velocity (FPM): 2000 fpm
  • Max Static Pressure: 6 .in w.g. @ 1000 fpm
  • Pressure Drop: .04 in. w.g. @ 1000 fpm
  • Material Options: Extruded Aluminum 6063 Alloy
  • Blade Type: Airfoil Blade
  • Blade Action: Parallel / Opposed
  • Frame Shape: Round
  • Pressure Drop: .04 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 2000 fpm (FPM)
More Info

L70

7.5" Deep Round Galvanized Steel Damper

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L70

  • Maximum Velocity (FPM): 2000 fpm
  • Max Static Pressure: 4 .in w.g. @ 1000 fpm
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Material Options: Galvanized Steel
  • Blade Type: Single Thickness Blade
  • Blade Action: Single
  • Frame Shape: Round
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 2000 fpm (FPM)
  • Temperature Rating (°F): -35 °F to 180 °F
More Info

L70GL

7.5" Deep Round Galvanized Steel Damper with Honeywell Actuator

Arrow - 70GL

L70GL

  • Maximum Velocity (FPM): 1500 fpm
  • Max Static Pressure: 1 .in w.g. @ 1000 fpm
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Material Options: Galvanized Steel
  • Blade Type: Single Thickness Blade
  • Blade Action: Single
  • Frame Shape: Round
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 1500 fpm (FPM)
  • Temperature Rating (°F): 250 °F
More Info

L70R

7.625" Deep Round Single Blade Galvanized Steel Damper with Nine Position Locking Hand Quadrant

Arrow - 70R

L70R

  • Maximum Velocity (FPM): 1500 fpm
  • Max Static Pressure: 1 .in w.g. @ 1000 fpm
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Material Options: Galvanized Steel
  • Blade Type: Single Thickness Blade
  • Blade Action: Single
  • Frame Shape: Round
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 1500 fpm (FPM)
  • Temperature Rating (°F): 250 °F
More Info

L75

7.5" Deep Round Aluminum Damper

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L75

  • Maximum Velocity (FPM): 2000 fpm
  • Max Static Pressure: 4 .in w.g. @ 1000 fpm
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Material Options: Extruded Aluminum 6063 Alloy
  • Blade Type: Single Thickness Blade
  • Blade Action: Single
  • Frame Shape: Round
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 2000 fpm (FPM)
  • Temperature Rating (°F): -35 °F to 180 °F
More Info

L80

7.5" Deep Round Stainless Steel Damper

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L80

  • Maximum Velocity (FPM): 2000 fpm
  • Max Static Pressure: 4 .in w.g. @ 1000 fpm
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Material Options: 304 Stainless Steel, or 316 Stainless Steel
  • Blade Type: Single Thickness Blade
  • Blade Action: Single
  • Frame Shape: Round
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 2000 fpm (FPM)
  • Temperature Rating (°F): -35 °F to 180 °F
More Info

L85

6.5" Deep Aluminum Pin-Lock Control Damper with Transition

Arrow - 85

L85

  • Maximum Velocity (FPM): 2000 fpm
  • Max Static Pressure: 4 .in w.g. @ 1000 fpm
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Material Options: Extruded Aluminum 6063 Alloy
  • Blade Type: Pin-Lock
  • Blade Action: Parallel / Opposed
  • Frame Shape: Round
  • Pressure Drop: .012 in. w.g. @ 1000 fpm
  • Maximum Velocity (FPM): 2000 fpm (FPM)
More Info