Round Dampers

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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

56

6.5" Deep Aluminum Airfoil Control Damper with Transition

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)

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70

7.5" Deep Round Galvanized Steel Damper

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

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70-GL

7.5" Deep Round Galvanized Steel Damper with Honeywell Actuator

70GL

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

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70-R

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

70R

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

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75

7.5" Deep Round Aluminum Damper

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

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80

7.5" Deep Round Stainless Steel Damper

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

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85

6.5" Deep Aluminum Pin-Lock Control Damper with Transition

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)

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200VCRD

Round Single Blade Volume Control Damper

200VCRD

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

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260-DW

Dual Wall Insulated Round Single Blade Volume Control Damper

260DW

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)

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388

Galvanized Steel Round Backdraft Damper

388

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

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389

Aluminum Round Backdraft Damper

389

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

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390

Stainless Steel Round Backdraft Damper

390

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

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580-BD

10" Deep Round Industrial Backdraft Damper

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

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580-R

Industrial Single Blade Round Control Damper

580R

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

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581-R

Industrial Heavy Duty Round Control Damper

581R

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

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250-SRD

Round Single Blade Control Damper with Seals

250SRD

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

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