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L70

7.5" Deep Round Galvanized Steel Damper

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

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L70GL

7.5" Deep Round Galvanized Steel Damper with Honeywell Actuator

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

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L70R

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

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

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L75

7.5" Deep Round Aluminum Damper

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

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L80

7.5" Deep Round Stainless Steel Damper

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

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L111

4" Deep Single Blade Volume Control Balancing Damper

L111

Maximum Velocity (FPM): 1500 fpm
Max Static Pressure: 1 .in w.g. @ 1000 fpm
Pressure Drop: .037 in. w.g. @ 1000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Single
Frame Shape: Rectangular
Pressure Drop: .037 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 1500 fpm (FPM)
Temperature Rating (°F): 250 °F

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D182

4" Deep Single Thickness Blade Stainless Steel Control Damper

D182

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .037 in. w.g. @ 1000 fpm

Material Options: 304 Stainless Steel, or 316 Stainless Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel / Opposed
Frame Shape: Rectangular
Pressure Drop: .037 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Temperature Rating (°F): -40 °F to 180 °F

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L112

Round Single Blade Volume Control Damper

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

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225-B

2" Deep Light Duty Aluminum Pressure Relief Backdraft Damper

225B

Maximum Velocity (FPM): 1000 fpm
Max Static Pressure: 1 .in w.g. @ 1000 fpm
Pressure Drop: .14 in. w.g. @ 1000 fpm

Material Options: Extruded Aluminum 6063 Alloy
Blade Type: Single Thickness Blade
Blade Action: Parallel
Pressure Drop: .14 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 1000 fpm (FPM)
Temperature Rating (°F): -40 °F to 180 °F

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GI33

8" Deep Light Industrial Single Thickness Control Damper

GI33

Maximum Velocity (FPM): 4000 fpm
Max Static Pressure: 5 .in w.g. @ 1000 fpm
Pressure Drop: .017 in. w.g. @ 1000 fpm

Material Options: 304 Stainless Steel, 316 Stainless Steel, or Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel / Opposed
Frame Shape: Rectangular
Pressure Drop: .017 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 4000 fpm (FPM)
Temperature Rating (°F): 250 °F

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GI34

8" Deep Light Duty Industrial Galvanized Damper

GI34

Maximum Velocity (FPM): 4000 fpm
Max Static Pressure: 10 .in w.g. @ 1000 fpm
Pressure Drop: .017 in. w.g. @ 1000 fpm

Material Options: 304 Stainless Steel, 316 Stainless Steel, or Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel / Opposed
Frame Shape: Rectangular
Pressure Drop: .017 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 4000 fpm (FPM)
Temperature Rating (°F): 250 °F

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D335

2" Deep Aluminum Backdraft Damper

D335

Maximum Velocity (FPM): 3000 fpm
Max Static Pressure: 1 .in w.g. @ 1000 fpm
Pressure Drop: .35 in. w.g. @ 1000 fpm

Material Options: Extruded Aluminum 6063 Alloy
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .35 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 3000 fpm (FPM)
Temperature Rating (°F): -40 °F to 190 °F

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354

6" to 8" Deep Double Deck Multi-Zone Damper

354

Maximum Velocity (FPM): 1000 fpm
Max Static Pressure: 2 .in w.g. @ 1000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel / Opposed
Frame Shape: Rectangular
Maximum Velocity (FPM): 1000 fpm (FPM)
Temperature Rating (°F): -40 °F to 180 °F

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356

10" Deep Triple Deck Multi-Zone Damper

356

Maximum Velocity (FPM): 1000 fpm
Max Static Pressure: 2 .in w.g. @ 1000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Maximum Velocity (FPM): 1000 fpm (FPM)
Temperature Rating (°F): -40 °F to 180 °F

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PR66

4' Deep Galvanized Steel Backdraft Damper - Intake or Discharge

PR66

Maximum Velocity (FPM): 3000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .05 in. w.g. @ 1000 fpm

Material Options: 304 Stainless Steel, 316 Stainless Steel, or Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .05 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 3000 fpm (FPM)
Temperature Rating (°F): -30 °F to 180 °F

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D388

Galvanized Steel Round Backdraft Damper

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

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D389

Aluminum Round Backdraft Damper

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

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D390

Stainless Steel Round Backdraft Damper

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

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D395

4" Deep Single Thickness Blade Low Leakage Control Damper

D395

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .04 in. w.g. @ 1000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel / Opposed
Frame Shape: Rectangular
Pressure Drop: .04 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Temperature Rating (°F): -40 °F to 180 °F

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GI41

10" Deep Industrial Single Thickness Blade Control Damper

GI41

Maximum Velocity (FPM): 2500 fpm
Max Static Pressure: 6 .in w.g. @ 1000 fpm
Pressure Drop: .05 in. w.g. @ 1000 fpm

Material Options: 304 Stainless Steel, 316 Stainless Steel, or Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel / Opposed
Frame Shape: Rectangular
Pressure Drop: .05 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2500 fpm (FPM)
Temperature Rating (°F): 250 °F

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GI42

10" Deep Industrial Single Thickness Blade Control Damper

GI42

Maximum Velocity (FPM): 2500 fpm
Max Static Pressure: 8 .in w.g. @ 1000 fpm
Pressure Drop: .05 in. w.g. @ 1000 fpm

Material Options: 304 Stainless Steel, 316 Stainless Steel, or Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel / Opposed
Frame Shape: Rectangular
Pressure Drop: .05 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2500 fpm (FPM)
Temperature Rating (°F): 250 °F

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GI43

10" Deep Formed Steel Industrial Control Damper

GI43

Maximum Velocity (FPM): 2500 fpm
Max Static Pressure: 10 .in w.g. @ 1000 fpm
Pressure Drop: .05 in. w.g. @ 1000 fpm

Material Options: 304 Stainless Steel, 316 Stainless Steel, or Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel / Opposed
Frame Shape: Rectangular
Pressure Drop: .05 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2500 fpm (FPM)
Temperature Rating (°F): 250 °F

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GD1

5.5" Deep Single Thickness Blade Control Damper (Parallel)

GD1

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .03 in. w.g. @ 1000 fpm

Material Options: 304 Stainless Steel, or Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .03 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Temperature Rating (°F): 200 °F

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GD2

5.5" Deep Single Thickness Blade Control Damper (Opposed)

GD2

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .03 in. w.g. @ 1000 fpm

Material Options: 304 Stainless Steel, or Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Opposed
Frame Shape: Rectangular
Pressure Drop: .03 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Temperature Rating (°F): 200 °F

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PRL

2" Deep Light Duty Aluminum Pressure Relief Damper

PRL

Maximum Velocity (FPM): 1000 fpm
Max Static Pressure: 1 .in w.g. @ 1000 fpm
Pressure Drop: .075 in. w.g. @ 1000 fpm

Material Options: Extruded Aluminum 6063 Alloy
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .075 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 1000 fpm (FPM)
Temperature Rating (°F): -40 °F to 180 °F

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D503

2" Deep Light Duty Stainless Steel Backdraft Damper

D503

Maximum Velocity (FPM): 1000 fpm
Max Static Pressure: 1 .in w.g. @ 1000 fpm
Pressure Drop: .25 in. w.g. @ 1000 fpm

Material Options: 304 Stainless Steel, or 316 Stainless Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .25 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 1000 fpm (FPM)
Temperature Rating (°F): -40 °F to 180 °F

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AD1

5" Deep Parallel Single Thickness Blade Pin-Lock Control Damper

AD1

Maximum Velocity (FPM): 2500 fpm
Max Static Pressure: 2.5 .in w.g. @ 1000 fpm
Pressure Drop: .03 in. w.g. @ 1000 fpm

Material Options: Extruded Aluminum 6063 Alloy
Blade Type: Single Thickness Blade
Blade Action: Parallel
Pressure Drop: .03 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2500 fpm (FPM)

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AD2

5" Deep Opposed Single Thickness Blade Pin-Lock Control Damper

AD2

Maximum Velocity (FPM): 2500 fpm
Max Static Pressure: 2.5 .in w.g. @ 1000 fpm
Pressure Drop: .03 in. w.g. @ 1000 fpm

Material Options: Extruded Aluminum 6063 Alloy
Blade Type: Single Thickness Blade
Blade Action: Opposed
Frame Shape: Rectangular
Pressure Drop: .03 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2500 fpm (FPM)

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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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GI80

Industrial Single Blade Round Control Damper

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

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GI81

Industrial Heavy Duty Round Control Damper

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

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PR55

4" Deep Extruded Aluminum Backdraft Damper

PR55

Maximum Velocity (FPM): 1000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .14 in. w.g. @ 1000 fpm

Material Options: Extruded Aluminum 6063 Alloy
Blade Type: Single Thickness Blade
Blade Action: Parallel
Pressure Drop: .14 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 1000 fpm (FPM)
Temperature Rating (°F): -40 °F to 190 °F

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GB1

5.5" Deep Single Thickness Blade Balancing Damper

GB1

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .04 in. w.g. @ 1000 fpm

Material Options: 304 Stainless Steel, or Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Pressure Drop: .04 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Temperature Rating (°F): 200 °F

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GB2

5.5" Deep Single Thickness Blade Balancing Damper

GB2

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .04 in. w.g. @ 1000 fpm

Material Options: 304 Stainless Steel, or Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Opposed
Frame Shape: Rectangular
Pressure Drop: .04 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Temperature Rating (°F): 200 °F

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D1770

4" Deep Single Thickness Blade Steel Control Damper

D1770

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .037 in. w.g. @ 1000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel / Opposed
Frame Shape: Rectangular
Pressure Drop: .037 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Temperature Rating (°F): -40 °F to 180 °F

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A11

2" Deep Single Blade Aluminum Damper

A11

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 1 .in w.g. @ 1000 fpm
Pressure Drop: .037 in. w.g. @ 1000 fpm

Material Options: Extruded Aluminum 6063 Alloy
Blade Type: Single Thickness Blade
Blade Action: Single
Pressure Drop: .037 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Temperature Rating (°F): -40 °F to 180 °F

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AF53

Round Single Blade Control Damper with Seals

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

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KH2 EP Series

Class II Single Thickness Blade Smoke Damper (3000 FPM, 4 in. w.g. Max)

KH225034

Maximum Velocity (FPM): 3000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 3000 fpm (FPM)
Temperature Rating (°F): 250 °F

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KH2(SS)

Class II Single Thickness Blade Stainless Steel Smoke Damper

KH2250SS

Maximum Velocity (FPM): 3000 fpm

Material Options: 304 Stainless Steel
Blade Type: Single Thickness Blade
Frame Shape: Rectangular
Pressure Drop: .05 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 3000 fpm (FPM)
Temperature Rating (°F): 250 °F

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MR2

Class II, 1.5 Hour Single Thickness Blade Mini Combination Fire-Smoke Damper

MR2H250, MR2H350, MR2V250, MR2V350

Maximum Velocity (FPM): 2000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .03 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.
Temperature Rating (°F): 250 °F to 350 °F

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MS2C

Class II 1.5 Hour Tunnel-Type Single Thickness Blade Combination Fire-Smoke Damper

MS2C250

Maximum Velocity (FPM): 2000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.
Temperature Rating (°F): 250 °F

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MS2C DAN Variant

Class II 1.5 Hour Tunnel-Type Single Thickness Blade Fire-Smoke Damper (No Flange)

MS2C2G250

Maximum Velocity (FPM): 2000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.
Temperature Rating (°F): 250 °F

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17MS

1½ Hr. Rated Vertical Mount Non-Motorized Fire Damper

17MSV

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Frame Shape: Rectangular
Fire Resistance Rating (hrs): 1.5 hrs.

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356-12

12" Deep Triple Deck Multi-Zone Galvanized Steel Damper

356

Maximum Velocity (FPM): 1000 fpm
Max Static Pressure: 2 .in w.g. @ 1000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Maximum Velocity (FPM): 1000 fpm (FPM)
Temperature Rating (°F): -20 °F to 140 °F

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MS1GF ESB Series

Class I, 1.5 Hour Front Access Grille Fire-Smoke Damper (3.5-inch setback)

MS1HD250, MS1HD350, MS1VF250, MS1VF350

Maximum Velocity (FPM): 2000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.
Temperature Rating (°F): 250 °F to 350 °F

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MS1GF SSB Series

Class I, 1.5 Hour Front Access Grille Fire-Smoke Damper (1.5-inch setback)

MS1HE250, MS1HE350, MS1VG250, MS1VG350

Maximum Velocity (FPM): 2000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.
Temperature Rating (°F): 250 °F to 350 °F

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MS1

Class I 1.5 Hour Single Thickness Blade Combination Fire-Smoke Damper

MS1H250, MS1H350, MS1V250, MS1V350

Maximum Velocity (FPM): 3000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 3000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.
Temperature Rating (°F): 250 °F to 350 °F

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MS2C GCF Series

Class II 1.5 Hour Tunnel-Type Fire-Smoke Damper (1.75" Grille Clearance)

MS2C2H250, MS2C2J250

Maximum Velocity (FPM): 2000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.
Temperature Rating (°F): 250 °F

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MS2 ECF Series

Class II 1.5 Hour Tunnel-Type Combination Fire-Smoke Damper (3" Grille Clearance)

MS2C2I250, MS2C2K250

Maximum Velocity (FPM): 2000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.
Temperature Rating (°F): 250 °F

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MS2

Class II 1.5 Hour Single Thickness Blade Combination Fire-Smoke Damper

MS2H250, MS2H350, MS2V250, MS2V350

Maximum Velocity (FPM): 3000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 3000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.
Temperature Rating (°F): 250 °F to 350 °F

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MS2GF ESB Series

Class II, 1.5 Hour Front Access Grille Fire-Smoke Damper (3.5-inch setback)

MS2HD250, MS2HD350, MS2VF250, MS2VF350

Maximum Velocity (FPM): 2000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.
Temperature Rating (°F): 250 °F to 350 °F

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MS2GF SSB Series

Class II, 1.5 Hour Front Access Grille Fire-Smoke Damper (1.5-inch setback)

MS1HE250, MS1HE350, MS1VG250, MS1VG350

Maximum Velocity (FPM): 2000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.
Temperature Rating (°F): 250 °F to 350 °F

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MT1

Class I, 3 Hour Single Thickness Blade Combination Fire-Smoke Damper

MT1H250, MT1H350, MT1V250, MT1V350

Maximum Velocity (FPM): 3000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 3000 fpm (FPM)
Fire Resistance Rating (hrs): 3 hrs.
Temperature Rating (°F): 250 °F to 350 °F

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MT2

Class II, 3 Hour Single Thickness Blade Combination Fire-Smoke Damper

MT2H250, MT2H350, MT2V250, MT2V350

Maximum Velocity (FPM): 3000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 3000 fpm (FPM)
Fire Resistance Rating (hrs): 3 hrs.
Temperature Rating (°F): 250 °F to 350 °F

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MR1

Class I, 1.5 Hour Single Thickness Blade Mini Combination Fire-Smoke Damper

MR1H250, MR1H350, MR1V250, MR1V350

Maximum Velocity (FPM): 2000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .03 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.
Temperature Rating (°F): 250 °F to 350 °F

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MS2(SS)

Class II 1.5 Hour Single Thickness Blade Stainless Steel Combination Fire-Smoke Damper

MS2H250SS, MS2H350SS, MS2V250SS, MS2V350SS

Maximum Velocity (FPM): 3000 fpm

Material Options: 304 Stainless Steel, or 316 Stainless Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 3000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.
Temperature Rating (°F): 250 °F to 350 °F

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KH1

Class I Single Thickness Blade Smoke Damper

KH1250, KH1350

Maximum Velocity (FPM): 2000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Temperature Rating (°F): 250 °F to 350 °F

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KH1 EP Series

Class I Single Thickness Blade Smoke Damper (EP Series)

KA1H25034, KA1H35034

Maximum Velocity (FPM): 3000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 3000 fpm (FPM)
Temperature Rating (°F): 250 °F to 350 °F

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KH1(SS)

Class I Single Thickness Blade Stainless Steel Smoke Damper

KH1250SS

Maximum Velocity (FPM): 3000 fpm

Material Options: 304 Stainless Steel
Blade Type: Single Thickness Blade
Pressure Drop: .05 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 3000 fpm (FPM)
Temperature Rating (°F): 250 °F

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KH2

Class II Single Thickness Blade Smoke Damper

KH2250, KH2350

Maximum Velocity (FPM): 2000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Frame Shape: Rectangular
Pressure Drop: .06 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Temperature Rating (°F): 250 °F to 350 °F

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KR1

Class I Single Thickness Blade Smoke Damper w/ Integrated Sleeve

KR1H250, KR1H350, KR1V250, KR1V350

Maximum Velocity (FPM): 2000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .03 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Temperature Rating (°F): 250 °F to 350 °F

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KR2

Class II Single Thickness Blade Smoke Damper w/ Integrated Sleeve

KR2H250, KR2H350, KR2V250, KR2V350

Maximum Velocity (FPM): 2000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Pressure Drop: .03 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 2000 fpm (FPM)
Temperature Rating (°F): 250 °F to 350 °F

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38MD

3 Hour Rated Non-Motorized Single Thickness Blade Dynamic Fire Damper

38MDH, 38MDV

Maximum Velocity (FPM): 4000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Maximum Velocity (FPM): 4000 fpm (FPM)
Fire Resistance Rating (hrs): 3 hrs.

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17MD(SS)

1.5 Hour Rated Non-Motorized Stainless Steel Dynamic Fire Damper

17MDHSS, 17MDVSS

Maximum Velocity (FPM): 2000 fpm

Material Options: 304 Stainless Steel, or 316 Stainless Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Maximum Velocity (FPM): 2000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.

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17MD(SS) HP Series

1.5 Hour Rated Non-Motorized Stainless Steel Dynamic Fire Damper (HP Series)

17MDHSS4, 17MDVSS4

Maximum Velocity (FPM): 4000 fpm

Material Options: 304 Stainless Steel, or 316 Stainless Steel
Blade Type: Single Thickness Blade
Blade Action: Parallel
Frame Shape: Rectangular
Maximum Velocity (FPM): 4000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.

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17MD

1.5 Hour Rated Non-Motorized Single Thickness Blade Dynamic Fire Damper

17MDH, 17MDV

Maximum Velocity (FPM): 2000 fpm

Material Options: Galvanized Steel
Blade Type: Single Thickness Blade
Frame Shape: Rectangular
Maximum Velocity (FPM): 2000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.

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