Quick Reference
Rectangular Industrial Dampers Quick Reference System

Rectangular Industrial Dampers
Model | Frame Depth | Blade Style | Max. Pressure (W.G.) | Max. Velocity (FPM) | Operator | Stainless Option | Submittal | Revit |
---|---|---|---|---|---|---|---|---|
H-420 | 8" | 3-V / Opposed | 10 | 4,000 | Manual, Electric, or Pneumatic | YES | ![]() |
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H-421 | 8" | 3-V / Parallel | 10 | 4,000 | Manual, Electric, or Pneumatic | YES | ![]() |
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AH-620 | 8" | Airfoil / Opposed | 13 | 6,000 | Manual, Electric, or Pneumatic | YES (Frame only) | ![]() |
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AH-621 | 8" | Airfoil / Parallel | 13 | 6,000 | Manual, Electric, or Pneumatic | YES (Frame only) | ![]() |
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H-620 | 8" | 3-V / Opposed | 21 | 6,000 | Manual, Electric, or Pneumatic | YES | ![]() |
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H-621 | 8" | 3-V / Parallel | 21 | 6,000 | Manual, Electric, or Pneumatic | YES | ![]() |
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NAH-720-1 | 8" | Airfoil / Opposed | 20 | 4,500 | Manual, Electric, or Pneumatic | YES | ![]() |
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NAH-721-1 | 8" | Airfoil / Parallel | 20 | 4,500 | Manual, Electric, or Pneumatic | YES | ![]() |
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NAH-720-2 | 8" | Airfoil / Opposed | 30 | 6,000 | Manual, Electric, or Pneumatic | YES | ![]() |
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NAH-721-2 | 8" | Airfoil / Parallel | 30 | 6,000 | Manual, Electric, or Pneumatic | YES | ![]() |
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NAH-720-3 | 8" | Airfoil / Opposed | 35 | 6,000 | Manual, Electric, or Pneumatic | YES | ![]() |
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NAH-721-3 | 8" | Airfoil / Parallel | 35 | 6,000 | Manual, Electric, or Pneumatic | YES | ![]() |
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NAH-720-4 | 8" | Airfoil / Opposed | 40 | 8,000 | Manual, Electric, or Pneumatic | YES | ![]() |
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NAH--721-4 | 8" | Airfoil / Parallel | 40 | 8,000 | Manual, Electric, or Pneumatic | YES | ![]() |
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