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HBT-221 : Bubble Tight Isolation Damper

HBT-221 : Bubble Tight Isolation Damper

The HBT-221 is an isolation damper engineered for critical isolation and decontamination applications where containment integrity is essential. Designed to deliver bubble-tight leakage performance in accordance with AMCA 500-D, it provides exceptional sealing capability to help prevent cross-contamination and air migration. The HBT-221 offers dependable, high-performance isolation for facilities requiring stringent environmental control and regulatory compliance.

Product Highlights

Application
Bubble Tight
Maximum Pressure Rating (in. wg.)
10
Factory Tested
Leakage
Cycle
Blade Type
Flat Dual Skin with Perimeter Seal
Frame Type
Fully Seal-Welded Flanged Channel
Mounting Orientation
Horizontal
Vertical
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Features

Actuator Axle Seal Blade Seals Blades Frame Paint Finishes
Standard
Optional

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Product Details

Maximum Pressure Rating (in. wg.)

10

Maximum Velocity (fpm)

4,000

Maximum Temperature (°F)

250

Leakage Rating

0 cfm/ft² @ 10 in. wg.

Certifications

Bubble Tight per AMCA 500-D

Blade Material

304SS

316SS

Painted Steel

Frame Material

304SS

316SS

Painted Steel

Documents

Drawings

Static Model File Type Action Type
Revit icon Revit .RFA eMail icon Request Drawing
3D CAD 3D CAD .DWG eMail icon Request Drawing
3D CAD 2D CAD .DWG

Media

HBT-221 Multi-Blade Rectangular Bubble Tight Damper

Industrial Dampers - Bubble-Tight Test