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Rectangular galvanized steel fire damper, 22 gauge construction

Dayton

Dayton Rectangular Fire Damper 5-3/4 x 11-3/4 In 22 ga Galvanized Steel

SKU CH-7BSS-BTXQ4

Rectangular fire damper rated for under three hours, built from 22 ga galvanised steel

  • TypeStatic With Fire Resistance Rating Less Than 3 Hou
  • 22-gauge galvanized steel resists corrosion in ductwork
  • Static fire damper rated for under three hours
  • Rectangular 5-3/4 by 11-3/4 inch fits standard HVAC openings
  • New condition ensures reliable operation from installation
  • Designed for integration into fire-rated duct systems

Rectangular Fire Damper 5-3/4 x 11-3/4 In

This Dayton rectangular fire damper fits HVAC duct systems requiring a static fire resistance rating of less than three hours. It is intended for commercial and industrial installations where building codes mandate fire-rated duct penetrations. The unit installs directly into rectangular ductwork to help contain fire spread.

22 ga Galvanized Steel Construction

The damper body uses 22 gauge galvanized steel for corrosion resistance in typical indoor duct environments. Its rectangular flange profile allows secure fastening to matching duct dimensions with standard mechanical fasteners. The static design contains no moving actuators, so inspection focuses on blade alignment and frame integrity.

Static Fire Rating Under Three Hours

The sole decisive specification is the static fire resistance rating of less than three hours, which determines code compliance for the intended barrier. Projects requiring a three-hour or higher rating must select a different damper assembly. Verify the required rating with local authority having jurisdiction before purchase.

Highlights

  • 22-gauge galvanized steel resists corrosion in ductwork
  • Static fire damper rated for under three hours
  • Rectangular 5-3/4 by 11-3/4 inch fits standard HVAC openings
  • New condition ensures reliable operation from installation
  • Designed for integration into fire-rated duct systems

Specifications

BrandDAYTON
TypeStatic With Fire Resistance Rating Less Than 3 Hou

Questions about this item

What fire resistance rating does the static damper carry?

The unit is rated for less than three hours of fire resistance.

What are the exact duct dimensions the 5-3/4 by 11-3/4 inch frame fits?

The rectangular frame matches a 5-3/4 by 11-3/4 inch duct opening.

How is the 22 ga galvanized steel damper secured in the duct?

Fasten the frame to the duct with approved screws or rivets; the common error is omitting the required perimeter fasteners.

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