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Rectangular galvanized steel fire damper with stainless spring and fusible link

Dayton

Dayton Rectangular Fire Damper 11-3/4x15-3/4 In 22 ga Galvanized Steel

SKU CH-W45V-6RDET

Rectangular fire damper sized 11 by 15 inches in 22-gauge galvanised steel with stainless steel closure spring and UL fusible link

  • TypeDynamic With Fire Resistance Rating Less Than 3 Ho
  • Dynamic mounting works in vertical or horizontal ducts
  • 22 ga galvanised steel resists corrosion in HVAC systems
  • Stainless steel closure spring ensures reliable blade operation
  • UL fusible link triggers automatically in fire conditions
  • Rectangular 11 by 15 inch frame fits standard duct openings

Dayton Rectangular Fire Damper 11-3/4x15-3/4

This Dayton rectangular fire damper measures 11-3/4 by 15-3/4 inches and is constructed from 22 gauge galvanized steel. It is designed for installation in HVAC duct systems to help maintain fire-rated barriers. The unit carries a dynamic fire resistance rating of less than three hours. It suits commercial and industrial projects requiring UL-listed protection.

Dynamic mounting vertical horizontal stainless

The damper supports dynamic mounting in either vertical or horizontal orientations to match the duct layout. A stainless steel closure spring is included to ensure reliable blade operation during a fire event. The galvanized steel frame integrates directly into standard rectangular ductwork. No additional actuation hardware is referenced in the specifications.

Upgrades from static or unrated duct penetrations

This dynamic model replaces static dampers or unrated openings where airflow must continue during a fire alarm condition. The upgrade is worth it when building codes require a dynamic rating with a UL fusible link for automatic release. It does not address applications needing a fire resistance rating of three hours or greater. Buyers needing larger dimensions or different gauge thicknesses should verify availability separately.

Highlights

  • Dynamic mounting works in vertical or horizontal ducts
  • 22 ga galvanised steel resists corrosion in HVAC systems
  • Stainless steel closure spring ensures reliable blade operation
  • UL fusible link triggers automatically in fire conditions
  • Rectangular 11 by 15 inch frame fits standard duct openings

Specifications

BrandDAYTON
TypeDynamic With Fire Resistance Rating Less Than 3 Ho

Questions about this item

How long does the UL fusible link hold before the damper closes under sustained fire exposure?

The UL fusible link is rated for fire resistance of less than three hours, so it will release and close the damper within that period.

How much noise or heat does the stainless steel closure spring generate during continuous operation?

The stainless steel closure spring is a passive mechanical component and produces no noise or heat while the damper remains open.

What duct dimensions must already exist for this 11-3/4 by 15-3/4 inch damper to fit?

The damper requires a rectangular duct opening of exactly 11-3/4 inches by 15-3/4 inches for proper installation.

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