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Dayton 2TGG8 galvanised steel retaining angle for vertical or horizontal mounting

Dayton

Dayton 2TGG8 Retaining Angle Vertical Horizontal HVAC Control

SKU CH-MDZ0-A5NB4

Galvanised steel retaining angle for horizontal or vertical damper mounting, 20 ga thickness, UL 555 listed

  • Galvanised steel resists corrosion in ductwork
  • 20 ga thickness gives rigid damper support
  • Mounts vertically or horizontally for flexible installs
  • UL 555 listing confirms fire-damper compliance
  • 11 in width spans standard duct openings

Retaining Angle for HVAC Dampers

The Dayton 2TGG8 retaining angle secures damper assemblies in commercial HVAC systems. It is built from 20 ga galvanised steel for corrosion resistance and structural rigidity. The component meets UL 555 safety standards for fire damper installations. Mechanical contractors and facility maintenance teams use it for new work or replacement jobs.

Mounts Horizontally or Vertically

This angle accepts either horizontal or vertical mounting orientations to match the damper layout. The 11 3/4 in width and 5 3/4 in height align with standard damper frame dimensions. Galvanised construction eliminates the need for field painting or additional corrosion protection. Installers fasten it directly to the ductwork or sleeve without specialised tooling.

Sustained Exposure in Fire-Rated Assemblies

Under continuous thermal cycling the galvanised coating maintains adhesion and protects the base steel. UL 555 compliance confirms the angle retains its shape during the elevated temperatures of a fire event. The 20 ga thickness resists deflection when the damper blades operate repeatedly over years of service. No fusible link is integrated, so the angle serves purely as a structural retainer.

Highlights

  • Galvanised steel resists corrosion in ductwork
  • 20 ga thickness gives rigid damper support
  • Mounts vertically or horizontally for flexible installs
  • UL 555 listing confirms fire-damper compliance
  • 11 in width spans standard duct openings

Specifications

BrandDAYTON

Questions about this item

How much clearance does the 11 3/4 in width leave for duct connections?

The 11 3/4 in overall width sets the maximum opening the angle can span; ductwork must fit within that dimension.

Does the 20 ga galvanized steel heat up enough to affect nearby insulation during continuous airflow?

Galvanized steel conducts heat, but the thin 20 ga material and open mounting keep surface temperature close to the airstream temperature.

Which UL 555 rated damper frames accept this retaining angle?

The angle is listed to UL 555 and mounts horizontally or vertically on compatible fire damper frames.

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