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Galvanized steel retaining angle for HVAC dampers

Dayton

Dayton 2TGH5 Retaining Angle HVAC Control

SKU CH-NBM1-PCVY9

Galvanised steel retaining angle for horizontal or vertical damper mounting, UL 555 rated

  • Galvanised steel resists corrosion
  • 20 gauge thickness provides structural rigidity
  • UL 555 listing confirms fire-damper compliance
  • Horizontal or vertical mounting suits duct orientation
  • Retaining angle secures damper blades in place

Retaining Angle for HVAC Dampers

The Dayton 2TGH5 retaining angle secures damper blades in commercial HVAC installations. It is built from 20 gauge galvanised steel and meets UL 555 safety standards. The component suits contractors fitting fire or smoke dampers in ductwork.

Sustained Load Behaviour

Galvanised steel resists corrosion during long exposure to humid airstreams inside duct systems. The 20 gauge thickness maintains structural rigidity under continuous air pressure without permanent deformation. UL 555 compliance confirms the angle retains its shape during the elevated temperatures of standard fire tests.

Upgrade Context

This angle replaces damaged or corroded retaining hardware on existing damper assemblies. The jump is worth it when inspection reveals bent brackets that no longer hold blades square. It is not for installers who need fusible-link actuation or motorised damper operators.

Highlights

  • Galvanised steel resists corrosion
  • 20 gauge thickness provides structural rigidity
  • UL 555 listing confirms fire-damper compliance
  • Horizontal or vertical mounting suits duct orientation
  • Retaining angle secures damper blades in place

Specifications

BrandDAYTON

Questions about this item

Does the 20 ga galvanized steel angle generate any heat or noise when the damper runs continuously?

The retaining angle is a passive 20 ga galvanized steel bracket with no moving parts, so it produces no heat and makes no noise during continuous damper operation.

What mounting hardware must I already have to install this vertical or horizontal retaining angle?

You will need suitable fasteners — screws, bolts or rivets — for the duct or sleeve material, because the angle ships without any mounting hardware.

Will this UL 555 rated angle fit the older damper frames I am keeping in place?

The angle measures 15 3/4 in wide by 7 3/4 in high and mounts vertically or horizontally, so it matches existing frames that share those dimensions and the UL 555 standard.

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