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DD • Double Deflection Grille

  • HVC
  • Double Deflection Grille
  • Aluminium
  • RAL9010 White
  • Two banks of individually adjustable blades set at 90° to each other

Double deflection grilles have a double bank of individually adjustable blades, held in place by high tensile spring wire, hidden behind the grille flange.

Application

Double deflection grilles allow further control over throw than single deflection grilles.
Blades are secured with high tensile spring wire, which provides enough force to keep them in their assigned position, while also allowing easy manual adjustment.
The maximum free area of 80% is identical to that of single deflection grilles, however noise generation and pressure drops are slightly higher, making double deflection grilles more suitable for supply applications.

Material

  • Aluminium frame and blades.

Colour

  • Polyester powder coated to RAL 9010 White

Composition

  • Standard Frame: 32BD (32mm bevelled large)
  • Free area - approx 80% maximum
Options
  • 25F (25mm flat)

Mounting

  • Standard Fixing: FH - Countersunk fixing holes
Options
  • Push-in clip method - PC
  • Concealed fixings - CF

Order Example

DD - 32BD - FH - RAL9010


Explanation:

DD - Double deflection grille

D- Damper

32BD - 32mm bevelled

FH - Countersunk fixing holes

RAL9010 - Polyester powder coated finish

Selection Program
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