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Home / Grilles / Single deflection grille for circular ducts RA-1
grila rectangulara RA-1

Single deflection grille for circular ducts RA-1

  • Description
  • Tehnical specifications
  • Functional Parameters
  • Accesories
  • Installation

Description


RA-1 is a rectangular grille, made of galvanized steel, with a row of adjustable blades.
The grille is recommended for longitudinal mounting on rigid circular duct.
It is used for introduction and evacuation of air in ventilation and air conditioning systems.

The grille is equipped with a row of individually adjustable blades that allow the direction of the air jet.
The blades are parallel to the height and easy to adjust.
The product is delivered with a sealing gasket positioned on the frame, mounting holes and fixing screws.


Technical drawing

 



The legend
Ak [m²] - The free surface
X [m] - The length of the air jet at a speed of 0.25 m/s
NR [dB (A)] - Noise level without room attenuation
Veff [m/s] - The effective air speed in the grille
∆Pt [Pa] - Pressure loss

For more sizes see the Technical Data Sheet (bottom of the page).

Opposed blade damper (OBD)


The damper is provided with opposable blades and gears, it is mounted on the grille connection.
 

Longitudinal installation on rigid circular duct. Fixing the grille is done with screws.

Installation on circular duct

Documentation

  • Single deflection grille for circular ducts RA-1 - Technical Data Sheet

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