Aldes AU 661 Anti-Return Grille

Model: 11002494

Product Overview

The AU 661 is an anti-return grille designed for installation in ductwork to create positive or negative pressure within tertiary buildings. It is suitable for both new construction and renovation projects in tertiary building environments.

Product Description

The AU 661 features a frame made of galvanized steel and mobile blades crafted from profiled aluminum. The blades are equipped with a sealing strip on their inner edge. The grille is fixed using visible screws on the frame. The blades are mounted on nylon bushings and connected by linkages. Available dimensions range from 200 x 200 mm to 1600 x 2000 mm, with increments of 25 mm for width (L) and 150 mm for height (H).

Key Features

Anti-return grille for creating negative or positive pressure in ductwork.
Mobile blades made of profiled aluminum with an inner edge sealing strip.
Nylon bushing mounted blades connected by linkages.
Galvanized steel frame with a U-profile.
Standard finish: raw aluminum.

Application Areas

New construction
Renovation
Tertiary building premises

Options

Designation	Option Code
Counterweight K1	K1
Counterweights K1 and K2	K1+K2
Counterweight K2	K2
Other RAL group 1	RAL1
Other RAL group 2	RAL2
Other RAL group 3	RAL4

Note: K1 counterweight facilitates opening for low pressures (not available for H < 400 mm). K2 counterweight facilitates closing for high pressures. K1 + K2 double counterweight is for horizontal mounting.

General Data

Reference: 11002494

Main Material: Aluminum

Diagram: The product features a diagram illustrating its components and dimensions, including K1 and K2 counterweights.

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