APPLICATION AREAS
This is a single-row curved-blade grille with an integrated volume damper. It is used as a return air grille. To allow installation on cylindrical air ducts, it is manufactured according to the required duct diameter. The center blades are designed to be adjustable for air direction control. For airflow regulation, a volume damper is installed at the rear of the grille. In these grilles, airflow adjustment is performed by moving the adjustment key—mounted between the blades on the front face—left or right with the help of a screwdriver.

IMPORTANT NOTE
For this type of grille, the duct diameter to which the grille will be mounted must be specified at the time of order. Depending on the installation method, the specified dimensions are given as (L × H), where L = width and H = height. As standard, production can be carried out according to net dimensions.

FEATURES
The grilles are manufactured using specially rolled aluminum profiles. After applying special filler to the joints between the grille and the outer frame and sanding the surface, they are chemically cleaned and coated with electrostatic powder paint. Standard dimensions are provided in the tables. Custom production in any size is available upon request.

INSTALLATION MATERIALS, PACKAGING & TRANSPORTATION
Mounting screws are supplied with the grilles. Packaging is carried out using polyethylene film. Since the grilles are fragile and may deform, transportation must be handled with care.

SAMPLE ORDER FORMAT
For this type of grille (wall-mounted), the first dimension written, 400 mm, refers to the horizontal size (blade length), and the second dimension, 200 mm, refers to the vertical size.
EMT-R-UP 400 × 200 – 1 PC

The standard paint color is RAL 9010. Painting in all RAL colors is available upon request.