Air terminal devices for supply and return grilles

 

Description

Air terminal units of UDG series are constituted by a supply grille with opposite movement damper or return grille complete of insulated plenum.

UDG units are applicable on wall for supply or extract air.

Plenum or calm box, allows to eliminate or reduce the non-uniformity of the velocity profile of the air coming from the supply duct. In this way, the throw characteristics of the diffuser will comply with those laid without asymmetry or directionality caused by unwanted velocity gradients.

Cestaro Bernardo Srl is able to offer in a short time both standard and special constructions of dimensional and construction specifications required by the customer.

 

Structure and dimensions

Supply grille

Material:                         Aluminum

Standard finish:            Anodized or white RAL 9010

Fixing:                             by clips

The construction is with individually adjustable blades with aerodynamic section, pitch 20 mm, single or double-line row complete of calibration damper and insulated plenum with rear connection.

For special construction, the supply grille can be made of galvanized or stainless steel, the surface finish cab be carried out in RAL colours not standard by powder painting. The grille can be supplied with holes on the frame for fixing by screws.

 
Calibration damper

Material:                       galvanized steel

Fixing:                           by dap joint

For special construction, the damper can be made of aluminium.

 
Return grille

Material:                          Aluminum

Standard finish:             Anodized or white RAL 9010

The construction is with fixed and 45° inclined fins, step 25 mm.

For special construction, the intake grille can be made of galvanized or stainless steel, the surface finish cab be carried out in RAL colours not standard by powder painting. The grille can be supplied with holes on the frame for fixing by screws and with calibration damper.

 
Egg crate grille

Material:                       aluminium

Finish:                          anodized natural

Fixing:                           by clips or screws

For special construction, the supply grille can be made of galvanized or stainless steel, the surface finish cab be carried out in RAL colours not standard by powder painting. The grille can be supplied with holes on the frame for fixing by screws and with filter.

 
Insuilated plenum

Material:                       galvanized steel

Isolation:                      out side

Fixing:                           by screws

Connection:                 rear

For special construction, the plenum can be supplied without isolation, with equalizer, with damper and lateral connection (long or short side).

 
Heat insulating material

Polyethylene adhesive in Class "1" reaction to fire (DM 26/06/1984). Applying external standard. Internal application on request.

 
Use condition

Maximum operating temperature: 70 °C

 

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