SG400 Transfer Grille, Round Perforated Pattern, Steel

Security Grilles

Ideal for medium and maximum-security applications, SG400 grilles are designed with two face plates welded to each end of the sleeve for block wall applications. The 5/16” round holes ensure maximum airflow while inhibiting the concealment of dangerous items and contraband.

Face plate is composed of 3/16” steel with 5/16” diameter round holes on 7/16” staggered centers and 1” border
Sleeve is constructed with 3/16” steel and is available in 6”, 8”, 10”, 12” and 18” lengths
Anodic acrylic paint electrocoat finish ensures durability of the product

SG400 Transfer Grille, Round Perforated Pattern, Steel

Product Application

If you are worried about undesired access to the ductwork and the risk of vandalism, get hold of our SG400 security transfer grille. This perforated grille provides protection for your medium to maximum-security facilities with the added benefit of smooth flow of large volumes of air. It prevents damages caused through access to the ductwork and restricts the concealment of dangerous objects. It will give effective protection in facilities like prisons, psychiatric hospitals, schools, and sports venues.

Features

Available sizes are 6”x4” to 30”x30” in 2” increments. 9”x9” is the only odd size available
The standard finish is White (WH) or Mill (ML)
The grille offers optional steel anchor bars (AB) of 3/4” diameter x 3” long that are positioned 3” from back of face plate on top and bottom of sleeve

The sleeve is stitch welded to each face and along the seams of the sleeve
The electrocoat finish is in an anodic acrylic paint baked at 315°F for 30 minutes with a pencil hardness of HB to H
Available optional steel security bars (SB) of 3/4” diameter on a maximum of 6” centers that are tack welded twice at each intersection and welded completely around at the sleeve joint