SG200 Grille, Round Perforated Pattern, Steel

Security Grilles

Our top-rated SG200 security grille has an all-welded construction and is specially designed for medium and maximum-security applications. The grille is constructed with 3/16” steel with 5/16” diameter round holes on 7/16” staggered centers with a 1” border.

The 5/16” round holes offer a greater free area and maximize the airflow
An optional front or rear operated opposed blade damper can be welded to the sleeve
Can be utilized for supply and return applications

SG200 Grille, Round Perforated Pattern, Steel

Product Application

Traditional grilles do not serve the purpose in spaces with special requirements like prisons. Correctional facilities are notorious for having inmates hide dangerous objects in the vents. Our SG200 grilles help solve this problem with an all-welded construction and a face plate with small round holes—ensuring security while not inhibiting airflow.

Features

This grille is available in sizes between 6”x4” and 30”x30”. Sizes are available in 2” increments only. 9x9 is the only odd size available
The grille provides optional steel security bars (SB) of 3/4” diameter on a maximum of 6” centers tack welded twice at each intersection and welded completely around at the sleeve joint
Steel anchor bars (AB) 3/4” diameter x 3” long positioned 3” from back of face plate on top and bottom of sleeve is available as an accessory
The standard finish is White (WH) electrocoat in an anodic acrylic paint, baked at 315°F for 30 minutes with a pencil hardness of HB to H

Sleeve is constructed of 3/16” steel and is available in 6”, 8”, 10”, 12” and 18” lengths
Steel angle frame (AF) 1-1/2”x1-1/2”x3/16” is shipped loose and unpainted for field mounting is offered as an accessory
Steel opposed blade (SDFO - face operated or SDRO - rear operated) damper is welded into sleeve, and is constructed of heavy-gauge steel
The manufacturer provides published performance data tested in accordance with ANSI/ASHRAE Standard 70-1991 at isothermal conditions