SDSTRJ Radius Spiral Duct Drum Grille Single Vane

Specialty Products

Perfect for a variety of architectural and engineering design conditions, SDSTRJ Roto-Jet® drum grilles can be installed in both horizontal and vertical orientations. These grilles allow you to control the length and direction of airflow from a single bank of adjustment.

The unit is designed to handle large air capacity requirements and long throws
Adaptable to a variety of duct sizes without requiring any expensive duct taps
Unique extruded aluminum universal mounting frame offers a cost-effective installation

SDSTRJ Radius Spiral Duct Drum Grille Single Vane

Product Application

SDSTRJ spiral duct drum grilles are built with a single bank of adjustment vanes that offer optimum control over the direction and length of air streams. They are versatile, particularly during installation in that they can be positioned horizontally or vertically to match the building’s architectural design. They are most commonly used in large but enclosed spaces like factories or industries, indoor stadiums, and industrial facilities.

Features

All frame joints are to be mechanically fastened.
Standard finish is ML -Mill
Damper-Extractor (DMPX) is available as an accessory
Recommended duct opening should be listed width plus 1/2" and listed height plus 1/2"
Adjustment of vanes may be used to vary the lateral spread of the discharge air rate of diffusion and mixing along with distance and throw

It can be operated at high discharge velocities
The outer borders are curved to match the specified duct diameter, and are available in 2” increments
Available lengths for each drum size are 12", 18", 24", 30", 36", 42", 48", and 60"
The rotating barrel is adjustable to permit the projection of air 30-degree above or below the length of the unit, or 60-degree total
The ends of the barrel are provided with removable pattern controllers to ensure positive response when pattern adjustment is needed