SDGR - Spiral Duct

Product Information

View Performance Data SDGR - Spiral Duct
Model

Spiral Duct Register
Steel Construction SDGR ST
Aluminum Construction SDGR AL
Galvanized Steel SDGR GV

Price SDGR Spiral Duct Return Grilles were specifically designed to be mounted on round or spiral ducts without the use of any transitions. Gaskets placed at each end of the grille allow it to blend seamlessly with the duct. An additional gasket placed around the inlet provides an air seal between the grille and the duct. The SDGR series is available in steel (SDGR ST ) or galvanized steel (SDGR GV) construction, and features high quality formed frames. The galvanized steel model (SDGR GV) can be installed unpainted; it is also an excellent choice for applications where the grille needs to be field painted to match duct finish.
 
Features
  • Available in either steel (SDGR ST) or galvanized steel (SDGR GV) construction.
  • Closed cell foam gasket attached to the border provides a tight seal around openings in the duct.
  • Perforated screen, staggered round
    3/16" (5) hole on 1/4" (6) centers.
Mounting / Finish Options

Fastening
Countersunk screwholes A
Finish
White Powder Coat B12
For optional and special finishes see color matrix.
 

    Product Selection Checklist

  1. Select Unit Size based on desired performance characteristics.
  2. Select Finish.
Example: SDGR // 12 // 4 // GV // A /B12


Recommended SDGR Size
for Minimum Duct Diameter
Duct Size (in) ø Min. Nom.
Width (in)
Max. Nom.
Width (in)
8" - 13" -- 4"
14" - 21" 4" 6"
22" - 31" 4" 8"
32" - 41" 4" 10"
42" - Over 4" 12"
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