Greenheck SDPF-U Spiral Duct Grille
Model: SDPF-U / SDPF-U AS
Universal Flange, Perforated Face, Supply & Return
Product Features
- Universal frame style fits a range of duct diameters.
- Perforated face panel optimizes airflow.
- Available in steel or aluminum construction.
- Includes foam gasket for a tight fit onto round ductwork.
- Units can come with an air scoop for airflow adjustment (Supply models).
Finishes
- 01 - White (Suitable for a primer coat if field painting is required)
- 03 - Black
- 02 - Satin Silver
- 04 - Clear Anodized
- 28 - Custom Color
- 24 - Mill (Available for aluminum construction only)
Optional Accessories
- OBDE - Extruded Aluminum Opposed Blade Damper
- OBDA - Aluminum Opposed Blade Damper
Visualizations and Dimensions
CFD Throw Pattern Visualization
This visualization shows airflow patterns. The 'Side View' depicts the grille's performance from the side, illustrating airflow direction and velocity. The color gradient indicates velocity, ranging from 'High' (e.g., red/yellow) to 'Low' (e.g., blue).
SDPF-U Dimensions and Views (Return)
Side View
Shows a profile of the grille. Key dimensions include: Duct Opening Width = Listed Width, Neck Width = List Width - 1/2, and vertical measurements of 5/16" and 1 1/2". Airflow is indicated as 'Return'.
3D View
A three-dimensional perspective of the grille attached to a round duct, illustrating airflow entering or exiting the grille. Shows the connection to the duct and the perforated face.
Face View
The front view of the grille. It highlights the perforated face (51% perforated) and mounting screw holes. Dimensions are: Overall Width = Listed Width + 3. A foam perimeter gasket is visible.
End View
The profile view from the end. Key dimensions include: Neck Height = Listed Height - 1/2, Duct Opening Height = Listed Height. The foam perimeter gasket is shown.
SDPF-U AS Dimensions and Views (Supply)
Similar to SDPF-U, but for supply applications. Includes an 'Air Scoop' which is standard construction on supply only, and an 'Extractor Adjustment Rod (Supply Only)'.
Side View
Shows the grille profile with an air scoop. Key dimensions include: Duct Opening Width = Listed Width, Neck Width = List Width - 1/2, and vertical measurements of 5/16" and 1 1/2". Airflow is indicated as 'Supply'.
3D View
A three-dimensional perspective of the grille attached to a round duct, illustrating airflow exiting the grille. Shows the connection to the duct and the perforated face.
Face View
The front view of the grille. It highlights the perforated face (51% perforated) and mounting screw holes. Dimensions are: Overall Width = Listed Width + 3. A foam perimeter gasket is visible.
End View
The profile view from the end. Key dimensions include: Neck Height = Listed Height - 1/2, Duct Opening Height = Listed Height. The foam perimeter gasket is shown.
Universal Spiral Table
This table provides duct diameter ranges for different listed grille heights.
| Listed Height | Duct Diameter Range (inches) - Minimum | Duct Diameter Range (inches) - Maximum |
|---|---|---|
| 3 | 6 | 54 |
| 4 | 10 | 54 |
| 6 | 14 | 54 |
| 8 | 20 | 54 |
| 10 | 30 | 54 |
| 12 | 40 | 54 |
