Backdraft & Pressure Relief Dampers
Designed to allow airflow in one direction and prevent reverse airflow. Models are available with many different mounting orientations, airflow directions,
operation types, and performance ratings.
Models WD/ES/PS/EM/HB/HPR
Exhaust Dampers
Exhaust backdraft damper models are designed to allow exhaust airflow but prevent airflow in the reverse direction. Typically used with a fan or power roof exhauster. Vertical or horizontal mount.
Intake Dampers
Intake backdraft damper models are designed to allow supply airflow into a building but prevent airflow in the reverse direction. Typically used with a fan or gravity intake ventilator. Vertical or horizontal mount.
Downloadable Greenheck Literature
Viewable with the Adobe Acrobat Reader
(Click here for more information or to download the Acrobat reader)
- Catalog:
- Dampers for Centrifugal Fans (622k)
- Installation Instructions:
- End Switch Kit for WD Series (72k)
- MP-100A Motor Pack (76k)
- MP-200/210 Motor Pack (83k)
- MP-220A Motor Pack (188k)
- MP-300/310 Motor Pack (71k)
- PS Series Motor Packs (94k)
- Specification Sheets:
- Exhaust Dampers, Vertical Mount, Level I (to 2000 fpm 2 in. wg)
- Fabricated, Flange on Intake (WD-300) (102k)
- PVC Backdraft Damper (PS-32) (157k)
- Fabricated, Flange on Discharge (WD-320) (102k)
- Fabricated, No Flange (WD-330) (102k)
- Extruded, No Flange (ES-30) (43k)
- Extruded, Flange on Discharge (ES-31) (43k)
- Extruded, Flange on Intake (ES-32) (43k)
- Exhaust Dampers, Vertical Mount, Level II (to 3000 fpm 4 in. wg)
- Extruded, No Flange (EM-30) (139k)
- Extruded, Flange on Discharge (EM-31) (139k)
- Extruded, Flange on Intake (EM-32) (139k)
- Exhaust Dampers, Horizontal Mount, Level I (to 2000 fpm 2 in. wg)
- Fabricated, No Flange (WD-100) (88k)
- Fabricated, Flange on Discharge (WD-110) (88k)
- Fabricated, Flange on Intake (WD-120) (88k)
- Extruded, No Flange (ES-10) (49k)
- Extruded, Flange on Discharge (ES-11) (49k)
- Extruded, Flange on Intake (ES-12) (49k)
- Exhaust Dampers, Horizontal Mount, Level II (to 3000 fpm 4 in. wg)
- Extruded, No Flange (EM-10) (150k)
- Extruded, Flange on Discharge (EM-11) (150k)
- Extruded, Flange on Intake (EM-12) (150k)
- Intake Dampers, Vertical Mount, Level I (to 2000 fpm 2 in. wg)
- WD-200 series, motorized (150k)
- Gravity, No Flange (WD-400) (112k)
- Gravity, Flange on Discharge (WD-420) (112k)
- Gravity, Flange on Intake (WD-430) (112k)
- Intake Dampers, Horizontal Mount, Level I (to 2000 fpm 2 in. wg)
- WD-200 series, motorized (150k)
- Gravity, No Flange (WD-410) (112k)
- Extruded, No Flange (ES-40) (50k)
- Extruded, Flange on Discharge (ES-41) (50k)
- Extruded, Flange on Intake (ES-42) (50k)
- Intake Dampers, Horizontal Mount, Level II (to 3000 fpm 4 in. wg)
- Extruded, No Flange (EM-40) (186k)
- Extruded, Flange on Discharge (EM-41) (186k)
- Extruded, Flange on Intake (EM-42) (186k)
- Heavy Duty Industrial Backdraft Dampers (to 6400 fpm, 20 in. wg)
- Aluminum, single thickness blade (HB-110) (136k)
- Fabricated, single thickness blade (HB-120) (144k)
- Fabricated, airfoil blade (HB-230) (101k)
- Fabricated fan, Class III airfoil blade (HB-240) (118k)
- Fabricated fan, Class III airfoil blade (HB-330) (210k)
- Heavy Duty Industrial Pressure Relief Dampers (to 6 in. wg relief)
- Fabricated, single thickness blade (HPR-120) (91k)
- Fabricated, airfoil blade (HPR-230) (115k)
- Fabricated, airfoil blade (HPR-330) (212k)
|
