BAROMETRIC RELIEF DAMPER
ADJUSTABLE COUNTERBALANCE
DAMPERS AND LOUVERS
SEBR-10 SERIES
Horizontal Mount Vertical Airflow Up
Application and Design
The SEBR-10 series is a severe environment 316 stainless steel eccentrically pivoted backdraft damper for low velocity
systems. SEBR-10 series is a horizontally mounted damper and designed to allow vertical airflow up and prevent reverse
airflow. On-blade counterweights are provided to fine tune start-to-open and full open blade operation. Ball bearings minimize
friction.
Recommended Applications:
• Gravity hood intake and exhaust
• Stairwell pressurization
• Room pressurization
• Ductwork outlets
Poor Applications:
• Propeller fan outlets (high velocity)
• Centrifugal fan outlets (high velocity)
• Building pressurization (sensitive to wind)
• Pressure relief exceeding 0.13 in. wg (32 Pa)
H*
Ratings
W*
Back Pressure: 2.0 in. wg (500 Pa)
Start-to-Open Pressure: 0.05 in. wg (12 Pa)
Velocity: 2000 fpm (10.2m/s)
Temperature: 180°F (82ºC)
Standard Construction
Frame: Insert mount 16 ga. (1.5mm) 316 stainless
*W & H dimensions furnished approximately 1/4 in.(6mm) under size.
steel hat channel
Blades: 20 ga. (1mm) 316 stainless steel,
eccentrically pivoted
3
Axles: /8 in. (9.5mm) square 316 stainless steel
Bearings: 316 stainless steel with acetal races
5"
Linkage: 316 stainless steel,
4 3/8 in.
MAX
side mounted (out of airstream)
SEBR-10
No flange
Blade Seals: Pressure activated vinyl
Counterbalance: Blade mounted with adjustable
316 stainless steel weights
1 in. MAX
Size Limitations
Minimum Size: 8 in. W x 6 in. H
SEBR-11
Flange on
Discharge
(203mm x 152mm)
Maximum Panel Size: 48 in. W x 74 in. H
(1220mm x 1880mm)
1.5 in.
Options
SEBR-12
Flange on
Intake
• EPDM segmented jamb seals
• Selectable start open from .05 to .13 in. wg
(12 Pa - 32 Pa)
1.5 in.
Airflow
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