Greenheck Barometric Relief Damper SEBR-10 User manual

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)
Ratings
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
steel hat channel
Blades: 20 ga. (1mm) 316 stainless steel,
eccentrically pivoted
Axles: 3
/8in. (9.5mm) square 316 stainless steel
Bearings: 316 stainless steel with acetal races
Linkage: 316 stainless steel,
side mounted (out of airstream)
Blade Seals: Pressure activated vinyl
Counterbalance: Blade mounted with adjustable
316 stainless steel weights
Size Limitations
Minimum Size: 8 in. W x 6 in. H
(203mm x 152mm)
Maximum Panel Size: 48 in. W x 74 in. H
(1220mm x 1880mm)
Options
• EPDM segmented jamb seals
• Selectable start open from .05 to .13 in. wg
(12 Pa - 32 Pa)
SEBR-10 SERIES
Horizontal Mount Vertical Airflow Up
BAROMETRIC RELIEF DAMPER
ADJUSTABLE COUNTERBALANCE
DAMPERS AND LOUVERS
*W & H dimensions furnished approximately 1 /4in.(6mm) under size.
4 3/8 in.
MAX
1 in. MAX
5"
1.5 in.
1.5 in.
SEBR-10
No flange
SEBR-11
Flange on
Discharge
SEBR-12
Flange on
Intake
Airflow
W* H*

Specifications
Barometric backdraft dampers meeting the following specifications shall be furnished and installed where shown on plans
and/or as described in schedules.
Dampers shall consist of: 16 ga. (1.5mm) insert mount 316 stainless steel hat channel frame with 5 in. (127mm) depth; blades
will be 20 ga. (1mm) 316 stainless steel, eccentrically pivoted; 3⁄8in. (9.5mm) square 316 stainless steel axles with 316
stainless steel bearings with acetal races; damper shall be equipped with pressure activated vinyl blade seals; and internal
316 stainless steel blade-to-blade linkage side mounted (out of airstream) with blade mounted 316 stainless steel
counterbalance weights.
Damper manufacturer's printed application and performance data including pressure, velocity and temperature limitations
shall be submitted for approval showing damper suitable for pressures to 2 in. wg (500 Pa), velocities to 2000 fpm (10.2m/s)
and temperatures to 180°F (82ºC). Testing and ratings to be in accordance with AMCA Standard 500D.
Basis of design is Greenheck model SEBR-10 series.
200 300 400 500 600
700
800
900
1000 2000 3000
.04
.05
.06
.07
.08
.09
.1
.2
.3
.4
.5
.6
.7
.8
.9
1.0
5.2
5.3
.03
2.0
5.5
100
Performance data results from testing a 12 in. x 12 in. and 36 in. x 36 in. damper in accordance with AMCA Standard 500D
using Figure 5.3 (fully ducted), 5.2 (ducted exhausting into an open area), and 5.5 (plenum mounted) . All data has been
corrected to represent standard air density at 0.075 lb/ft3 (1.201 kg/m3).
GREENHECK
P.O. BOX 410 SCHOFIELD, WISCONSIN 54476-0410
PH. 715-359-6171
www.greenheck.com
SEBR-10 SERIESPERFORMANCE DATA
SEBR-10 series
Rev. 1 April 2004
Copyright © 2004 Greenheck Fan Corp.
Damper size
12 in. x 12 in.
200 300 400 500 600
700
800
900
1000 2000 3000
.04
.05
.06
.07
.08
.09
.1
.2
.3
.4
.5
.6
.7
.8
.9
1.0
5.2
5.3
.03
2.0
5.5
100
Damper size
36 in. x 36 in.
Velocity (fpm)
Pressure Loss ( in. wg)
Velocity (fpm)
Pressure Loss ( in. wg)