Greenheck Fan Barometric Relief Damper Sebr 10 Users Manual

SEBR-10 to the manual 9a89c062-d535-4ff9-b11b-1f0634c86dc0

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BAROMETRIC ADJUSTABLE
RELIEFCOUNTERBALANCE
DAMPER
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)

Ratings

H*

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
steel hat channel

*W & H dimensions furnished approximately 1/4 in.(6mm) under size.

Blades: 20 ga. (1mm) 316 stainless steel,
eccentrically pivoted
Axles: 3/8 in. (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

5"

4 3/8 in.
MAX

SEBR-10
No flange
1 in. MAX

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-11
Flange on
Discharge
1.5 in.

SEBR-12
Flange on
Intake
1.5 in.

Airflow

PERFORMANCE DATA

SEBR-10 SERIES

Performance data results from testing a 12 in. x 1 2 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).

Damper size
12 in. x 12 in.

Damper size
36 in. x 36 in.

2.0

2.0

5.5

1.0
.9
.8
.7

5.2

.6

5.2

.6

.5

.5
5.3

.4

Pressure Loss ( in. wg)

Pressure Loss ( in. wg)

5.5

1.0
.9
.8
.7

.3

.2

.3

.2

.1
.09
.08
.07

.1
.09
.08
.07

.06

.06

.05

.05

.04

.04

.03

5.3

.4

.03
100

200

300

400 500 600

800 1000
700 900

2000

3000

100

Velocity (fpm)

200

300

400 500 600

800 1000
700 900

2000

3000

Velocity (fpm)

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; 3⁄8 in. (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.

GREENHECK
P.O. BOX 410 SCHOFIELD, WISCONSIN 54476-0410
PH. 715-359-6171
www.greenheck.com

SEBR-10 series
Rev. 1 April 2004
Copyright © 2004 Greenheck Fan Corp.



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