Greenheck HBTR-151 User Manual

Application

The HBTR-151 is an isolation damper designed for isolation
and decontamination applications. The damper has bubble
tight leakage performance per AMCA 500-D up to 10 in. wg
(2.5 kPa). The damper frame is flanged for easy mounting and
the blade seal is mechanically fastened to the blade.

Ratings

Leakage: Bubble tight per AMCA 500-D

Pressure: 10 in. wg (2.5 kPa) - differential pressure
Velocity: 3900 fpm (19.8 m/s)
Temperature: -40°F to 250°F (-40°C to 121°C)

Construction Standard Optional

Frame Material Painted Steel 304SS or 316SS

Frame Type Flanged Channel

Blade Material Painted Steel 304SS or 316SS

Blade Type Round, center pivoted, double skin

Blade Thickness 12 ga. (2.7mm)

Blade Seals Silicone rubber, mechanically fastened

Blade Stop full-open and full-close pin stops

Axle Material Painted Steel 303SS or 316SS

Axle Seal Double gland

Bearings Relubricable ball, outboard mounting

Epoxy,

Paint Finish Hi Pro Polyester

Industrial Epoxy,

Mill finish (304SS

or 316SS)

Model HBTR-151

Bubble Tight Isolation Damper

J

D*

F

* Actual Inside Dimension

Available Sizes:

Minimum Size: 5.906 in. (150mm) diameter
Maximum Size: 36 in. (914mm) diameter

Options:

• Mounting holes in flanges

• Actuators

• Limit Switches

• Special construction

Diameter (D)
Inches (mm)

Above Through

5.906
(150)

12

(305)

24

(610)

28

(711)

12

(305)

24

(610)

28

(711)

36

(914)

Installation instructions available at www.greenheck.com.

Frame

Depth J

Inches

(mm)

6

(152)

8

(203)

8

(203)

8

(203)

Frame &

Flange

gauge

(mm)

12

(2.7)

12

(2.7)

10

(3.5)

10

(3.5)

Flange

Width F

Inches

(mm)

1.5

(38)

1.5

(38)

2

(51)

2

(51)

Axle

Diameter

Inches

(mm)

0.5

(13)

0.75
(19)

0.75
(19)

1

(25)

Blade

Thickness

gauge

(mm)

12

(2.7)

12

(2.7)

12

(2.7)

12

(2.7)

Performance Data HBTR-151

AMCA Test Figure 5.3

Figure 5.3 Illustrates a fully ducted damper. This configuration has low pressure drop because entrance and exit losses are

minimized by straight duct runs upstream and downstream of the damper.

AMCA Test Figure 5.3

4D 6D

Pressure Drop Data

This pressure drop data was conducted in accordance with
AMCA 500-D using Test Figure 5.3. All data has been corrected
to represent standard air at a density of 0.075 lb/ft3 (1.2kg/m3).

Actual pressure drop found in any HVAC system is a
combination of many factors. This pressure drop information
along with an analysis of other system influences should be
used to estimate actual pressure losses for a damper installed in
a given HVAC system.

Leakage

Every HBTR-151 is leakage tested at 10 in. wg (2.5 kPa) in
accordance with AMCA 500-D before it leaves the factory.
Greenheck does not ship a HBTR-151 unless it meets the
requirements of the standard.

0.40

0.30

0.20

0.10

0.09

0.08

0.07

0.06

0.05

0.04

0.03

0.02

0.010

0.009

0.008

0.007

0.006

Pressure Loss ( In. wg)

0.005

0.004

0.003

0.002

Pressure Drop

12 in. (305mm) dia. Damper

2 3 4 5 6 7 8 9 10

1

x 100

Ve locity (fpm)

2 3 4 5 6

x 1000

Bearing Detail

The ball bearings are mounted outboard for easy access.
The bearing comes with a grease fitting, allowing for easy
lubrication (axle seals included but not shown in bearing detail).

Axle Seal Detail

The double gland axle seal is mounted externally for easy
access and provides bubble tight performance.