HMI HAC – BPD Series – Back Pressure Damper
Model HAC-BPD is a Barometric Pressure or By-Pass Regulating Damper allowing static pressure through a single blade, round or rectangular relief duct. Resistance is controlled by the offsetting arm and adjustable weight. This is a simple, economical way of bypassing excess static pressure in multi-zone applications.
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Features Include:
- Simple installation, installs inline as part of horizontal duct
- Galvanized Steel construction
- 26 gauge Galvanized Steel from 4″ to 5″ Ø
- 24 gauge Galvanized Steel from 6″ to 9″ Ø
- 24 gauge Galvanized re-enforced Steel from 10″ to 14″ Ø
- 22 gauge Galvanized re-enforced Steel from 16″ to 22″ Ø
- Other sizes and weight of steel upon request
- Adjustable counterweight
- Neoprene Foam for positive seal
- Suitable for Low Volume Fresh Air Inlet and Low Temperature Exhaust Air
Options Include:
- Round or Rectangular design
- The arm can be inserted into either side of the Damper for added versatility
Model Number Identification:
HAC – **00-BPD
Where ** is the size of the Damper
For Example:
| HAC – 8″ Back Pressure Damper | |
| HAC – 0800 – BPD |