Commercial HVAC & VAV Terminal Units
Single-Duct Variable Volume
Our single-duct variable volume terminal units are used for commercial heating and cooling systems such as HVAC and VAV units for controlling air flow in independent zones in your commercial and industrial buildings. Control can be either electric or pneumatic. Airflow control can be enhanced with the installation of an optional Pitot reader.
Various models available

Single-duct Variable Volume Terminal Unit Model BVV
Our BVV terminal units are made of 22-gauge galvanized steel with ½” thermal and acoustic insulation.
Compatible with electric or pneumatic controllers.
Height: 8″ to 24″ – Width: 12″ to 26″ – Depth: 15½”
Intake diameter: 4″ to 26″
Calibration chart included.
Options :
- Pitot reader
- Attenuator
- Built-in silencer
- Neoprene or rubber pads
Standards: insulation: NFPA 90A and 90B/ASTM C-1071/SMACNA/CGSB 51 GP 11M/AN-ULCS102-M88

Single-duct Variable Volume Terminal Unit - Model BVV-L
The BVV-L is the elongated (attenuator type) model of the BVV unit.
Made of 22-gauge galvanized steel with ½” thermal and acoustic insulation.
Compatible with electric or pneumatic controllers.
Height: 8″ to 18″ – Width: 12″ to 20″ – Depth: 38½”
Intake diameter: 4″ to 26″
Calibration chart included.
Opening for electric or water heating coil.
Calibration charts included.
Options :
- Pitot reader
- Attenuator
- Built-in silencer
- Access door to facilitate cleaning
- Opening for electric or water heating coil
- Heating coil installation
- Neoprene or rubber pads
Standards: insulation: NFPA 90A and 90B/ASTM C-1071/SMACNA/CGSB 51 GP 11M/AN-ULCS102-M88

Single-duct Variable Volume Terminal Units - Model VRZ
The VRZ model can zone heating and air conditioning systems.
Manufactured in 22-gauge galvanized steel
Diameter: 4″ to 30″
Depth: 15″ to 30″
Bracket for electric or pneumatic actuator included.
Calibration chart included.
Options :
- Pitot reader
- Attenuator
- Built-in silencer
- Neoprene or rubber pads