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Pottorff > Air Control Dampers > Air Control Dampers > Constant Airflow Regulator > CAR-RB

Model CAR-RB

Constant Airflow Regulator
Register Box

Model CAR-RB constant airflow regulator with register box is designed to save a significant amount of money and energy by precisely controlling airflow to balance HVAC systems without the need for electrical or pneumatic controls and sensors. A self-regulating aero-wing and spring piston design automatically adjust for variable duct pressures caused by building duct design, thermal stack effect, dust build up in air filters, and other varying building conditions. The CAR-RB constant airflow regulator works best to help control the volume of make-up or exhaust air in high rise applications.

CAR-RB Register Box

Standard Construction

Sleeve: 24 gauge (0.7) galvanized steel.

Frame: UL 94 V-0 fire resistant ABS plastic.

Blade: Self-regulating aero-wing.

Spring: Internal spring piston.

Seal: Full circumference rubber gasket.

Adjustment: T-10 Torx star drive.

Pressure Range: 0.2 in. wg. - 1.0 in. wg. (50 Pa - 249 Pa)

Regulator Location: End of sleeve.

Available Regulator Sizes:
3" Ø (76 Ø)
4" Ø (102 Ø)
5" Ø (127 Ø)
6" Ø (152 Ø)
8" Ø (203 Ø)
10" Ø (254 Ø)

Available Sleeve Sizes:
Min. 4" x 4" (102 x 102)
Max. 24" x 24" (610 x 610)


UL R38307/2043: Heat release and smoke optical density

Temperature: -25oF to 145oF (-32oC to 63oC)

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