Bubble Tight Isolation Dampers

Designed for safety in critical leakage applications

Isolation dampers are very low leakage and provide tight shutoff within an HVAC or process control systems. A bubble-tight damper is heavy-duty, designed to meet the requirement for zero leakage. Every damper receives factory testing for leakage to ensure a bubble-tight seal at 10 in. wg (2.5kPa) or 30 in. wg (7.5 kPa). Recommended applications for this damper are those with a two-position shut-off including:

Post office sorting rooms
Medical facilities
Food processing
Universities
Test laboratories
Government buildings

HBT-221

Rectangular design provides zero leakage; pressure 10 in. wg, velocity 3900 and temperature range of -40° to 250°F for isolation/decontamination settings.

VIEW HBT-221

HBTR-151

Round shape offers zero leakage; pressure 10 in. wg, velocity 3900 and temperature range -40° to 250°F for isolation/decontamination settings.

VIEW HBTR-151

HBTR-451

Round shape offers zero leakage; pressure 30 in. wg, velocity 6500 and temperature range -40° to 250°F for isolation/decontamination settings.

VIEW HBTR-451

HBTR-551

Round shape offers zero leakage; pressure 40 in. wg, velocity 6500, and temperature range -40° to 250°F for isolation/decontamination settings.

VIEW HBTR-551