Linked blade movement
Multiple blades operate across the opening as one controlled assembly.
PRODUCT / TECHNICAL DATA Cleanroom Ductwork & AccessoriesSpecifications / Configurations / Procurement
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Cleanroom Ductwork & Accessories
Multi-Blade Smoke Exhaust Damper
Product specifications
Common specification options
| Brand | ST |
|---|---|
| Blade arrangement | Multiple linked blades |
| Normal position | Closed |
| Opening | Fire-control signal or manual release |
| Dimensions | Custom |
| Casing options | Galvanized steel / coated steel |
| Connection options | Rectangular duct flange |
| Position-feedback options | Open / closed limit-switch contacts |
| Maintenance access | Accessible release and actuator assembly |
| Size options | Custom duct opening and casing depth |
Customization availableOpening dimensions, actuator arrangement, release position and control interfaces can be matched to the smoke-control design.
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Multi-Blade Smoke Exhaust Damper opens a normally closed extraction branch when the fire-control sequence calls for it. Linked blades expose the duct opening so the selected zone can connect to the operating smoke-exhaust route.
FEATURES AND BENEFITS
How it helps
System and manual release
The listed release arrangements allow the opening action to follow the system command or local test operation.
Position feedback
Optional contacts report the blade state to the associated control circuit.
APPLICATIONS
Where it is used
Smoke-control branches
Use at branch positions where the designed sequence selects an exhaust path.
SELECTION GUIDANCE
Choosing the configuration
Operating sequence
Coordinate opening, fan operation and feedback with the fire-control design, and keep the release assembly accessible for functional checks.
PROCUREMENT / INQUIRY
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