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الرئيسية / المنتجات / Air Ducts & Air Distribution / Combination Fire and Smoke Damper 305 x 305 mm Class I
STJH-COMBINATION-FIRE-SMOKE-DAMPER-305X305-CLASS1

Combination Fire and Smoke Damper 305 x 305 mm Class I

Combined thermal and smoke closure in a compact square duct opening.
  • A single assembly addresses both smoke leakage control and thermal closure.
  • External actuation keeps the drive accessible outside the air passage.
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مقدمة المنتج

The small multi-blade assembly combines sealed blade edges with an external drive mechanism. Unlike a stored curtain, the pivoting blades remain within the frame and close together across the passage.

الخصائص الرئيسية

  • A single assembly addresses both smoke leakage control and thermal closure.
  • External actuation keeps the drive accessible outside the air passage.

المعلمات الفنية

Nominal Opening305 x 305 mm
Blade ArrangementLinked multi-blade
Frame MaterialGalvanized steel
Blade ProfileFormed 3V steel
Leakage ConfigurationClass I
Fire Resistance Configuration1.5 hours
Maximum Velocity2000 fpm
Maximum Pressure4 in. w.g.
Elevated Temperature Configuration350 °F (177 °C)
التخصيصAvailable for the intended partition, duct size and control arrangement.

Applications

  • Small combined fire-and-smoke barriers
  • Laboratory branch penetrations

Solutions for Your Application

Separate fire and smoke components consume too much duct length.

The linked-blade configuration combines the two closure functions in one location.

The actuator may be inaccessible after installation.

An external drive arrangement permits its service side to face a planned access opening.

الخيارات المتاحة

  • Actuator supply selection
  • Blade position indication
  • Sleeve length

Planning a Combination Fire and Smoke Damper 305 x 305 mm Class I specification?

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