Prefco - Johnson Tech Air Control Inc.
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- PREFCO - Model 5150-1 - Smoke Damper
PREFCO - Model 5150-1 -Smoke Damper
The 5150-1 is a UL555S approved Class I Smoke damper that can utilize a variety of internally or externally mounted actuators. The damper may be installed vertically or horizontally in ducts penetrating barriers requiring leakage protection, within 24" of the barrier being protected. This damper has been evaluated with bi-directional airflow, and is rated to 2000 FPM and 4" static pressure in compliance UL555S 4th edition.
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- Frame : 4" Wrap around full channel frame - 16 GA Galvanized Steel (Stanless 304 Steel optional)
- Blades : 22 GA Galvanized Steel (Stanless 304 Steel optional), Modified Triple-V Design
- Bearings : Integral Curl in Frame Design
- Linkage : 14 GA Galvanized, on Blade Type (in airstream)
- Seals : Compression type silicone seals
- Sealant : UL Certified silicone caulk (sleeved units only)
- Dual Blade Position Indicator Switches (Switch#1)
- Factory Supplied Sleeves -18 or 14 Gauge, 18" or 24" deep (units with external mount actuators provided with 18 gauge side plate if no sleeve specified)
- Factory supplied `EZ Mount` mounting angles
- Single or Dual Blade stiffeners - for strength & stability of wider units in high pressure systems