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Fusible Link Fire Damper With Sleeve Model FLD-S-UD F
Specifications
| Frame Type | Hat Channel 123mm wide |
|---|---|
| Blade Type | Triple V Type Parallel Configuration |
| Sleeves | Factory Fitte inimum 508mm long 20Ga 180 GSM Galvanized Steel sheet |
| Frame MOC | Galvanized Steel 16Ga 180 GSM |
| Blade MOC | Galvanized Steel 16Ga 180 GSM |
| Axle Bush | Bronze Bush pressed into Frame |
| Blade Axle (Shaft) MOC | Zinc Plated Steel 9.5mm Square Bar |
| Linkage | Tie Bar In Frame |
| Linkage MOC | 3mm Galvanized Steel Tie Bar |
| Return Spring | Stainless Steel |
| Temperature Release Device | UL Stamped Fusible Link 74 Deg C (Std) |
Key Features
- fire rating under Dynamic conditions.
- It features a failsafe design which enables the damper to automatically assume the closed position when the duct temperature reaches the design temperature of the fusible link.
- The Frame of the Damper is constructed with reinforced corners.
Product Description
Model FLD-S-UD is a UL 555 classified Fusible Link Multi Blade fire damper with 3V style blades. It is designed for the closure of the HVAC duct opening in Fire situations. It is UL555 classified for 90 min. Fire rating under dynamic conditions. It is designed for system velocity up to 2000fpm and pressures up to 4w.g. Model FLD-S-UDcan be installed vertically, with blades running horizontally with airflow in either direction.
- Low profile Slim line frames in head and sill are used in sizes less than 425mm high.
- Blades are reinforced with 3 longitudinal structurally designed Vees
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Frequently Asked Questions
This model has a UL 555 classified fire rating of 90 minutes under dynamic conditions.
It is designed for system velocities up to 2000 feet per minute (fpm).
The frame and blades are constructed from galvanized steel, specifically 16 gauge with a weight of 180 GSM.
The fusible link serves as a temperature release device that automatically closes the damper when the duct temperature reaches 74 degrees Celsius.
It features a triple V type parallel configuration for its blades.
The sleeves are factory fitted and have a minimum length of 508 mm, made from 20 gauge galvanized steel sheet.
Yes, it can be installed vertically, with blades running horizontally and airflow in either direction.
The frame type is a hat channel that is 123 mm wide.
The linkage includes a tie bar made from 3 mm galvanized steel, pressed into the frame.
It uses a stainless steel return spring.
The blade axle (shaft) is made from a zinc plated steel square bar measuring 9.5 mm.
This model can handle pressures up to 4 inches water gauge (w.g.).
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