Ultrafiltration Membranes
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Smoke Damper Model SD-A-U
Specifications
| Blade Type | Triple V Type Parallel Configuration |
|---|---|
| Sleeve | Factory Fitte inimum 432mm long 20Ga 180 GSM Galvanized Steel sheet |
| Frame Type | Hat Channel 123mm wide |
| Frame MOC | Galvanized Steel 16Ga 180 GSM |
| Blade MOC | Galvanized Steel 16Ga 180 GSM |
| Top & Bottom Blade stopper | 1mm thick 180 GSM Galvanized Steel |
| 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 |
| Jamb Seals | Stainless Steel Flexible Metal Compression Type |
| Resettable Thermal Release Device (RTR) | Resettable Thermal Device operates at 74 C. |
| Damper Open/Close Switch (OCS) | Damper Open/Close Indicator is mechanically linked to the blade to provide fool proof Open/Close readings. |
| Actuator | UL Classified Actuator (24V Standard) / 230V Optional |
| Single Section | 1220mm (H) x 914mm(W) (Maximum) 152mm H x 203mm W (Minimum) |
Key Features
- Smoke damper frame is of 180GSM galvanized steel of 16Ga thickness formed into a structural hat channel in 4-piece construction with integral overlapping gusset reinforcements (screws are not acceptable) in each corner to ensure perfect square shape. Top and Bottom frame members will be of low profile design to maximize the free area on small dampers less then 425mm height and hence minimize pressure drop.
Product Details
Fire dampers are provided with an hourly fire rating. Smoke damper's primary function is to control the movement of smoke in dynamic air distribution systems, and they reduce the possibility of smoke transfer within ductwork or through wall openingsModel SD-A-U is a UL555S classified multi blade Smoke Damperwith 3V style Blades. It is designed for closure/opening of theHVAC duct in Smoke situations. It is Class III Leakage Ratedunder UL555S at Elevated Temp of 350 F and is designed forvelocities up to 2000 fpm at 4w.g. pressureModel SD-A-U can be installed vertically, with blades runninghorizontally with air flow in either direction.
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