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| Damper Size | : | 6 in |
| Dimensions | : | 21 in L x 21 in W x 1/8 in THK |
| Finish | : | Galvanized |
| Gauge | : | 22 ga |
| Material | : | Steel |
| Mounting Type | : | Ceiling |
| Series | : | MRCD |
| Shape | : | Round |
METAL-FAB® ceiling radiation dampers are installed in the throat of a ceiling diffuser or return grille. They are required where a suspended ceiling is part of a fire rating for the floor or roof above the suspended ceiling. The trigger mechanism to activate this device is a heat sensitive, fusible link. METAL-FAB® ceiling radiation dampers are classified to UL 555C and carry a 3 to 4 hr rating.
METAL-FAB® Radiation Butterfly Damper, Series: MRCD, 6 in Damper, Round, 22 ga, Ceiling Mount, Steel, Galvanized, 21 in L x 21 in W x 1/8 in THK
- Spring or adjustable volume control
- Fusible link temperature set point
- Round to square transition
- Non-asbestos, ceramic blanket on sizes 80 sq-in and up thermal blanket
- UL 555C listed for 3 to 4 hr
- Corrosion resistant steel spring