The KYODO FD-1/FD-2 Marine Fire Damper manual details specifications, construction, and operation modes (manual, electrical, thermal fuse).
The Marine Type Fire Damper is built with a high‑quality mild‑steel frame and a steel blade (3 mm) on a 12.7 mm shaft. It meets a Class A‑60 deck fire rating and complies with IMO FTP Code, and can be mounted vertically or horizontally. Dimensions range from a minimum 150 mm × 150 mm rectangular module up to 1000 mm × 1000 mm, with a standard depth of 200 mm.
The damper can be closed by three methods: manual operation using a lever and reset handle, electrical operation via a DC‑24 V actuator (ADS‑B101 or ADM‑B102), and activation by a thermal fuse that melts at 72 °C. The actuator provides rapid blade movement and sends confirmation signals to the control system.
| Fire Rating | Class A-60 deck, IMO FTP Code |
|---|---|
| Fusible Link Temperature | 72 °C |
| Frame Material | High quality mild steel |
| Minimum Rectangular Size | 150 mm × 150 mm |
| Maximum Rectangular Size | 1000 mm × 1000 mm |
| Standard Depth | 200 mm |
| Casing Thickness | 5.0 mm steel plate |
| Blade Thickness | 3.0 mm steel plate |
| Blade Shaft Diameter | Φ12.7 mm |
| Actuator Rated Voltage | DC 24 V |
| Operating Voltage Range | DC 18 V – 30 V |
The actuator is rated at DC 24 V and operates within a voltage range of DC 18 V to 30 V.
When the temperature in the duct exceeds 72 °C, the fusible link melts, unlocking the fuse arm and activating the spring to close the damper blades.
It has a Class A‑60 deck fire rating and complies with the IMO FTP Code.