RTC Low Noise Centrifugal Chimney Roof Exhaust Fan

1. Diameter from 540-1520mm
2. total 8 models
3. quality warranty for one year
 
Product Features:
1) Full aluminum casing, rotproof, low weight, pretty appearance.
2) Streamline funnel cap and casing, small resistance, patent technology.
3) High & low pressure aluminum alloy impeller, high efficient and energy saving, steady and mute.
4) Use protection class IP54 motor or insulation classF motor, heat-resistant (300°C, 45min), also can be matched explosion-proof motor, two-speed motor, inverter motor.
5) Can choose the gravitational check valve or electric check valve, prevent from airflow backward, easy for installation.
Optional accessories:
1) Smoke sensor: Using gas resistance type sensors, suitable for underground garages, tunnels automobile exhaust emissions exceeding; also can be used for detecting the gas leak in factory; smoke sensor through detecting the concentration of smoke to control the fan's closure status.
2) Temperature sensor: By controlling the temperature of the upper and lower critical point to realize the fan on and off, mainly used in heating company, food plants, chemical plants, power plants, steel mills, machinery plants.
3) Damper: Using gravity self-closing check valve or electric driven hoist check valve, damper frame made of galvanized sheet, blinds made of aluminum alloy, multi-chip linkage check valve prevents outdoor gas intrusion, and anti-condensation. If the fan both for the exhaust and ventilation, optional smoke damper. The fan and the valve all have been proved by national fireproof.