Device characteristics The fan housing is made of aluminum alloy. The engine is fixed to the housing by means of M4 screws. The metal fan impeller is fixed directly on the engine shaft and is secured by the screw against axial movement. The suction flange of the fan is protected by the cover preventing touching moving parts/ turbine by hand. The fan engine, made in the F insulation class, protected by the thermal fuse against abnormal use, is suitable for voltage rotational speed control. Controllers must be adapted to the operation with inductive load. The fan has the CE declaration. RV-18 type fans in various forms are designed for blowing air in C.O. boilers and other technological devices at ambient temperature from -15 degrees of Celsius to +40 degrees of Celsius, in a relative humidity of up to 95%. The fan is not designed for the operation as a standalone device for home use or the like. Basic application – fine coal furnaces up to 50 kW, furnaces with retort feeder up to 75 kW. Parameters Propulsion engine type: inductive Rated voltage: 230 V Rated frequency: 50 Hz Power consumption: 100 W Rated current: 0.8 A Max. performance: 250 m3/h Max. accumulation: 340 Pa Rotations at max. performance: 1700 rpm Rotations at max. accumulation: 2800 rpm Type of work: S1 Location of work: any Degree of protection: IP 20 Basic insulation: Class F Protection against abnormal use: engine thermal fuse Sound power level: 65 dB (A) Weight: 2.4 kg Minimum supply voltage: 100 V