It is a new product based on the overseas advanced technology and improved. Its feature: GDF series centrifugal fan. It can be directly connected with the air duct, with good performance, stable operation, low noise, reasonable and loose structure, and convenient assembly. In the 1990s, it filled the gap in China and replaced imported products.
Front plate, model layout: the impeller consists of multiple forward arc aluminum alloy blades. The rear disc is composed of mechanized moulds, and has been checked for static and dynamic stability. It is stable and reliable in operation and has outstanding atmosphere power function.
It is formed by spot welding after mechanization and mold processing. The structure is stable, and the casing is made of galvanized steel plate or stainless steel plate. Reasonable and loose. The motor support is galvanized and formed by mechanized mold.
The impeller is fixed on the motor housing, and the motors are all externally rotated motors with single support. The motor support end is fixed on the motor support, and the motor support is fixed on the top plate of the casing. The motor casing changes to directly drive the impeller.
Market, fan use: can be used in hotels. Ventilation in hospitals, cinemas, dance halls, halls, colleges and research institutions, as well as industrial and civil buildings.
Operating premise: the type of gas transported: atmosphere and other unnatural non corrosive gases harmless to human body.
The dust and hard particles contained in the gas are more than 120mg/m3. Impurities in the gas: no viscous substances are allowed in the gas.
Gas temperature control scale: - 20 ℃ - 80 ℃.
It shall be installed according to the orientation of the sample front view, and this series of fans are only used for indoor devices. It is not allowed to bump and invert the device, and it is not allowed to install side by side, otherwise it will affect the operating life of the motor. If it needs to be installed outdoors, the rainproof measures of the motor must be considered.
For the same air volume, the hypothetical selection statement: the duct fan is a forward multi airfoil centrifugal fan. Under partial pressure, its noise is much lower than that of axial flow fan. The air volume, air pressure, noise and other parameters of this series of fans are proposed according to the actual needs of many projects and are widely applicable to the air supply and exhaust systems in public places.
Reverse installation can be prevented, and the top surface of the fan housing is marked with an arrow of the air outlet direction. Ensure the normal use of the air supply and exhaust series. When the ultra-low temperature atmosphere being transported may cause condensation in the casing and pipe core, the insulation layer shall be assumed. The noise of the fan is the intended air volume. When the air pressure is not connected to the air duct, the evenness of the side one meter away from the air inlet will be reduced. If the air inlet and exhaust ducts are equipped, the noise will be reduced. For places with high noise requirements, muffler elbows or mufflers shall be provided on the air inlet and exhaust ducts. The fan is equipped with single-phase (the power wiring diagram of 200V motor is placed in the fan power junction box.
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