4-09 series large flow centrifugal ventilation fan

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Description

Features

Specification

The 4-09 series large-flow centrifugal fan is the earliest used fan in China, and it is also the most commonly used fan.
Suitable for conveying clean air or light materials at normal temperature, most commonly used in industrial furnaces for air supply, light particle/powder/crush/fiber transportation, air drying/cooling of materials, ventilation and smoke exhaust, and other areas.
No viscous substances are allowed inside the gas, and the dust and hard particles contained in the gas are larger than 150 mg/m3, and the gas temperature does not exceed 80°C.

application

Centrifugal fan is widely used in the cement industry, building materials industry, environmental protection industry, metallurgical industry, power industry projects such as large-scale dust collector, industrial boilers, ventilation systems, cooling.

Structure

Drive, we usually divide the fan into:

In the process of choosing the fan, please select the appropriate fan according to the working conditions.

When the pressure requirement is met, a large gas flow can be output, and the noise is very low.

The fan speed can be flexibly set by matching different diameters of belt pulley to make the fan run at the highest efficiency point and reduce energy waste.

Motor sliding guides are provided for easy tensioning of the belt to reduce energy loss due to belt slack.

When the airflow resistance is increased, the motor load will be automatically reduced and the motor will not be burnt.

In the case of a monolithic bracket, the installation is very simple and requires little support from a professional technician.

After the production is completed, all products are tested for running and vibration values for reliable operation.

Series no.	4-09 series	Feature selection
		Normal	anti-corrosion		wear-resisting		High temperature		anti-explosion		Remarks
Performance	Impeller diameter	250-2000mm
	Rotation speed	≤4000rpm
	Pressure range	778-6761Pa
	Flow range	1199-435813㎥/h
Structure	Blade type	Backward, Straight, Aerofoil type
	Impeller support	SWSI(Single Width, Single Inlet), DWDI(Double Width, Double Inlet), Overhung type
	Lubrication method	Oil bath lubrication, grease lubrication, lubrication oil station									Can be specified
	Cooling method	Air cooling, Water cooling, Oil cooling									Can be specified
	Driven mode	Direct driven, Coupling driven, Belt driven									Can be specified
Gas composition	Gas temperature	Normal		Customer request		Customer request		≥250℃		Customer request
	gas characteristic	Clean gas		Corrosive gas		Particulate dust		High temperature gas		Flammable gas, explosive gas
System configuration	Motor brand	Chinese famous brand, ABB, Siemens, WEG etc									Can be specified
	Impeller	High quality carbon steel		FRP, Stainless steel, Rubber Lining		Wear-resistant layer or wear-resistant liner, ceramic patch		High temperature high quality alloy steel		FRP, Aluminum alloy	Can be specified
	Air inlet cone	High quality carbon steel		FRP, Stainless steel, Rubber Lining		High quality carbon steel		High quality carbon steel		High quality carbon steel	Can be specified
	Casing	High quality carbon steel		FRP, Stainless steel, Rubber Lining		High quality carbon steel		High quality carbon steel		High quality carbon steel	Can be specified
	Air damper	High quality carbon steel		FRP, Stainless steel, Rubber Lining		High quality carbon steel		High quality carbon steel		High quality carbon steel	Can be specified
	Main shaft	High strength carbon steel, Alloy structural steel									Can be specified
	Bearing	ZWZ, SKF, FAG, NSK									Can be specified
	Bearing housing	Cast iron
	Foundation bolts	GB799-1988
Option parts	System base frame, Protective screening, Silencer, Inlet & Outlet flexible connections, Inlet & Outlet counter flange, Air damper, Electric actuator, Shock absorber, Diaphragm coupling, Fluid coupling, Motor rain cover, Temperature sensor, Vibration sensor, Soft starter, Inverter, Special Electrical Motor, System monitoring Instrument.

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