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4-68 series large flow centrifugal ventilation fan
The 4-68 series centrifugal fan is suitable for indoor ventilation in general factories and large buildings.
It can be used to input gas as well as to output gas.
The gas delivered by the 4-14 series fan should be no more than 80 °C air and other gases that are not self-igniting and are not harmful to the human body and are not corrosive to steel materials. No viscous substances are allowed in the gas, and the dust and hard particles contained in the gas are not more than 150 mg/m3.

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Description
The 4-68 series centrifugal fan is suitable for indoor ventilation in general factories and large buildings.
It can be used to input gas as well as to output gas.
The gas delivered by the 4-14 series fan should be no more than 80 °C air and other gases that are not self-igniting and are not harmful to the human body and are not corrosive to steel materials. No viscous substances are allowed in the gas, and the dust and hard particles contained in the gas are not more than 150 mg/m3.
It has large flow and low noise, more use in building ventilation, ventilation and drying of materials, air purification and industrial waste gas treatment, industrial dust collectors, air purification and discharge in hazardous working environments(Paper production line, electrolytic aluminum production line, textile factory...). Blasting of boilers and brick kilns, transport of various gases, transport of granules/powders/debris/fiber materials, etc. 
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.
Specification

Series no.

4-68 series

Feature selection

Normal

anti-corrosion

wear-resisting

High temperature

anti-explosion

Remarks

Performance

Impeller diameter

280-1600mm

 

Rotation speed

≤3000rpm

 

Pressure range

720-6531Pa

 

Flow range

1966-194495㎥/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.

Features

01

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

02

The motor selects the high-efficiency energy-saving motor of China's leading motor manufacturing enterprise (can also install the brand motor required by users), the quality is reliable, and the energy consumption is lower.

03

The V-belt drive makes your fan to operate at the optimum speed. Installation is simple and does not require the support of professional technicians.

04

The airflow channel and the impeller are optimized several times, which is more efficient and energy-saving than ordinary large-flow fans.

05

Made of high quality carbon steel, Stainless steel or other metal materials can also be used according to user requirements.

06

The impeller is annealed to completely eliminate structural stresses generated during welding, ensuring that the impeller does not undergo creep and cracking.

07

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

08

Installation is simple and does not require the support of professional technicians.
Inquiry
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