4-72,4-79 series Industrial Centrifugal Ventilator fan blowers

Centrifugal Fan, Fan, Ventilator, Blower, Industrial Fan, Air Mover, Air Moving, Air Condition, Air ConditioningFeatures: 
1) Low noise, hi-efficiency, light and reliable operation
2) Application: general ventilation of high buildings and factories

Specification:
1) Fan diameter: 280 - 2,800mm
2) Air volume: 2,200 - 300,000m³/h
3) Air pressure: 300 - 2,500Pa

Optimized design
-- The fan adopts advanced technology. Design of backward curved centrifugal wheel is optimized by means of CFD hydro-field simulating. The design is more accordant with the aerodynamic characteristics, high efficiency, and stable airflow.

Advanced process
-- Steel laser cutting, precise positioning jig and all-welded technique are adopted for the blade to ensure smoothness of the margin of the blade. The welding angle is accurate, the whole blade is with strong strength, and the stress is evenly distributed during long-time high-speed operation. The operation is stable and reliable.

High balancing level
-- Each wheel is subjected to dynamic balance test. We insist to the balancing level of G4.0 (Typical products are balanced to G6.3 only). Long-term quiet and stable running of the fan is ensured fundamentally.

High-efficiency range
-- The wheel has a stable and smooth aerodynamic performance curve and owns a wide range of high efficiency working area which can efficiently avoid fan performance decrease caused by the deviation of the working point.

Non-overload
-- The series wheel exist a peak value of shaft power, when the motor is selected according to the power combined with the margin factor of motor power, the fan shaft power will not exceed the motor rated power no matter on which operation point of the stable working range the is running, then the clients can use it at ease.

High reliability
-- To be adopted FEA-aided design for enhancing the reliability of structure.

-- Scroll with high strength and no leakage characteristics are all-steel continuous welded to improve operation safely.

-- New shaft and coupling technology to ensure precise assembly and high reliability.

-- Fan shaft is subjected to finish turning & hardening and tempering. Maximum load surpasses 35% of limit speed to ensure the long-term continuous operation of the security.
-- Bearing seal can be lubricated. Service life more than L10:80000 hours to ensure the reliability of long-term continuous operation.

-- To be configured shields and adopted bright warning color of the drive unit to ensure the personal safety of customer.

-- To be vibration tested before the fan leave the factory to achieve the requirements of long-term stable and reliable operation .
 

High efficiency

-- Venturi inlet matched front disc precisely to avoid turbulent flow and air leakage, so that the air flow more smoothly to improve aerodynamic performance.
-- Optimized design repeatedly of CFD flow field simulation to ensure aerodynamic performance complied with the flow field characteristics.

-- Excellent aerodynamic performance, the maximum efficiency is up to 81%.
 

Humanization

-- Flexible allocationof multi-drive type .

-- Standard accessories for normal use.

-- Accessories completely to meet all kinds of application requirements.

Factory Test

All of equipment is individually factory tested for safety and performance in accordance with international Standards. Each unit is shipped with a documentation outlining the tests undertaken and the units individual results for each unit.

Warranty:

Our equipment is warranty for 1 year excluding consumable parts and accessories.

All equipment is shipped with a comprehensive use’s manual complete with a report documenting all test procedures.

Additional IO/OQ/GMP document is available upon request.

Contact our sales representative for specific warranty details or document request.

Punctual delivery time:

• Production / inspection report provide before shipment

• Shipping notice or insurance for you when your goods is shipped.

After sales service:

• We respect your feed back after receive the goods.

• We provide one year warranty after goods arrive.

• We promise all spare parts available in lifetime use.

• We care of your complain within 48hours.

Payment Term:

T/T in advance, 30% before place the order, 70% when you see copy BL

Or 30% T/T in advance before place the order, 70% LC at sight.