DESIGN 51 A SISW

Centrifugal Fan

AIRFOIL

BASIC DESCRIPTION

Centrifugal fan with type A, airfoil, high efficiency rotor. Model tested and certified by Chicago Blower Corporation in accordance with the standards AMCA Standard 210 and AMCA Standard 300, with the stamp of compliance "AMCA" for aerodynamic performance, "AIR PERFORMANCE", and for noise level, "SOUND PERFORMANCE". Discharge dimensions, standardization of classes, arrangements and sizes according to standards ASHRAE / AMCA.

APLICATIONS:

Ventilation, exhaust, industrial processes, naval, power plants and air conditioning systems in general.

OPERATING CHARACTERISTICS:

Operating Range: Flow rate up to 500,000 m³/h Static pressure up to 500 mmca.
Mechanical efficiency: Above 80% in the range of maximum yield.
Power consumption profile: "LIMIT-LOAD"
Operating Fluid: Air or gases without excessive abrasive particles.
Temperature: Up to 60°C – Standard Construction. Above, up to 400 °C – Requires special accessories.

CONSTRUCTION (ROBUST INDUSTRIAL)

● Structure - Welded shapes of carbon steel plates, providing security and robustness to the equipment.

● Housing - Heavy gauge carbon steel plates, welded, with aerodynamic spiral shape.

● Inlet Cone - Carbon steel formed into hyperbolic flow profile.

● Rotor - Designed with a minimum safety factor of 1.2 at the speed of the class, consisting of:

-Center - Precision machined carbon steel, attached to the shaft with screws and key.

-Backplate - Structured heavy gauge carbon steel disk attached to the center with nuts and bolts.

-Blades - Carbon steel with aerodynamic profile (airfoil), structured with ribs according to the constructive class and size, welded to the backplate and the cone of the rotor.

-Rotor Cone- Carbon steel formed into hyperbolic flow profile.

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● Shaft (in the applicable arrangements) - Carbon steel SAE 1045 precision machined, minimum safety factor of 1.2 at the maximum speed of the constructive class.

● Bearings (in the applicable arrangements) - Calculated for a minimum life L10 of 40,000 hours.

● Transmission (in the applicable arrangements) - Pulleys and "V" belts, calculated for a minimum of 1.5 times the power of the drive.

● Welding - Electric in an inert atmosphere with qualified procedures and operators.

● Balancing - All rotating assembly is subjected to rigorous static and dynamic balancing, according to ISO 1940 and ANSI S2.19, grade G = 6.3.

SURFACE TREATMENT

According to the procedure of the standard paint of SOMAX the carbon steel parts are subjected to surface treatment through grade SA-2 abrasive blasting, further epoxy based paint with a minimum thickness of 25µ and epoxy finish paint with a minimum thickness of 25µ. Other materials of construction and other surface treatments can be provided upon request.