DESIGN 51 B SISW

Centrifugal Fan

LIMIT-LOAD

BASIC DESCRIPTION

Centrifugal fan rotor type B, backward inclined blades, with high efficiency. 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 the noise level, "SOUND PERFORMANCE". Discharge dimensions, standardization of classes, arrangements and sizes according to standards ASHRAE / AMCA.

APLICATIONS:

Ventilation, exhaust, industrial processes, marine, power plants and air handling systems and pollution control 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 fittings.

CONSTRUCTION (ROBUST INDUSTRIAL)

● Structure - Profiles in welded carbon steel plate, providing security and robustness to the equipment.

● Housing - High thickness carbon steel plates, welded, with aerodynamic "spiral" shape.

● Inlet Cone - Carbon steel conformed to hyperbolic flow profile.

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

-Center - Carbon steel precision machined, fixed to the shaft with screws and key.

-Backplate - Carbon steel disc, high thickness, structured, centerly fixed with locked screws.

-Rotor Cone- Carbon steel conformed to hyperbolic flow profile.

-Blades - Blades - Carbon steel, backward inclined, welded to the back plate and the cone of the rotor.

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● Shaft (in the applicable arrangements) - Carbon steel SAE 1045 precision machined, minimum safety factor of 1.2 on 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 by abrasive blasting grade SA-2, further epoxy based paint with a minimum thickness of 25µ and epoxy finishing paint with a minimum thickness of 25µ . Other materials of construction and other surface treatments can be provided upon request.