SERIE 1900IAF SISW

Centrifugal Fan

AIRFOIL – HEAVY-DUTY

BASIC DESCRIPTION

Centrifugal fan with rotor type A, Airfoil, HEAVY-DUTY, high efficiency. Model tested and certified by Chicago Blower Corporation in accordance with the standards AMCA Standard 210 and AMCA Standard 300. Width change percentage of the rotors from 40% to 110%.

APLICATIONS:

Ventilation, exhaust, industrial processes, marine, power plants, steel mills, pollution control systems, etc..

OPERATING CHARACTERISTICS:

Operating Range: Flow rate up to 220,000 m3/h and static pressure up to 750 mmca.
Mechanical efficiency: Above 80% in the range of maximum yield
Power consumption profile: "LIMIT-LOAD"
Operated fluid: air or gases without excess abrasive particles.
Temperature: Up to 80°C – Standard construction. Above, up to 400 °C – Requires special fittings.

CONSTRUCTION: (INDUSTRIAL HEAVY-DUTY)

● Structure - Profiles of welded carbon steel plates, providing security and robustness to the equipment.
● Housing - High thickness carbon steel plates, welded, with aerodynamic "spiral" shape.
● Rotor - Designed with a minimum safety factor of 1.2 on the maximum speed of the class, consisting of:
   - Center - Precision machined carbon steel, fixed to the shaft with screws and "key".
   - Back plate - Carbon steel disk, high thickness, structured, clamped to the center with locked screw.
   - Blades - Carbon steel aerodynamic profile (airfoil) structured with "ribs" according to the constructive class and size, welded to the back plate and the cone of the rotor.
   - Rotor cone - Carbon steel conformed to hyperbolic flow profile.
● Shaft (on the applicable arrangements) - Carbon steel SAE 1045 precision machined, minimum safety factor of 1.2 on the maximum speed of the constructive class.
● Bearings (on the applicable arrangements) - Calculated for a minimum life L10 of 40,000 hours.
● Transmission - Pulleys and "V" belts, calculated for a minimum of 1.5 times the power of the drive.
● Welding - Electrical in an inert atmosphere with qualified procedure 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.