SERIE 1910B CUSTOM

Centrifugal Fan

LIMIT LOAD – HEAVY-DUTY

BASIC DESCRIPTION

Centrifugal fan with rotor type B LIMIT-LOAD, HEAVY-DUTY, high efficiency, developed, tested and certified by Chicago Blower Corporation. With straight rotor blades backward inclined, design 1910-B. Width change percentage of the rotors from 40% to 110%.

APLICATIONS:

Ventilation, exhaust, industrial processes, mining, refineries, steel mills, platforms, paint systems, pollution control systems, etc..

OPERATING CHARACTERISTICS:

Operating Range: Flow rate up to 1,500,000 m3/h and static pressure up to 1000 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 120°C – Standard construction. Above, up to 600 °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.
● Inlet cone - Carbon steel conformed to hyperbolic flow profile.
● Rotor - Designed with a minimum safety factor of 1.2 on the maximum 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.
   - Blades - Carbon steel, flat, backward inclined (LIMIT-LOAD), structured with intermediary rim, welded to the back plate and the rotor cone.
   - Rotor cone - Carbon steel conformed to hyperbolic flow profile.
● Shaft - Carbon steel SAE 1045 precision machined, minimum safety factor of 1.2 on the maximum speed of the constructive class.
● Bearings - 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.