Product Overview:

MSI Industrial Fans Series - LL are suitable for the systems of Central Ventilation, Air Cooling, Air conditioning, Dust Collection, Fume Extraction, Clean Air Rooms, Heating, Hot Ovens, Furnaces, Pneumatic Conveying and various types of Industrial applications. These fans are provided with medium speed double curved (Forward Curve Radial Tip) bladed impeller with stationary directional inlet vanes (Inlet Guided Vanes). These fans are available in Single Inlet Single Width and Double Inlet Double Width construction suitable for duct mounting and plenum mounting.

The impellers of Series - LL of these fans have deep wide blades. Which are more efficient and very rigid on account of double curved construction. Also extra width and open tip of impeller blade helps in maintaining low velocity resulting in low noise operation. The LL - Series impellers with the dia up to 630 mm are fabricated without Tie - Rods and whereas impellers with the dia from 710 mm up to 2760 mm are fabricated with Tie - Rods. The impellers are fabricated in all welded construction.

The stationary Inlet Guide Vanes are furnished as standard part on MSI - LLS and MSI - LLD fans. These Guide Vanes are provided to reduce turbulence and air noise and increase efficiency. These are particularly valuable to the user when elbows and obstructions on the inlet bend to disturb the proper entry of air into the fan impeller. In addition to the above benefits these vanes also act as an effective safety guard without the obstruction to air flow as usually uncounted with Guard Screen.

The impellers are designed for limit load characteristics and do not consume more power than specified on particular speed irrespective of the air quantity discharged and pressure developed. This provides excellent safety in selecting the motor sizes / ratings.

These fans are provided with double row self aligned ball bearings in Arr. V BD (V. Belt Driven) and whereas Arr. DD (Direct Driven) the impeller is directly mounted on to the motor shaft.

BALANCING:
All the impellers are balanced both statically and dynamically to give noiseless and vibration free service.

SPLIT - HOUSINGS:
The split - housings can be furnished with horizontal split - housing to facilitate wheels removal at addition cost. Sizes from wheel dia 1525 mm and up to 2760 mm are furnished as a standard horizontal split - housing. Housing splits are caulked and bolted when fans are shipped assembled.

OUTLET FLANGE:
All the blowers with housings are supplied with outlet flange for easy connection for the supply ducts.

HOUSING - DRAIN :
Half coupling, less plug. Welded in the lowest point of the scroll / housing for cleaning and draining out the water.

PAINTING:
All the blowers are grinded and two coats of anti corrosion resistant primer are applied before given final finish of enamel / epoxy paint as per the customer requirements.

CLEAN - INSPECTION DOOR:
Flush mounted, plate type with quick opening tension latches and airtight with rubber gasket.

BEARINGS:
All classes of fans are supplied with grease-lubricated heavy - duty self-aligning ball bearings flange or pillow blocks with spherical roller bearings used on larger and higher duty fans. Bearings are selected for continuous operation and ample size for the best possible operating results.