Write up on Fans

Fan Casing    : SISW / DIDW  
Impeller blades  : Aerofoil, Backward curved, backward inclined, straight, radial, Forward Curved, Radial tip, Paddle wheel.
Impeller Diameter : Upto 2500mm  
Pressure class   : Low, medium, high.
Direction of rotation : Clockwise &anticlock wise, viewed from drive  end.       
Angle of discharge : In degrees: 0, 45, 90, 135, 180, 270, 315
Construction   : Mild steel, stainless steel, FRP lined and rubber lined,spark proof, wearing strips, hard facing, special alloy
Paint finish  : Standard enamel, epoxy paint &Pu Paint.
Application   : To handle clean air, dusty air and corrosive fumes.
Operating temperature : 95°C Maximum in standard construction.
600°C Maximum in special stainless steel construction.
Special accessories : Direct driven by motor / V belt driven / Direct coupled.
Drive arrangement  :

Direct driven by motor / V belt driven / Direct coupled.

Air quantity range  : 300m³/hr to 4,00,000m³/hr
Pressure range  : 350 Pa to 20,000 Pa
Motor power    : 0.25kw to 500kw

Frequency spectrum recorded during vibration analysis

Fig Shows Frequency spectrum recorded blower DE horizontal direction before balancing (top) after balancing (bottom)

FAN TECHNOLOGY FOR THE MANY DIVERSED APPLICATIONS.
Robust, Reliable & easy to maintain.
Decades of experience in fan construction.

Highly qualified designers and engineers, continuous research and development and a modern plan all guaranteed a state of the art product with the highest standard, quality, safety and cost effectiveness.

The fans are having high performance aerofoil blades, backward curved blades and radial blades.

The fan for any application is ensured by 18 different impeller shapes with a aero dynamic property depending on material, no of blades, blade configuration and of any geometry. The impeller geometry can also be specially adapted on request to suit individual customer requirements. The housing are produced in fully welded construction. Special requirements such as titanum class for ventilation components in nuclear power stations are also met. Spark proof designs are made on the basis of AMCA standards.

STANDARD MODEL

Handles clean non corrosive gases with a dust containing up to 0.5 gms/m3 (dry and non adhesive) in a temperature range of up to 85°C. Other uses require detailed specification in order to ensure that the correct design, material and accessories are selected

SPECIAL MODEL

To meet hot, humid, corrosive and dust laden gases up to 3gm/m3 (Abrasive or adhesive) of fiber or shaving carrying contaminated media with temperature range up to 650° C

MATERIAL FINISH

Standard carbon steel
Special carbon steels
Stainless steels
Aluminum
FRP
Heat resistant steel to withstand temperate exceeding 350°C.
Polyurethane painting.
Heat resistant coatings
Coating with powder enamel paint on a phosphate treated base.
Zinc metal spraying
Aluminum metal spraying.
Rubber Lining

ACCESSOIRES AND SPARES

Base frame
Counter frame to base frame
Vibration dampeners
                Standard with hard rubber component option with a steel spring vibration dampeners.
Inlet and outlet compensators
                Standard up to 85°C.
                Optional up to 200°C.
                Optional up to 650°C.
                Optional for chemical loaded applications.
Inlet guard
Inspection cover
Drain connection.
                Optional inlet filter
                Optional provision for heat insulation
                Optional inlet silencer
                Optional outlet silencer
Standard shaft guard
Standard grease lubrication nozzle          
                Optional lubricant seal
                Optional automatic grease lubrication, optional inlet vane control.
                Special oil lubricated blocks and bearings
                Special resilient and gear couplings.