TWIN LOBE ROOTS BLOWERS

INTRODUCTION 

HARISH Rotary Positive Blowers are approved by leading consultants confirming to BS : 1571. Impellers are machined on imported milling machine from one piece fine grain iron castings, strong shafts of high carbon steel are carefully turned and fitted into impellers. Timing gears are cut from solid blanks and generated on the finest precision equipment.Every Blower is tested and operated before release, to assure good operating condition and trouble free service.

HARISH Rotary Positive Blowers are being widly used in various Cement, Steel, Chemical, Food, Sugar, Process Industries, Major Water Treatment Plants, Distillery Units, Electroplating Plants & other Industries-It is available in wide ranging capacities.

 SPECIAL FEATURES

• Power economy-develops only sufficient.
• pressure to overcome system resistance.
• No internal contact of moving parts.
• No surging at reduced capacities.
• Positive air displacement.
• Fewer moving parts-no springs,va|ves or vanes to wear.
• Parts interchangeable on same size models.
• Oil-free air delivery.
• High volumetric efficiency.
• Compact.
• Low mechanical friction-minimizes power losses.
• Optimum sizes and ratings.
• No special, expensive, custom-built equipment is needed.

ACCESSORIES

Available accessories include relief valve, inlet fiter,check valve, extended base, V-belt drive, flexible couplings.

ASSEMBLY

HARISH blowers are designed and built with close tolerances between the impeller, casing and head plates to minimize “back-slippage” of air and improve efficiency.

OPERATING PRINCIPLE

The basic HARISH rotary blower consists of two figure-eight shaped impellers mounted on parallelshafts. These shafts rotate in opposite directions within an elongated cylindrical housing. As each impeller lobe passes the inlet, the impeller traps a constant volume of air, carries it around the case,and discharges it at the outlet. This cycle repeats four times with every revolution of the drive shaft.

APPLICATION PRINCIPLE

The HARISH blower is a positive displacement machine which discharges a constant volume,Pressure is not developed inside the blower, but by the demand of the system. Discharge pressure,therefore, varies to meet the system’s load conditions (pressure and flow). Volume is nearly constant with pressure fluctuations, except for a slight increase in slip as the pressure rises. Horsepower is proportionalto pressure. The characteristics of the Universal RAI make it ideal for direct connected or v-belt drivenlow pressure and vacuum applications.

Water Treatment Plants

Effluent Treatment Plants

Cement Plants

Chemical Plants

Electroplating Plants

Paper Plants

Yarn Dying

Vaccum Moulding

Polyster Chip Conveying & Dying

Pneumatic Conveying

Sugar Industries

ICE Plants

Thermal Power Stations

Dairy Refrigetaion Plants

Sewage Treatment Plants

Aqua Hatcheries