Motor :

• Totally Enclosed, Water Filled, Squirrel Cage, 2 pole (3000 RPM Syn. Speed), suitable for Wide Voltage, 3 Phase, 50 Hz, AC supply.
• Three Piece Construction with centre S.S. - Ease in rewinding &amo; longer life.
• Special water resistant PVC insulated copper wire.
• Specially designed Thrust bearing - Lower power consumption.
• Epoxy coating treatment to all ferrous parts of the motor - Rust Prevention &amo; longer life.
• Specially designed pressure compensation device.
• Specially designed water filled and water lubricated motor.
• Specially designed seals to avoid sand entry.
• Dynamically balanced rotor - Vibration free, Longer life &amo; better efficiency
• Energy Efficient - Saves power &amo; Electricity Bills.
• SS Sleeves to prevent Rotor shaft.

Pumps :

• Single / Multistage Centrifugal pump with diffuser casing construction and radial / axial or mix flow type Impeller design.
• Suitable for sandy water application.
• Epoxy coating treatment to all ferrous parts - Rust prevention &amo; longer life.
• Dynamically balanced Impellers with pump shaft - Better Efficiency &amo; Performance
• Non return valve fitted to discharge outlet to prevent backflow - Longer life
• Stainless steel Pump shaft - Rust Prevention &amo; Longer Life.
• G.M./S.S. Impellers - Better Efficiency &amo; Longer Life.

General :

• Better design - Better Efficiency - Low Power Consumption.
• Silent running.
• Ease in Installation due to streamlined construction.
• Reliable and safe in operation.
• 100% Performance testing of Pumps &amo; Motors

Applications :

• Agricultural farms.
• Sprinkler irrigation, Drip irrigation.
• Water supply for Industrial / Commercial Establishments and villages.
• Multistoried buildings.
• Construction sites.
• Mining applications.
• Ornamental fountains.

Standard Specifications :

• Range : 1.1 kW to 37.0 kW ( 1.5 HP to 50.0 HP).
• Pipe Size : Delivery pipe size 50 mm to 150 mm.
• No. of Stages : Upto 28.
• Total Head : Upto 286 metres.
• Capacity : Upto 4000 LPM.
• Liquid : Clean water
• Borewell Size : Suitable for 150 mm to 250 mm or bigger borewells.

Features :

• Suitable for operation under submerged condition in water.
• Specially designed to withstand wide voltage fluctuations in 1Ph as well as 3Ph.
• Provided with strainer in S. S.
• Suitable for applications where wide water level fluctuations take place in suction side.
• All internal parts of motor are specially coated with primer to prevent rusting for longer life.
• All 1Ph pumpsets are supplied with 10 metres PVC insulated cable and with Control Panel and all 3 Ph pumpsets are supplied with 5 metres PVC insulated cable.

More Features	SM Series	OS Series
Bush Material	Carbon	GM
Bearing Material	Ceramic vs Carbon	SS vs Carbon
Shaft Material	SS 431	EN 8
Seal	Mechanical Seal 25mm	Oil Seal 38x55x7
Stamping Material	Cold Rolled Ele. Grade	CRC
Cable	Round	Flat
Cable Gland	Brass	NBR
Pump Side 'O' Ring	NBR	Paper
Impeller	Fabricated (upto 1.5HP) (Hyd Balance) CI (Above 1.5 HP) (Dynamic & Hyd. Balance)	Fabricated (upto 1.5HP) CI (Above 1.5 HP) Dynamically balanced.

Applications :
Used for water supply where there is a wide fluctuation in water level in suction tank or water supply source.

• Irrigation
• Small farms
• Bungalows, Multistoried Buildings
• Gardens
• Domestic water supply
• Community water supply schemes

Standard Specifications :

• Range :- 0.37 to 7.5 kW (0.5 to 10.0 HP).
• Pipe Size :- 25 x 25 to 100 x 100 mm
• Speed :- 3000 RPM (Syn.)
• Total Head :- Upto 57 Metres
• Capacity :- Upto 1830 LPM
• Liquid :- Clear water
• Rotation :- Clockwise when viewed from motor end
• Motor :- Totally enclosed water filled squirrel cage induction motor suitable for 225V/1 Ph and 415V/3 Ph, 50Hz, AC supply.

Crompton Greaves Ltd, Compressor Pumps designed for Domestic, Industrial and Agricultural purpose are provided with high operating efficiency compressor and can draw water from depth (from 100ft. to 400ft.). They are assembled with Motor which stands for quality and reliability and are manufactured and tested to a high standard of excellence. These Pumps are sound in design and robust in construction and give satisfactory service with correct installation and normal routine maintenance.

Special Features :-

• Motor : Special duty motor suitable for compressor.
• Cylinder : Special cast iron, deep finned for quick heat dissipation.
• Inter / After Cooler: Deep finned aluminium alloy specially designed to keep the temperature low and to minimise the formation of carbon.
• Piston : Automotive type low expansion aluminium alloy.
• Valve Plates : Special stainless steel material for high resistance and high efficiency and for self floating.

Crank Shafts : Made of carbon steel dynamically balanced with roller bearing for connecting rod big end and deep grooved ball bearings for journals.

Applications :-
Water supply to :

• Buildings
• Gardens
• Small Farms
• Hotels

Working Principle :-
The Compressor Pumps work on the principle of difference of two inter-connected water columns; the heavier one, balancing over the lighter one on operation. The compressed air is pumped down into the well and gets mixed with water in the delivery pipe as very fine air bubbles by the Air-distributor installed at the end of the air pipe line. This air-water mixture having a low density than the surrounding water column rises in the discharge pipe. On continuation of this process, water is pumped out through the discharge pipe. The hole on the air distributor should be 10mm or less in diameter for efficient air water mixture. The outlet from the delivery pipe must not be connected to the long conveyance pipes since this will cause hammering when the water is ejected out due to large air pockets formed during the horizontal travel of the air water mixture in the pipe. The Compressor Pumps are selected as a last alternative when other types of pumps are not suitable due to very high depth. These pumps deliver water intermittently and continuous flow of water like other pumps is not expected since water is mixed with air.