PERFORMANCE RANGE

Flow Rate	upto 1980 LPM.
Manometric Head	upto 60 m.
Operating Limits
Maximum Water Temperature	+30oC
Maximum Sand Content	20 gm/m3
Ratings 2.2 kW (3.0 HP) to 7.5kW (10.0 HP) with Three Phase (Single Stage Pumps). 1.5 kW (2.0 HP) with Single Phase and Three Phase option (Two Stage Pumps)	Voltage Range Single Phase 160 V to 250 V Three Phase 250 V to 456 V

DESIGN PRINCIPLE

The AHOW Series pumps are submersible type pumps with a motor which is completely submerged under water during operation. In fact the unit gives satisfactory performance only when completely submerged. These pumps are primarily 'centrifugal' types and are either of single stage or two stage design. The suction and delivery openings are provided with a threading suitable for direct coupling of respective pipes. The impellar is mounted on the extended motor shaft and it transmits a radial motion to the water from the center outwards with a minimum of hydraulic loss converting kinetic energy to pressure energy and delivers the water through the volute. Two stage pumps work with two sets of Impellars & Volutes back to back in series. The front Impellar sucks water and discharges it through the first volute into an intermittent chamber and the second Impellar transmits energy to the water and discharges it out to the delivery pipe through the second volute casing. The axial hydraulic thrusts are perfectly balanced by the back-to-back arrangement on the same shaft and thus avoid overloading of the motor bearings.

PUMP APPLICATION AND INSTALLATION

openwell submersible pumps are suitable for pumping clean & clear water not containing abrasive particles aggressive to the pump components. The pumps are specifically designed for high reliability and continuous use in heavy duty agricultural and industrial applications. Common applications are marginal farming / orchards / residential buildings / bunglows / hotels / hospitals / clubs / lawn sprinklers / car - washing / water circulation and hydropneumatic systems.

AHOW Series pumps combine the advantages of a Submersible Pump with the performance of a Monobloc Centrifugal pump. As Submersible pumps they assure reliable operation even at considerable depth and at the same time perform with stable outputs as in the case of Centrifugal pumps.

These pumps are installed only in a horizontal position in a similar manner of centrifugal monobloc pumps ensuring that the complete unit is fully submerged under water. The suction end pipe is to be connected with a strainer at the pipe end. In case the water level is expected to drop or if the pump is mounted above the water level a hose - pipe is to be connected to the delivery pipe to spray water over the motor and pump.

SALIENT FEATURES

Pump
• Volute Casting • Impeller • Mechanical Seal • Breather	Cast iron - high efficiency, reliability and consistency of performance. Cast Iron with a special moulding technique - consistent profiles, higher performance. Ceramic and Graphite - higher life. Specially designed breather valve & pipe for maintaining flooded water condition inside the pumpset

Motor
Totally enclosed for continuous operation - single phase or three phase.
• Winding Wires • Single Phase Motors • Body • Shaft • Thrust Pad • Bearings	Plastic insulated Polyester Permanent Split Capacitor - no centrifugal switch - higher reliability Cast Iron - Rugged construction Hardened Stainless steel grade - AISI 420 - higher life. Specially designed thrust pads for high axial loads - higher reliability Leaded Bronze Bush Bearings.

WARRANTY   One year from date of supply

Note - The Product shown may differ from the actual supply in view of continuous changes in design.  
          Performance subject to continuous improvement.