About

Borewell Submersible Pump Description

A borewell submersible pump is a water pump designed to operate fully submerged inside a borewell or deep well to lift water from underground sources and deliver it to ground level or directly into a water supply system. These pumps are engineered to handle deep water extraction efficiently and are commonly used in homes, farms, and industrial settings where water is drawn from deep below the surface.

• The motor and pump assembly are sealed and submerged in water inside the well.

• Water enters the lower intake and is forced upward through multiple impellers (in multi-stage designs), generating enough pressure to deliver water up to the surface.

• Because the pump runs underwater, the surrounding water cools the motor and helps reduce noise and heat.

Key Features

• Submerged operation: Pump is installed underwater inside the well casing.

• Multi-stage design: Multiple impellers increase pressure to lift water from deep levels.

• Sealed motor: Waterproof motor thats built to withstand continuous submersion.

• High efficiency: Better energy efficiency and performance for deep water extraction.

• Control systems: Often used with starters, control panels, and protective devices (e.g., overload protection, dry-run guard).

Common Uses

• Domestic water supply from deep borewells

• Agricultural irrigation (farms, orchards, fields)

• Commercial & industrial water systems

• Pressure boosting for buildings and water networks

• Village and community water supply schemes

Benefits

Capable of deep water lifting (often hundreds of feet/meters)
Quiet operation (since motor runs underwater)
Reduced cavitation risk (water around pump prevents air pockets)
Compact design that fits inside borewell casing
Longer lifespan with less maintenance when installed correctly

Typical Specifications

(Specifications vary by model and manufacturer)

• Power: 0.5 HP to 15+ HP (or larger for commercial/industrial)

• Voltage: Single-phase (for smaller pumps) or Three-phase (for larger)

• Flow rate: Several tens to hundreds of liters per minute

• Head (pressure): Can reach several hundred meters depending on design

• Stages: Multiple impeller stages for higher heads

How Its Installed

• Lowered into the borewell using ropes/roping systems or pipes

• Connected to a surface control panel (starter, protection devices)

• Connected to discharge piping that carries water to tanks or outlets

• Powered by a suitable electrical supply

Limitations / Considerations

• Correct selection of pump size and power is important for efficiency

• Must use appropriate diameter to fit your well casing

• Dry-run protection is advised to prevent motor damage if water level drops

• Requires proper electrical safety and grounding