Multistage Pump in Pakistan

Feed Water Pump in Pakistan

Water Supply and Distribution: Multistage pumps are extensively used in water supply and distribution systems throughout Pakistan. They efficiently lift water from underground sources like wells or boreholes and deliver it to storage containers or directly to urban, suburban, and rural areas. Additionally, multistage pumps are employed in high-rise buildings and housing societies to boost water pressure.

Vertical multistage pumps are a type of centrifugal pump that consists of two or more impellers. Typically, these impellers are mounted on the same shaft, although some pumps may have them on different shafts.

The fluid enters the pump casing through the inlet and flows into the impeller’s eye. Mechanical means, such as electric motors or engines, drive and rotate the impeller. The rotation of the impeller generates centrifugal force, propelling the fluid along the impeller vanes and pushing it towards the outer tip.

The fluid then enters the stage diffuser, which acts as a cutwater and guides it into the suction eye of the next impeller. This process continues for each impeller stage until the fluid has passed through all the stages. Finally, the fluid exits the pump casing through a final diffuser and enters the pump discharge.

With each stage, the discharge pressure of the fluid increases, allowing multistage pumps to achieve higher pressures compared to single-stage pumps of the same size. In Pakistan, multistage pumps, including boiler feed water pumps, are widely used when higher pressures are required, which cannot be attained by single-stage pumps of the same size. These pumps are known for their efficiency and reliability, making them suitable for various industries, including power generation, oil and gas, chemical manufacturing, and water distribution systems.

Applications for Horizontal Multistage/Boiler Feed Pump in Pakistan:

Horizontal multistage centrifugal pumps serve as vital components in pressure boosting systems that requir a continuous supply of pressure and flow. These pumps find widespread use in various sectors,  including mining (for mine dewatering), industrial operations, municipal settings, and agricultural applications such as irrigation systems. Moreover, they are particularly suitable for situations where a high pump head is necessary.  If you require more information regarding boiler feed pumps in Pakistan or wish to inquire about their pricing, please do not hesitate to contact us.

Types of Horizontal Multistage Pump:

“In Pakistan, you can find various types of horizontal multistage pumps, including multistage centrifugal pumps. These pumps are designed to transport fluids by converting rotational kinetic energy into hydrodynamic energy, effectively propelling the flow of the fluid. When the fluid enters the pump impeller along or near the rotating axis, it is accelerated by the impeller and flows outward radially into a diffuser or volute chamber (casing), eventually exiting from there.

Moreover, centrifugal pumps have a wide range of applications, including water supply systems, sewage systems, agriculture, and the pumping of petroleum and petrochemical substances. They are often chosen for their high flow rate capabilities, compatibility with abrasive solutions, potential for mixing, and relatively simple engineering.”

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Applications of Multistage Pumps in Pakistan:

Multistage pumps, including horizontal and vertical types, are used in various applications across different industries in Pakistan. Some of the common applications include:

Bulk plants

Wharfs

Paper industry

Wastewater treatment

Filtration plants

Textile industry

Weaving mills

Spinning mills

Cotton industry

Fertilizer industry

Cement industry

Boiler industry

Watercrafts

Factories

Farmers

Mines

HVAC and cooling towers

Municipal water supply

Power plants/water plants

Pump stations

Marine and shipbuilding

Firefighting pump systems

Industrial water supply systems

Multistage pump

Available Products

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FAQ

A multistage pump works by passing the fluid through multiple impellers in series. As the fluid moves from one stage to the next, each impeller boosts the pressure. This design allows the pump to build high pressure without significantly increasing the flow rate.

Multistage pumps are used in applications where high pressure is needed, including:

  • Water supply: Boosting water pressure in municipal, industrial, and residential systems.
  • Boiler feed systems: Supplying high-pressure water to boilers.
  • Reverse osmosis systems: Providing the necessary pressure for water filtration.
  • Irrigation systems: High-pressure water distribution in agriculture.
  • HVAC systems: Chiller and condenser water circulation in heating and cooling systems.

  • Higher Pressure Output: Multistage pumps can achieve much higher pressures than single-stage pumps.
  • Energy Efficiency: They are more efficient for high-pressure applications, as they require less power to reach the desired pressure.
  • Compact Design: Multistage pumps offer a compact solution to high-pressure requirements, reducing the need for a larger pump.
  • Quiet Operation: Multistage pumps tend to operate with less noise and vibration.

Multistage pumps are suitable for a wide range of fluids, including:

  • Clean water
  • Slightly aggressive fluids
  • Light oils
  • Seawater (with appropriate materials) Note: Solids or very viscous liquids may require different pump types.

When choosing a multistage pump, consider the following factors:

  • Required pressure: How much pressure does your system need?
  • Flow rate: How much fluid needs to be moved?
  • Type of fluid: Ensure the pump is compatible with the fluid being pumped.
  • Operating environment: Consider the temperature, pressure, and conditions where the pump will be installed. Consult Wellco's team for help in selecting the appropriate model for your specific needs.

Routine maintenance tasks for multistage pumps include:

  • Inspecting and cleaning impellers.
  • Checking for wear on seals and bearings.
  • Monitoring pump performance for pressure drops or unusual noises.
  • Lubricating moving parts as per manufacturer’s guidelines. Regular maintenance ensures long-term reliability and optimal performance.

Multistage pumps are typically designed for clean liquids and may not be suitable for handling solids or slurry. For fluids containing particles or debris, other pump types, such as slurry pumps, are better suited.

Materials used in multistage pumps vary depending on the application and fluid properties. Common materials include:

  • Cast iron
  • Stainless steel
  • Bronze These materials ensure durability and corrosion resistance.

Multistage pumps can be powered by:

  • Electric motors (most common)
  • Diesel or gasoline engines (for remote or off-grid locations)