What is a Double Suction Pump?
A centrifugal pump designed with liquid entering the impeller simultaneously from both sides along the shaft axis. This balanced intake differentiates it from single-suction pumps.
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![Double Suction Centrifugal Pump]()
Double Suction Centrifugal PumpDouble Suction Centrifugal Pumps achieve hydraulic balance and high flow via dual-entry impellers.view more -
![Double Suction Pump Design]()
Double Suction Pump DesignWe engineer high-efficiency double suction pumps for critical water/wastewater applications – delivering balanced axial thrust, exceptional reliability, and energy savings in high-flow systems.view more -
![Double Suction Impeller]()
Double Suction ImpellerDouble Suction Impellers achieve hydraulic equilibrium by balancing fluid forces through dual-inlet design.view more
Key Advantages
Balanced Axial Thrust
Significantly reduces load on bearings/shaft, extending lifespan.
High Flow Capacity
Handles larger volumes than comparable single-suction pumps.
Reduced NPSH Requirement
Lower inlet velocity decreases cavitation risk.
Stable & Smooth Operation
Symmetrical flow minimizes vibration and hydraulic imbalance.
Robust & Serviceable
Common horizontally split case design allows easier maintenance access.
Main Features
- Dual-Sided Impeller: Core element enabling balanced flow intake.
- Horizontally Split Case: Predominant design; top half removable for internal component access.
- Axial Thrust Management: Primarily achieved through hydraulic balance.
- Between Bearings Design: Shaft rigidly supported at both ends.
- Sealing: Utilizes mechanical seals or packing glands at both shaft exits.
Common Types
Horizontal Split Case Pump
Most widespread; casing splits horizontally for maintenance.
Vertical Split Case Pump
Casing splits vertically; used where footprint is constrained.
Drive Methods
Direct motor coupling, belt drive, or engine driven.
Primary Applications
Ideal for high-flow, medium-to-high head applications requiring reliability:
Municipal Water
Raw water intake, potable water transfer, boosting stations, treatment plant circulation.
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Industrial Cooling
Large cooling tower systems, process cooling loops.
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Irrigation & Drainage
High-volume water transfer.
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Building Services
Large HVAC systems (chilled/condenser water), fire pumps.
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Power Generation
Cooling water, condenser extraction, feedwater.
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