Horizontal Multistage Centrifugal Pumps
Robust multistage centrifugal pumps utilising two or more dynamically balanced impellers mounted in series on a single, continuous shaft. This proven architecture generates high pressures incrementally at a fraction of the cost of multiple single-stage pump systems. Each operational stage consists of an independent impeller and ring section casing, delivering exceptional hydraulic head whilst maintaining peak efficiency and reliability.
Advanced Hydraulic Balancing: To eliminate intense axial thrust, stages can be arranged back-to-back in opposing pairs or groups. For alternative configurations, axial loads are continuously managed via an integrated hydraulic balance disc mechanism, ensuring extended bearing life and minimal vibration.
Product Overview
Horizontal multistage centrifugal pumps represent the industrial choice for applications demanding extreme hydraulic head combined with substantial flow capability. By stacking multiple impeller stages in series on a single shaft, these systems deliver cumulative pressure rises without the complexity, cost, or footprint penalties of operating multiple single-stage pumps in series.
The architecture emphasises mechanical rigidity and hydraulic stability. The between-bearing design supports the shaft on both sides, eliminating overhanging forces and providing natural hydraulic balance. All impellers are fitted with replaceable wear rings, ensuring optimum internal clearances are preserved throughout the pump’s operational lifespan.
Design Architecture & Mechanical Engineering
Multistage Series Configuration
Two or more dynamically balanced impellers mounted in series on a single, continuous shaft. Each stage adds independent pressure rise, resulting in cumulative head delivery.
Between-Bearing Design
A rigid, between-bearing architecture supports the shaft on either end, entirely eliminating overhanging forces. This design naturally resists deflection and provides inherent hydraulic balance.
Hydraulic Load Management
To eliminate intense axial thrust loads, stages can be arranged back-to-back in opposing pairs. Alternative configurations utilise an integrated hydraulic balance disc mechanism for continuous load management.
Radial Load Support
The pump shaft is supported by robust bush bearings embedded within each casing section, ensuring the assembly easily withstands maximum radial thrust. Grease-lubricated grooved ball bearings are housed within external brackets on each side to absorb residual forces.
Replaceable Wear Rings
All impellers are fitted with easily replaceable wear rings as standard. This preserves internal clearances and maintains peak hydraulic efficiency throughout extended operational lifespans.
Shaft Wear Sleeves
The shaft is equipped with replaceable wear sleeves as a standard manufacturing feature, protecting the shaft from internal corrosion and erosion.
Operational Specifications
Discharge Size
Customisable to match application requirements.
Operating Direction
Standard clockwise rotation when viewed from the drive end.
Flange Specifications
Suction: PN16 / DIN 2533. Discharge: PN40 / DIN 2535.
Shaft Sealing Options
Heavy-duty gland packing configuration or precision mechanical seal arrangement — flexible architecture to match process demands.
Hydraulic Performance Specifications
Typical Applications
- Industrial boiler feed systems and extreme-pressure water injection
- Long-distance bulk transfer through elevated pipelines
- High-pressure industrial filtration and ultra-pure water systems
- High-head cooling tower and thermal management circuits
- Reverse osmosis and desalination plant feed systems
- Mine dewatering and extreme-depth extraction systems
- Petroleum and chemical transfer in high-pressure applications
Speak to Our KRAL Specialists
Whether you need a standard pump selection, a custom marine skid, or replacement spare parts — our team has the product knowledge and application experience to assist.
- 5 Simgold Street, Simmerfield, Germiston, South Africa
- reception@cyclonesa.co.za
- +27 11 821 5900