Pump manufacturer KSB has released a new generation of its Omega water pump, placing energy efficiency and serviceability at the centre of the redesign.
Launched ahead of IFAT 2026, the Omega 2 series builds on the company’s established axially split volute casing pumps, which are widely used in waterworks, desalination plants, district heating and cooling systems, and a range of industrial applications.
According to KSB, the latest iteration reflects both tightening efficiency expectations and the practical realities of maintaining large pumps in continuous service environments.
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Hydraulic optimisation and lower energy input
A key focus of the Omega 2 redesign has been the hydraulic system. Structural changes to the pump internals have improved efficiency across the operating range, reducing the energy input required to deliver the same hydraulic performance.
In water sector applications where pumps operate for long hours under steady loads, incremental efficiency gains can translate into significant reductions in operating costs and emissions over the asset life.
KSB says the optimised hydraulics also support operation at higher speeds while meeting demanding requirements for net positive suction head, bearing life and noise emissions.
Design aimed at reliability
Reliability remains a core design objective for the Omega 2 series. The pumps use double-entry impellers combined with double-volute casings to balance axial and radial forces, a configuration intended to reduce mechanical stress and extend service life.
A self-centring rotor and self-positioning mechanical seal further support stable operation, particularly in large-diameter installations where alignment tolerances are critical.
Material options include nodular cast iron, stainless steel and duplex variants, allowing the pumps to be specified for different water qualities and operating environments.
Faster maintenance without dismantling
Beyond efficiency gains, KSB has placed strong emphasis on reducing maintenance effort and downtime. The Omega 2 pumps are designed so that key components can be replaced without removing the motor or disconnecting the pump from the piping.
This approach allows servicing to be carried out more quickly on site, an advantage for utilities and industrial operators seeking to minimise outages and labour costs.
The company describes the design as particularly service-friendly, reflecting feedback from operators responsible for maintaining critical pumping assets.
A broader market context
The Omega 2 launch comes as utilities and industrial water users face growing pressure to improve energy performance while maintaining reliability in ageing networks.
KSB, which operates across five continents and generated approximately €3 billion in revenue in 2024, positions the new pump series as a response to those dual challenges, combining incremental efficiency improvements with design features aimed at long-term operability.