How NFT’s Supa-Stelth SBV Technology Outperforms the World’s Best

Setting the Stage: A Tale of Two Pumps

In the global pump market, performance under 3 kW (<15-amp single phase) has always involved a compromise between cost, efficiency, and reliability. Until recently, the benchmark for high-efficiency small pumps has arguably been the Lowara 750 W three-phase model fitted with an IE4-rated motor — one of the highest motor efficiency classifications available worldwide.

Retailing in Australia for around A$2,500 (US$1,500), this pump is considered a gold-standard unit in its class. It is also three-phase for a reason: achieving IE4 efficiency in a single-phase motor is nearly impossible due to unavoidable design and power-factor limitations inherent to single-phase operation.

To verify its real-world performance and compare with a top-tier benchmark , we reviewed independent tests conducted by Kelair, the only authorised Lowara (Xylem Inc.) test and repair facility in Australia. Two findings stand out:

• Maximum BEP (Best Efficiency Point) recorded was just 37%, confirmed by both the test data and the supplied efficiency graph.
• The efficiency curve was comparatively narrow — meaning optimal performance is confined to a relatively small operating band.

Enter the DWP 800: Simpler, Smaller, Smarter

Now contrast this with our DWP 800 Super-Stealth Pump, developed by New Fluid Tech (NFT).

Despite costing under US$200 (US$175) in small quantities, this compact single-phase pump consistently achieves wire-to-water efficiencies of 50–53%, verified independently by three separate testing facilities in China, Australia, and Germany.

That’s not just a slight improvement—it’s a quantum leap in small-pump performance. And it’s achieved without an IE4 motor.

If we were to fit an equivalent IE4 motor to the same hydraulic system, our models predict a further 4% efficiency gain, bringing total wire-to-water efficiency to approximately 57%.

The Science Behind the Super-Stealth Design

The DWP 800’s efficiency advantage stems from NFT’s Super-Stealth Pump Technology — a breakthrough in fluid dynamics and mechanical design that eliminates cavitation.

Traditional pumps lose efficiency through small but cumulative flow disturbances between impeller, diffuser, or volute. The Supa-Stelth SBV system eliminates these interactions through:

• High pressure solid body vortex which eliminates the need for  Volutes, diffusers or cut-waters to realise a pressure again.
• Reduced hydraulic drag by encapsulating the impeller in a solid vortex body of water which has the secondary benefit of "extending" the physical diameter of the impeller for even greater pressure.
• Noise and vibration suppression, due to the elimination of Cavitation

The result is a pump that operates smoother, quieter, and far more efficiently across a broader duty range than conventional designs.

Independent Verification and Cross-Industry Potential

In a comparative test with a competitor submersible pump, the submersible version of the DWP 800 again demonstrated superior efficiency and performance.

These results are consistent across testing over three continents — and multiple laboratories — proving that the technology is not a one-off anomaly but a repeatable, manufacturable advance.

Next Steps: A Ready-to-Scale Solution

For all fixed-speed, single-phase pumps drawing 15 A or less (under 3 kW) — whether surface or submersible — NFT’s Super-Stealth design is fully developed, validated, and ready for collaboration.

We invite manufacturers such as Xylem inc and other industry leaders to explore immediate integration and production opportunities. With minimal adaptation, this technology can dramatically lift efficiency benchmarks across domestic, agricultural, and light-industrial pumping applications.

Final Word

The Lowara IE4 remains a remarkable engineering achievement, but it’s clear that the next leap forward in small-pump efficiency won’t come from motor technology alone — it will come from fluid dynamics innovation.

The DWP 800  proves that with better internal hydraulics, we can do more with less — and finally bring premium efficiency with less energy consumption within reach of the entire global market.

If anyone in the global pump industry has any doubts at all as to the above please feel free to contact us for a free Sample pump that we will happily ship over to you at no cost for independent testing and verification.