The DRAGEAU range · EF-i · DS-i
Two devices, one physical method, zero maintenance.
EF-i removes the harmful effects of limescale. DS-i dissolves sludge. Two mechanical devices, each in one solid piece of 316L INOX, warranted for a decade.
No salt · No chemicals · No energy
Two lines
For each problem, a solution.
Limescale encrusts. Sludge corrodes. DRAGEAU answers each one with a dedicated line · the same physics, two missions.
Limescale, neutralised for life.
It reshapes how limescale crystallises so it stops encrusting, and clears what's already there. Your minerals stay intact.
- From the home tap to industry
- No salt, no softeners
- Zero maintenance, forever
Circuits free of sludge and rust.
It puts sludge back into circulation, passivates the metal and halts corrosion in closed heating and cooling circuits.
- Heating and cooling protected
- No purges, no consumables
- More thermal efficiency
The mechanism
See the water from inside.
No electronics. No chemicals. Just geometry, steel and water in motion. Scroll and travel through the device.
Scroll to travel through the device
Water enters and spins.
The internal geometry creates a vortex that multiplies the water's kinetic energy and dissolving power.
It narrows. It accelerates.
The Venturi effect speeds up the flow and sets the stainless-steel core vibrating at the heart of the device.
The waves are born.
Low-frequency, high-intensity vibrations break calcite into a fine powder that no longer encrusts.
Water comes out pure.
Limescale changes form, deposits dissolve and your minerals stay intact. For good.
Physics. Not chemistry.
And it all happens inside a single piece of steel, with nothing to maintain.
The steel
316L Stainless Steel
Every device is machined from a single piece of 316L stainless steel · the surgical, food-grade alloy demanded by the most exacting industries. Polished, sealed and proven to last for decades.
- 0L
- Stainless steel, solid body
- 0 bar
- Working pressure
- 0 years
- Warranty
- +0
- Years building the range
Patented technology, recognised worldwide. 99% of the device is 316L stainless steel; the rest, food-grade seals built to last.
Find your device
Your installation has a size.
Pick the line and your pipe diameter. We'll show you the exact reference · from the home to heavy industry.
EF-i Anti-limescale
- Connections
- ½″ – 6″
- Up to
- 285 m³/h
- Sizes
- 10
Select the nominal diameter
Not sure about the size? Let an advisor confirm it for you.
Which product do I need?The proof
We don't promise it. We prove it.
Limescale crystals under the microscope, bench tests and thousands of installations. Physics is measurable.
Documentation
All the documentation, one click away.
Technical sheets, installation guides and catalogues for every EF-i and DS-i model.
The exact device for your water.
Tell us the size and use of your network. We'll propose the right reference, no obligation.
Free study · No obligation