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The Duo Towers in Paris, two new skyscrapers, installed Vulcan S25 in Tower 1 and S50 in Tower 2 on main cold water lines. With 180m and 125m heights, they protect offices, restaurants, shops, and a 139-room hotel.
The Duo Towers are two new skyscrapers located in Paris, France, designed to provide premium office and commercial space.
Brand New Construction
Protected from day one with Vulcan
"The towers were new built before few months. The Vulcan units treat the water supply lines of both towers. Until now they did not have any limescale issues."

Tower 1
Height: 180 meters
Levels: 39
Office Space: 69,000 m²
Vulcan Model: S25
Installation: Main cold water line
Amenities: Auditorium, restaurant, shops
Tower 2
Height: 125 meters
Levels: 29
Office Space: 19,000 m²
Vulcan Model: S50
Installation: Main cold water line
Amenities: Corporate restaurant, shops, hotel with 139 rooms, restaurant, panorama bar

Vulcan S50 installed at Duo Tower 1

Vulcan S50 Impulse bands- Tower 2

Vulcan S25 installation
Project: Duo Towers
Location: Paris, France
Type: Twin skyscrapers (new construction)
Tower 1: Vulcan S25 on main cold water line
Tower 2: Vulcan S50 on main cold water line
Status: New construction, protected from opening day
Both towers protected from day one
Confirmed after initial months of operation
Offices, hotel, restaurants, shops
No ongoing work required
Vulcan S25 Technical Specifications
Max Pipe Diameter: | 4 inches |
Max Water Flow: | 130 GPM |
Wattage: | 2.25 W |
Dimensions: | 7.9" x 4.9" x 1.6" |
Pipe Materials: | All types |
Maintenance: | Zero |
Vulcan S50 Technical Specifications
Max Pipe Diameter: | 5 inches |
Max Water Flow: | 300 GPM |
Wattage: | 2.25 W |
Dimensions: | 7.9" x 4.9" x 1.6" |
Pipe Materials: | All types |
Maintenance: | Zero |
The Duo Towers demonstrate the power of prevention. By installing Vulcan during new construction, both towers have operated without any limescale issues since opening. Tower 1's 180 meters of offices, auditorium, restaurant, and shops are protected by an S25. Tower 2's 125 meters of offices, corporate restaurant, shops, and 139-room hotel are protected by an S50.
Join leading developments like Duo Towers in choosing Vulcan for maintenance-free scale prevention from day one.
Waslix provides non-chemical, maintenance-free scale prevention using Vulcan technology. This case study documents Vulcan S25 and S50 installations protecting the main cold water lines of the Duo Towers in Paris, France.

Waslix gathers, organizes, and researches a massive range of products across water, light, air, and energy. We demystify complex technologies to simplify your high-involvement purchasing decisions, making complete solutions easily accessible.
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