The ingenious, flow-optimised Geberit SuperTube technology affords more space through optimised hydraulics. The technology creates a continuous column of air in the discharge pipe, meaning a parallel ventilation pipe installation is no longer required. The pipelines with smaller dimensions, which cope entirely without ventilation pipes, require significantly smaller pipe ducts. What’s more, the horizontal pipelines can be laid to a length of up to 6 m without a slope to save on space. As a result, the Geberit SuperTube creates more usable living space.
With its maximum discharge capacity of 12 litres per second (l/s) and a consistent pipe diameter of d110, Geberit SuperTube offers a comparable performance to a conventional system with considerable reductions in space and material requirements.
Taking the Sovent fitting to the next level
The Sovent fitting has already allowed Geberit to succeed in offering a space-saving solution for high-rise buildings by making it possible to do away with a parallel ventilation pipe. The Geberit SuperTube technology is now taking this concept one step further. Changes in direction have always required an additional ventilation pipe in the past, but Geberit SuperTube has now made this surplus to requirements.
Geberit SuperTube saves space in every direction. The ability to do without the additional ventilation pipe reduces spatial requirements in both the vertical stack and in horizontal pipelines, for example with an offset or collector pipe. What’s more, there is also no need for a slope any more in horizontal pipelines of up to 6 m in length. This makes it possible, for example, to install ceiling suspensions extremely close to the concrete ceiling at an offset.
This technology facilitates a consistent discharge pipe with a single pipe dimension. There is no need for a ventilation pipe and, what’s more, the horizontal pipeline can even be laid to a length of up to 6 m without a slope.
Optimised system with Sovent fitting
The solution featuring the Geberit Sovent does not require a parallel ventilation pipe. This achieves a maximum discharge capacity of 12 l/s with a pipe dimension of d110.
A conventional drainage system achieves a discharge capacity of 12.4 l/s with pipe dimensions of d160 and an additional d90 ventilation:
Fittings that put a whole new spin on things
The Geberit SuperTube technology is based on the perfect interplay between four system components. Three clever fittings coupled with the tried-and-tested Geberit HDPE discharge pipe with its high load-bearing capacity combine to create an innovative hydraulic solution that also brings clear additional benefits. These components are permanently welded to ensure a tight connection in the long term.
GEBERIT HDPE SOVENT FITTING D110
The optimised product geometry of the Geberit HDPE Sovent fitting guides the water into the stack and sets it in rotation, which causes it to press against the pipe wall. The resulting annular flow creates a stable, continuous column of air on the inside, which facilitates a discharge capacity of 12 l/s.
GEBERIT HDPE BOTTOMTURN BEND With the Geberit HDPE BottomTurn bend, a change in direction causes the wall of water to break and the annular flow to become a layered flow without disrupting the column of air. This change significantly reduces impulse losses compared with conventional solutions.
GEBERIT HDPE BACKFLIP BEND The twisted Geberit HDPE BackFlip bend causes the layered flow of water to swirl, which allows it to rotate through the vertical pipeline as it drains away in an annular flow. The inner air column in the subsequent stack is maintained.
Finding cost-effective and reliable drainage systems for high-rise buildings often presents a challenge for building owners, sanitary engineers and plumbers alike. With its consistent research into hydraulics and its own, in-house product development, Geberit is raising the bar not only on a technical level, but also when it comes to service. Partnership and reliability are core values that our customers around the world can expect from us. Whether you are looking for planning support, help with invitations to tender, or building site support, the Geberit team is always by your side when you need it.
Geberit tool for supertube planning
Straightforward planning thanks to the dimensioning tool. The web tool guides you through the process of planning a one-dimensional discharge pipe step by step. The values and information obtained can then be collated and downloaded as a PDF file.
Reliable building drainage
Contemporary buildings are setting ever-higher requirements, including for drainage systems. Large quantities of waste water have to be drained safely and reliably over long distances. The hydraulics specialists at Geberit develop and optimise product solutions and systems that can take on this task effortlessly. Our many years of experience in flow engineering, comprehensive physical know-how, and unparalleled simulation and testing opportunities also establish firm foundations in this regard.
Simulations and tests
The Geberit researchers start by using computational fluid dynamics (CFD) to establish potential development variations on a virtual basis in order to filter out optimal solutions for further development within the laboratory environment. The in-house drainage tower, which has been part of the test laboratory for over 50 years, then offers the opportunity to subject the new developments to all relevant hydraulic tests under real-life conditions in a subsequent step. It is only once the prototypes have successfully confirmed the simulation results in intensive laboratory tests that additional practical tests are conducted to develop them further for market.
Taking development to the next level
With the Geberit HDPE Sovent fitting, which was first developed in Switzerland back in 1959, it was finally possible to create a drainage system that did not require an additional ventilation pipe. Countless private and national test installations throughout the world verified the capabilities of this revolutionary innovation before the product eventually made its way onto the market in 1970. Over the course of the continuous product development process, the familiar Geberit HDPE Sovent fitting with d110 dimensions was later relaunched on the market in a flow-optimised version. The basic physical concept behind this was constantly being redeveloped until the new Geberit HDPE BottomTurn bend and Geberit HDPE BackFlip bend fittings were finally created. These have now also made their way onto the market in the form of an optimal combination known as SuperTube technology.
Comprehensive product tests
The existing drainage tower was expanded considerably as part of the development process for the SuperTube technology in a bid to simulate real high-rise conditions in practice and create an offset at a length of up to 6 m. The structures above the roof were designed to represent floors above the offset. The successful results – as well as all of the installations including the comprehensive measuring technology – were documented and confirmed by an external, accredited testing facility once the development process was complete.
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