FEATURES
51
The outflowing water is set in
rotation in the Geberit HDPE
Sovent fitting.
The new Geberit
SuperTube system
addresses these flow
errors while eradicating
the need for a ventilation
pipe entirely.
In South Africa, the system has already found a home in
the Acsiopolis development in Sandton, Johannesburg, with
engineers on site indicating their complete satisfaction with
the space-saving advantages of the system. PA
www.plumbingafrica.co.za
The annular flow creates a
stable, continuous column
of air on the inside, allowing
rapid discharge of water.
The basic idea behind the SuperTube system is not new.
The Sovent fitting was developed in Switzerland back in
1959 and was comprehensively refined and tested in
hundreds of varying scenarios before finally being released
onto the market in 1970. Since then, it has been installed
in thousands of projects, with engineers at the Geberit
test facility gradually refining the product over the years to
cope with the increasing demands of modern construction.
The basic physical concept behind this was constantly
being redeveloped until the new Geberit HDPE BottomTurn
bend and Geberit HDPE BackFlip bend fittings were more
recently created, and these have now also made their way
onto the market in the form of an optimal combination
known as SuperTube technology.
“This technology facilitates a consistent discharge pipe
with a pipe dimension of d110, meaning there is no
need for a ventilation pipe. A conventional discharge
pipe achieves a discharge capacity of 12.4ℓ/s, with pipe
dimensions of d160 and an additional d90 ventilation
pipe,” explains their website.
The Geberit HDPE BottomTurn bend allows the wall
of water to break and the annular flow to become a
layered flow without disrupting the column of air.
February 2019 Volume 24 I Number 12