Flovac Indoor Vacuum Systems
Indoor vacuum systems are an environmentally friendly alternative to traditional gravity sewers inside buildings providing low maintenance, flexible design, efficient and reliable sewage reticulation.
The use of vacuum drainage systems inside buildings can be found in a wide range of applications. Indoor vacuum systems utilise a central vacuum system to transport wastewater via small diameter pipes to a collection tank where it is pumped in batches to the nearest public sewer network.
Vacuum drainage systems inside buildings are often used in conjunction with vacuum toilets which operate on 1 litre of water per flush instead of the standard 5-10 litres for traditional toilets.
Air is used to transport wastewater and water is used only for the rinsing of the toilet bowl. As negative air pressure is used in small pipes, waste water can be lifted up into the ceiling cavity (up to 6 metres) rather than relying on gravity drainage to the concrete floor below.
Using vacuum toilets is covered in the European Standard EN 12109-1999 “Vacuum Drainage Systems inside Buildings” and have been increasingly used in many countries over the past ten years.
Due to the small amount of water required in a vacuum toilet, independent studies have shown that in a commercial building there is a 76% water savings over a dual flush system and an 86% saving over a standard flush toilet system.
This has enormous consequences for the capital costs and energy requirements of the treatment plant and water can be re-used in the toilets or building cooler towers. Waterless urinals can be used in conjunction with the vacuum system.
Vacuum drainage solutions offer enormous flexibility for the pipe layout during both planning and installation. Main lines may be installed between suspended floors and ceilings. This gives the possibility of connecting sanitation fittings from above and from lower levels to only one single collection pipe. Pipelines do not need to be laid to a slope and are independent of natural falls. In addition to new buildings, ideal applications for vacuum technology are where the sanitation systems of old buildings are to be renewed.