Rainplus® is a siphonic rainwater drainage system designed to reach maximum drainage performance with the lowest levels of water accumulation on the roof.
Valsir Rainplus® fully meets the demands of increasing rainfall levels being registered and guarantees the drainage of rainwater from medium to large size buildings in total safety.
The system uses the building height as the driving force to generate high speed flow rates thus maximizing drainage efficiency.
Rainplus® allows the entire quantity of rainwater to be directed to any part of the building whatsoever thus enabling the implementation of the most modern rainwater harvesting systems. The harvesting and conservation of water are parameters that are taken into consideration and contribute to obtainment of Green Building marks.
The advantages of this technology are numerous; such as the significant reduction in costs and installation times, as well as an increase in the performance of the entire drainage system.
The Rainplus® siphonic system is made up of special roof outlets that are designed and tested according to American Standard ASME A112.6.9 and European Standard EN 1253.
These outlets are connected to Valsir HDPE pipes and fittings, which are sized in order to work under negative pressures, at high flow rates and with a full bore.