BESSFLOW — RAINPLUS is a Siphonic Rainwater Drainage System which originally designed by Valsir, a top leader in Italy’s plumbing market. The system is designed to fully meet the demands of increasing rainfall levels rainwater drainage 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.

BESSFLOW — RAINPLUS allows the entire flow of rainwater to be directed to any part of the building, thus enabling the implementation to our BESSRAIN system, the most modern Fully Automatic Rainwater Harvesting System. In addition, when come to provide compelete pipeworks for any buildings, BESSTEM Conventional Rainwater Drainage System with siphonic technology are totally meshed perfectly in terms of pipeworks’ design and supply.

Entire system is made up of special roof outlets that are patented, designed and tested according to BS EN and ASME standards with wide range of diameters from DN 50 mm to DN 315 mm which the pressures comply to PN 6.