Metal rain drain R63 (stainless steel / aluminum) d63mm, Akasison A-740650

Flat roof underpressure drainage system made in the technology of welded PE-HD, which includes: roof inlets, pipes and fittings, a system of fastening and pipe connections. The system works on the principle of completely filling the pipelines with water, allowing the discharge of water at high speed in small-diameter pipes, usually without slope. The suction effect is created by the kinetic energy generated by the hydraulic height (being the height difference between the roof outlet and the water outlet).