Roof drain DN40/50 with horizontal outlet, siphon, plastic cap, 150x150mm frame and cast iron grate 137x137mm HL510NG

Roof Inlet DN40/50 – Reliable Drainage for Terraces and Balconies

This roof inlet, with a drain diameter of DN40/50, is a robust solution for draining water from terraces, balconies and other areas exposed to precipitation. The design with a horizontal outlet facilitates integration with the existing hydraulic installation, and the built-in water trap effectively prevents the return of unpleasant odors. The durable cast iron grate (137x137mm) provides resistance to loads, and the adjustable cap height (34-78mm) allows for adaptation to differences in the thickness of structural layers.

Construction and Installation

The inlet is characterized by a well-thought-out design that combines functionality with ease of installation. A frame with dimensions of 150x150mm provides stability and allows for solid embedding of the inlet in the substrate. The inlet collar is compatible with sealing sets from the HL83 series, which guarantees a tight connection with the waterproofing layer – crucial for protecting the ceiling from dampness. This makes installation quick and safe for both professionals and DIY enthusiasts.

Parameters and Application

This inlet has been designed for intensive use. It exhibits a high flow rate – 0.55 l/s – which ensures effective drainage of water even during heavy rainfall. It is also resistant to temperatures up to 85°C, which increases its durability and versatility. A load capacity of 1.5 tons makes it suitable for areas with high pedestrian traffic. The possibility of expanding the drainage system by using straight and collar extensions (HL340N, HL85N, HL85NC, HL85NH) allows for flexible adaptation of the solution to individual project needs. The material of construction is polyethylene (PE), providing resistance to corrosion and long-term operation.