Roof inlet gravity DrainBox DN125 vertical, with PVC collar HL63P/2

Efficient roof drainage with gravitational inlet DrainBox

This vertical DrainBox gravitational roof inlet, equipped with a PVC collar, is a reliable solution for draining water from roofs. Designed by HL (Hutterer & Lechner), it combines a solid construction with easy installation and high performance. It is an ideal choice for both professional installers and building owners looking for an effective drainage system.

Construction and application

The DrainBox inlet is characterized by an adjustable height in the range of 100-160 mm, which allows for precise adjustment to the roof thermal insulation. Made of durable polypropylene, it provides long-lasting protection against corrosion and weathering. The PVC collar facilitates a tight connection with the roofing membrane. Designed for gravity systems, it effectively drains water from the roof surface, minimizing the risk of leaks and structural damage. Thanks to the vertical DN125 outlet, it easily integrates with the existing drainage installation.

Performance and advantages

• Performance: a flow rate of 9.25 l/s guarantees fast and efficient water drainage, even during heavy rainfall.
• Height adjustment: the ability to adjust the height (100-160 mm) makes it easy to adapt to different types of thermal insulation.
• Durability: polypropylene construction provides corrosion resistance and long-term operation.
• Easy installation: the PVC collar simplifies the connection process with the roofing membrane, reducing installation time.
• Versatility: compatible with DN125 sockets and HDPE welded systems from the same manufacturer.
• Solid construction: corrugated sheet ensures the strength and stability of the inlet.
• Cost optimization: thanks to its simple construction and ease of installation, the DrainBox inlet allows you to reduce investment and operating costs.

This roof inlet is not only a functional element but also an investment in the safety and durability of the roof. It provides effective protection against the effects of excessive rainfall, minimizing the risk of building damage.