Floor basement inlet DN75/110 horizontal with backwater lock and 3 inlets DN40/50, with cover and frame for flush mounting HL70-3020

Floor inlet with lock and additional connections

This floor inlet, made of durable polypropylene, is a practical solution for draining water in basements and other areas prone to flooding. Designed for functionality and ease of installation, it combines performance and versatility. A horizontal drain DN75/110 ensures efficient water drainage, and the built-in backwater lock minimizes the risk of sewage backflow during floods or heavy rainfall.

Construction and application

The inlet is equipped with three additional inlet connections DN40/50, factory sealed, which allow connection of additional devices or drains without the need for complicated adapters. This is particularly useful when installing in utility rooms, laundries or workshops. The inlet flange allows for a tight connection with the waterproofing layer using dedicated sealing kits from the HL83 series – which is crucial for ensuring long-term protection against moisture. The cover with a grate can be adjusted in height and filled with a tile, allowing for aesthetic matching to the interior design. A load capacity of up to 300 kg guarantees safe use even in high-traffic areas.

Advantages and benefits

• Versatility: Additional inlet connections allow for flexible connection of various devices and drains.
• Flood protection: The built-in backwater lock protects the room from sewage backflow.
• Easy installation: The inlet flange allows for a tight connection with waterproofing.
• Aesthetics: Adjustable cover with a grate allows for matching to the surroundings – it can be covered with a tile.
• Durability: Made of polypropylene, resistant to mechanical damage and corrosion.
• Safety: Load capacity up to 300 kg ensures stability and safe use.
• Practical solution: Automatic check valve with manual shut-off provides additional control over water flow.

In addition, a flow rate of 1.0 l/s ensures rapid water drainage even during heavy rainfall or sudden flooding. The weight of the inlet is 1.28 kg and its dimensions (installation height 205 mm, drain grate 112x112mm and cover 12-80mm/132x132mm) allow for easy adaptation to the existing installation.