Low-noise pipe elbow MAGNAPLAST Kolano dBB 110/30 SKOLAN-dB for 110 mm drainage, 30°

Kolano dBB 110/30 SKOLAN-dB is a low-noise pipe elbow from MAGNAPLAST designed for 110 mm drainage systems with a 30° bend. It is intended to reduce flow and operational noise in wastewater and drainage installations, providing improved acoustic performance in sewer stacks and horizontal runs. The elbow is suitable for use in residential and commercial plumbing, renovation works and new build projects where noise reduction in sanitary and drainage piping is required.

Advantages

The 30° low-noise elbow minimizes turbulence and water hammer effects that generate noise in drainage systems, offering quieter operation compared with standard fittings. Its design integrates sound-damping properties that reduce the transmission of flow noise through the pipe network. The product is compatible with standard 110 mm drainage connections, enabling straightforward integration into existing systems and new installations without special adapters.

Suitable for

• Residential drainage and sewer stacks
• Commercial plumbing systems in multi-storey buildings
• Renovation projects where improved acoustic performance is required
• New build installations with noise-sensitive areas

Key specifications

• Pipe diameter: 110 mm nominal
• Bend angle: 30°
• Function: low-noise / sound-damping elbow for wastewater and drainage
• Application area: internal sewer stacks, horizontal drainage runs and branch connections
• Material: engineered plastic suitable for drainage systems

How to use

Install the MAGNAPLAST Kolano dBB 110/30 SKOLAN-dB by connecting it to compatible 110 mm drainage pipes using the same joining method as standard fittings for the system (socket or push-fit as applicable). Ensure pipe ends and joint surfaces are clean and free of debris before assembly. Align the elbow to achieve the required 30° directional change and secure the connection according to local plumbing practice and the pipe manufacturer's instructions. Check for correct slope and sealing after installation and perform a water test to confirm leak-tightness and proper flow.

Usage recommendations

For optimal noise reduction, install low-noise elbows at points where vertical stacks transition to horizontal runs or where branch flows enter main drainage lines. Maintain accessible inspection points and follow local regulations for venting and slope. Avoid excessive mechanical stress at joints and use recommended supports to prevent deformation that could affect acoustic performance.