Original Solution | Sound Insulation for Drain Pipes

2025-11-04

Noise level and sources of sewer pipes

Noise Level

When water flows through the sewer pipe

It will produce sound during the journey.

The main cause is vibration, not water flow.

This vibration

Noise from sewer pipes

Around 60dB

The sound environment for normal sleep needs to be in

Below 40dB

<Sources of noise from sewer pipes>

The noise from the sewer pipes comes from

Domestic water supply for residents

Such as washing up, washing machine, going to the toilet

...

High-rise building drainage pipes

Shared by all residents of the building

The upstairs water usage directly affects this apartment and the downstairs residents.

Noise problems have become a source of disturbance affecting neighborly relations.

Drainage pipe sound insulation solution

01

Silenced water pipe

Use silencer water pipes

The pipe itself has sound insulation function.

Its sound insulation principle: Spiral ribs are made on the inner wall of the pipe. The spiral ribs are evenly distributed in a straight, oblique direction, and the angle between them and the center line of the sound-absorbing pipe is 8°-20°. During drainage, the water flows out along the inner wall of the pipe in a straight, oblique direction under the guidance of the spiral ribs, without generating a strong impact on the inner wall, thus reducing noise.

02

Sixth-generation pipe sound insulation cotton (self-adhesive)

Video Analysis:

Applicable to: various drainage pipes, with a sound insulation capability of 54dB.

High density of sound insulation felt indicates strong sound insulation performance. This sound insulation felt has a 2mm damping layer and a density of 4.2kg/m2. After the composite damping layer is applied, the original material's own vibration frequency and sound energy consumption are changed, improving the original material's sound insulation by ≥270%. It is ultra-flexible and adaptable to any solid substrate. It has a single-sided super-strong self-adhesive that completely integrates into the substrate surface.

[Installation Method]

Warm reminder: *Before applying F100B environmentally friendly damping sound insulation felt, the pipe wall must be cleaned. The bonding process should be carried out only when the pipe wall is completely dry and free of dust.

*The amount of product used can be 1-3 layers bonded according to individual needs. Each doubling of the same material can increase the sound insulation by about 3dB/A, and the pipe wall thickness increases by ≤2mm per layer.