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Wavin AS+
Technical Manual
Phone. +31(0)38 42 94 951
3.1. Sound insulation by Wavin AS+
The excellent sound protection properties of Wavin AS+ are
primarily attributed to its thick-walled design as well as
special molecular structure and the high density of ~1.9 g/cm
3
of the material. This property enables Wavin AS+ to absorb
airborne sound as well as mechanical vibrations.
A contribution to sound protection is made by the special
product design and system solutions.
Swept branches for minimal flow disturbance in the
down pipe.
Due to unique system bracket and high structure
born sound prevention
In studies conducted at the Fraunhofer Institut für Bauphysik
(Fraunhofer Institute for Building Physics), Stuttgart, Wavin
AS+ has proven its excellent sound absorption properties.
The tests were performed in a laboratory accredited by
the German Accreditation System for Testing (DAP, file no.
PL-3743.26) according to standard EN ISO/IEC 17025.
The measurements in this test were performed following
German standard DIN EN14366 and DIN 52 219:1993-
07; noise excitation by stationary water flow with 0.5 l/s,
1.0 l/s, 2.0 l/s., 3.0 l/s and 4.0 l/s.
3.2. Noise calculation software
Determination of the sound level as conducted by Fraunhofer
Institut Bauphysik is in general useful to determine the noise
level of a pipe system in a static situation. The test method
is, however, based on a laboratory set up in which all building
parameters are kept the same except for a change in water
flow. As a result it is impossible to obtain by this test a realistic
figure of the noise levels for the protect chambers of actual
projects.
Fig. 1: Double branch.
Fig. 2: Wavin System
bracket.
3. Acoustics
