These are utilized in internal drainage systems for the discharge of domestic wastewater under non-pressure flow conditions (where the leak test is performed at a maximum of 0.5 bar), specifically where sound attenuation from water discharge is desired.
Reference standard: EN 1451.
They are black, mass-colored, single-layer, and made from PP with mineral additives.
The size range includes diameters from 32 mm to 160 mm.
The connection system uses a socket and gasket, requiring no special tools, adhesives, or solvents.
Acoustic performance is 16 dB for a flow rate of 2 l/s. The sound-absorbing properties are certified following measurements conducted in the laboratories of the Fraunhofer Institute in Germany, in accordance with EN 14366. The use of sound-absorbing clamps is recommended.
Fire behavior classification, in accordance with DIN 4102-1, falls under class B1. When passing through ceilings, we recommend using fire collars as a protective measure against flame propagation.
To reduce the noise level of internal drainage systems, we recommend:
• Selecting a system of pipes and fittings with good sound-absorbing properties;
• Ensuring correct system design;
• Installing the system correctly using appropriate products.

Material	PP
Tip articol	TOC
UM colete	PIECE
Cod CPV	CPV 44167300-1
Cantitate colet	1
Diametru	50
Diametru(mm)
Unghi	67 Grade
Cod vamal	39174000
Subclasa	FITTINGS PP SOUND ABSORBING SEWAGE PIPES