Cast iron Drainage1st Choice

Sound attenuation

Acoustic definitions

Acoustic definitions

Sounds :

Structure-borne comingfrom the seal

Airborne Airborne

+ Structure-borne

Structure-borne coming from supports

Airborne through the wall

Acoustic definitions

Requirements on wastewater installations

• On structure-borne noises (equipment behind the room)

European regulations

Main rooms (living, bedroom,…)

Other rooms (Kitchen, office…)

Germany, France,…

< 30 dB(A) < 35 dB(A)

Conclusion

« Laboratory measurements of noise from wastewater installations »

Inlet

Support device

DN 70 to 150

Wall : 250+50 kg/m²

No sealing

European test method formulated by CEN TC 126

CEN TC 126 is a working group representing a cross section of materials (CI, Plastic, etc.)

• New standard EN 14366: 2004

•Acoustic property of products for construction used in buildings.

Test Results Application in Germany

Structure-borne noises : DN 100 - 220 kg/m² wall - 4 l/s

EG

UG

IBP laboratory – Stuttgart (Independent Test)

Tested Ensign Cast Iron to the New standard EN 14366 : 2004

Bracket Type

Rubber lined Bracket RB422

Ductile Iron bracket fitted with separate

EG Room Living room

UG Room Basement

25dB 29dB

11dB 11dB

ConclusionAirborne noise

Cast iron >6-9dB(A) quieter than Twin-wall PVCCast iron >10dB(A) quieter than HDPE silentCast iron >13dB(A) quieter than stainless steelCast iron >14dB(A) quieter than PVC-U

Airborne and structure-borne noiseCast iron system using RB422 bracket meets the most stringent requirement of BS8233Cast iron system using new separate fitted to ductile bracket EF048 = >6-9dB(A) superior to best plastic material

Tests and Results completed:Independent testing facilityTo the new appropriate standardTest results certified.

ALL MATERIALS SHOULD TEST TO BS EN 14366

European regulations