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Acoustic Drainage

Soil, drain & rainwater

Acoustic Drainage

Cast iron drainage systems are the quietest on the market fully supported by testing in accordance with BS EN 14366:2004.
hearing is believing

Technical details

  • BS EN 14366 was introduced to provide manufacturers of all drainage materials a simple testing criteria, in order that results recorded would be comparable.
  • The Ensign and EEZI-FIT ranges were tested at the Fraunhofer-Institute of Building Physics in Germany.
  • The tests provide measurements for airborne and Structure-borne sound and flow rates up to 8.0 litres/sec.
  • When comparing results of systems ensure comparable flow rate.
  • Most buildings within the UK require a performance of 30-35 dB(A) according to BS 8233.

Standards & Approvals

  • BS EN 14366: 2004 laboratory measurement of noise from waste water systems.
  • BS 8233:1999 code of practice for governing acoustics within buildings.

Key Features & Benefits

  • Ensign and EEZI-FIT acoustic performance is superior to any acoustic plastic system by 4-5dB(A)
  • 3-4dB(A) = Noise x 2
  • EEZI-FIT achieved a structure-borne acoustic levels:
    • 5 db at 2 litres per sec.
    • 9 db at 4 litres per sec.
    • When installed with cast iron brackets fitted with acoustic dampener.
  • Outperforming acoustic plastic systems by 7-10db (depending on system)
  • Outperforming standard HDPE by approx 20 db - download noise file to hear the difference.




(PDF, 298.39 KB)

See also

Mechanically jointed cast iron drainage system for below ground applications and bridge drainage kitemark approved to BS EN 877