Page 43 - INCOLA EXCLUSIVE DATA CATALOGUE

INCOLA Soundproof Piping Systems

5.10 Ventilation in VESBO INCOLA

5.10.1 System Denitions

There are many types of waste water drainage systems in use today according to EN 12056-2.
These systems have been developed as a result of differences in the type and use of sanitary
appliances in different countries and also different, justifiable technical traditions.

The systems may be divided into four system types, although there are variations in detail
within each system type.

System I Single discharge stack system with partly filled branch discharge pipes

Sanitary appliances are connected to partly filled branch discharge pipes. The partly filled
branch discharge pipes are designed with a filling degree of 0.5 (50 %) and are connected to a
single discharge stack.

System II Single discharge stack system with small bore discharge branch pipes

Sanitary appliances are connected to small bore branch discharge pipes. The small bore
branch discharge pipes are designed with a filling degree of 0.7 (70 %) and are connected to a
single discharge stack.

System III Single discharge stack system with full bore branch discharge pipes

Sanitary appliances are connected to full bore branch discharge pipes. The full bore branch
discharge pipes are designed with a filling degree of 1.0 (100 %) and each branch discharge
pipe is separately connected to a single discharge stack.

System IV Separate discharge stack system

Drainage systems type I, II and III may also be divided into a black water stack serving WCs
and urinals and a grey water stack serving all other appliances.

System Configurations

Each system may be configured in a number of ways, governed by the need to control pressure
in the pipework in order to prevent foul air from the waste water system entering the building.
The principal configurations are described below but combinations and variations are often
required.

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