NA-06 - Cleaning: Flushing Methods

Table of contents

Practical example I

The Hydrass Valve

The Hydrass Valve or “Berlin flap“ is composed of a plate that is mounted to a metal frame, which is adjusted to the sewer profile. The length of the rotation axis can be freely selected. According to [Loren1998], it should be at the same level as the dry weather/water flow.

Image: 

Flush gate DN 1600, closed position [Loren98a]

 

Image: 

Flush gate DN 1600, open position [Loren98a]

 

 

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