The DN 70 and DN 100 Overfilling and Closing Valve Wells of Wavin-Labko are used in the sewerage of draw-off points below the backwater height in air raid shelters. They are not meant for the sewerage of toilet water because of the risk of blockages.
For the sewerage of toilet water in an air raid shelter we recommend the Closing Valve Well for Toilet Water designed for the purpose.
A blockage-free rubber gate valve is used in the well.
All the Valve Wells meant for air raid shelters meet the requirements placed on air raid shelter equipment.
The plastic Overfilling and Closing Valve Well is designed for private house use, or for similar application, for sewerage of draw-off points below the backwater height.
The Leakage Water Well is designed as a collecting and pumping well for rooms without sewerage.
