Installing the pump chamber extension when using the D400 pump chamber cover
NOTICE
Using a load distribution plate, a fully sealed pump chamber is not possible.
With a high ground water level and a load distribution plate, increased water ingress into the pump chamber is possible. This water ingress can overload the pump. There is a risk of pump system malfunction.
NOTICE
If a D400 pump chamber cover is used, install a load distribution plate.
- Cut the pump chamber cover flange at the pump chamber or at the pump chamber extension.
- The load distribution plate must be provided by the customer.
1 | Cover flange |
When using the D400 pump chamber cover, a maximum pump chamber extension of 570 mm is possible. The load distribution plate adds 300 mm to the extension. Keep this in mind during installation.
If an extension higher than this minimum 300 mm is required, it is recommended to use standard concrete adjusting rings.
To install the load distribution plate correctly, make sure to cut off the cover flange on the pump chamber.
To meet road traffic requirements, make sure to install a dedicated substructure when filling the pit.
For more details, refer to the “Filling the pit” section.
