Manhole with check valve 160/400mm without neck & cover

For 400mm risers
Buy extra 400mm neck and cap

Connection 160mm (if you want less, you can buy a transition)

The well bottom with backwater valve is designed for use in sewer or rainwater systems. The well acts as an inspection/cleaning well and protects buildings from flooding The recommended location for installation is a sewer pipe between the building and the main sewer network.

The well is made of polypropylene, the flap is made of polypropylene and clad in stainless steel sheet. The materials make the well resistant to corrosion, frost and chemical substances.
The mobile flap is fixed to an aluminum rod with a handle. This allows easy removal of the flap for inspection and possible maintenance. After inspection, the flap can be easily put back in place using the aluminum rod.
The aluminum rod is supplied with a build length
up to 1.8 meters. If necessary, the bar can be extended by 0.7 meters, available as an accessory.

Advantages:
Installation of standard check valves often requires large expensive plastic or concrete manholes 800-1200 mm. The Kombi Ringens well is easy to install without the use of heavy equipment. The well can be easily inspected and maintained by the well owner. The color of the well (brown) provides good visibility during inspection.

Applications:
Protects buildings from flooding. Installed on sewer pipes between the building and the main sewer network.