Check Valve. Type: ZK-UZBB
For installation inside the pipe outlet in existing concrete troughs.
Installed only in GROUND wells/troughs. Ø110-Ø160.
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Check valve that reduces the risk of backflow of surface water.
Dimension Ø100-Ø160 is only installed in shallow wells/troughs. Easy installation.
The check valve consists of a self-closing flap and has a unique connection that seals perfectly against the wall of the pipe.
The check valve is made of age- and corrosion-resistant material, PP (polypropylene).
The flap has a rubber gasket and is made of chrome-nickel material to prevent the intrusion of rodents.