Swing non-return valve ECO-FLAP

ECO-FLAP® N is a non-return flap valve designed for: - Direct connection on PVC pipe (or the same outside diameter) - Connections for any other ODs with a NORHAM FLEX-SEAL Plus® coupling. ECO-FLAP® N is a preventive solution against flooding risks and heavy rain periods. ECO-FLAP® N is a self-closing flap valve which works autonomously. It allows downstream water flow and stops upstream water flow to prevent flooding in households. Available from ND 100 to ND 200, the valve is designed to be placed at the end of a pipe.Made in recyclable PA and PPH, ECO-N FLAP® meets higher sealing criteria than the market standards:   - Max back pressure up to 1 bar   - Maximum acceptable leak rate = 0.1 l / min