Our Stop Silent Light check valves are designed for uncharged water up to 0.5 bar. Thanks to the simple friction clamping inside the valve, it can be quickly and easily installed in pipes for waste water, drinking water or rainwater. In addition, our non-return valves are suitable for both private and industrial customers. Stop Silent Light can also be used as a nose flap against the infiltration of small animals into your sewer system. When the waste water is discharged, the valve is hermetically sealed and thus prevents flooding.