Backflow seal diameter DN110 with double return flap

• Technical Details:
• Double backflow valve.
• Connection diameter: 110 mm/DN 110.
• Made from ABS plastic and stainless steel.
• Colour: orange.

Backflow seal with backflow valve DN 110. - Duo Protect system with two flaps for double the safety diameter, 110 mm, high-quality European product in accordance with European Standard 13564, tested and approved by TÜV Rheinland with CE mark flaps with stainless steel inserts. Rodent proof and extends the life of the locking mechanism the flaps, protects even against unpleasant odours from domestic waste water systems. Protects all areas below flood level against flooding with emergency manual block and automatic valve, very easy to use. Why use a backflow plug? - When there is backflow, the backflow plug blocks the flow automatically through the backflow valve.If the first door is not completely locked due to soiling or other obstruction or a seal is broken, the second door automatically locks the flow.Low lying rooms are thus protected from flooding. After the reversal of the backflow, normal waste water drainage is restored automatically.In addition, our backflow plugs prevent rodents from entering your property via the waste water system due to the flaps with stainless steel inserts.A lock lever also enables the manual closing of the lid in the event of non use for long durations, say due to vacations or renovation.The reinforced design of our backflow plug ensures greater stiffness and stability, and thus guarantees a long service life. -