Understanding Key Drainage Components: Flap Valves, Grease Traps, Hoppers and Interceptors
Drainage systems rely on multiple components to direct water, manage waste, and prevent blockages. Each part contributes to the overall function by managing specific aspects of flow or filtration. Flap valves , grease traps, hoppers, and interceptors are among the most used parts in commercial and domestic drainage setups. Their installation improves system performance, extends maintenance intervals, and reduces the risk of environmental issues. Flap Valves: Preventing Backflow Flap valves are installed at the outlet points of drainage pipes, usually where water exits into a river, sewer or other external system. Their primary function is to allow water to flow out but prevent it from coming back in. This backflow prevention protects buildings and infrastructure from flooding, especially during high rainfall or tidal conditions. Flap valves operate automatically, opening with outward flow and closing when reverse pressure is applied. Materials and Installation Most flap valves ar...