Check Valve

Approx. Rs 500 / PieceGet Latest Price

A rubber drainage flap valve, also known as a rubber check valve or a rubber flap check valve, is a type of one-way valve used in drainage and sewer systems to control the flow of fluids. These valves allow fluids to flow in one direction while preventing backflow or reverse flow. Rubber drainage flap valves are typically installed in pipes, culverts, stormwater drains, and other drainage structures to prevent flooding, sewage backup, and the entry of debris or pests into the system.

Here are the key features and components of a rubber drainage flap valve:

1. Material: Rubber drainage flap valves are constructed primarily from rubber or elastomeric materials, which provide flexibility, resilience, and resistance to corrosion and abrasion. Common materials used include EPDM (ethylene propylene diene monomer), Nitrile (Buna-N), and Neoprene.

2. Flap Design: The valve consists of a flexible rubber flap or gate that opens to allow fluid flow in the desired direction and closes to prevent backflow. The flap is typically hinged at one end and moves freely on its hinge mechanism. When fluid flows in the correct direction, the pressure of the fluid lifts the flap, allowing it to open. When fluid flow stops or reverses, the flap returns to its closed position under gravity or spring tension, sealing off the flow.