key Features

• Backflow Prevention: The primary function is a reliable one-way flap or check mechanism that automatically closes to stop the reverse flow of sewage and wastewater from the public sewer into private drainage systems, which is especially important during heavy rains or system overloads.

• Durable Material: Constructed from high-grade polyvinyl chloride (PVC), the valve is corrosion-resistant, chemical-resistant, and built for long-lasting performance in harsh underground or industrial environments.

• Pest and Odour Protection: The internal flap mechanism and tight seal are designed to prevent the entry of rodents, cockroaches, and snakes from sewer lines into buildings, and also help in blocking unpleasant sewer smells.

• Easy Installation: These valves are typically lightweight and designed for straightforward integration with standard 160mm PVC piping systems, compatible with both vertical and horizontal orientations.